112 results on '"Gibernau M"'
Search Results
2. Ant Protection of a Heteropteran Trophobiont against a Parasitoid Wasp
- Author
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Gibernau, M. and Dejean, A.
- Published
- 2001
3. Corner's Rules Revisited: Ontogenetic and Interspecific Patterns in Leaf-Stem Allometry
- Author
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Brouat, C., Gibernau, M., Amsellem, L., and McKey, D.
- Published
- 1998
4. Pollen-ovule ratios in some Neotropical Araceae and their putative significance
- Author
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Chouteau, M., Barabé, D., and Gibernau, M.
- Published
- 2006
5. Coccinellid Learning During Capture of Alternative Prey
- Author
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Dejean, A., Gibernau, M., Lauga, J., and Orivel, J.
- Published
- 2003
- Full Text
- View/download PDF
6. Mammal diversity and environment evolution during the Plio-Pleistocene in East Africa
- Author
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Gibernau, M. and Montuire, S.
- Published
- 1996
- Full Text
- View/download PDF
7. Specialized predation on plataspid heteropterans in a coccinellid beetle: adaptive behavior and responses of prey attended or not by ants
- Author
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Dejean, A., Orivel, J., and Gibernau, M.
- Published
- 2002
8. Chemical diversity of essential oil of the Moroccan endemic Origanum grosii in natural populations and after transplantation
- Author
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Bakha, M., primary, Gibernau, M., additional, Tomi, F., additional, Machon, N., additional, Khiraoui, A., additional, Aboukhalid, K., additional, El Mtili, N., additional, and Al Faiz, C., additional
- Published
- 2019
- Full Text
- View/download PDF
9. Diversity of pollination ecology in theSchismatoglottisCalyptrata Complex Clade (Araceae)
- Author
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Hoe, Y. C., primary, Gibernau, M., additional, and Wong, S. Y., additional
- Published
- 2018
- Full Text
- View/download PDF
10. Aracées de Guyane française : biologie et systématique
- Author
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Barabé, G. and Gibernau, M.
- Subjects
FOURMI ,POLLINISATION ,MORPHOLOGIE ,DEVELOPPEMENT BIOLOGIQUE ,PHYSIOLOGIE VEGETALE ,PLANTE ,MODELE ,MULTIPLICATION VEGETATIVE ,CROISSANCE ,PHYLOGENIE ,BOTANIQUE ,PARASITE ,DISTRIBUTION SPATIALE ,TEMPERATURE ,FLEUR ,FORMATION VEGETALE ,NOM SCIENTIFIQUE ,ANIMAL ,ANATOMIE VEGETALE ,FLORAISON ,EVOLUTION ,ETHNOBOTANIQUE ,NOM VERNACULAIRE ,INSECTE ,THERMOGENESE ,PHYTOGEOGRAPHIE ,INFLORESCENCE ,FAMILLE TAXONOMIQUE ,REPRODUCTION SEXUEE ,ECOLOGIE ,FLORE - Abstract
La famille des Aracées comprend 118 genres et 3 800 espèces de plantes tropicales. Elle représente la 13e famille la plus riche au monde et la 3e parmi les Monocotylédones après les Orchidacées et les Poacées. Le présent ouvrage est consacré aux Aracées de Guyane française, où la famille est largement représentée avec 21 genres et 122 espèces, dont un grand nombre d'échantillons sont déposés à l'Herbier de Guyane. L'originalité des Aracées réside dans leur morphologie florale variée (fleurs fertiles bi- ou unisexuées, fleurs stériles), leur mode de croissance (plantes aquatiques, géophytes, grimpantes et épiphytes), leur mode de pollinisation et leur physiologie inhabituelle. En effet, la température de l'inflorescence est susceptible d'augmenter fortement lors de la pollinisation, créant ainsi des conditions favorables pour les activités des coléoptères nocturnes pollinisateurs. Plusieurs chapitres portent sur la biologie et l'écologie des Aracées : les modes de croissance, la morphologie florale, la thermogenèse, la pollinisation et les relations avec les animaux non pollinisateurs. Les usages ethnobotaniques sont décrits dans un chapitre distinct. La dernière partie consacrée à la systématique donne des clés d'identification pour les genres et les espèces de Guyane ainsi qu'une courte description de chaque espèce. L'ouvrage s'adresse aussi bien aux chercheurs qu'aux enseignants et aux étudiants, ainsi qu'aux amateurs désireux d'en apprendre davantage sur cette famille de plantes à la fois spectaculaire et originale.
- Published
- 2015
11. Flowering mechanisms, pollination strategies and floral scent analyses of syntopically co-floweringHomalomenaspp. (Araceae) on Borneo
- Author
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Hoe, Y. C., primary, Gibernau, M., additional, Maia, A. C. D., additional, and Wong, S. Y., additional
- Published
- 2016
- Full Text
- View/download PDF
12. Diversity of pollination ecology in the <italic>Schismatoglottis</italic> Calyptrata Complex Clade (Araceae).
- Author
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Hoe, Y. C., Gibernau, M., and Wong, S. Y.
