238 results on '"endémisme"'
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2. The fossil record of turtles from the Pleistocene of Crete (Greece).
- Author
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VLACHOS, Evangelos
- Subjects
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FOSSILS , *PLEISTOCENE Epoch , *TURTLES , *ISLANDS , *HOLOCENE Epoch , *TESTUDINIDAE - Abstract
The Isle of Crete contains an important endemic fossil fauna that has been studied extensively in the past. An endemic fossil tortoise, Testudo marginata cretensis Bachmayer, Brinkerink & Symeonidis, 1975, had previously been named from Pleistocene cave deposits in the island, presumably being larger than the mainland species and having some important morphological differences as well. In this paper I revise these type specimens and describe for the first time numerous additional fossil specimens from the Pleistocene sites of Gerani IV, Zourida, Koumpes, Liko, Mavro Mouri IV, and Simonelli Caves (near Herakleion), Rethymnon fissure, and from the open site of Sitia in the eastern part of the Island. These specimens belong mostly to the marginated tortoise, but the presence of a terrapin is confirmed as well. These new fossils help to refute the validity of the Cretan subspecies, and change the range of the marginated tortoise during Pleistocene/Holocene times in the southern Balkans. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
3. The habitats of Leptochloopsis virgata in the Dominican Republic
- Author
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Cano Carmona, Eusebio, Velóz Ramírez, Alberto, Cano-Ortiz, Ana, Cano Carmona, Eusebio, Velóz Ramírez, Alberto, and Cano-Ortiz, Ana
- Abstract
Résumé.- Nous avons étudié les communautés de Leptochloopsis virgata en République Dominicaine. Elles sont généralement dans des sites ombragés, comme dans le sud-ouest et la vallée de Cibao. Elles sont localisées généralement dans la sous-province Caribeo-Atlantique, sur marne à Cibao, Azua, Bani, Lac Enriquillo, et sur les serpentines de Port Argent. Le haut pourcentage d’endémicité et les biotopes créent un grand nombre d'habitats endémiques, de haute valeur écologique et géobotanique. Nous proposons dans ce travail deux nouvelles alliances et quatre associations ; au moins celles-ci possèdent un caractère endémique et devraient être considérées comme des habitats priori- taires pour la conservation, d’autant qu'elles sont localisées dans des régions influencées par l’homme, avec un risque d’extinction d'espèces, This paper deals with the Leptochloopsis virgata esparto patches growing in the Dominican Republic. These communities thrive mostly in shaded areas, as happens in the southwest of the island and the Cibao valley, where xericity records are high and vegetative inactivity lasts for over 7 months. The Leptochloopsis virgata esparto patches tend to be located in the Caribbean-Atlantic Subprovince, on the Quaternary marls of the Cibao valley, Azua, Bani, Lago Enriquillo, and on the serpentines of Puerto Plata, with an ombrotype ranging from semiarid to subhumid, but with a semiarid and dry character in the areas colonized by the espartillo and a thermotype which always remains infra-tropical. The high percentage of endemic species and media give rise to a high number of endemic, ecologically and geobotanically, highly valuable habitats. This paper suggests two new alliances and four associations. These latter, a least, present an endemic character and, consequently, should be considered as priority habitats for preservation purposes, since they are located in man-altered areas and the risk of species extinction cannot be ignored., Depto. de Didáctica de las Ciencias Experimentales , Sociales y Matemáticas, Fac. de Educación, TRUE, pub
- Published
- 2024
4. Phylogeny and morphology of Fissidentaceae Schimp. in the South Atlantic Islands and description of a new species.
- Author
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DE OLIVEIRA TEIXEIRA, Tamara POLIANA, FARIA, Allan Laid Alkimim, BORDIN, Juçara, and CARVALHO-SILVA, Micheline
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ISLANDS , *PHYLOGENY , *SPECIES , *MORPHOLOGY , *CONTINENTS - Abstract
Phylogenetic and morphological analyzes were used to compare the samples collected in the Fernando de Noronha and Trindade Islands with the continental ones. A phylogenetic tree comprising 37 representatives of Fissidens Hedw. was constructed using plastid gene data (trnG and rps4). Specimens of F. flaccidus Mitt. and F. hornschuchii Mont. on the islands appeared to be genetically and morphologically similar to samples from the continent. Together these studies showed that the specimens identified as F. crispus Mont. from Fernando de Noronha differ from both those previously recorded on islands and those on the continent, leading us to describe a newly species. Furthermore F. steerei Grout is new recorded for Fernando de Noronha, Brazil. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
5. Nineta Navás, 1912 du Sud-Ouest de l'Europe (Neuropterida, Chrysopidae).
- Author
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CANARD, Michel and THIERRY, Dominique
- Abstract
Copyright of R.A.R.E - Association Roussillonnaise d'Entomologie is the property of Association Roussillonnaise d Entomologie and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
6. Melanothamnus macaronesicus Rodríguez-Buján & Díaz-Tapia, sp. nov. (Rhodomelaceae, Rhodophyta): a new turf-forming species from the Azores and the Canary Islands.
- Author
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RODRÍGUEZ-BUJÁN, Iván, PIMENTEL, Manuel, and DÍAZ-TAPIA, Pilar
- Abstract
The use of molecular tools in red algal diversity surveys often reveals the existence of undescribed species. Here, we report a new Macaronesian turf-forming red alga in the otherwise mostly Pacific genus Melanothamnus Bornet & Falkenberg. This new taxon, Melanothamnus macaronesicus Rodríguez-Buján & Díaz-Tapia, sp. nov. is described based on morphological and molecular (rbcL gene) evidence. Morphologically, it differs from other Melanothamnus taxa by a combination of characters that includes its decumbent habit with an extensive system of prostrate axes, small size (=2.5 cm), four ecorticate pericentral cells, unbranched to once-branched trichoblasts and spermatangial branches formed on the first dichotomy of trichoblasts that have a sterile apical cell. Molecularly, this new species differs from its congeners by sequence divergence =3.3% in the rbcL gene. Current known distribution of M. macaronesicus Rodríguez-Buján & Díaz-Tapia, sp. nov. is restricted to Macaronesia, suggesting that it could be endemic to this archipelago. Our findings suggest that endemicity among red algae might be more common than previously thought in this bioregion, particularly among easily overlooked turf-forming species. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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7. Notes on the bryophytes of Madagascar 3. Six new Lejeuneaceae species.
- Author
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PÓCS, Tamás
- Subjects
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BRYOPHYTES , *SPECIES , *BOTANICAL gardens - Abstract
As a result of several collecting trips to Madagascar in cooperation with the Parc Botanique de Tsimbazaza (Antananarivo, Madagascar) and the Missouri Botanical Gardens, five species new to science are described: Cheilolejeunea renigastria sp. nov., Cololejeunea translucens sp. nov., Drepanolejeunea tubana sp. nov., Lejeunea mamilliflora sp. nov. and Lejeunea tubulirostris sp. nov. Former Lejeunea alata var. patriciae is given species rank under the name of Lejeunea geisslerae nom. et stat. nov. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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8. Checklist of the liverworts and hornworts of French Polynesia.
- Author
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BARDAT, Jacques, SÖDERSTRÖM, Lars, HAGBORG, Anders, LEBLOND, Sébastien, and GRADSTEIN, S. Robbert
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LIVERWORTS , *GEODIVERSITY , *ARCHIPELAGOES , *ALTITUDES , *SURFACE area , *CORAL reefs & islands - Abstract
The present publication is the first modern catalogue of the liverworts and hornworts of French Polynesia and accepts 161 species of liverworts and 5 species of hornworts. In addition, 40 species are doubtful records of French Polynesia and 45 species are excluded. The checklist is mainly based on a compilation of published records; a few unpublished new records are included as well. The region has been explored very unevenly and liverwort and hornwort records are available for only ten islands of French Polynesia. Several islands of considerable surface area and elevation such as Fatu Hiva, Tahuata, Ua Pou and Ua Huka in the Marquesas, and Huahine and Tahaa in the Society Islands remain completely unexplored. In the Tuamotu Archipelago, only one atoll of the 60 has been surveyed (Makemo) and the number of reports for Gambier islands is quite low. The hepatic flora of French Polynesia appears to be relatively poor in species as compared to other Pacific island groups, such as the Fiji Islands (301 spp.) and New Caledonia (475 spp.) which are large continental islands (over 18 000 km²). Nevertheless, their floras show strong similarities at the family level. One species, Treubia tahitensis (Nadeaud) Besch., is only known from French Polynesia and may be considered endemic. The lack of endemic hepatic species in French Polynesia may be explained by the relatively small size, rather low elevation, low habitat diversity and recent geological age of the islands. It supports the notion that oceanic barriers do not operate as a major impediment to bryophyte dispersal. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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9. A seasonal dynamics and population status of the steno-endemic karst fairy shrimp Chirocephalus croaticus (Steuer, 1899) (Branchiopoda, Anostraca) from Slovenia.
