100 results on '"Kwet, Axel"'
Search Results
2. Validation of Hylodes henselii Peters, 1870, from Southern Brazil and Description of Acoustic Variation in Eleutherodactylus guentheri (Anura: Leptodactylidae)
- Author
-
Kwet, Axel
- Published
- 2005
3. A new species of Adenomera from the Araucaria forest of Rio Grande do Sul (Brazil), with comments on the systematic status of southern populations of the genus
- Author
-
Kwet, Axel, Angulo, Ariadne, and BioStor
- Published
- 2002
4. The Taxonomic Status of Leptodactylus geminus Barrio, 1973
- Author
-
Kwet, Axel and Di-Bernardo, Marcos
- Published
- 2001
- Full Text
- View/download PDF
5. Proceratophrys bigibbosa Species Group (Anura: Leptodactylidae), with Description of a New Species
- Author
-
Kwet, Axel and Faivovich, Julian
- Published
- 2001
6. Taxonomic Revision of the Scinax alter Species Complex (Anura: Hylidae)
- Author
-
Nunes, Ivan, Kwet, Axel, and Pombal,, José P.
- Published
- 2012
7. Emergence of a bufonid herpesvirus in a population of the common toad (Bufo bufo) in Germany
- Author
-
Eisenberg, Tobias, primary, Hamann, Hans Peter, additional, Reuscher, Carina, additional, Kwet, Axel, additional, Heil, Katja Klier, additional, and Lamp, Benjamin, additional
- Published
- 2020
- Full Text
- View/download PDF
8. Studies on the poisonous skin secretion of individual red bellied toads, Melanophryniscusmontevidensis (Anura, Bufonidae), from Uruguay
- Author
-
Mebs, Dietrich, Pogoda, Werner, Maneyro, Raul, and Kwet, Axel
- Published
- 2005
- Full Text
- View/download PDF
9. Tetrodotoxin and its analogue 6-epitetrodotoxin in newts (Triturus spp.; Urodela, Salamandridae) from southern Germany
- Author
-
Yotsu-Yamashita, Mari, Mebs, Dietrich, Kwet, Axel, and Schneider, Michael
- Published
- 2007
- Full Text
- View/download PDF
10. Studies on the poisonous skin secretion of individual red bellied toads, Melanophryniscus montevidensis (Anura, Bufonidae), from Uruguay
- Author
-
Mebs, Dietrich, Pogoda, Werner, Maneyro, Raul, and Kwet, Axel
- Published
- 2005
- Full Text
- View/download PDF
11. Pseudopaludicola florencei Andrade & Haga & Lyra & Leite & Kwet & Haddad & Toledo & Giaretta 2018, sp. nov
- Author
-
Andrade, Felipe Silva De, Haga, Isabelle Aquemi, Lyra, Mariana Lúcio, Leite, Felipe Sá Fortes, Kwet, Axel, Haddad, Célio Fernando Baptista, Toledo, Luís Felipe, and Giaretta, Ariovaldo Antonio
- Subjects
Amphibia ,Pseudopaludicola florencei ,Animalia ,Pseudopaludicola ,Biodiversity ,Anura ,Leptodactylidae ,Chordata ,Taxonomy - Abstract
Pseudopaludicola florencei sp. nov. (Figures 2–3, Tables 1–2) Pseudopaludicola sp. (Andaraí/BA): Duarte et al. 2010; Andrade et al. 2016 Pseudopaludicola sp. 1 (Andaraí/BA): Veiga-Menoncello et al. 2014 Holotype. Adult male (ZUEC 23521; Figures 2–3, call voucher) collected by F.S. Andrade and A.A. Giaretta in Andaraí (12°48’22.28” S, 41°19’59.47” W, 416 m a.s.l.), Chapada Diamantina, state of Bahia, Brazil on 26 November 2016. Paratypes. Thirteen adult males: ZUEC 23512–3, 23515, 23518–20, 23522, 23524–5, 23527–30; and five adult females: ZUEC 23514, 23516–7, 23523, and 23526, all collected with the holotype. Seven specimens: UFMG 4310–6, collected at Área de Proteção Ambiental Marimbus-Iraquara, Andaraí, state of Bahia, Brazil (12°45’46” S, 41°17’48’’ W, 326 m a.s.l.; ca. 6 km from the type locality) on 26 January 2010 by F. S. F. Leite. Additional specimens: Brazil: state of Bahia: municipality of Mutuípe: CFBH 29652 (adult male); state of Minas Gerais: municipality of Nanuque: CFBH 33235 (adult female). Diagnosis. Pseudopaludicola florencei sp. nov. is assigned to the genus Pseudopaludicola by having a hypertrophied antebrachial tubercle (see Lynch 1989, Lobo 1995). The new species is characterized by the following combination of characters: (1) small size (SVL 12.8–14.8 mm in adult males); (2) upper eyelids smooth, with no palpebral tubercles; (3) heel smooth, with no enlarged