- Subjects
- *
FLIES , *POLLINATION , *POLLEN , *BODY temperature regulation , *ANGIOSPERMS - Abstract
Abstract: Field studies integrating pollination investigations with an assessment of floral scent composition and thermogenesis in tropical aroids are rather few. Thus, this study aimed to investigate the pollination biology of nine species belonging to
Schismatoglottis Calyptrata Complex Clade. The flowering mechanism, visiting insect activities, reproductive system, thermogenesis and floral scent composition were examined. Anthesis for all species started at dawn and lasted 25–29 h.Colocasiomyia (Diptera, Drosophilidae) are considered the main pollinators for all the investigated species.Cycreon (Coleoptera, Hydrophilidae) are considered secondary pollinators as they are only present in seven of the nine host plants, despite the fact that they are the most effective pollen carrier, carrying up to 15 times more pollen grains thanColocasiomyia flies. However, the number ofColocasiomyia individuals was six times higher thanCycreon beetles.Chaloenus (Chrysomelidae, Galeuricinae) appeared to be an inadvertent pollinator.Atheta (Coleoptera, Staphylinidae) is considered a floral visitor in most investigated species of the Calyptrata Complex Clade in Sarawak, but a possible pollinator inS. muluensis . Chironomidae midges and pteromalid wasps are considered visitors inS. calyptrata . Thermogenesis in a biphasic pattern was observed in inflorescences ofS. adducta, S. calyptrata, S. giamensis, S. pseudoniahensis andS. roh . The first peak occurred during pistillate anthesis; the second peak during staminate anthesis. Inflorescences of all investigated species of Calyptrata Complex Clade emitted four types of ester compound, with methyl ester‐3‐methyl‐3‐butenoic acid as a single major VOC (volatile organic compound). The appendix, pistillate zone, staminate zone and spathe emitted all these compounds. A mixed fly–beetle pollination system is considered an ancestral trait in the Calyptrata Complex Clade, persisting in Sarawak taxa, whereas the marked reduction of interpistillar staminodes in taxa from Peninsular Malaysia and especially, Ambon, Indonesia, is probably linked to a shift in these taxa to a fly‐pollinated system. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
13. Ovarian dynamics ans specialisation in ladybirds
- Author
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Ferrer, A., Dixon, A.F., Gibernau, M., Hemptinne, Jean-Louis, Evolution et Diversité Biologique (EDB), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées
- Subjects
ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2010
14. Pollination ecology and reproductive success in Jack-in-the Pulpit (Arisaema triphyllum) in Quebec (Canada)
- Author
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Barriault, I., Barabé, D., Cloutier, L., Gibernau, M., Evolution et Diversité Biologique (EDB), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Jardin botanique de Montréal, Département des Sciences Biologiques [Montréal], Université du Québec à Montréal (UQAM), Ecologie des forêts de Guyane (ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université des Antilles et de la Guyane (UAG)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), and Université du Québec à Montréal = University of Québec in Montréal (UQAM)
- Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences ,THYSANOPTERA ,VISITATION RATES ,BISEXUAL INFLORESCENCE ,POLLEN LOAD ,ARACEAE ,fungi ,food and beverages ,DECEPTIVE POLLINATION ,MYCETOPHILIDAE ,ECOLOGIE ,ComputingMilieux_MISCELLANEOUS - Abstract
Pollination ecology and reproductive success of Jack-in-the-pulpit (Arisaema triphyllum) were studied in two natural populations in Québec, Canada. Individual A. triphyllum plants can be of three types: male, female or bisexual. In both populations studied, the presence of bisexual inflorescences was not negligible (13%), where 'female' and 'male' bisexual plants were categorised according to the relative number of stamens and ovaries. 'Male bisexual' plants produce only pollen and 'female bisexual' plants produce only fruit. Hence, A. triphyllum is a true dioecious plant, as each plant only reproduces through either the male or the female function. 'Female bisexual' plants were equivalent to female plants in terms of visitation rate by insects, fructification rate and production of berries and seeds. Neither agamospermy in female plants nor self-pollination in 'female bisexual' plants was found, thus A. triphyllum relies on insects for cross-pollination. Despite the long flowering cycle, a low visitation rate was documented: only 20-40% of inflorescences were visited, according to gender, by a mean of 1.5 insects. In this study, Mycetophilidae represented the most generically diversified and abundant family, as well as the most efficient insect pollinator, especially the genera Docosia and Mycetophila.
- Published
- 2010
15. Évolution des interactions entre espèces
- Author
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Thierry Lefèvre, François Renaud, Marc-André Selosse, Frédéric Thomas, Bernstein, C., Broennimann, O., Charlat, S., Mazancourt, C., Meeüs, T., Frédéric Fleury, Herve Fritz, Sylvain Gandon, Jean-Michel Gaillard, Gibernau, M., Hautier, Y., Hurthrez-Broussès, S., Lecomte, N., Loison, A., Anders Pape Møller, Morand, S., Yannick Outreman, Pearman, P. B., Poulin, R., Randin, C., Thierry Rigaud, Salvaudon, L., Gabriele Sorci, Théron, A., Vavre, F., Wajnberg, E., Shykoff, J., Génétique et évolution des maladies infectieuses (GEMI), Université Montpellier 1 (UM1)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Evolution, adaptation et comportement, Département écologie évolutive [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Department of Ecology and Evolution, Université de Lausanne = University of Lausanne (UNIL), Génétique et évolution des interactions hôtes-parasites, Département génétique, interactions et évolution des génomes [LBBE] (GINSENG), Redpath Museum, McGill University = Université McGill [Montréal, Canada], Ecologie quantitative et évolutive des communautés, Biodémographie évolutive, Evolution et Diversité Biologique (EDB), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Environnementales, Universität Zürich [Zürich] = University of Zurich (UZH), Department of Arctic and Marine Biology, University of Tromsø (UiT), Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Parasitologie évolutive (PE), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), Biologie des organismes et des populations appliquées à la protection des plantes (BIO3P), Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST, Swiss Federal Institute WSL, Department of Zoology, University of Otago [Dunedin, Nouvelle-Zélande], Institut Botanique, Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Ecologie Systématique et Evolution (ESE), Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Biologie et écologie tropicale et méditerranéenne [2007-2010] (BETM), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interactions Biotiques et Santé Végétale (IBSV), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), F. Thomas, T. Lefèvre & M. Raymond, Centre National de la Recherche Scientifique (CNRS)-Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD [France-Sud]), Université Paul-Valéry - Montpellier 3 (UM3)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Université de Lausanne (UNIL), McGill University, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Universität Zürich [Zürich] (UZH), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Biologie et écologie tropicale et méditerranéenne (BETM), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Génétique et évolution des maladies infectieuses ( GEMI ), Centre National de la Recherche Scientifique ( CNRS ), Centre d’Ecologie Fonctionnelle et Evolutive ( CEFE ), Université Paul-Valéry - Montpellier 3 ( UM3 ) -Centre international d'études supérieures en sciences agronomiques ( Montpellier SupAgro ) -École pratique des hautes études ( EPHE ) -Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD [France-Sud] ) -Institut national d’études supérieures agronomiques de Montpellier ( Montpellier SupAgro ), Laboratoire de Biométrie et Biologie Evolutive ( LBBE ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique ( Inria ) -Centre National de la Recherche Scientifique ( CNRS ), University of Lausanne, Evolution et Diversité Biologique ( EDB ), Institut de Recherche pour le Développement ( IRD ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Zürich, University of Tromsø ( UiT ), Laboratoire d'Ecologie Alpine ( LECA ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Université Savoie Mont Blanc ( USMB [Université de Savoie] [Université de Chambéry] ) -Centre National de la Recherche Scientifique ( CNRS ), Parasitologie évolutive ( PE ), École normale supérieure - Paris ( ENS Paris ) -Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Centre National de la Recherche Scientifique ( CNRS ), Institut des Sciences de l'Evolution de Montpellier ( ISEM ), Université de Montpellier ( UM ) -Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique ( CNRS ), Biologie des organismes et des populations appliquées à la protection des plantes ( BIO3P ), Institut National de la Recherche Agronomique ( INRA ) -Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -AGROCAMPUS OUEST, University of Otago, Université de Bâle, Biogéosciences [Dijon] ( BGS ), AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Ecologie Systématique et Evolution ( ESE ), Université Paris-Sud - Paris 11 ( UP11 ) -AgroParisTech-Centre National de la Recherche Scientifique ( CNRS ), Biologie et écologie tropicale et méditerranéenne ( BETM ), Université de Perpignan Via Domitia ( UPVD ) -École pratique des hautes études ( EPHE ) -Centre National de la Recherche Scientifique ( CNRS ), Interactions Biotiques et Santé Végétale ( IBSV ), Institut National de la Recherche Agronomique ( INRA ) -Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-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 de Recherche pour le Développement (IRD [France-Sud]), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), École normale supérieure - Paris (ENS Paris), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), 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), Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE), AGROCAMPUS OUEST, 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)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Recherche Agronomique (INRA), Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Perpignan Via Domitia (UPVD)
- Subjects
[ SDV.BID.EVO ] Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] ,[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] ,[ SDV.EE.IEO ] Life Sciences [q-bio]/Ecology, environment/Symbiosis ,[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis - Abstract
84 pages
- Published
- 2010
16. Ants as biological indicators of Wayana Amerindians land use in French Guiana
- Author
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Delabie, J.H.C., Céréghino, R., Groc, S., Déjean, An., Gibernau, M., Corbara, B., Déjean, A., Laboratorio de Mirmecologia (UPA), Convenio UESC/CEPLAC, Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Evolution et Diversité Biologique (EDB), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Laboratoire Microorganismes : Génome et Environnement (LMGE), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS)-Université d'Auvergne - Clermont-Ferrand I (UdA), UPS 2561 GUYANE, and Centre National de la Recherche Scientifique (CNRS)
- Subjects
ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2009
17. Diversity and nest site selection of social wasps along Guianese forest edges : assessing the influence of arboreal ants
- Author
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Corbara, B., Carpenter, J. M., Céréghino, R., Gibernau, M., Leponce, M., Orivel, Jérôme, Déjean, A., Laboratoire Microorganismes : Génome et Environnement (LMGE), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université d'Auvergne - Clermont-Ferrand I (UdA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Evolution et Diversité Biologique (EDB), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), UPS CNRS Guyane (UCG), Centre National de la Recherche Scientifique (CNRS), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS)-Université d'Auvergne - Clermont-Ferrand I (UdA), Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, and UPS 2561 GUYANE
- Subjects
ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2009
18. Evolutionary responses of discontinuous gas exchange in insects
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White, C.R., Blackburn, T.M., Terblanche, J.S., Marais, E., Gibernau, M., Chown, S.L., Evolution et Diversité Biologique (EDB), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,[SDV.BA]Life Sciences [q-bio]/Animal biology ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,[SDV.BID]Life Sciences [q-bio]/Biodiversity - Published