- Author
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Jugovic, Jure and Jeklar, Martina
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POPULATION dynamics , *BRANCHIOPODA , *SHRIMPS , *FAIRIES - Abstract
We investigated the presence and ecology of Chirocephalus croaticus (Steuer, 1899) during three successive seasons (spring and autumn 2018, spring 2019) at Lake Petelinje (SW Slovenia). Although the presence (duration, abundance) of this fairy shrimp strongly differs among different seasons and both years, we showed that in a season with favourable conditions (spring 2018) its abundance increases rapidly at the end of the season as the shrimps persist in small pools until the water dries out. The species may appear again during the autumn, however, its abundance and persistence seem to be much lower and shorter than during the spring, respectively. Nevertheless, persistence and abundance may also differ strongly among the two successive spring seasons (less shrimps found during the shorter season of 2019 than in 2018). Larvae appear first, and are most abundant at the beginning of the season, and are followed by adult males (protandry) and females, which become most abundant at the end of the season. Also, larvae seem to be more abundant on exposed bottom (gravel path), while adults are much more abundant in the shelter of a submerged meadow. Ovigerous females had 9-37 cysts (fertilized eggs) in their brood pouch, and the position of differently developed eggs changed during the season; the presence of females without eggs during mid- and at the end of season indicates the production of thin-shelled summer, and thick-shelled winter cysts, respectively. In contrast with the water decrease that is in strongly negative association with the abundance of the fairy shrimps (lake size — abundance: r = − 0.56 , P < 0.001), no other environmental parameters were highly associated (r ⩽ | 0.38 |) with species abundance. Although the local population (one of only two currently known) seems to be in good condition, appropriate conservation action should be taken to prevent the decrease of this population in the future. Résumé: Nous avons étudié la présence et l'écologie de Chirocephalus croaticus (Steuer, 1899) au cours de trois saisons successives (printemps et automne 2018, printemps 2019) dans le Lac Petelinje (SO Slovanie). Bien que la présence (durée, abondance) de cette crevette diffère fortement selon les différentes saisons et les deux années, nous avons montré que dans une saison avec des conditions favorables (printemps 2018) son abondance augmente rapidement à la fin de la saison et que les crevettes persistent dans des flaques d'eau jusqu'à l'assèchement. L'espèce peut apparaitre de nouveau en automne, cependant son abondance semble être plus basse et sa persistance plus courte que pendant le printemps. Néanmoins, persistance et abondance peuvent aussi différer entre deux printemps successifs (moins de crevettes trouvées durant la courte saison de 2019 qu'en 2018). Les larves apparaissent en premier et sont plus abondantes en début de saison, elles sont suivies par des males adultes (protandrie) et les femelles qui deviennent plus abondantes en fin de saison. De plus, les larves semblent être plus abondantes sur des fonds ouverts (graviers), tandis que les adultes sont beaucoup plus abondants dans les abris de prairies submergées. Les femelles ovigères avaient 9-37 cystes (œufs fécondés) dans leur poche incubatrice, et la position des œufs à des stades de développement différents change au cours de la saison ; la présence des femelles sans œufs à la mi-saison et en fin de saison indique la production de cystes d'été à fine enveloppe et de cystes d'hiver à enveloppe épaisse. Alors que la baisse de l'eau est fortement associé négativement avec l'abondance des crevettes (taille du lac — abondance : r = − 0 , 56 , P < 0 , 001), aucun autre facteur environnemental n'a été aussi fortement associé (r ⩽ | 0 , 38 |) avec l'abondance de l'espèce. Bien que la population locale (une ou deux connues actuellement) semble être en bonne condition, une action de conservation appropriée devrait être prise pour éviter la diminution de cette population dans le futur. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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10. Building-Up Knowledge on Green Marine Macroalgae Diversity in the Western Antarctic Peninsula: Data from Two Molecular Markers Reveals Numerous Species with Amphipolar Distribution.
- Author
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Dubrasquet, Hélène, Garrido, Ignacio, Bruning, Paulina, Reyes, Janette, and Guillemin, Marie-Laure
- Abstract
Low levels of diversity and endemism, when compared to red or brown algae, have been reported for Antarctic green marine macroalgae (Chlorophyta). However, recent studies including the use of molecular markers have allowed us to revisit the taxonomical status of species thought to be well known, underlying the existence of unexpected Antarctic flora diversity at local and regional scale. In the present study, samples of green macroalgae along the Western Antarctic Peninsula (from the 62°S down to the 66°S) were sequenced for two genetic markers regularly used for species determination and barcoding in Chlorophyta (i.e., the plastid genes tufA and rbcL). From the 122 specimens of Chlorophyta sampled, 85 were sequenced for the gene tufA and 16 for the gene rbcL. Using the NCBI Nucleotide Blast Tool to compare our sequences to the ones available in public data depositories allowed the identification of 11 species. Three new species were reported for the area: Rosenvingiella radicans (Kütz.) Rindi, L.McIvor & Guiry, Urospora wormskioldii (Mertens) Rosenvinge and Ulvella islandica R.Nielsen & K.Gunnarsson. Furthermore, molecular identification revealed strong match (> 95%) between our Antarctic sequences and the ones obtained for samples from the northern hemisphere for Acrosiphonia arcta (Dillwyn) Gain, Prasiola crispa (Lightfoot) Kützing, Prasiola antarctica Kützing 1849, R. radicans, Ulva sp. A-GW, U. islandica, Urospora penicilliformis (Roth) Areschoug and U. wormskioldii confirming the amphipolar distribution of various taxa of Antarctic Trebouxiophyceae and Ulvophyceae. Amphipolar distribution seems more common in green than red or brown Antarctic seaweeds, so here we hypothesize that recurrent occurrence of long dispersal events could explain the low level of endemism observed for this phylum along the Antarctic coasts. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
11. Abundance and density estimates of landbirds on Grenada.
- Author
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Devenish-Nelson, Eleanor S. and Nelson, Howard P.
- Abstract
Copyright of Journal of Caribbean Ornithology is the property of Society for the Conservation & Study of Caribbean Birds and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
12. LES PLANTES DESTACABLES DEL PARC NACIONAL DE CABRERA.
- Author
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Seguí, Jaume, Rita, Juan, and Traveset, Anna
- Subjects
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MILITARY camps , *INVASIVE plants , *INTRODUCED plants , *NATIONAL parks & reserves , *BOTANY , *BALLAST water - Abstract
The flora of Cabrera Archipelago historically has received little scientific attention, due to its apparent little diversity and because it has been partly eclipsed by the important marine richness. In spite of this, the park's flora is quite rich, with c.500 species, with a high biogeographic interest (with endemic species to Cabrera, Gymnesians, thyerrenian area, and South-Eastern Iberian Peninsula) and also ecological interest (with unique ecological interactions). As for the alien and invasive plants, about 26 species, have been recorded, although it is necessary to periodically review their status. Currently, none of them represents an important ecological problem, being most of them restricted to the harbor area and military camp. In short, without practically anthropogenic disturbances, the flora of Cabrera National Park presents a good status of conservation, being an excellent outdoor laboratory to study how different species are adapting to the new conditions, both ecological and climatic. [ABSTRACT FROM AUTHOR]
- Published
- 2020
13. Novetats corològiques sobre Teucrium muletii (Lamiacae)
- Author
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Roselló Gimeno, Roberto, Ferrer Gallego, Pedro Pablo, Gómez, José, Peris Gisbert, Juan Bautista, Roselló Gimeno, Roberto, Ferrer Gallego, Pedro Pablo, Gómez, José, and Peris Gisbert, Juan Bautista
- Abstract
S'aporten nous registres que amplien la presència de l'endemisme Teucrium muletii a l'est de la península Ibèrica, a la província de Castelló (Comunitat Valenciana, Espanya)., New cites that expand the presence of the endemism Teucrium muletii to the east of the Iberian Peninsula are provided, in the province of Castelló (Valencian Community, Spain).
- Published
- 2023
14. Saxífraga vayredana, l’herba de Sant Segimon
- Author
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Universitat Politècnica de Catalunya. Departament d’Enginyeria Gràfica i de Disseny, Farrerons Vidal, Óscar, Universitat Politècnica de Catalunya. Departament d’Enginyeria Gràfica i de Disseny, and Farrerons Vidal, Óscar
- Abstract
El Montseny disposa de variades singularitats naturals, i en el món de les plantes montsenyenques destaca la família de les saxifragacies, més concretament el gènere Saxífraga, que etimològicament significa 'trencaroques'. Aquestes espècies viuen a les escletxes de les roques, en sòls granítics i de naturalesa àcida, i al món es troben limitades als països de clima temperat, sempre a les muntanyes. La Saxifraga vayredana és una planta endèmica del Montseny, el que significa que aquesta espècie viu exclusivament al nostre massís. Coneguda popularment com herba de Sant Segimon, segimona o bàlsam del Montseny, nom que la relacionen als llocs on era habitual fer-ne recol·lecta., Objectius de Desenvolupament Sostenible::15 - Vida d'Ecosistemes Terrestres, Postprint (published version)
- Published
- 2023
15. Les plantes aromatiques et médicinales au Maroc : statut, endémisme, chorologie et bioclimat.
- Author
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Jamaleddine, Mohammed, El Oualidi, Jalal, Taleb, Mohammed Sghir, El Alaoui-Faris, Fatima Ezzahra, and Benzine, Abdelmajid
- Subjects
- *
AROMATIC plants , *MEDICINAL plants , *ENDEMIC plants , *BIOCLIMATOLOGY , *PLANT growth - Abstract
Une liste exhaustive des plantes aromatiques et médicinales (PAM) utilisées en médecine traditionnelle au Maroc a été établie, grâce aux données bibliographiques, en vue d'élaborer un référentiel national. À cette fin, une base de données a été créée, qui a permis d'étudier le statut, l'endémisme, la chorologie et le bioclimat des PAM recensées. Les résultats montrent que les trois quarts de ces plantes sont spontanées. Le nombre total d'espèces et de sous-espèces endémiques larges (présents uniquement au Maroc ou partagées avec les territoires limitrophes) s'élève à quatre-vingt-dix-sept. Un nombre important sont communes avec l'Algérie. La répartition des PAM entre les différentes divisions géographiques du pays montre que les plus grands effectifs se rencontrent dans le Rif, le Haut Atlas, le Moyen Atlas ainsi que les plaines et plateaux atlantiques du Maroc septentrional. Les principaux traits bioclimatiques de la flore aromatique et médicinale sont à peu près les mêmes que ceux observés dans l'ensemble de la flore vasculaire du pays. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
16. A new Miocene and Pleistocene continental locality from Nakhon Ratchasima in Northeastern Thailand and its importance for vertebrate biogeography.
- Author
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Naksri, Wilailuck, Nishioka, Yuichiro, Duangkrayom, Jaroon, Métais, Grégoire, Handa, Naoto, Jintasakul, Pratueng, Martin, Jeremy E., Sila, Saitong, Sukdi, Wongsakon, Suasamong, Kriangkrai, Tong, Haiyan, and Claude, Julien
- Subjects
- *
PLEISTOCENE Epoch , *MIOCENE Epoch , *FOSSIL vertebrates , *BIOGEOGRAPHY , *WATERSHEDS , *PLATEAUS - Abstract
Two new fossil assemblages are described from Sin Charoen sandpit exploited in Phimai District, Nakhon Ratchasima Province, Northeastern Thailand. In this province, vertebrate fossils have been yielded from the Miocene to the Pleistocene deposits. The Miocene fauna has been documented in detail by a rich fossil record from several localities in Chaloem Phra Kiat District, while the Pleistocene fauna has been well studied in Khok Sung sandpit in Mueang Nakhon Ratchasima District. The fossil assemblage from the upper section of Sin Charoen sandpit is similar to the Middle Pleistocene fauna of Khok Sung, which is composed of extinct and extant species of mammals and reptiles. Moreover, the finding of Gavialis cf. bengawanicus and Duboisia santeng demonstrates a strong faunal relationship with Early-Middle Pleistocene faunas of Java (e.g., Trinil). The occurrence of large fluviatile turtles and gharials from Sin Charoen sandpit indicates that the past river system was more developed than today and that the Khorat Plateau was at a lower elevation at the time of deposition. The fossil assemblage from the lower section includes two rhinocerotids and an advanced form of the genus Stegolophodon and is similar to the Late Miocene fauna found in situ in the sandpits of Chaloem Phra Kiat District. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
17. Saxífraga vayredana, l’herba de Sant Segimon
- Author
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Farrerons Vidal, Óscar and Universitat Politècnica de Catalunya. Departament d’Enginyeria Gràfica i de Disseny
- Subjects
Montseny ,Herba de Sant Segimon ,Endemisme ,Saxífraga vayredana ,Reserva de la biosfera ,Parc natural - Abstract
El Montseny disposa de variades singularitats naturals, i en el món de les plantes montsenyenques destaca la família de les saxifragacies, més concretament el gènere Saxífraga, que etimològicament significa 'trencaroques'. Aquestes espècies viuen a les escletxes de les roques, en sòls granítics i de naturalesa àcida, i al món es troben limitades als països de clima temperat, sempre a les muntanyes. La Saxifraga vayredana és una planta endèmica del Montseny, el que significa que aquesta espècie viu exclusivament al nostre massís. Coneguda popularment com herba de Sant Segimon, segimona o bàlsam del Montseny, nom que la relacionen als llocs on era habitual fer-ne recol·lecta. Objectius de Desenvolupament Sostenible::15 - Vida d'Ecosistemes Terrestres
- Published
- 2023
18. Mid-Cretaceous/Albian (Cretaceous) ostracod assemblages from NW Hungary reflecting deep marine, nearshore and non-marine environments.