conical tubercle; (4) relatively short hindlimbs (tibiotarsal articulation just reaching the posterior margin of eye); (5) 11 pairs of chromosomes (2n=22; see Duarte et al. 2010); and (6) advertisement call composed of regular series of three-pulsed notes, emitted at high rate. Comparison with other species. Pseudopaludicola florencei sp. nov. is promptly diagnosed from the P. pusilla species group (see Lynch 1989), which includes P. boliviana Parker, P. ceratophyes Rivero and Serna, P. llanera Lynch, P. pusilla (Ruthven), and P. motorzinho Pansonato, Veiga-Menoncello, Mudrek, Jansen, Recco- Pimentel, Martins, and Strüssmann by its terminal phalanges knobbed; whereas the abovementioned species have T-shaped terminal phalanges or expanded toe tips (disks or pads). The tips of the phalanges of the new species are similar in shape to those of P. falcipes (Figure 2B in Cardozo & Suárez 2012). The new species is also distinguished from P. ceratophyes by having upper eyelids smooth; P. ceratophyes has upper eyelids with an enlarged palpebral tubercle (Lynch 1989). Pseudopaludicola florencei sp. nov. differs from P. boliviana and P. motorzinho also by the heel smooth, with no enlarged, conical tubercle on the heel (Pansonato et al. 2016). Pseudopaludicola florencei sp. nov. is distinguished from P. saltica (Cope), P. murundu Toledo, Siqueira, Duarte, Veiga-Menoncello, Recco-Pimentel, and Haddad, and P. jaredi Andrade, Magalhães, Nunes-de-Almeida, Veiga-Menoncello, Santana, Garda, Loebmann, Recco-Pimentel, Giaretta, and Toledo (P. saltica species group) by having relatively short hindlimbs; i.e., the tibiotarsal articulation reaches the posterior margins of eye in the new species, whereas it reaches the tip of the snout in the P. saltica species group. The chromosome number 2n = 22 distinguishes Pseudopaludicola florencei sp. nov. (as Pseudopaludicola sp. in Duarte et al. 2010) from P. mystacalis (Cope) (2n = 16); P. canga Giaretta and Kokubum, P. facureae Andrade and Carvalho, and P. atragula Pansonato, Mudrek, Veiga-Menoncello, Rossa-Feres, Martins, and Strüssmann (2n = 18); P. ternetzi Miranda-Ribeiro and P. ameghini (Cope) (2n = 20) (Duarte et al. 2010; Fávero et al. 2011; Cardozo et al. 2016). In addition, Duarte et al. (2010) highlighted that P. florencei sp. nov. has morphological polymorphisms in the chromosomes 7, 8, and 11, which distinguishes it from P. mineira. Moreover, these same authors stated that the two species are distinguished by polymorphisms in the heterochromatin distribution and by the NOR position in the pair 8, which was terminal in P. mineira and subterminal in P. florencei sp. nov.. Pseudopaludicola florencei sp. nov. is promptly distinguished from P. canga (Giaretta & Kokubum 2003; Pansonato et al. 2012; Carvalho et al. 2015a), P. giarettai Carvalho (Carvalho 2012; Carvalho et al. 2015b), P. hyleaustralis Pansonato, Morais, Ávila, Kawashita-Ribeiro, Strüssmann, and Martins (Pansonato et al. 2012), P. facureae (Andrade & Carvalho 2013; Carvalho et al. 2015a), and P. parnaiba Roberto, Cardozo, and Ávila (Roberto et al. 2013; Carvalho et al. 2015a) by possessing pulsed notes, whereas those species have calls composed of non-pulsed notes. Note structure (three non-concatenated pulses) distinguishes P. florencei sp. nov. from species with notes with concatenated pulses (= lack of interpulse interval; sensu Magalhães et al. 2014): P. mystacalis [12– 14 concatenated pulses; Pansonato et al. 2013], P. boliviana [3–6; Duré et al. 2004], P. ibisoroca Pansonato, Veiga- Menoncello, Mudrek, Jansen, Recco-Pimentel, Martins, and Strüssmann [3–12; Pansonato et al. 2016], and P. motorzinho [2–6; Pansonato et al. 2016]. The new species is distinguished from other congeners [values within square brackets] with notes with nonconcatenated pulses by the following acoustic traits: P. ternetzi has shorter note duration (108–166 [32–80] ms) and interpulse interval (22–92 [1–14] ms), higher note (223–297 [606–921] notes per minute) and pulse rates (18–32 [61–139] pulses per second), and lower peak of dominant frequency (4608–5599 [3516–4500] Hz) (Andrade et al. 2017b); P. ameghini has shorter interpulse interval [1–23 ms], and higher note [348–452 notes per minute] and pulse rates [40–56 pulses per second], and lower peak of dominant frequency [3141–4312 Hz] (Andrade et al. 2017b); P. atragula has longer note duration [300–700 ms], higher number of pulses per note (3–4 [9–36]), lower note rate [42–98 notes per minute], and lower peak of dominant frequency [3618–4264 Hz] (Pansonato et al. 2014). The three species of the P. saltica species group (P. saltica, P. murundu, and P. jaredi) vary highly the number of pulses in their notes (2–7, combined values; Andrade et al. 2016); on the other hand, the new species has very stereotyped three-pulsed notes (Figure 4A). Pseudopaludicola falcipes may have notes with two or three pulses, but those with two pulses are more common (83 %, n = 240 analyzed notes; Figure 4D). In addition, the new species can be significantly differentiated from P. falcipes by having longer note duration and interpulse interval, and lower pulse and note rates (Wilcoxon-Mann-Whitney Test: P P. mineira by having stereotyped three-pulsed notes (only two notes of an individual have four pulses; n = 320 analyzed notes), whereas the P. mineira has stereotyped two-pulsed notes (Figure 4C). This character and its longer note duration (108–166 [42–87] ms) distinguish the new species from P. mineira (Pereira & Nascimento 2004; present study). Pseudopaludicola pocoto has also stereotyped three-pulsed notes (Figure 4B); however, P. florencei sp. nov. is readily distinguished from P. pocoto by having a higher note rate (223–297 [100–184] notes per minute). Additionally, P. florencei sp. nov. differs significantly from P. mineira by its note rate; and from P. pocoto by having shorter note duration, internote interval and interpulse interval, and higher pulse rate (Exact Wilcoxon- Mann-Whitney Test: P P. florencei sp. nov. is larger than P. pocoto, and smaller than P. mineira and P. falcipes (P P. florencei sp. nov. and its closer related species (P. mineira + P. pocoto) and P. falcipes, with all its individuals classified correctly (Table 3). The DAPC also revealed substantial differentiation among the new species and its closer related species (Figure 5B), with a greater separation along axis 1 (LD1 = 78.6 %; LD2 = 19.4 %). Number of pulses per note (66 %), pulse (12 %), and note (12 %) rates mainly accounted for species separation along LD1 (Figure 5B). Number of pulses per note (44 %), internote (27 %), and interpulse (18 %) intervals mainly accounted for species separation along LD2 (Figure 5B). See also the similar results presented in the performed PCAs (Appendix 4). Description of the holotype: Body elliptic and broad (Figure 2A–B; Table 1). Head elliptical, slightly wider than long. Snout subovoid in dorsal view and rounded in profile (Figure 2C–D). Eye not protuberant. Eye diameter equal to the interorbital distance. Interorbital area flat. Pupil rounded. Upper eyelid without tubercles. Nostril not protuberant and closer to the snout tip than to the eye. Canthus rostralis rounded, smooth. Loreal region slightly concave. Single subgular vocal sac, externally expanded and with discrete longitudinal folds. Choanae rounded well separated from each other. Vocal slits present. Tympanum indistinct. A discrete dermal fold extending from the posterior margin of the eye to the insertion of the arm. Mouth opening ventral. Vomerine teeth absent (unnoticeable also to the touch). Tongue elliptical, longer than wide, free posteriorly, without pigmentation at its base. Flanks with discrete granules. One ovoid antebrachial tubercle present in the first quarter of the forearm and a second ovoid tubercle closer to elbow. Finger and toe