- 2007
19. Are myrmecophytes always better protected against herbivores than other plants ?
- Author
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Dejean, A., J. H. C., Delabie, Cerdan, P., Gibernau, M., Corbara, B., Laboratoire de psychologie sociale et de psychologie cognitive (LAPSCO), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS), and Veyssiere, Delphine
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[SCCO.PSYC] Cognitive science/Psychology ,[SCCO.PSYC]Cognitive science/Psychology - Published
- 2006
20. Floral development and phylogenetic position of Schismatoglottis (Araceae)
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Barabé, D., Lacroix, C., Anne Bruneau, Archambault, A., Gibernau, M., Lugrezi, Cathy, Université de Montréal (UdeM), University of Prince Edward Island, Sciences pour l'environnement (SPE), Centre National de la Recherche Scientifique (CNRS)-Université Pascal Paoli (UPP), and supported in part by grants from the Natural Sciences and Engineering Research Council of Canada to Anne Bruneau (183703-00), Denis Barabe´ (41794-02), and Christian Lacroix (41794-02).
- Subjects
[SDV.BA] Life Sciences [q-bio]/Animal biology ,[SDV]Life Sciences [q-bio] ,[SDV.BA]Life Sciences [q-bio]/Animal biology ,fungi ,food and beverages ,morphogenesis ,[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics ,floral development ,[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics ,[SDV] Life Sciences [q-bio] ,Schismatoglottis ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,Araceae ,[SDV.BV] Life Sciences [q-bio]/Vegetal Biology ,systematics ,molecular phylogeny - Abstract
Int. J. Plant Sci. 165(1):173–189. 2004. University of Chicago. all rights reserved. 1058-5893/2004/16501-0012$15.00; International audience; In the inflorescence of Schismatoglottis, atypical sterile flowers are present between the male and female zones. Contrary to what occurs in Cercestis and Philodendron, where the atypical flowers are bisexual, in Schismatoglottis the atypical flowers consist of aberrant male or female flowers. These atypical unisexual flowers have different forms depending on their position in the inflorescence. The atypical flowers located near the male zone share characteristics with staminate flowers, and those located near the female zone have features in common with pistillate flowers. The developmental pathway of atypical flowers in Schismatoglottis is already channeled in the direction of female or male flowers before the appearance of aberrant appendages. Interpistillar sterile structures located in the female zone correspond to modified female flowers. The systematic position of Schismatoglottis is not fully resolved on a molecular phylogenetic analysis of 45 genera of Araceae, on the basis of chloroplast trnL intron and trnL-F intergenic spacer sequences. The floral ontogenetic pattern in Schismatoglottis represents a different pathway in the evolution of unisexual flowers in the subfamily Aroideae.
- Published
- 2004
21. Flowering mechanisms, pollination strategies and floral scent analyses of syntopically co-flowering Homalomena spp. (Araceae) on Borneo.
- Author
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Hoe, Y. C., Gibernau, M., Maia, A. C. D., Wong, S. Y., and Dafni, A.
- Subjects
- *
PHANEROGAMS , *ARACEAE , *POLLINATION , *FLOWERS - Abstract
In this study, the flowering mechanisms and pollination strategies of seven species of the highly diverse genus Homalomena (Araceae) were investigated in native populations of West Sarawak, Borneo. The floral scent compositions were also recorded for six of these species. The selected taxa belong to three out of four complexes of the section Cyrtocladon (Hanneae, Giamensis and Borneensis). The species belonging to the Hanneae complex exhibited longer anthesis (53-62 h) than those of the Giamensis and Borneensis complexes ( ca. 30 h). Species belonging to the Hanneae complex underwent two floral scent emission events in consecutive days, during the pistillate and staminate phases of anthesis. In species belonging to the Giamensis and Borneensis complexes, floral scent emission was only evident to the human nose during the pistillate phase. A total of 33 volatile organic compounds ( VOCs) were detected in floral scent analyses of species belonging to the Hanneae complex, whereas 26 VOCs were found in samples of those belonging to the Giamensis complex. The floral scent blends contained uncommon compounds in high concentration, which could ensure pollinator discrimination. Our observations indicate that scarab beetles ( Parastasia gestroi and P. nigripennis; Scarabaeidae, Rutelinae) are the pollinators of the investigated species of Homalomena, with Chaloenus schawalleri (Chrysomelidae, Galeuricinae) acting as a secondary pollinator. The pollinators utilise the inflorescence for food, mating opportunities and safe mating arena as rewards. Flower-breeding flies ( Colocasiomyia nigricauda and C. aff. heterodonta; Diptera, Drosophilidae) and terrestrial hydrophilid beetles ( Cycreon sp.; Coleoptera, Hydrophilidae) were also frequently recovered from inflorescences belonging to all studied species (except H. velutipedunculata), but they probably do not act as efficient pollinators. Future studies should investigate the post-mating isolating barriers among syntopically co-flowering Homalomena sharing the same visiting insects. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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22. Distribution of calcium oxalate crystals in floral organs of Araceae in relation to pollination strategy
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Cote, G. G., primary and Gibernau, M., additional
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- 2012
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23. When Figs Wait for Pollinators: The Length of Fig Receptivity
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Khadari, B., Gibernau, M., Marie Charlotte Anstett, Kjellberg, F., Hossaert-Mckey, M., Sciences pour l'environnement (SPE), Université Pascal Paoli (UPP)-Centre National de la Recherche Scientifique (CNRS), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UM3)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Centre National de la Recherche Scientifique (CNRS)-Université Pascal Paoli (UPP), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and 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 de Recherche pour le Développement (IRD [France-Sud])
- Subjects
[SDV]Life Sciences [q-bio] ,[SDV.BA]Life Sciences [q-bio]/Animal biology ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics - Abstract
International audience; In plant species with an obligate species-specific pollinator, gamete encounter is a critical phase in the success of reproductive strategies. One of the key factors in the success of gamete encounter, the length of female receptivity, has been rarely studied experimentally. In Ficus species (Moraceae), each exclusively associated with its specific pollinating wasp, the receptive female phase of individual syconia was believed to last only a few days. This estimate, based on field observations of pollinator arrivals, neglected the possibility that unpollinated syconia may remain receptive for a prolonged period. In two distantly related fig species (F. carica and F. aurea), we measured experimentally the duration of receptivity of individual syconia protected from pollinator visits. For these two species, receptivity lasted from 2 to 3 wk. Syconia pollinated at any time during this period of receptivity are capable of setting seeds. Furthermore, it has been assumed that female syconium receptivity stops quickly after pollinator visitation. Our experiments showed that syconia of both species are able to extend their receptive period for a few days longer when visited only by a single wasp. The demonstration of a long duration of female receptivity has important consequences for understanding the maintenance of the fig-wasp mutualism.