- Author
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Cséfán, Tünde and Tóth, Emőke
- Subjects
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CRETACEOUS paleogeography , *ARCHAEOLOGICAL assemblages , *MARINE ecology , *PETROLOGY , *TAXONOMY - Abstract
Abstract The Albian sediments of the Transdanubian Range in Hungary were deposited in non-marine to fully-marine environments. The studied sections revealed diverse benthic ostracod faunas with moderately-preserved specimens. Forty-six taxa are identified and Cypridea zalanyii n. sp. is newly described. The detailed palaeoecological study of these ostracod faunas provided an opportunity to distinguish eight assemblages. The assemblages include limnic, brackish lagoon, shallow marine, reef and low oxygenated semi-enclosed basin environments in the Northern Tethys region we investigated. This work contributes to the knowledge about Albian non-marine faunas from Europe and explores ecological requirements of brackish faunas. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
19. Nomenclature of Helicidae (Gastropoda: Pulmonata) endemic to the Balearics
- Author
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Ruiz Altaba, Cristian and Ruiz Altaba, Cristian
- Abstract
Es revisa la nomenclatura dels helícids endèmics actuals coneguts de les Balears. Els noms emprats per a aquests tàxons han estat subjectes a una confusió d’opinions i concepcions errònies. De la mateixa manera, els arbres filogenètics publicats són afectats per artefactes topològics. La revisió taxonòmica està en concordança amb la història biogeogràfica de l’arxipèlag. S’accepten tres gèneres diferenciats adaptativament: Allognathus Pilsbry, 1888, Iberellus Hesse, 1908 i Tramuntanicola Altaba, 2022. El primer inclou una sola espècie: A. graellsianus (Pfeiffer, 1848), endèmica de la part septentrional de la serra de Tramuntana a Mallorca. Aquest nom específic va ser proposat en substitució d’Helix grateloupi Graells, 1846, el qual estava ocupat prèviament per H. grateloupi Pfeiffer, 1842 de Madagascar. Al segon gènere hom hi reconeix quatre espècies: I. balearicus (Rossmässler, 1838), endèmica de la part central i meridional de la serra de Tramuntana i descrita originalment com a varietat d’Helix hispanica Rossmässler, 1838 (pertanyent aquesta a Iberus Montfort, 1810 i ocupada abans per Helix lactea var. hispanica Potiez & Michaud, 1835); I. minoricensis (Mittre, 1842), endèmica de Menorca i els illots adjacents (i localment introduïda a Eivissa), amb la subespècie I. minoricensis palumbariae Aguilar-Amat, 1933; I. companyonii (Aleron in Companyo, 1837), endèmica de Mallorca (excepte Tramuntana) i localment introduïda a la costa catalana, que fou proposada originalment en sinonímia, és el tipus d’Iberellus per designació original, i inclou la subespècie microinsular I. c. horadadae Jaeckel, 1952; i I. pythiusensis Bofill & Aguilar-Amat, 1924, endèmica de les Pitiüses, per la qual hom pot emprar el subgènere Nesiberus Haas, 1934 i que possiblement inclou I. tanitianus Forés & Vilella, 1992. Tramuntanicola comprèn només una espècie, endèmica de la Tramuntana nord: T. culminalis Altaba, 2022. Des d’aquesta base hauria de ser més fàcil continuar amb estudis sobre la fi, The nomenclature of the endemic helicids of the Balearic Islands is revised along with the current state of taxonomic knowledge about them. The names used for these taxa have been subject to a turmoil of opinions and misconceptions. Likewise, published phylogenetic trees are affected by topological artifacts. The revised taxonomy is in agreement with the archipelago’s historical biogeography. Three adaptively distinct genera are accepted: Allognathus Pilsbry, 1888, Iberellus Hesse, 1908 and Tramuntanicola Altaba, 2022. The former includes a single species: A. graellsianus (Pfeiffer, 1848), endemic to the northern Serra de Tramuntana in Mallorca. This species name was proposed in substitution for Helix grateloupi Graells, 1846, which is preoccupied by H. grateloupi Pfeiffer, 1842 from Madagascar. In Iberellus four species are recognized: I. balearicus (Rossmässler, 1838), endemic to the southern serra de Tramuntana and originally described as a variety of Helix hispanica Rossmässler, 1838 (preoccupied by Helix lactea var. hispanica Potiez & Michaud, 1835 and referring to a species belonging into Iberus Montfort, 1810); I. minoricensis (Mittre, 1842), endemic to Menorca and adjacent islets (and locally introduced into Ibiza), with the microinsular subspecies I. minoricensis palumbariae Aguilar-Amat, 1933; I. companyonii (Aleron in Companyo, 1837), endemic to Mallorca (except Tramuntana) and locally introduced into the Catalan coast, that was originally proposed in synonymy, is the type of Iberellus by original designation, and includes the microinsular subspecies I. c. horadadae Jaeckel, 1952; and I. pythiusensis Bofill & Aguilar-Amat, 1924, endemic to the Pytiusics, for which the subgenus Nesiberus Haas, 1934 can be used, possibly including I. tanitianus Forés & Vilella, 1992. Tramuntanicola comprises only one species, endemic to northern Tramuntana: T. culminalis Altaba, 2022. From this basis it should now be easier to proceed with studies on the phylogeny, ecology
- Published
- 2022
20. Analyse floristique et phytogéographique de quelques massifs de la Kabylie des Babors (Nord-Est algérien) / Floristic and phytogeographical analysis of some mountains to the Kabylia of Babors (Northeastern Algeria)
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Bouchibane, Mebarek, Zemouri, Mourad, Bougaham, Abdelazize Franck, and Toumi, Rachid
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Ecology ,phytogéographie ,conservation ,zone de refuge ,endémisme ,flore ,flora ,phytogeography ,endemism ,refuge area ,Ecology, Evolution, Behavior and Systematics - Abstract
In order to know the natural heritage, a phytogeographical study based on the phytosociological sigmatist method was conducted on forest vegetation in two understudied mountains in the Babors region (Northeastern Algeria). The floristic list obtained from 60 surveys carried out in forest and preforest formations of Zeen Oak (Quercus canariensis Willd.) and Cedar (Cedrus atlantica (Endl.) Carrière) as well as mountain grasslands (primary grasslands) includes 409 taxa belonging to 261 genera and 75 families of vascular plants. Analysis of the chorological spectrum shows not only the importance of Mediterranean element with 55.3% of the listed species, but above all the importance of the taxa which belong to the northern element (24.4%). The study area contains 68 (16.6%) Algerian endemics or sub-endemics. Analysis of the global biological spectrum showed the significant dominance of hemicryptophytes (46.2%) over other life-forms (7.8 to 22.8%). This area is an exceptional current refuge for non-Mediterranean and/ or endemic flora., Dans l’objectif de renforcer les connaissances sur le patrimoine naturel, une étude chorologique basée sur la méthode phytosociologique sigmatiste a été menée sur la végétation forestière dans deux massifs montagneux peu étudiés des Babors (Nord-Est algérien). La liste floristique obtenue à partir des 60 relevés effectués au niveau des formations forestières et préforestières de chêne zéen (Quercus canariensis Willd.), de cèdre (Cedrus atlantica (Endl.) Carrière) et des pelouses de montagne (pelouses primaires) comprend 409 taxons appartenant à 261 genres et 75 familles de plantes vasculaires. L’analyse du spectre chorologique brut montre non seulement l’importance de l’ensemble méditerranéen avec 55,3 % des espèces répertoriées, mais surtout celle des taxons qui relèvent de l’ensemble septentrional (24,4 %). Les massifs étudiés comptent 68 taxons (16,6 %) endémiques ou sub-endémiques algériens. L’analyse du spectre biologique global indique une dominance significative des hémicryptophytes (46,2 %) sur les autres formes de vie (7,8 à 22,8 %). Cette région constitue un refuge conservatoire pour une flore d’origine non méditerranéenne et/ ou endémique., Bouchibane Mebarek, Zemouri Mourad, Bougaham Abdelazize Franck, Toumi Rachid. Analyse floristique et phytogéographique de quelques massifs de la Kabylie des Babors (Nord-Est algérien) / Floristic and phytogeographical analysis of some mountains to the Kabylia of Babors (Northeastern Algeria). In: Ecologia mediterranea, tome 47 n°2, 2021. pp. 51-72.
- Published
- 2021
21. Inventaire et état de conservation des plantes aromatiques et médicinales (PAM) au Maroc.
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Jamaleddine, M., El Oualidi, J., Taleb, M., Thévenin, T., and El Alaoui-Faris, F.
- Abstract
Copyright of Phytothérapie is the property of John Libbey Eurotext Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2017
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22. Bazzania konratiana sp. nov. (Marchantiophyta: Lepidoziaceae) from Madagascar.
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Sass-Gyarmati, Andrea
- Subjects
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LEPIDOZIACEAE , *BIOSPHERE reserves , *LEAVES , *BIODIVERSITY , *JUNGERMANNIALES - Abstract
Bazzania konratiana sp. nov. is described from Mananara Nord Biosphere Reserve and National Park. The new species was collected from a wet lowland rainforest where annual rainfall reaches 3500 mm. It differs from the similar Bazzania approximata Onraedt, an endemic species from Seychelles, in its overall larger size, the thick-walled leaf cells with large bulging trigones and proportion of hyaline and chlorophyllose cells in the underleaves. [ABSTRACT FROM AUTHOR]
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- 2017
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23. La flore vasculaire de l'île de Cavallo (archipel des Lavezzi, Corse) : diversité, intérêt biogéographique et conservation.