tips not expanded. Outer and inner metacarpal tubercles welldefined, outer metacarpal tubercle ovoid and inner metacarpal tubercle elliptical. Fingers with single and rounded subarticular tubercles. Palm of hand smooth, with no supernumerary tubercles. Thumb with a keratinized, light brown nuptial pad, extending from the base of the hand to the proximal limit of the terminal phalanx, covering almost the entire external portion of the finger. Webbing absent between fingers. Relative finger lengths, when adpressed one to another: I Color pattern of the holotype in preservative. Dorsum grayish with dark grey, white, and brown blotches. Brown dorsolateral stains on body, from posterior corner of eyes to the region of insertion of legs. Belly whitish (unpigmented). Throat whitish, pigmented (with small black dots scattered). Dorsum darker than the dorsal surfaces of limbs. Region between upper lip and eyes with alternating vertical grey and light beige stripes. Ventral faces of arms and legs unpigmented, except of the thigh (pigmented as in throat). Palm of hand pigmented. Sole of foot pigmented and darker than hands, arms, and legs. Color of the sole of the foot similar to that of dorsal leg. Dorsal faces of arms light grayish with dark brown blotches. Dorsal faces of legs light grayish with dark brown transversal discontinuous stripes and with scattered brown blotches. Transverse stripes on thighs (2–3), shanks (3– 4), feet (3–4). Dark brown nuptial pads (Figure 2A). Variation in type series. Dorsal surface of body varies from dark grey to dark brown, with black or dark brown irregular blotches (Figure 3). Ventral surface pigmented (with small black dots scattered) on throat, chest, and belly (ZUEC 23512–3, 23515–8, 23520, 23522–3, 23525–8, 23530). The specimen ZUEC 23520 has a brown vertebral line, and the specimens ZUEC 23512, 23514, and 23520 have white scattered blotches on dorsum. The specimens ZUEC 23512–4, 23516–7, 23519, 23521–5, 23528, and 23530 do not have dorsolateral stains on body, from posterior corner of eyes to the region of insertion of legs. The specimens ZUEC 23514, 23523–4, and 23529– 30 have a discrete tympanic ridge from behind the eyes to the proximal portion of the arms. The specimens ZUEC 23525–8 have white blotches on the region between the mouth corner and the insertion of the arms. The specimen ZUEC 23512 has a large black blotch on dorsum. The specimen ZUEC 23527 has two large black blotches in the posterior portion of the dorsum, slightly above the cloacal region. Females have a more robust body and no nuptial pads, vocal sac and vocal slits. Vocalizations. Pseudopaludicola florencei sp. nov. emits an advertisement call of variable duration that can be long (1.6– 22.4 s), consisting of series of three-pulsed notes (1–5 series of three-pulsed notes per call) that lasts 0.4– 22.4 s, separated by intervals of 103–561 ms (Figure 4A). Notes last 108–166 ms separated by intervals of 64–141 ms, and are released at a rate of 223–297 notes per minute; notes have a slightly increase in amplitude from the first to the second pulses (= midpoint of note), followed by a decrease in amplitude regarding the second and third pulses (see oscillogram in Figure 4A). Notes are composed of three non-concatenated pulses (Figure 4A); notes with four pulses were rarely found (only two notes of an individual). Pulses vary from 4–16 ms, separated by intervals of 22–92 ms, and are released at a rate of 18–32 pulses per second (Figure 4A). Dominant (= fundamental) frequency peaks are between 4608–5599 Hz; minimum frequency ranges 4005–5125 Hz, and the maximum frequency ranges 4996–6804 Hz. Notes present up to two harmonics; the second ranging from 8915– 10982 Hz (mean = 9834; SD = 525) (Figure 4A). Air temperature of recorded calls varied from 22 to 23.5 °C. Call quantitative traits are summarized in Table 2. An additional pulsed note was noticed shortly after four