- Published
- 1995
24. Diversity and nest site selection of social wasps along Guianese forest edges: assessing the influence of arboreal ants
- Author
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Corbara, Bruno, primary, Carpenter, J.M., additional, Céréghino, R., additional, Leponce, M., additional, Gibernau, M., additional, and Dejean, Alain, additional
- Published
- 2009
- Full Text
- View/download PDF
25. An asymmetrical relationship between an arboreal ponerine ant and a trash-basket epiphyte (Araceae)
- Author
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GIBERNAU, M., primary, ORIVEL, J., additional, DELABIE, J. H. C., additional, BARABÉ, D., additional, and DEJEAN, A., additional
- Published
- 2007
- Full Text
- View/download PDF
26. Flowering and Pollination of Philodendron melinonii (Araceae) in French Guiana
- Author
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Gibernau, M., primary, Barabé, D., additional, and Labat, D., additional
- Published
- 2000
- Full Text
- View/download PDF
27. Chemosensory attraction of fig wasps to substances produced by receptive figs
- Author
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Hossaert‐McKey, M., primary, Gibernau, M., additional, and Frey, J. E., additional
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- 1994
- Full Text
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28. Zonal thermogenetic dynamics of two species of Philodendron from two different subgenera (Araceae)
- Author
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BARABÉ, D., Gibernau, M., and Forest, F.
- Published
- 2002
- Full Text
- View/download PDF
29. Flowering and Pollination of Philodendron melinonii(Araceae) in French Guiana
- Author
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Gibernau, M., Barabé, D., and Labat, D.
- Abstract
Abstract: The pollination ecology of Philodendron melinoniiwas studied at two locations in French Guiana. Inflorescences of P. melinoniiwere regularly visited by Cyclocephala colasi,a scarab beetle also found in inflorescences of P. solimoesensein the same area. The flowering cycle lasted two days and the inflorescence exhibited features typical for beetle pollination (e.g., floral chamber, food rewards, flower heating). The flowering process is well synchronized with the night activity of Cyclocephalavisitors. The spadix temperature was measured during the entire flowering cycle in the field in French Guiana and in greenhouse conditions at the Montreal Botanical Garden. Both measurements gave a similar temperature pattern with a two hour delay at the Botanical Garden. The spadix warmed up twice during the flowering period and its temperature was not significantly different from that of ambient air between the two peaks. These two temperature peaks are also well synchronized with the arrival and departure of the beetles on two consecutive nights.
- Published
- 2000
- Full Text
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30. A new case of trophobiosis between ants and Heteroptera
- Author
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Dejean, A., Gibernau, M., and Bourgoin, T.
- Published
- 2000
- Full Text
- View/download PDF
31. Volatile compounds from extracts of figs of ficus carica
- Author
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Gibernau, M., Buser, H. R., Frey, J. E., and Hossaert-McKey, M.
- Published
- 1997
- Full Text
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32. The predatory behavior of the dominant arboreal ant species Tetramorium aculeatum (Hymenoptera: Formicidae)
- Author
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Djiéto-Lordon, C., Freddie-Jeanne Richard, Owona, C., Gibernau, M., Orivel, J., and Dejean, A.
33. Interference between ant species distribution in different habitats and the density of a maize pest
- Author
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Alain Dejean, Orivel, J., Durand, J. L., Ngnegueu, P. R., Bourgoin, T., and Gibernau, M.
34. Pioneer plant protection against herbivory: Impact of different ant species (Hymenoptera: Formicidae) on a proliferation of the variegated locust
- Author
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Dejean, A., Gibernau, M., Durand, J. L., Abehassera, D., and Jerome Orivel
35. Potential of wild populations resources of arum maculatum L. (araceae) in Bulgaria – A prospective medicinal plant
- Author
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Kozuharova, E., Kochmarov, V., Ivanka Semerdjieva, Mincheva, I., and Gibernau, M.
36. Guia d'actuació en pacients fumadors ingressats en unitats de salut mental
- Author
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Ballbè, Montse, Cano-Vega, Margarita, Contel-Guillamon, Montserrat, Feria-Raposo, Isabel, Hernández-Ribas, Rosa, Pagerols-Hernàndez, Jordi, Sanz-Osorio, Maria T., [Ballbè-Gibernau M] Hospital Clínic i Provincial de Barcelona, Barcelona, Spain. [Cano-Vega M] Consorci Sanitari del Maresme, Mataró, Spain. [Contel-Guillamon M] Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Spain. [Feria-Raposo I] Complex Assistencial en Salut Mental Benito Menni, Sant Boi de Llobregat, Spain. [Hernández-Ribas R] Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Spain. [Pagerols-Hernàndez J] Parc de Salut Mar, Barcelona, Spain. [Sanz-Osorio MT] Consorci Sanitari de Terrassa, Terrassa, Spain, and Departament de Salut
- Subjects
Tabaquisme - Tractament ,Behavior and Behavior Mechanisms::Behavior::Tobacco Use::Smoking [PSYCHIATRY AND PSYCHOLOGY] ,Hospitals psiquiàtrics - Pacients ,conducta y mecanismos de la conducta::conducta::fumar [PSIQUIATRÍA Y PSICOLOGÍA] ,Other subheadings::/therapy [Other subheadings] ,Health Care Facilities, Manpower, and Services::Health Facilities::Hospitals::Hospitals, Special::Hospitals, Psychiatric [HEALTH CARE] ,Diagnòstic dual ,Otros calificadores::/terapia [Otros calificadores] ,instalaciones, servicios y personal de asistencia sanitaria::centros sanitarios::hospitales::hospitales especializados::hospitales psiquiátricos [ATENCIÓN DE SALUD] - Abstract
Fumadors; Pacients ingressats; Malalts mentals Smoking; Patient admitted; Mental patient Fumadores; Pacientes ingresados; Enfermo mental Aquesta guia pretén definir l'actuació de l'equip multidisciplinari que atén els pacients fumadors ingressats en unitats de salut mental.