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MÉDAIL, Frédéric, PETIT, Yohan, DELAGE, Alain, PARADIS, Guilhan, and HUGOT, Laetitia
- Abstract
Copyright of Ecologia Mediterranea is the property of Ecologia Mediterranea and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
24. Diversity and endemicity in the scorpion fauna of Vietnam. A preliminary synopsis.
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Pham, Dinh-Sac, Tran, Thi-Hang, and Lourenço, Wilson R.
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- *
SCORPION populations , *INSECT diversity , *CLASSIFICATION of invertebrates , *ENDEMIC animals - Abstract
A faunistic inventory is proposed for the known Vietnamese scorpion species. The aim of this contribution is to bring an up-to-date checklist of all known species in Vietnam, prior to a more detailed study of the Vietnamese fauna to be performed by one of the authors (T.-H.T.) in the context of the preparation of a doctoral degree. Final taxonomic decisions should be taken at the end of the doctoral dissertation. [ABSTRACT FROM AUTHOR]
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- 2017
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25. L’herbari de l’Institut Botànic de Barcelona com una eina per la conservació dels tàxons endèmics i amenaçats de Catalunya
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N. Nualart, N. Montes-Moreno, L. Gavioli, and N. Ibáñez
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conservació ,documentació de col·leccions ,endemisme ,extinció ,flora amenaçada ,conservación ,documentación de colecciones ,endemismo ,extinción ,flora amenazada ,Biology (General) ,QH301-705.5 ,Botany ,QK1-989 - Abstract
El herbario del Instituto Botánico de Barcelona (BC) es la colección de plantas más importante de Cataluña y la segunda de España y es representativo de la flora de la región mediterránea occidental. Incluye la colección general y otras colecciones históricas (desde el siglo XVII hasta principios del XX). Los objetivos principales de este trabajo han sido evaluar la representatividad de los táxones endémicos y amenazados de Cataluña en el herbario así como aportar información de tipo cronológico y geográfico de intensidad de recolección y nuevos datos altitudinales, corológicos, cronológicos, fenológicos y de riesgo de sobrerecolección. Se ha analizado la colección general y una parte de los herbarios históricos informatizados (Cadevall, Hieraciotheca Gallica et Hispanica, Institució Catalana d’Història Natural, Salvador, Societat Botànica Barcelonesa y Trèmols [volúmenes I-XXI]). Se han encontrado ejemplares de Cataluña del 82,24% de los 304 táxones endémicos y amenazados. Las zonas más herborizadas son el valle de Ribes, Montserrat, el macizo del Port, la sierra de Cardó, el macizo del Montseny y la sierra del Montsec. Se amplía la distribución de Berberis vulgaris L. subsp. seroi O. Bolòs & Vigo y Stachys maritima Gouan. Se aportan nuevos datos altitudinales y fenológicos para nueve y 40 táxones, respectivamente. [ct] L’herbari de l’Institut Botànic de Barcelona (BC) és, pel seu volum, la col·lecció de plantes més important de Catalunya i la segona d’Espanya i és representatiu de la flora de la regió mediterrània occidental. Inclou, a banda de la col·lecció general, altres col·leccions històriques (des del segle XVII fins a principis del XX). Els objectius principals d’aquest treball han estat avaluar la representativitat a l’herbari dels tàxons endèmics i amenaçats de Catalunya així com aportar informació de caire cronològic i geogràfic d’intensitat de recol·lecció i noves dades altitudinals, corològiques, cronològiques, fenològiques i de risc de sobrerecol·lecció. S’ha analitzat la col·lecció general i una part dels herbaris històrics informatitzats (Cadevall, Hieraciotheca Gallica et Hispanica, Institució Catalana d’Història Natural, Salvador, Societat Botànica Barcelonesa i Trèmols [volums I-XXI]). S’han trobat exemplars de Catalunya del 82,24% dels 304 tàxons endèmics i amenaçats. Les zones més herboritzades són la vall de Ribes, Montserrat, el massís del Port, la serra de Cardó, el massís del Montseny i la serra del Montsec. S’amplia la distribució de Berberis vulgaris L. subsp. seroi O. Bolòs & Vigo i Stachys maritima Gouan. S’aporten noves dades altitudinals i fenològiques per a nou i 40 tàxons, respectivament.
- Published
- 2012
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26. La flore endémique du Nord-Est algérien face à la menace des espèces envahissantes
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Nora Sakhraoui, Ratiba Boussouak, Azzedine Chefrour, Azzedine Hadef, and Sophia Metallaoui
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0106 biological sciences ,Pulmonary and Respiratory Medicine ,Flora ,Vegetación - Argelia ,Subspecies ,010603 evolutionary biology ,01 natural sciences ,Invasive species ,03 medical and health sciences ,Carpobrotus edulis ,Chorology ,Endémisme ,Pediatrics, Perinatology, and Child Health ,Endemism ,Floristic lists ,030304 developmental biology ,0303 health sciences ,biology ,Northeastern Algeria ,Ecology ,biology.organism_classification ,Taxon ,Geography ,Listes floristiques ,Species richness ,Nord-Est algérien ,Chorologie ,Espèces envahissantes ,Acacia saligna - Abstract
Nous avons établi pour la première fois dans la région de Skikda, les listes (liste actualisée et liste des taxons à rechercher) de la flore endémique et des espèces naturalisées jugées envahissantes en méditerranée, représentant une menace potentielle pour cette flore, en réalisant des prospections au niveau de douze communes. Cela a conduit à l’identification de 64 taxons endémiques dont plus de la moitié se trouve dans la liste actualisée (38 taxons). Ces plantes appartiennent à 26 familles, 46 genres et se répartissent en 50 espèces, 11 sous-espèces et 3 variétés. Les endémiques algéro-tunisiennes sont les plus abondantes (30 taxons). 11 espèces envahissantes en méditerranée sont naturalisées dans notre région dont 5 colonisent des milieux naturels particulièrement riches en espèces endémiques. L’Acacia saligna, Carpobrotus edulis et Opuntia ficus-indica sont les principales espèces menaçantes de cette richesse biologique.
- Published
- 2020
27. Seseli farrenyi: un endemisme empordanès en vies d'extinció?
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J. López-Pujol, M. C. Martinell, S. Massó, C. Blanché, and J. Molero
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amenaza ,cataluña ,conservación ,declive ,demografía ,endemismo ,especies invasoras ,fragmentación ,plan de recuperación ,amenaça ,catalunya ,conservació ,declivi ,demografia ,endemisme ,espècies invasores ,fragmentació ,pla de recuperació ,Biology (General) ,QH301-705.5 ,Botany ,QK1-989 - Abstract
Seseli farrenyi es un endemismo estrictamente catalán, que cuenta con un número muy reducido de poblaciones en la franja litoral norte del cabo de Creus (Alt Empordà). La especie ha sido catalogada como “En Peligro” (EN) según los criterios de la UICN basándose en una serie de estudios realizados a finales de los años noventa, incluyendo censos y cartografía detallada. Tras poco más de una década, la realización de un nuevo censo por parte del mismo equipo de investigadores revela una pérdida de más del 90% del total de individuos, así como la desaparición de la localidad clásica de la especie, justificando elevar su categoría de amenaza a “En Peligro Crítico” (CR). Una de las prioridades del plan de recuperación para esta especie (la redacción y aplicación del cual se deriva de la inclusión de S. farrenyi en el Catàleg de Flora Amenaçada de Catalunya) debería ser la realización de estudios demográficos que permitieran conocer las causas de este declive poblacional. [ct] Seseli farrenyi és un endemisme estrictament català, que compta amb un nombre molt reduït de poblacions a la franja litoral nord del cap de Creus (Alt Empordà). L’espècie ha estat catalogada com a “En Perill” (EN) segons els criteris de la UICN en base a una sèrie d’estudis realitzats a finals dels anys noranta, que van incloure un cens i una cartografia detallada. Després de poc més d’una dècada, un nou cens realitzat pel mateix equip d’investigadors revela una pèrdua de més de 90% del nombre total d’individus, junt amb la desaparició de la localitat clàssica de l’espècie, justificant elevar la seva categoria d’amenaça a “En Perill Crític” (CR). Una de les prioritats del pla de recuperació per a l’espècie (la redacció i aplicació del qual es deriva de la inclusió de S. farrenyi al Catàleg de Flora Amenaçada de Catalunya) hauria d’ésser la realització d’estudis demogràfics que permetin conèixer la causa del seu declivi poblacional.
- Published
- 2010
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28. Scorpions from the Mitaraka Massif in French Guiana. II. Description of a new species of Ananteris Thorell, 1891 (Scorpiones: Buthidae).
- Author
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Lourenço, Wilson R.
- Subjects
- *
SCORPIONS , *ANANTERIS , *ANIMAL species , *ZOOGEOGRAPHY , *ENDEMIC animals - Abstract
A new remarkable species belonging to the genus Ananteris Thorell, 1891 (Buthidae) is described from the Mitaraka Massif in French Guiana, a site located near the borders of French Guiana, Brazil, and Suriname. The description of this new species brings further evidence about the biogeographic patterns of distribution presented by most species of the genus Ananteris , which are highly endemic in most biogeographic realms of South America, including the Tepuys and Inselberg Massifs. [ABSTRACT FROM AUTHOR]
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- 2016
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29. Scorpions from the Mitaraka Massif in French Guiana: Description of one new genus and species (Scorpiones: Chactidae).
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Lourenço, Wilson R.
- Subjects
- *
CHACTIDAE , *SPECIES distribution , *BIOGEOGRAPHY , *INSELBERGS - Abstract
A new genus and species, Spinochactas mitaraka gen. n., sp. n. (Chactidae) are described from the Mitaraka Massif in French Guiana, a site located near the borders of French Guiana, Brazil, and Suriname. The description of the new genus and species brings further evidence of the biogeographic pattern of distribution presented by some elements of the family Chactidae endemic to the Tepuys or to the Inselberg formations of South America. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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30. Endemism in native floras of California's Channel Islands correlated with seasonal patterns of aeolian processes.
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Riley, Lynn and McGlaughlin, Mitchell E.
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BIOGEOGRAPHY , *PLANT diversity , *REGRESSION analysis , *ANGIOSPERMS , *SEED dispersal , *WINDS - Abstract
This study revisits the hypothesis that dispersal to California's Channel Islands follows a stepping-stone pattern from mainland California, based on earlier work indicating that the floras conform to classic island-biogeographic expectations. A re-examination of data incorporating the directions of prevailing and seasonal Santa Ana winds greatly strengthens the power of the model to explain levels of endemism in the Channel Island floras, and suggests the importance of aoelian processes for island colonization. Regression analysis of percent endemism in the native flora against distances measured along the axis of winds improves the r2 from 0.099 to 0.482. The endemic species that flower in the dry season as a percent of the native flora of the islands is also strongly related to these revised source distances ( r2 = 0.665). Furthermore, the native floras of the southern islands are nested subsets of the floras of the northern islands, and angiosperm flowering peaks during the dry season, providing seed for seasonally based dispersal. These results suggest that the northern islands may have served as a source of colonists for the southern islands, and that the pattern of aeolian inputs into an island system should be considered in other plant biogeographic studies. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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31. Biogéographie des plantes vasculaires endémiques d’Afrique centrale occidentale: Des mécanismes passés aux stratégies de conservation futures
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Hardy, Olivier J., Stévart, Tariq, Meerts, Pierre, Drouet, Thomas, Ngomanda, Alfred, Couteron, Piere, Texier, Nicolas, Hardy, Olivier J., Stévart, Tariq, Meerts, Pierre, Drouet, Thomas, Ngomanda, Alfred, Couteron, Piere, and Texier, Nicolas
- Abstract
L’origine de la distribution des espèces de plantes endémiques d’Afrique centrale occidentale (ACO), un territoire essentiellement forestier et parmi les plus riches en espèces du continent, questionnent depuis longtemps les biogéographes. Il a été suggéré que l’aire de distribution des espèces forestières se serait contractée au sein de quelques refuges forestiers pendant les périodes de maximums glaciaires, où le climat était plus froid et plus sec, et certaines espèces n’auraient pas suivies l’expansion de la forêt lorsque le climat est redevenu plus favorable. Ainsi, la concentration d’espèces forestières endémiques d’aires restreintes refléterait les anciennes zones de refuges forestiers. L’identification des territoires abritant une forte richesse en espèces endémiques et/ou menacées d’extinction est également cruciale dans le cadre de la mise en place de stratégies de conservation.Cette thèse a un double objectif :(i) étudier dans quelle mesure la distribution actuelle des espèces forestières endémiques d’ACO peut être expliquée par leur persistance au sein de refuges forestiers durant les maximums glaciaires du Quaternaire ;(ii) analyser si les stratégies de conservation actuellement en place au Gabon, un pays situé au centre de l’ACO, protègent les espèces de plantes endémiques et menacées d’extinction. Pour réaliser ces objectifs, une compilation et une vérification des 19 876 occurrences des 1 145 taxons (espèces et infra-espèces) endémiques d’ACO, ont été effectuées. Au total, environ 13% de la flore d’ACO est endémique de cette région, dont 88% sont des taxons forestiers. Nos résultats montrent que la capacité de dispersion des taxons et l’hypothèse des refuges forestiers semblent être des facteurs explicatifs des différences de taux d'endémisme entre les formes de croissance et entre les groupes taxonomiques. L’analyse de la distribution spatiale des espèces forestières endémiques a mis en évidence la présence de dix aires d’endémisme forestier en ACO, The origin of the distribution of plant species endemic to western Central Africa (WCA), an area dominated by forests and among the continent’s richest in species, has long been questioned by biogeographers. It has been suggested that the ranges of forest species contracted to within a few forest refugia during periods of glacial maxima, when the climate was cooler and drier, and that some species may not have followed the re-expansion of forest when climatic conditions became more favorable. The concentration of forest species endemic to restricted areas would thus reflect the former areas of forest refugia. The identification of areas rich in endemic and/or endangered species is also crucial for implementing efficient conservation strategies. This thesis has two objectives: (i) to investigate the extent to which the current distribution of forest species endemic to WCA can be explained by their persistence within forest refugia during the Quaternary ice-ages; (ii) to analyse whether the conservation strategies adopted in Gabon, a country located at the centre of WCA, protect the country’s endemic and endangered plant species. To achieve these objectives, a compilation and verification of 19,876 occurrences of the 1,145 taxa (species and sub-species) endemic to WCA were performed. In total, about 13% of the flora of WCA is endemic to the region, 88% of which are forest taxa. The results show that the dispersal capacity of taxa and the forest refugia hypothesis seem to be explanatory factors for the differences observed in the rate of endemism between growth forms and between taxonomic groups. The analysis of the spatial distribution of endemic forest species revealed the presence of ten areas of forest endemism in WCA, six of which are partly congruent with the mountain ranges and the coastal part of the region, areas proposed in the literature as forest refugia. The results suggest, however, that other forest refugia may have existed further inland. Based on the a, Doctorat en Sciences, info:eu-repo/semantics/nonPublished
- Published
- 2021
32. Flore et végétation vasculaires des petites îles et îlots du littoral de Galeria à Porto (Réserve naturelle de Scandula et environs, Corse occidentale)
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Médail, Frédéric, Petit, Yohan, Paradis, Guilhan, Hugot, Laetitia, Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), and Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS)
- Subjects
biodiversity ,conservation ,vegetation dynamics ,endemism ,biological surveys ,small Mediterranean islands ,World heritage site (UNESCO) ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,biodiversité ,dynamique de la végétation ,endémisme ,inventaires biologiques ,petites îles de Méditerranée ,site du Patrimoine mondial (UNESCO) ,ComputingMilieux_MISCELLANEOUS - Abstract
This study provides an inventory of the flora and terrestrial vascular plants of small islands and islets of the Scandula area, between the north of Galeria and Porto, along the western coast of Corsica. A synthesis on the environnemental and human histories is presented for the largest island of this sector (Gargalu, 22 ha). The thirty or so islands and islets harbour an oustanding biodiversiy, with several very rare or endemic species, which are well preserved thanks to the Natural Reserve of Scandola. Some proposals are given for a better knowledge and conservation of this original micro-insular biodiversity., Cette étude dresse l'inventaire de la flore et végétation vasculaires terrestres des petites îles et îlots du secteur de Scandula, depuis le nord de Galeria jusqu'à Porto, sur la côte occidentale de la Corse. Une synthèse portant sur l'histoire de l'environnement et de l'occupation humaine ancienne est présentée pour la plus grande île du secteur (Gargalu, 22 ha). La trentaine d'îles et d'îlots recensés abritent une biodiversité végétale remarquable, avec plusieurs espèces très rares ou endémiques, qui s'avèrent bien préservées notamment grâce à la Réserve naturelle de Scandola. Des pistes sont proposées pour une meilleure connaissance et conservation de cette biodiversité micro-insulaire originale., Médail Frédéric,Petit Yohan,Paradis Guilhan,Hugot Laetitia. Flore et végétation vasculaires des petites îles et îlots du littoral de Galeria à Porto (Réserve naturelle de Scandula et environs, Corse occidentale) . In: Le Journal de botanique, n°88, 2019. pp. 13-118.
- Published
- 2019
33. Valoració de la implantació de noves poblacions translocades de l’endemisme ibèric altament amenaçat de la flora espanyola Cistus heterophyllus subsp. carthaginensis (Cistaceae)
- Author
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Universidad de Alicante. Departamento de Ecología, Chenoll Garcia, Josep, Bonet, Andreu, Ferrer Gallego, Pedro Pablo, Universidad de Alicante. Departamento de Ecología, Chenoll Garcia, Josep, Bonet, Andreu, and Ferrer Gallego, Pedro Pablo
- Abstract
En aquest treball s’ha avaluat la viabilitat d’autoperpetuar-se de dues poblacions translocades de l’endemisme de la flora espanyola en perill d’extinció Cistus heterophyllus subsp. carthaginensis. Aquestes es troben localitzades als termes municipals de la Pobla de Vallbona i Bétera, a la província de València. Aquestes poblacions introduïdes persegueixen l’objectiu del projecte de conservació de l’espècie a la Comunitat Valenciana, que obliga a crear una sèrie de poblacions amb capacitat per a generar nous individus en el temps. Per a realitzar l’avaluació, s’han caracteritzat tres aspectes fonamentals de la biologia reproductiva que repercuteixen sobre la producció de fruits i llavors: el procés de floració, la interacció amb la comunitat de pol·linitzadors i la quantificació de la fructificació obtinguda; tot sobre una sèrie d’individus seleccionats aleatòriament de les dos poblacions. Els resultats de la valoració indiquen l’èxit de les translocacions, ja que s’ha aconseguit una producció notable de propàguls i s’ha observat un alt potencial de la població per a produir-ne malgrat els efectes de l’activitat antròpica. També es desprenen algunes indicacions que possiblement podrien millorar les plantacions actuals de l’espècie i les futures reintroduccions per tal de maximitzar la producció de fruits i llavors, així com la variabilitat genètica., We evaluated the viability for self-perpetuation of two translocated populations of Cistus heterophyllus subsp. carthaginensis, an endangered flower endemic to Spain, located around the towns of La Pobla de Vallbona and Bétera in the province of Valencia. These populations were introduced to further the objectives of the Valencian Community Plant Species Conservation Plan, promoting the setting up of populations with the capacity to generate new individuals over time. To conduct the evaluation three fundamental aspects of reproductive biology have been characterized on a series of randomly selected individuals from both populations and which affect the production of fruits and seeds: the flowering process, the interaction with the community of pollinators and the quantity of fructification. The results of the evaluation showed a positive trend with a remarkable level of seed production achieved together with an observed high potential of the population to produce them, all this despite the effects of anthropic activity. We include some suggestions about improvements in the species’ current plantations and on the maximising of fruit and seed production in future reintroductions, as well as genetic variability.
- Published
- 2020
34. La flore endémique du Nord-Est algérien face à la menace des espèces envahissantes
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Sakhraoui, Nora, Boussouak, Ratiba, Metallaoui, Sophia, Chefrour, Azzedine, Hadef, Azzedine, Sakhraoui, Nora, Boussouak, Ratiba, Metallaoui, Sophia, Chefrour, Azzedine, and Hadef, Azzedine
- Abstract
The endemic flora of Northeastern Algeria facing the threat of invasive plants. We established for the first time for the Skikda region, the lists (updated list and list of taxa to research) of endemic flora and naturalized species considered invasive in the Mediterranean, representing a potential threat to this flora, by conducting surveys at the level of twelve communes. This led to the identification of 64 endemic taxa more than half of which are in the updated list (38 taxa). These plants belong to 26 families, 46 genera and are divided into 50 species, 11 subspecies and 3 varieties. The Algerian-Tunisian endemics are the most abundant (30 taxa). 11 invasive species in the Mediterranean are naturalized in our region, 5 of which colonize natural environments particularly rich in endemic species. Acacia saligna, Carpobrotus edulis and Opuntia ficus-indica are the main threatening species of this biological richness., Nous avons établi pour la première fois dans la région de Skikda, les listes (liste actualisée et liste des taxons à rechercher) de la flore endémique et des espèces naturalisées jugées envahissantes en méditerranée, représentant une menace potentielle pour cette flore, en réalisant des prospections au niveau de douze communes. Cela a conduit à l’identification de 64 taxons endémiques dont plus de la moitié se trouve dans la liste actualisée (38 taxons). Ces plantes appartiennent à 26 familles, 46 genres et se répartissent en 50 espèces, 11 sous-espèces et 3 variétés. Les endémiques algéro-tunisiennes sont les plus abondantes (30 taxons). 11 espèces envahissantes en méditerranée sont naturalisées dans notre région dont 5 colonisent des milieux naturels particulièrement riches en espèces endémiques. L’Acacia saligna, Carpobrotus edulis et Opuntia ficus-indica sont les principales espèces menaçantes de cette richesse biologique.