- Published
- 2013
37. Combinative effects of thinning and prescribed burning on fuel reduction and soil arthropods: A case study in a Mediterranean pine forest.
- Author
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Longeard P, Santonja M, Morandini F, Gibernau M, Nadarajah S, Belliard P, Feignier N, Massaiu A, Andrei-Ruiz MC, and Ferrat L
- Abstract
Wildfire pressure involves today to implement silvicultural practices that provide a good compromise between reducing fire risk and maintaining ecological functioning. Thinning reduces tree density and low branches, but results in the deposition of a considerable biomass of woody debris on the ground (up to 4800 g m
2 in this study). They can be eliminated by prescribed burning, but this raises questions about the fire intensity that can be generated and the impact on soil fauna. We undertook the monitoring of a thinning and prescribed burning operation, separated and combined, in November 2020, in a Pinus laricio stand prone to fire risk, located in Bavella, Corsica. Fuel load was determined, and temperature measurements in the soil were performed using K-type thermocouples. Soil arthropod populations were monitored using pitfall traps, in particular Collembola, Acari, Aranae, and Coleoptera. The combination of thinning and burning resulted in a fire intensity of 75.8 versus 8.4 kW m-1 for burning alone. Maximum temperature rise measured at -2 cm below the surface was less than 5°C for both treatments. The combination of thinning and burning did not result in higher fire intensity at ground level than burning alone, and the soil showed high insulation capacity. Most of the woody debris that burned was small-diameter, and large-diameter debris remained unconsumed. This burning, performed during a period of low biological activity, had no effect on soil arthropods, and the presence of large debris may have provided refuge areas. Collembola group was the faster to recover, and were followed by cohorts of predators in summer, especially Acari. Our results suggest that a combination of burning and thinning in autumn may be beneficial for fire prevention. However, the decomposition of woody debris in relation to fire risk, and the occurrence of pests after these treatments need to be monitored., Competing Interests: The authors declare that they have no conflict of interest., (© 2024 The Author(s). Ecology and Evolution published by John Wiley & Sons Ltd.)- Published
- 2024
- Full Text
- View/download PDF
38. Floral scent of eastern skunk cabbage (Symplocarpus foetidus: Araceae).
- Author
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Goodrich KR and Gibernau M
- Subjects
- Volatile Organic Compounds chemistry, Volatile Organic Compounds isolation & purification, Volatile Organic Compounds analysis, Pollination, Flowers chemistry, Araceae chemistry, Odorants analysis
- Abstract
Symplocarpus foetidus (L.) Salisb. (eastern skunk cabbage) occurs across a broad geographic range of northeastern North America, blooming in winter between December and March. The inflorescences are well-known for their thermogenic and thermoregulatory metabolic capabilities. The perceptual qualities of their fetid floral aroma have been described widely in the literature, but to date the floral volatile composition remained largely unknown. Here we present a detailed study of the floral scent produced by S. foetidus collected from intact female- and male-stage inflorescences and from dissected floral parts. Our results show a large range of biosynthetically diverse volatiles including nitrogen- and sulfur-containing compounds, monoterpenes, benzenoids, and aliphatic esters and alcohols. We document high inter-individual variation with some organ-specific volatile trends but no clear strong variation based on sexual stage. Multivariate data analysis revealed two distinct chemotypes from our study populations that are not defined by sexual stage or population origin. The chemotype differences may explain the bimodal perceptual descriptions in earlier work which vary between highly unpleasant/fetid and pleasant/apple-like. We discuss the results in ecological contexts including potential for floral mimicry, taking into account existing pollination studies for the species. We also discuss the results in evolutionary contexts, comparing our scent data to published scent data from the close sister species Symplocarpus renifolius. Future work should more closely examine the chemotype occurrence and frequency within these and other populations, and the impact these chemotypes may have on pollinator attraction and reproductive success., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
39. Phylogenomics and the rise of the angiosperms.
- Author
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Zuntini AR, Carruthers T, Maurin O, Bailey PC, Leempoel K, Brewer GE, Epitawalage N, Françoso E, Gallego-Paramo B, McGinnie C, Negrão R, Roy SR, Simpson L, Toledo Romero E, Barber VMA, Botigué L, Clarkson JJ, Cowan RS, Dodsworth S, Johnson MG, Kim JT, Pokorny L, Wickett NJ, Antar GM, DeBolt L, Gutierrez K, Hendriks KP, Hoewener A, Hu AQ, Joyce EM, Kikuchi IABS, Larridon I, Larson DA, de Lírio EJ, Liu JX, Malakasi P, Przelomska NAS, Shah T, Viruel J, Allnutt TR, Ameka GK, Andrew RL, Appelhans MS, Arista M, Ariza MJ, Arroyo J, Arthan W, Bachelier JB, Bailey CD, Barnes HF, Barrett MD, Barrett RL, Bayer RJ, Bayly MJ, Biffin E, Biggs N, Birch JL, Bogarín D, Borosova R, Bowles AMC, Boyce PC, Bramley GLC, Briggs M, Broadhurst L, Brown GK, Bruhl JJ, Bruneau A, Buerki S, Burns E, Byrne M, Cable S, Calladine A, Callmander MW, Cano Á, Cantrill DJ, Cardinal-McTeague WM, Carlsen MM, Carruthers AJA, de Castro Mateo A, Chase MW, Chatrou LW, Cheek M, Chen S, Christenhusz MJM, Christin PA, Clements MA, Coffey SC, Conran JG, Cornejo X, Couvreur TLP, Cowie ID, Csiba L, Darbyshire I, Davidse G, Davies NMJ, Davis AP, van Dijk KJ, Downie SR, Duretto MF, Duvall MR, Edwards SL, Eggli U, Erkens RHJ, Escudero M, de la Estrella M, Fabriani F, Fay MF, Ferreira PL, Ficinski SZ, Fowler RM, Frisby S, Fu L, Fulcher T, Galbany-Casals M, Gardner EM, German DA, Giaretta A, Gibernau M, Gillespie LJ, González CC, Goyder DJ, Graham SW, Grall A, Green L, Gunn BF, Gutiérrez DG, Hackel J, Haevermans T, Haigh A, Hall JC, Hall T, Harrison MJ, Hatt SA, Hidalgo O, Hodkinson TR, Holmes GD, Hopkins HCF, Jackson CJ, James SA, Jobson RW, Kadereit G, Kahandawala IM, Kainulainen K, Kato M, Kellogg EA, King GJ, Klejevskaja B, Klitgaard BB, Klopper RR, Knapp S, Koch MA, Leebens-Mack JH, Lens F, Leon CJ, Léveillé-Bourret É, Lewis GP, Li DZ, Li L, Liede-Schumann S, Livshultz T, Lorence D, Lu M, Lu-Irving P, Luber J, Lucas EJ, Luján M, Lum M, Macfarlane TD, Magdalena C, Mansano VF, Masters LE, Mayo SJ, McColl K, McDonnell AJ, McDougall AE, McLay TGB, McPherson H, Meneses RI, Merckx VSFT, Michelangeli FA, Mitchell JD, Monro AK, Moore MJ, Mueller TL, Mummenhoff K, Munzinger J, Muriel P, Murphy DJ, Nargar K, Nauheimer L, Nge FJ, Nyffeler R, Orejuela A, Ortiz EM, Palazzesi L, Peixoto AL, Pell SK, Pellicer J, Penneys DS, Perez-Escobar OA, Persson C, Pignal M, Pillon Y, Pirani JR, Plunkett GM, Powell RF, Prance GT, Puglisi C, Qin M, Rabeler RK, Rees PEJ, Renner M, Roalson EH, Rodda M, Rogers ZS, Rokni S, Rutishauser R, de Salas MF, Schaefer H, Schley RJ, Schmidt-Lebuhn A, Shapcott A, Al-Shehbaz I, Shepherd KA, Simmons MP, Simões AO, Simões ARG, Siros M, Smidt EC, Smith JF, Snow N, Soltis DE, Soltis PS, Soreng RJ, Sothers CA, Starr JR, Stevens PF, Straub SCK, Struwe L, Taylor JM, Telford IRH, Thornhill AH, Tooth I, Trias-Blasi A, Udovicic F, Utteridge TMA, Del Valle JC, Verboom GA, Vonow HP, Vorontsova MS, de Vos JM, Al-Wattar N, Waycott M, Welker CAD, White AJ, Wieringa JJ, Williamson LT, Wilson TC, Wong SY, Woods LA, Woods R, Worboys S, Xanthos M, Yang Y, Zhang YX, Zhou MY, Zmarzty S, Zuloaga FO, Antonelli A, Bellot S, Crayn DM, Grace OM, Kersey PJ, Leitch IJ, Sauquet H, Smith SA, Eiserhardt WL, Forest F, and Baker WJ