- Published
- 2020
35. Redécouverte et Écologie d´Onopordum algeriense (Munby) Pomel = Carduus algeriensis Munby, endémique stricte en voie d’extinction du secteur algérois
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Djelid, Selma Amina, Calvão, Teresa, Bensaid, Sahraoui, Djelid, Selma Amina, Calvão, Teresa, and Bensaid, Sahraoui
- Abstract
Onopordum algeriense is a strict endemic species of the Algerian sector, limited more precisely to the hills and mountains of the Puits des Zouaves (Baïnem Forest). Given its very restricted distribution its conservation is essential. It is indeed strictly protected in Algeria by Executive Decree.The objective of this paper is to assess the population size and conservation status of Onopordum algeriense according to IUCN criteria as well as its vulnerability. Exhaustive sampling by the quadrat method was carried out in two sites in the Baïnem forest.In order to study the spatial distribution of the species, the method of Thiessen Polygons and Moran Index followed by a canonical correlation analysis was applied to elucidate the relationship between the environment variables and the spatial distribution of the species. The results revealed a trend towards aggregation.The population has a reduce size (1648 feet by 320 m2). Onopordum algeriense seems to be disturbed by the presence of wild boar and probably also by the presence of a beetle (the evil ketone). The particular conditions of its natural habitat do not seem indispensable to its survival but the absence of competitors in this habitat will, no doubt, represent a strong advantage. According to the adopted IUCN criteria, the species is Critically Endangered. If there is not conservation effort the future of the species seems uncertain also because of the pressure for urbanization in this area., Onopordum algeriense est une espèce endémique stricte du secteur algérois, limitée plus précisément aux collines et montagnes du Puits des Zouaves (Forêt de Baïnem). Compte tenu de sa distribution très restreinte on comprend l´importance de sa conservation. Elle est effectivement strictement protégée en Algérie par Décret Exécutif.L’objectif de cet article consiste dans l´évaluation de la dimension de la population et du statut de conservation d’Onopordum algeriense selon les critères de l’UICN ainsi que sa vulnérabilité. Un échantillonnage exhaustif par la méthode des quadrats a été réalisé dans deux sites dans la forêt de Baïnem.Afin d´étudier la distribution spatiale de l´espèce on a appliqué la méthode des Polygones de Thiessen et l´Indice de Moran suivie d’une analyse canonique de corrélation pour élucider la relation entre les variables du milieu physique et la répartition des individus de l´espèce. Les résultats ont révélé une tendance à l’agrégation de l´espèce.La dimension de la population est réduite (on a recensé 1648 pieds sur 320 m2). Onopordum algeriense semble perturbé par la présence du sanglier et probablement aussi par la présence d´un coléoptère (la cétoine funeste). Les conditions particulières de son habitat naturel ne semblent pas indispensables à sa survie mais l’absence de compétiteurs dans cet habitat représentera, sans doute, un fort avantage.Selon les critères de l’UICN adoptées, l’espèce est en danger critique. S´il n’y a pas un effort de conservation l´ avenir de l´espèce semble incertain aussi du fait de la pression pour l’urbanisation dans cette zone.
- Published
- 2020
36. Valoració de la implantació de noves poblacions translocades de l’endemisme ibèric altament amenaçat de la flora espanyola Cistus heterophyllus subsp carthaginensis (Cistaceae
- Author
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Chenoll Garcia, Josep, Bonet Jornet, Andreu, Ferrer Gallego, Pedro Pablo, Chenoll Garcia, Josep, Bonet Jornet, Andreu, and Ferrer Gallego, Pedro Pablo
- Abstract
En aquest treball s’ha avaluat la viabilitat d’autoperpetuar-se de dues poblacions translocades de l’endemisme de la flora espanyola en perill d’extinció Cistus heterophyllus subsp. carthaginensis. Aquestes es troben localitzades als termes municipals de la Pobla de Vallbona i Bétera, a la província de València. Aquestes poblacions introduïdes persegueixen l’objectiu del projecte de conservació de l’espècie a la Comunitat Valenciana, que obliga a crear una sèrie de poblacions amb capacitat per a generar nous individus en el temps. Per a realitzar l’avaluació, s’han caracteritzat tres aspectes fonamentals de la biologia reproductiva que repercuteixen sobre la producció de fruits i llavors: el procés de floració, la interacció amb la comunitat de pol·linitzadors i la quantificació de la fructificació obtinguda; tot sobre una sèrie d’individus seleccionats aleatòriament de les dos poblacions. Els resultats de la valoració indiquen l’èxit de les translocacions, ja que s’ha aconseguit una producció notable de propàguls i s’ha observat un alt potencial de la població per a produir-ne malgrat els efectes de l’activitat antròpica. També es desprenen algunes indicacions que possiblement podrien millorar les plantacions actuals de l’espècie i les futures reintroduccions per tal de maximitzar la producció de fruits i llavors, així com la variabilitat genètica., We evaluated the viability for self-perpetuation of two translocated populations of Cistus heterophyllus subsp. carthaginensis, an endangered flower endemic to Spain, located around the towns of La Pobla de Vallbona and Bétera in the province of Valencia. These populations were introduced to further the objectives of the Valencian Community Plant Species Conservation Plan, promoting the setting up of populations with the capacity to generate new individuals over time. To conduct the evaluation three fundamental aspects of reproductive biology have been characterized on a series of randomly selected individuals from both populations and which affect the production of fruits and seeds: the flowering process, the interaction with the community of pollinators and the quantity of fructification. The results of the evaluation showed a positive trend with a remarkable level of seed production achieved together with an observed high potential of the population to produce them, all this despite the effects of anthropic activity. We include some suggestions about improvements in the species’ current plantations and on the maximising of fruit and seed production in future reintroductions, as well as genetic variability.
- Published
- 2020
37. Conservació de l’endemisme vegetal de la serra d’Irta (Castelló) Limonium irtaense
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Navarro, Albert, Laguna Lumbreras, Emilio, Pérez Rovira, Patricia, Ferrer Gallego, Pedro Pablo, Ferrando, Inmaculada, Albert, Francisco, Navarro, Albert, Laguna Lumbreras, Emilio, Pérez Rovira, Patricia, Ferrer Gallego, Pedro Pablo, Ferrando, Inmaculada, and Albert, Francisco
- Abstract
L’ensopeguera d’Irta (Limonium irtaense Ferrer et al.), és un endemisme vegetal exclusiu de la serra d’Irta (el Baix Maestrat, NE de Castelló, Espanya), descobert per a la ciència al 2011 i descrit al 2015. En aquell moment es van comptabilitzar només 19 exemplars, que fan tota la població mundial de l’ensopeguera. Atesa la minsa població i molt escassa distribució espacial de la planta, és de notable interès analitzar l’evolució de les seues poblacions. També és important conèixer l’efecte del temporal Glòria (gener 2020), donat el fort risc d’extinció d’aquesta espècie. Entre 2013 i 2020 s’han censat entre un mínim de 10 exemplars (en 2020) i un màxim de 21 (en 2016). La Glòria ha afectat greument el nombre total de peus, reduint una de les dues poblacions a només 1 exemplar. Per tal de reduir el risc d’extinció, des de 2012 s’han plantat 279 exemplars en 3 àrees pròximes, i s’han constatat els primers reclutaments de nous exemplars. L’avaluació d’aquest treball confirma la classificació de l’espècie a la categoria CR (Críticament amenaçada) de la classificació de la UICN (Unió Internacional per a la Conservació de la Natura), i reforça la necessitat de mantenir la propagació ex situ i les translocacions de conservació., Irta’s sea lavender (Limonium irtaense Ferrer et al.) is an endemic plant species exclusive to Serra d’Irta (el Baix Maestrat, NE Castelló, Spain). It was first discovered in 2011 and subsequently described in 2015. At that time, only 19 specimens were counted, making up the entire world population of this sea lavender. Given the small population and very little spatial distribution of this plant, it is of great interest to analyze the evolution of its populations. It is also important to know the effect of the storm Gloria (January 2020), given the high risk of extinction of this species. Between 2013 and 2020, a minimum of 10 exemplars (in 2020) and a maximum of 21 (in 2016) were counted. Gloria has severely affected the total number of specimens, reducing one of the two populations to just 1 specimen. In order to reduce the risk of extinction, since 2012, 279 specimens have been planted in 3 nearby areas, and the first recruitments of new specimens have been already recorded. The evaluation of this work confirms the classification of the species in the CR (Critically Endangered) category of the IUCN (International Union for Conservation of Nature) classification, and reinforces the need to maintain ex situ propagation. and conservation translocations tasks.
- Published
- 2020
38. On the recognition of a new subspecies of Andryala crithmifolia Aiton (Asteraceae) from Madeira Island (Portugal).
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Ferreira, Maria Zita, Álvarez Fernández, Inés, Jardim, Roberto, and de Sequeira, Miguel Menezes
- Subjects
ASTERACEAE ,PLANT species ,TAXONOMY - Abstract
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- Published
- 2014
39. Evaluación taxonómica de la variabilidad intraespecífica de Galium brockmannii Briq. (Rubiaceae)
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Galium ,Taxonomía ,Endemismo ,Taxonomia ,NE Península Ibèrica ,Endemisme ,NE Península Ibérica ,NE Iberian Peninsula ,Taxonomy ,Endemism - Published
- 2021
40. Systematics of the narrow endemic species Brimeura duvigneaudii (Hyacinthaceae)
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Taxonomía ,Variabilitat infraespecífica ,Infraspecific variation ,Flora amenazada ,Endemismo ,Flora amenaçada ,Endemisme ,Variabilidad infraespecífica ,Endangered flora ,Endemism ,Taxonomy - Published
- 2021
41. Efectes del temporal Glòria sobre l’estat de conservació de l’endemisme vegetal de la serra d’Irta (el Baix Maestrat) Limonium perplexum
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Pérez Rovira, Patricia, Navarro Peris, Albert, and Laguna Lumbreras, Emilio
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Valencian Community ,conservació ,demografia vegetal ,flora protegida ,conservation ,storm Gloria ,protected flora ,temporal Glòria ,biological extinction ,Comunitat Valenciana ,endemisme ,plant demography ,Limonium perplexum ,endemism ,serra d’Irta - Abstract
L’ensopeguera de Peníscola (Limonium perplexum Sáez & Rosselló) és una planta endèmica exclusiva de la serra d’Irta, catalogada En Perill d’Extinció en el Catàleg Valencià d’Espècies de Flora Amenaçades, amb només una població que ocupa menys de 40 m2 . Un segon grup de plantes de possible origen natural es va trobar en 2015. Per tal de salvar-la del risc d’extinció, des de 2005 s’han realitzat 12 translocacions de conservació (1 sembra i 11 plantacions, 9 de les quals tenien en 2019 almenys 4 anys d’edat), cosa que va incrementar notablement el seu nombre d’exemplars. L’any 2019, els censos van sumar 1.644 exemplars. Però, el temporal Glòria, registrat entre el 19 i 23 de gener de 2020, va afectar greument el seu hàbitat, ja que va eliminar els bancs de sorra que permeten la germinació de la majoria de noves plantes. El nombre d’exemplars registrat en 2020 ha disminuït en un 90,25% en les poblacions generades a partir de plantacions, i en un 75,80% en les d’origen natural. En 7 dels 10 llocs amb plantacions o sembres suficientment consolidades, el nombre de plantes censades en 2020 fou de només 0 a 5 exemplars, i és prou improbable la seua pervivència. Els efectes del temporal Glòria poden obligar a replantejar l’estratègia de conservació de l’espècie. The sea lavender of Peníscola (Limonium perplexum Sáez & Rosselló) is an exclusive, endemic plant of the Serra de Irta (province of Castelló, Spain), listed as Endangered of Extinction in the Valencian Catalogue of Endangered Plant Species and which only has one population occupying less than 40 m2 . A second population of possible natural origin was found in 2015. In order to save this species from the risk of extinction, 12 conservation translocations have been carried out since 2005 (1 sowing and 11 plantations, 9 of which were at least 4 years old in 2019), that significantly increased the number of individuals. In 2019, the censuses counted 1644 individuals. However, storm Gloria, which took place between 19 and 23 January 2020, severely affected its habitat, removing the sandbanks that allow the germination of most of the new individuals. The number of specimens registered in 2020 has decreased by 90.45% in the populations generated from plantations, and by 75.80% in those of natural origin. In 7 of the 10 places with sufficiently consolidated plantations or sowings, the number of plants registered in 2020 was only 0 to 5 specimens, making their survival quite unlikely. The effects of storm Gloria may force a rethink the conservation strategy for the species.
- Published
- 2021
42. Infertile landscapes on an old oceanic island: the biodiversity hotspot of New Caledonia
- Author
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Philippe Birnbaum, Thomas Ibanez, Robin Pouteau, Sandrine Isnard, Tanguy Jaffré, Hervé Jourdan, Bruno Fogliani, Jérôme Munzinger, Audrey Leopold, David Bruy, Jennifer Read, Yohan Pillon, Louis Lagarde, Marc Ducousso, Dominique Cluzel, Laboratoire des symbioses tropicales et méditerranéennes (UMR LSTM), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut de Recherche pour le Développement (IRD [Nouvelle-Calédonie]), Institut Agronomique Néo-Calédonien (IAC), Université de la Nouvelle-Calédonie (UNC), Institut de sciences exactes et appliquées (ISEA), University of Hawai'i [Hilo], Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UMR237-Aix Marseille Université (AMU)-Avignon Université (AU), TRajectoires d’OCéAnie (TROCA), School of Biomedical Sciences [Monash University, Clayton], Monash University [Clayton], Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Département Systèmes Biologiques (Cirad-BIOS), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)
- Subjects
0106 biological sciences ,PEDOLOGIE ,Biodiversity ,Myrmecochory ,Context (language use) ,Biology ,010603 evolutionary biology ,01 natural sciences ,PAYSAGES VEGETAUX ,New Caledonia ,Ecosystem ,14. Life underwater ,Southwest Australia ,DYNAMIQUE DE VEGETATION ,Ecology, Evolution, Behavior and Systematics ,Ecology ,BIODIVERSITE ,Biota ,Vegetation ,Dispersal ,15. Life on land ,Cyclone ,GEOLOGIE ,Biodiversity hotspot ,Metal hyperaccumulation ,Monodominance ,CLIMAT ,CYCLONE TROPICAL ,[SDE]Environmental Sciences ,METAL LOURD ,NOUVELLE CALEDONIE ,ENDEMISME ,MYCORHIZE ,Mycorrhiza ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,FEU DE BROUSSE ,010606 plant biology & botany - Abstract
The OCBIL theory comprises a set of hypotheses to comprehend the biota of old, climatically buffered, infertile landscapes (OCBILs). Here, we review evidence from the literature to evaluate the extent to which this theory could apply to the biodiversity hotspot of New Caledonia. We present geological, pedological and climatic evidence suggesting how the island might qualify as an OCBIL. The predictions of OCBIL theory are then reviewed in the context of New Caledonia. There is evidence for a high rate of micro-endemism, accumulation of relict lineages, a high incidence of dioecy, myrmecochory and nutritional specializations in plants. New Caledonian vegetation also exhibits several types of monodominant formations that reveal the importance of disturbances on the island. Fires and tropical storms are likely to be important factors that contribute to the dynamic of New Caledonian ecosystems. Although naturally infertile, there is archaeological evidence that humans developed specific horticultural practices in the ultramafic landscapes of New Caledonia. Further comparisons between New Caledonia and other areas of the world, such as South Africa and Southwest Australia, are desirable, to develop the OCBIL theory into a more robust and generalized, testable framework and to determine the most efficient strategies to preserve their outstanding biodiversity.
- Published
- 2021
43. Biodiversidad de las plantas vasculares de las Islas Baleares
- Author
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Rita, Joan and Payeras Coll, Toni
- Subjects
Endemismo ,Native flora ,Islas Baleares ,Insularitat ,Insularidad ,Flora nativa ,Forma biológica ,Insularity ,Illes Balears ,Balearic Islands ,Life form ,Forma biològica ,Endemisme ,Endemism - Abstract
Se presentan los principales descriptores cuantitativos de la flora de plantas vasculares de las Islas Baleares. La flora autóctona asciende a 1729 taxones, con una proporción de 4.7 géneros por familia y de 3 taxones por género. Cerca del 50% de los taxones se agrupan en sólo 8 familias, entre éstas las gramíneas, compuestas y leguminosas suman más del 10% de los taxones cada una de ellas. Los terófitos son la forma vital más frecuente con un 40.9% de los taxones autóctonos, los fanerófitos por el contrario son minoritarios con únicamente el 8.4% de los taxones. Más de la mitad de los taxones (52.0%) pertenecen al elemento mediterráneo, y sólo el 5.5% son taxones eurosiberianos. La flora endémica representa el 10% de la flora autóctona (173 taxones). Los caméfitos (37.7%) son las formas biológicas más frecuentes entre los endemismos, mientras que los terófitos alcanzan solo al 6.2%. Esta desarmonía se repite en otras zonas mediterráneas y podría estar relacionada con la mayor proporción de formas leñosas que caracteriza a la flora de las islas. In this paper the main quantitative descriptors of the vascular flora of the Balearic Islands are presented. The autochthonous flora has 1729 taxa, with a rate of 4.7 genus each family, and 3 taxa each genus. About 50% of the taxa belong to only eight families; but Gramineae, Compositae and Leguminosae have more than 10% of the taxa each one. Therophytes are the most common life form with the 40.9% of the autochthonous taxa, on the other hand, phanerophytes are the less common with the 8.4% of the taxa. The 52% of the taxa have a Mediterranean distribution, and a scarce 5.5% could be considered as Eurosiberiane distribution. The endemic flora represents the 10% of the autochthonous flora (173 taxa). The chamephytes (37.7%) are the most frequent life form among the endemic, and the therophytes with only the 6.2% are the less common. This disharmony can be found in other Mediterranean areas, according with the characteristic woodiness of the islands flora.
- Published
- 2021
44. Coccidial dispersion across trans- and cis-Andean antbirds (Passeriformes: Thamnophilidae): Isospora sagittulae (Apicomplexa: Eimeriidae) from nonsympatric hosts.
- Author
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Berto, B.P., Lopes, B.doB., Melinski, R.D., de Souza, A.H.N., Ribas, C.C., de Abreu, F.H.T., Ferreira, I., and Lopes, C.W.G.
- Subjects
- *
THAMNOPHILIDAE , *OOCYSTS , *APICOMPLEXA , *EIMERIIDAE , *ENDEMIC animals , *COCCIDIOSIS - Abstract
Isospora sagittulae McQuistion and Capparella, 1992 (Protozoa: Apicomplexa: Eimeriidae) is reported from White-throated Antbirds ( Gymnopithys salvini (Berlepsch, 1901)) and from Common Scale-backed Antbirds ( Willisornis poecilinotus (Cabanis, 1847)), which are thamnophilid birds from the Brazilian Amazon. Its oocysts are ovoidal to ellipsoidal, 28.4 μm × 22.4 μm, with smooth, bilayered wall, 1.1 μm. Micropyle and oocyst residuum are absent, but one to three polar granules are present. Sporocysts are subspherical to ovoidal, 15.0 μm × 12.6 μm. Stieda body thin and flattened and substieda body triangular to round. Sporocyst residuum composed of scattered granules. Sporozoites with refractile body and nucleus. This coccidium was originally described from the Spotted Antbird ( Hylophylax naevioides (Lafresnaye, 1847)), a trans-Andean antbird that is not sympatric with G. salvini and W. poecilinotus, which are cis-Andean antbirds from lowland Amazon forest; therefore, this current study presents some assumptions to explain the dispersion of I. sagittulae among antbird species. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
45. Conservació de l’endemisme vegetal de la serra d’Irta (Castelló) Limonium irtaense
- Author
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Navarro Peris, Albert, Laguna Lumbreras, Emilio, Pérez Rovira, Patricia, Ferrer-Gallego, P. Pablo, Ferrando-Pardo, Inmaculada, and Albert Llana, Francisco J.