- Subjects
- Fossils, Nuclear Proteins genetics, Genes, Plant genetics, Genomics, Magnoliopsida genetics, Magnoliopsida classification, Phylogeny, Evolution, Molecular
- Abstract
Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods
1,2 . A robust understanding of angiosperm evolution is required to explain their rise to ecological dominance. So far, the angiosperm tree of life has been determined primarily by means of analyses of the plastid genome3,4 . Many studies have drawn on this foundational work, such as classification and first insights into angiosperm diversification since their Mesozoic origins5-7 . However, the limited and biased sampling of both taxa and genomes undermines confidence in the tree and its implications. Here, we build the tree of life for almost 8,000 (about 60%) angiosperm genera using a standardized set of 353 nuclear genes8 . This 15-fold increase in genus-level sampling relative to comparable nuclear studies9 provides a critical test of earlier results and brings notable change to key groups, especially in rosids, while substantiating many previously predicted relationships. Scaling this tree to time using 200 fossils, we discovered that early angiosperm evolution was characterized by high gene tree conflict and explosive diversification, giving rise to more than 80% of extant angiosperm orders. Steady diversification ensued through the remaining Mesozoic Era until rates resurged in the Cenozoic Era, concurrent with decreasing global temperatures and tightly linked with gene tree conflict. Taken together, our extensive sampling combined with advanced phylogenomic methods shows the deep history and full complexity in the evolution of a megadiverse clade., (© 2024. The Author(s).)- Published
- 2024
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40. Insect floral visitors of thermo-Mediterranean shrubland maquis (Ajaccio, Corsica, France).
- Author
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Maestracci PY, Plume L, and Gibernau M
- Abstract
Background: The Mediterranean Region represents a biodiversity hotspot with a high rate of endemism. In its western part, Corsica Island is notable in terms of biodiversity due to its large surface and its large range of habitats from seaside to alpine biotopes. Amongst diverse groups, insects, notably the main orders of pollinators composed of Coleoptera, Hymenoptera, Diptera and Lepidoptera, represent a good part of the insular richness., New Information: Our sampling effort focused on the insects from these four orders visiting flowers in a characteristic thermo-Mediterranean vegetation. Our database is an insight into the Corsican floral visitor biodiversity from three sites separated by a few kilometres in the region of Ajaccio during 13 months over two successive years. In total, 4012 specimens were sampled and 252 species or morpho-species identified from 133 genera and 47 families. Beetles were by far the most abundant order representing about 54% of the sampled specimens. The most diverse order was the Hymenoptera representing 39% of the species. Our continuous survey showed that these orders are temporally dynamic both between years and between seasons in terms of abundance and diversity., (Pierre-Yves Maestracci, Laurent Plume, Marc Gibernau.)
- Published
- 2024
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41. Phytochemical diversity within and among Sardinian populations of the endemic Teucrium marum L. (Lamiaceae) is determined by ecological factors.
- Author
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Maccioni A, Macis S, Gibernau M, and Farris E
- Abstract
Wild aromatic plants present high intra- and inter-population chemical polymorphisms which are of great ecological and economic interest; however, the factors influencing the phytochemical diversity of aromatic plants remain still unexplored for many species. Here, Teucrium marum L. (Lamiaceae) has been studied, a plant endemic to the western Mediterranean islands, very well-known from the phytochemical point of view but scarcely investigated regarding the ecological factors that influence its phytochemical diversity within and among populations. The specific aims were to: 1) define the chemical composition variability of its essential oils; 2) determine its inter- and intra-population chemical variability; and 3) evaluate whether the elevation, climatic factors and/or the soil substrate determined the phytochemical variability of T. marum along a gradient from coastal to mountain wild populations on the island of Sardinia (Italy). Fresh T. marum aerial parts were randomly collected from ten individuals in six different localities in Sardinia: three coastal and three mountainous. Dried leaf samples were hydrodistillated using a classical Clevenger apparatus to obtain the corresponding essential oils. The composition of each essential oil was chemically characterised and analyzed by gas chromatography coupled to mass spectrometry. Ninety compounds were identified: among the others, the two compounds that mainly characterised the essential oils of the studied populations, dolichodial and (E) - β -caryophyllene, are of great economic interest. Statistical analyses showed significant differences in phytochemical essential oil composition among and within the studied populations, which clustered following a geographical pattern rather than a simple climatic or edaphic grouping. Taken together the results here shown shed light on the environmental and geographical conditions that determine the chemical variability of essential oils in T. marum , highlighting a clear coastal vs mountain clustering, which has an ecological and economic relevance, especially for the potential utilization of dolichodial as an environmental-friendly insecticide., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)
- Published
- 2023
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42. Extinction Risk Assessment and Chemical Composition of Aerial Parts Essential Oils from Two Endangered Endemic Malagasy Salvia Species.