- Subjects
Valencian Community ,conservació ,demografia vegetal ,flora protegida ,conservation ,storm Gloria ,protected flora ,temporal Glòria ,Comunitat Valenciana ,UICN ,Limonium irtaense ,endemisme ,plant demography ,endemism ,serra d’Irta - Abstract
L’ensopeguera d’Irta (Limonium irtaense Ferrer et al.), és un endemisme vegetal exclusiu de la serra d’Irta (el Baix Maestrat, NE de Castelló, Espanya), descobert per a la ciència al 2011 i descrit al 2015. En aquell moment es van comptabilitzar només 19 exemplars, que fan tota la població mundial de l’ensopeguera. Atesa la minsa població i molt escassa distribució espacial de la planta, és de notable interès analitzar l’evolució de les seues poblacions. També és important conèixer l’efecte del temporal Glòria (gener 2020), donat el fort risc d’extinció d’aquesta espècie. Entre 2013 i 2020 s’han censat entre un mínim de 10 exemplars (en 2020) i un màxim de 21 (en 2016). La Glòria ha afectat greument el nombre total de peus, reduint una de les dues poblacions a només 1 exemplar. Per tal de reduir el risc d’extinció, des de 2012 s’han plantat 279 exemplars en 3 àrees pròximes, i s’han constatat els primers reclutaments de nous exemplars. L’avaluació d’aquest treball confirma la classificació de l’espècie a la categoria CR (Críticament amenaçada) de la classificació de la UICN (Unió Internacional per a la Conservació de la Natura), i reforça la necessitat de mantenir la propagació ex situ i les translocacions de conservació. Irta’s sea lavender (Limonium irtaense Ferrer et al.) is an endemic plant species exclusive to Serra d’Irta (el Baix Maestrat, NE Castelló, Spain). It was first discovered in 2011 and subsequently described in 2015. At that time, only 19 specimens were counted, making up the entire world population of this sea lavender. Given the small population and very little spatial distribution of this plant, it is of great interest to analyze the evolution of its populations. It is also important to know the effect of the storm Gloria (January 2020), given the high risk of extinction of this species. Between 2013 and 2020, a minimum of 10 exemplars (in 2020) and a maximum of 21 (in 2016) were counted. Gloria has severely affected the total number of specimens, reducing one of the two populations to just 1 specimen. In order to reduce the risk of extinction, since 2012, 279 specimens have been planted in 3 nearby areas, and the first recruitments of new specimens have been already recorded. The evaluation of this work confirms the classification of the species in the CR (Critically Endangered) category of the IUCN (International Union for Conservation of Nature) classification, and reinforces the need to maintain ex situ propagation. and conservation translocations tasks.
- Published
- 2020
46. DIpositif de Suivi des Changements socio-écologiques à la Réserve naturelle nationale de la Caravelle (DiSC)
- Author
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Gros-Désormeaux, Jean-Raphaël, SON, Steven, Lesales, Thierry, Tupiassu, Lise, Louis-Jean, Laurent, Laboratoire caribéen de sciences sociales (LC2S), Université des Antilles (UA)-Centre National de la Recherche Scientifique (CNRS), Convention de collaboration de recherche, Centre national de la recherche scientifique, Parc naturel régional de la Martinique, Université des Antilles, CIHENCE Sarl, UFPA, and CESUPA
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changement ,biologie ,[SHS.ENVIR]Humanities and Social Sciences/Environmental studies ,socioécologie ,conservation ,Endémisme ,[SHS.GEO]Humanities and Social Sciences/Geography ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,écologie - Abstract
Dans le cadre de son plan de gestion 2014-2018 de la Réserve naturelle nationale de la presqu’île de la Caravelle (RNNC), le syndicat mixte du Parc naturel Régional de la Martinique (PNRM) s’est fixé pour objectif de maintenir les populations d’oiseaux endémiques et remarquables qui fréquentent ce site. Les actions de conservation du Moqueur gorge-blanche (Ramphocinclus brachyurus brachyurus) et de son habitat sont déclinées en trois objectifs opérationnels : la connaissance des populations, la réduction du dérangement et la restauration des espaces d’alimentation. L’équipe BEST du LC2S et la Direction de la biodiversité et de l’aménagement durable du territoire (DBADT) du PNRM collaborent à la mise en oeuvre de dispositifs scientifiques fiables, efficients, efficaces, reproductibles et pérennes qui permettent de fournir des données sur les variations inter et intra annuelles de l’état de la végétation, des usages et du Moqueur gorge-blanche (R. brachyurus) dans la RNNC et ses alentours. Ces dispositifs se veulent à la frontière des attentes du gestionnaire, des sciences académiques et des sciences participatives, et ainsi en congruence avec le concept de « forum hybride » dans lequel des mondes aux préoccupations aussi différentes que complémentaires se rencontrent et se fécondent mutuellement en vue de produire de véritables changements de paradigmes. Pour répondre à cette ambition, le contrat de collaboration de recherche a produit des méthodes de suivi des variations inter et intra annuelle des changements socio-écologiques mis en oeuvre pour l’étude et le suivi de trois objets au regard des enjeux de conservation du Moqueur gorge-blanche (R. brachyurus) : la végétation, les usages et les populations.
- Published
- 2020
47. Bats (Chiroptera) from the Albertine Rift, eastern Democratic Republic of Congo, with the description of two new species of the Rhinolophus maclaudi group.
- Author
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Kerbis Peterhans, Julian C., Fahr, Jakob, Huhndorf, Michael H., Kaleme, Prince, Plumptre, Andrew J., Marks, Ben D., and Kizungu, Robert
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HORSESHOE bats ,BAT classification ,ANIMAL species ,MAMMALS - Abstract
The article focuses on a study which revised the horseshoe bats of the Rhinolophus maclaudi species group. Members of the group are located in the mountainous region of West Africa and the Albertine Rift, east of the Congo River with a major gap between the two recognized sub-groups. Two additional species within this species group were described from the Albertine Rift center of endemism in the eastern Democratic Republic of Congo.
- Published
- 2013
48. La diversité biologique insulaire à l’épreuve de la faune exotique envahissante
- Author
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Jean-Michel Lebigre
- Subjects
marronage ,unicolonialité ,wildlife ,biogéographie ,temps court ,milieux insulaires ,species eradication ,island environments ,biodiversité ,faune ,espèce exotique envahissante ,unicoloniality ,éradication d’espèce ,biogeography ,biodiversity ,true islands ,short time ,invasive alien species ,extinction d’espèces ,îles « varies » ,marronnage ,extinction of species ,Geography ,endemism ,endémisme ,Humanities - Abstract
La plupart des îles de formation ancienne éloignées des continents ont la particularité de recéler une biodiversité exceptionnelle mais a priori vulnérable, à l’échelle des écosystèmes comme à celle des espèces. De ce point de vue, il est plus aisé de mettre l’accent sur les îles « vraies » que d’opposer des petites et des grandes îles. Les milieux insulaires sont depuis les premières vagues de peuplement humain mis à l’épreuve par l’introduction de nombreuses espèces exotiques animales et végétales. C’est aux premières que nous nous intéressons. La coexistence des espèces natives et des espèces allochtones donne lieu à de multiples scénarios. Les impacts de ces espèces animales se font sentir aussi bien sur les activités humaines que dans le fonctionnement des écosystèmes et sur les paysages. Si le phénomène à une échelle de temps long a été à l’origine de spéciations (cas célèbre des pinsons de Darwin), il est surtout la cause d’une perte rapide de biodiversité. Comme dans tous les milieux insulaires, il est important aujourd’hui de savoir comment gérer efficacement les impacts de la faune invasive. Plusieurs organismes s’y emploient. Most ancient and far from continent islands have the particularity of having an exceptional but a priori vulnerable biodiversity, on the scale of ecosystems as of species. From this point of view, it is easier to focus on "real" islands than opposing small and large islands. From the former waves of human settlement, island environments are disrupted by the introduction of many exotic animal and plant species. The coexistence of native and allochtone animal species gives rise to a multitude of scenarii. The impact of the introduction of new species are felt both on human activities and on the functionning of ecosystems and of landscapes. If the long time scale phenomenon has been the cause of speciation (famous case of Darwin’s Finches), it mostly results in a sharp decline in biodiversity. Like in all island environments, it is urgent today to know how ti manage effectively impacts of invasive fauna. Several organizations are doing so.
- Published
- 2019
49. New data on the origin of Nesiotites (Soricidae, Mammalia) in Menorca (Balearic Islands, Spain)
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Pons-Monjo, Guillem, Moyà-Solà, Salvador, and Furió, Marc
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FOSSIL mammals , *DATA analysis , *BIOMETRY , *FOSSIL shrews , *ANIMAL morphology - Abstract
Abstract: The presence of the shrew Nesiotites in Menorca is not yet adequately explained. Some authors consider that its ancestor arrived during the Messinian Salinity Crisis, as happened in Mallorca. Other authors consider that fossil populations in Menorca are the result of a later migration from Mallorca. In this work, several biometrical and morphological characters of abundant fossil populations from both islands have been studied. The results indicate that Early Pleistocene populations in Mallorca and Menorca are rather indistinguishable. Therefore, an early post-Messinian (Pliocene) isolation of Nesiotites in both islands is quite unlikely. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
50. Checklist of the liverworts and hornworts of New Caledonia.
- Author
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Thouvenot, Louis, Gradstein, S. Robert, Hagborg, Anders, Söderström, Lars, and Bardat, Jacques
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LIVERWORTS , *HORNWORTS (Bryophytes) , *LEPIDOZIACEAE , *BRYOPHYTES - Abstract
The present checklist of the liverworts and hornworts of New Caledonia is a sequel to the recent catalogue of the mosses and accepts 464 species and 18 infraspecific taxa, in 104 genera and 39 families. In addition, 32 species are doubtful records of New Caledonia and 52 species are excluded. The hepatic flora of New Caledonia is more similar to that of Indomalesia than of Australasia, which may be explained by the predominantly tropical climate of New Caledonia. The composition of the flora is considered the result of a long history of dispersal and speciation events since 37 Ma. Endemism of liverworts and hornworts of New Caledonia is between 13% (confirmed endemics, treated in recent revision or monographs) and 39% (confirmed and potential endemics). The latter figure is the same as for mosses. One genus of liverworts, Meinungeria (Lepidoziaceae), is endemic to New Caledonia. Cheilolejeunea xanthocarpa, Mastigolejeunea indica and Microlejeunea lunulatiloba are reported as new to New Caledonia. The new name Cololejeunea aurantia (Tixier) Thouvenot comb. nov. (for Jovetastella aurantia Tixier) is proposed. Mastigobryum integristipulum Steph. ex Paris and Mastigobryum luxurians Steph. ex Paris are new synonyms of Bazzania vittata (Gottsche) Trevis., Chiloscyphus longifissus Steph. ex Paris is reduced to a synonym of Heteroscyphus grandiflorus (Steph.) Hürl, and Eulejeunea aloba Steph. ex Paris is referred to Lejeunea alobifolia H.A. Mill. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
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