- Author
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Rakotonandrasana SR, Paoli M, Randrianirina MJ, Ihandriharison H, Gibernau M, Bighelli A, Rakotoarisoa MF, Tomi P, Andrianjara C, Tomi F, and Rabehaja DJR
- Abstract
Seven essential oil samples of two endemic species of Malagasy sage, Salvia sessilifolia Baker and Salvia leucodermis Baker, were investigated via GC(RI), GC-MS and
13 C NMR spectrometry. In total, 81compounds were identified accounting for 93.5% to 98.7% of the total composition. The main constituents for the both species were ( E )-β-caryophyllene (29.2% to 60.1%), myrcene (1.2% to 21.7%), α-humulene (5.2% to 19.7%), ( E )-nerolidol (0.8% to 15.5%) and caryophyllene oxide (1.4% to 10.8%). Ethnobotanical survey of 46 informants revealed that decoctions of leafy twigs and chewed leaves were usually used. Due to the repeated fires, over-harvesting and grazing, the populations of S. sessilifolia and S. leucodermis are drastically fragmented. These risk factors led to threats to the habitats of the target species. Salvia sessilifolia Baker and Salvia leucodermis Baker are proposed to be classified as endangered species.- Published
- 2023
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43. Target sequence data shed new light on the infrafamilial classification of Araceae.
- Author
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Haigh AL, Gibernau M, Maurin O, Bailey P, Carlsen MM, Hay A, Leempoel K, McGinnie C, Mayo S, Morris S, Pérez-Escobar OA, Yeng WS, Zuluaga A, Zuntini AR, Baker WJ, and Forest F
- Subjects
- Phylogeny, Sequence Analysis, DNA, Araceae genetics, Magnoliopsida genetics
- Abstract
Premise: Recent phylogenetic studies of the Araceae have confirmed the position of the duckweeds nested within the aroids, and the monophyly of a clade containing all the unisexual flowered aroids plus the bisexual-flowered Calla palustris. The main objective of the present study was to better resolve the deep phylogenetic relationships among the main lineages within the family, particularly the relationships between the eight currently recognized subfamilies. We also aimed to confirm the phylogenetic position of the enigmatic genus Calla in relation to the long-debated evolutionary transition between bisexual and unisexual flowers in the family., Methods: Nuclear DNA sequence data were generated for 128 species across 111 genera (78%) of Araceae using target sequence capture and the Angiosperms 353 universal probe set., Results: The phylogenomic data confirmed the monophyly of the eight Araceae subfamilies, but the phylogenetic position of subfamily Lasioideae remains uncertain. The genus Calla is included in subfamily Aroideae, which has also been expanded to include Zamioculcadoideae. The tribe Aglaonemateae is newly defined to include the genera Aglaonema and Boycea., Conclusions: Our results strongly suggest that new research on African genera (Callopsis, Nephthytis, and Anubias) and Calla will be important for understanding the early evolution of the Aroideae. Also of particular interest are the phylogenetic positions of the isolated genera Montrichardia, Zantedeschia, and Anchomanes, which remain only moderately supported here., (© 2023 The Authors. American Journal of Botany published by Wiley Periodicals LLC on behalf of Botanical Society of America.)
- Published
- 2023
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44. Egg development and viability in three species of Cyclocephala (Coleoptera: Scarabaeidae: Dynastinae).
- Author
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Souza TB, Albuquerque LSC, Iannuzzi L, Costa FC, Gibernau M, and Maia ACD
- Subjects
- Animals, Female, Brazil, Forests, Pollination, Zygote growth & development, Breeding, Temperature, Time Factors, Humidity, Coleoptera growth & development
- Abstract
Different species of Cyclocephala scarab beetles (Scarabaeidae, Dynastinae) perform key functional roles in both natural and agricultural systems, such as the cycling of organic matter and pollination, while also being known as destructive pests both as immatures and adults. Therefore, the identification of biological parameters is crucial for defining strategies for their conservation and efficient pest management. In a forest fragment within the Brazilian Atlantic Forest biodiversity hotspot, we field-captured adult individuals of Cyclocephala cearae , C. celata , and C. paraguayensis then reared and bred them under controlled temperature and humidity conditions. On a daily basis, we individually weighted eggs of all three species, from oviposition until hatching, and monitored egg development parameters (i.e., incubation duration, viability, and egg weight increase). Our findings provide novel empirical evidence showing (i) a positive correlation between egg weight and incubation duration, (ii) idiosyncratic characteristics on egg development, and (iii) a negative (involuntary) effect of manipulation on egg development and viability. Thus, the successful breeding and rearing of Cyclocephala spp. is correlated with egg integrity and the targeted species. Our analyses present a quantitative understanding of the egg phase and can assist in refining strategies for ovicidal activity and pest management of Cyclocephala spp. in agriculture systems. Moreover, they can provide a basis for new studies related to captivity breeding, pollinator management, and developmental biology for biodiversity conservation.
- Published
- 2023
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45. Variation in scent amount but not in composition correlates with pollinator visits within populations of deceptive Arum maculatum L. (Araceae).
- Author
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Gfrerer E, Laina D, Gibernau M, Comes HP, Hörger AC, and Dötterl S
- Abstract
Floral scent is vital for pollinator attraction and varies among and within plant species. However, little is known about how inter-individual variation in floral scent affects the abundance and composition of floral visitor assemblages within populations. Moreover, for deceptive plants it is predicted that intra-population variation in scent can be maintained by negative frequency-dependent selection, but empirical evidence is still lacking. To investigate the ecological and evolutionary relations between inter-individual scent variation ( i.e ., total emission and composition) and floral visitors in deceptive plants, we studied floral scent, visitor assemblages, and fruit set in two populations of fly-pollinated (Psychodidae, Sphaeroceridae; Diptera) and deceptive Arum maculatum from Austria (JOS) and northern Italy (DAO). By correlating individual data on floral scent and visitor assemblages, we show that inter-individual variation in floral scent partly explains variation in visitor assemblages. The quantity of floral scent emitted per individual correlated positively with visitor abundance in both populations but explained visitor composition only in DAO, where strongly scented inflorescences attracted more sphaerocerid flies. However, in each population, the composition of floral scent did not correlate with the composition of floral visitors. There was also no evidence of negative frequency-dependent selection on floral scent. Instead, in JOS, more frequent scent phenotypes attracted more pollinators and were more likely to set an infructescence than rarer ones. Our results show that floral scent, despite being key in pollinator attraction in A. maculatum , only partly explains variation in pollinator abundance and composition. Overall, this study is the first to shed light on the importance of inter-individual variation in floral scent in explaining floral visitor assemblages at the population level in a deceptive plant species., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Gfrerer, Laina, Gibernau, Comes, Hörger and Dötterl.)
- Published
- 2023
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46. Transcriptomic analysis of deceptively pollinated Arum maculatum (Araceae) reveals association between terpene synthase expression in floral trap chamber and species-specific pollinator attraction.
- Author
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Szenteczki MA, Godschalx AL, Gauthier J, Gibernau M, Rasmann S, and Alvarez N
- Subjects
- Alkyl and Aryl Transferases, Flowers genetics, Flowers metabolism, Pollination genetics, Transcriptome, Araceae chemistry, Araceae metabolism, Arum metabolism, Volatile Organic Compounds analysis, Volatile Organic Compounds metabolism
- Abstract
Deceptive pollination often involves volatile organic compound emissions that mislead insects into performing nonrewarding pollination. Among deceptively pollinated plants, Arum maculatum is particularly well-known for its potent dung-like volatile organic compound emissions and specialized floral chamber, which traps pollinators-mainly Psychoda phalaenoides and Psychoda grisescens-overnight. However, little is known about the genes underlying the production of many Arum maculatum volatile organic compounds, and their influence on variation in pollinator attraction rates. Therefore, we performed de novo transcriptome sequencing of Arum maculatum appendix and male floret tissue collected during anthesis and postanthesis, from 10 natural populations across Europe. These RNA-seq data were paired with gas chromatography-mass spectrometry analyses of floral scent composition and pollinator data collected from the same inflorescences. Differential expression analyses revealed candidate transcripts in appendix tissue linked to malodourous volatile organic compounds including indole, p-cresol, and 2-heptanone. In addition, we found that terpene synthase expression in male floret tissue during anthesis significantly covaried with sex- and species-specific attraction of Psychoda phalaenoides and Psychoda grisescens. Taken together, our results provide the first insights into molecular mechanisms underlying pollinator attraction patterns in Arum maculatum and highlight floral chamber sesquiterpene (e.g. bicyclogermacrene) synthases as interesting candidate genes for further study., (© The Author(s) 2022. Published by Oxford University Press on behalf of Genetics Society of America.)
- Published
- 2022
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47. Towards a classification framework for patient safety incidents and adverse events for a mental health community-based model of service provision.
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Frigola-Capell E, Morgan R, Nogué A, Thelen I, Font J, Gonzalvo B, Oliveras P, Bacardí E, Malla MD, Gimeno A, Pla A, Serrano D, Palomer E, Trafach G, Sagredo JLI, De Castro M, Gibernau M, Serrallonga R, Roger M, and Cid J
- Subjects
- Humans, Community Health Services, Patient Safety, Mental Health
- Published
- 2022
- Full Text
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48. Antennae of psychodid and sphaerocerid flies respond to a high variety of floral scent compounds of deceptive Arum maculatum L.
- Author
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Gfrerer E, Laina D, Wagner R, Gibernau M, Hörger AC, Comes HP, and Dötterl S
- Subjects
- Animals, Cattle, Female, Flowers physiology, Odorants, Pheromones analysis, Pollination, Arum, Diptera
- Abstract
Insect-pollinated plants often release complex mixtures of floral scents to attract their pollinators. Yet scent compounds eliciting physiological or behavioural responses in pollinators have only been identified in few plant species. The sapromyiophilous aroid Arum maculatum releases a highly diverse dung-like scent with overall more than 300 different compounds recorded so far to attract its psychodid and other fly pollinators. The volatiles' role in pollinator attraction is mostly unknown. To identify potential behaviourally active compounds, we recorded electroantennographic responses of four Psychodidae and one Sphaeroceridae species to (1) inflorescence scents of A. maculatum and (2) the scents released by cow dung, likely imitated by the plant species. Here we show that these flies are sensitive to 78 floral volatiles of various chemical classes, 18 of which were also found in cow dung. Our study, which for the first time determined physiologically active compounds in the antennae of Psychoda spp. and Sphaeroceridae, identified various volatiles not known to be biologically active in any floral visitors so far. The obtained results help deciphering the chemical basis that enables A. maculatum and other plants, pollinated by psychodids and sphaerocerids, to attract and deceive their pollinators., (© 2022. The Author(s).)
- Published
- 2022
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49. Local Insect Availability Partly Explains Geographical Differences in Floral Visitor Assemblages of Arum maculatum L. (Araceae).
- Author
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Laina D, Gfrerer E, Scheurecker V, Fuchs R, Schleifer M, Zittra C, Wagner R, Gibernau M, Comes HP, Hörger AC, and Dötterl S
- Abstract
Geographical variation in abundance and composition of pollinator assemblages may result in variable selection pressures among plant populations and drive plant diversification. However, there is limited knowledge on whether differences in local visitor and pollinator assemblages are the result of site-specific strategies of plants to interact with their pollinators and/or merely reflect the pollinator availability at a given locality. To address this question, we compared locally available insect communities obtained by light-trapping with assemblages of floral visitors in populations of Arum maculatum (Araceae) from north vs. south of the Alps. We further investigated whether and how the abundance of different visitors affects plants' female reproductive success and examined the pollen loads of abundant visitors. Local insect availability explained inter-regional differences in total visitor abundance, but only partly the composition of visitor assemblages. Northern populations predominantly attracted females of Psychoda phalaenoides (Psychodidae, Diptera), reflecting the high availability of this moth fly in this region. More generalized visitor assemblages, including other psychodid and non-psychodid groups, were observed in the south, where the availability of P. phalaenoides /Psychodidae was limited. Fruit set was higher in the north than in the south but correlated positively in both regions with the abundance of total visitors and psychodids; in the north, however, this relationship disappeared when visitor abundances were too high. High pollen loads were recorded on both psychodids and other Diptera. We demonstrate for the first time that the quantitative assessment of floral visitor assemblages in relation to locally available insect communities is helpful to understand patterns of geographical variation in plant-pollinator interactions. This combined approach revealed that geographical differences in floral visitors of A. maculatum are only partly shaped by the local insect availability. Potential other factors that may contribute to the geographical pattern of visitor assemblages include the region-specific attractiveness of this plant species to flower visitors and the population-specific behavior of pollinators., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Laina, Gfrerer, Scheurecker, Fuchs, Schleifer, Zittra, Wagner, Gibernau, Comes, Hörger and Dötterl.)
- Published
- 2022
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50. Floral Scents of a Deceptive Plant Are Hyperdiverse and Under Population-Specific Phenotypic Selection.
- Author
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Gfrerer E, Laina D, Gibernau M, Fuchs R, Happ M, Tolasch T, Trutschnig W, Hörger AC, Comes HP, and Dötterl S
- Abstract
Floral scent is a key mediator in plant-pollinator interactions. However, little is known to what extent intraspecific scent variation is shaped by phenotypic selection, with no information yet in deceptive plants. In this study, we collected inflorescence scent and fruit set of the deceptive moth fly-pollinated Arum maculatum L. (Araceae) from six populations north vs. five populations south of the Alps, accumulating to 233 samples in total, and tested for differences in scent, fruit set, and phenotypic selection on scent across this geographic barrier. We recorded 289 scent compounds, the highest number so far reported in a single plant species. Most of the compounds occurred both north and south of the Alps; however, plants of the different regions emitted different absolute and relative amounts of scent. Fruit set was higher north than south of the Alps, and some, but not all differences in scent could be explained by differential phenotypic selection in northern vs. southern populations. This study is the first to provide evidence that floral scents of a deceptive plant are under phenotypic selection and that phenotypic selection is involved in shaping geographic patterns of floral scent in such plants. The hyperdiverse scent of A. maculatum might result from the imitation of various brood substrates of its pollinators., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Gfrerer, Laina, Gibernau, Fuchs, Happ, Tolasch, Trutschnig, Hörger, Comes and Dötterl.)
- Published
- 2021
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