advertisement calls from two recorded males (Figure 6) and other males heard in the field. Regular notes can gradually gain pulses until they become this note type (Figure 6). This note (n = 10) has a duration ranging from 68–116 ms (mean = 83 ± 16), is composed of 7–14 pulses (mean = 10.9 ± 2.1), lasting 2–9 ms (mean = 5 ± 1), is separated by intervals of 0–22 ms (mean = 4 ± 1), and is emitted at rates of 93–157 pulses per second (mean = 134 ± 22). The dominant frequency varies from 4436–4823 Hz (mean = 4630 ± 158); minimum frequency ranges 3747–3833 Hz (mean = 3781 ± 34) and maximum frequency ranges 4996–5125 Hz (mean = 5060 ± 42) (Figure 6). Another emphasized frequency band may be present, peaking from 8398–8570 Hz (mean = 8488 ± 59). Distribution. Pseudopaludicola florencei sp. nov. is known from its type locality, and in the municipality of Mutuípe, state of Bahia, Northeastern Brazil, and in the municipality of Nanuque, state of Minas Gerais, Southeastern Brazil (Darío Cardozo pers. Communication; see Figure 1). Mutuípe and Nanuque are situated about 200 km southeast and 560 km south of the type locality, respectively. Natural history. The holotype and paratypes collected on November 2016 were recorded on the banks of a river that crosses the urban area of Andaraí. In this place, we observed hundreds of specimens of P. florencei sp. nov. occurring syntopically with Dendropsophus sp. and Rhinella granulosa. We also have some call recordings of the seven paratypes from Área de Proteção Ambiental Marimbus-Iraquara, which is a protected site. In the field, we heard and recorded the additional pulsed note abovementioned. In all our field recordings, males were isolated at their calling sites, without any close-range encounters. However, there were dozens of males competing for calling sites at that night; it was possible to observe several males interacting physically. In these interactions, some males jumped quickly over the calling males, but no fighting was observed. Etymology. The specific name honors Antoine Hercule Romuald Florence. Better known as Hercule Florence, a French artist, painter, polygrapher, and inventor, is acknowledged as the inventor of photography in Brazil in the 19th century. After his return from the Langsdorff’s expedition (from 1826 to 1829), Florence developed a system able to properly describe animal sounds, transcribing them into a five line music staff (Florence 1831, 1876; Toledo & Araújo 2017). Such method, termed as “Zoophonie” by Florence, was the first universal method of describing animal sounds and he is therefore designated as the “father of bioacoustics” (Vielliard 1993; Toledo & Araújo 2017). At least these two techniques (photography and zoophony = bioacoustics) are fundamental for species description nowadays (Köhler et al. 2017). Specifically, bioacoustics has proved to be efficient in clarifying the taxonomy of the genus Pseudopaludicola (as in the present study). Phylogenetic inferences and mitochondrial DNA divergences. We recovered the same tree topology inferred by Veiga-Menoncello et, Published as part of Andrade, Felipe Silva De, Haga, Isabelle Aquemi, Lyra, Mariana Lúcio, Leite, Felipe Sá Fortes, Kwet, Axel, Haddad, Célio Fernando Baptista, Toledo, Luís Felipe & Giaretta, Ariovaldo Antonio, 2018, A new species of Pseudopaludicola Miranda-Ribeiro (Anura: Leptodactylidae: Leiuperinae) from eastern Brazil, with novel data on the advertisement call of Pseudopaludicola falcipes (Hensel), pp. 71-100 in Zootaxa 4433 (1) on pages 75-84, DOI: 10.11646/zootaxa.4433.1.4, http://zenodo.org/record/1287688, {"references":["Duarte, T. C., Veiga-Menoncello, A. C. P., Lima, J. F. R., Strussmann, C., Del-Grande, M. L., Giaretta, A. A., Pereira, E. G., Rossa- Feres, D. C. & Recco-Pimentel, S. M. (2010) Chromosome analysis in Pseudopaludicola (Anura, Leiuperidae), with description of sex chromosomes XX / XY in P. saltica. Hereditas, 147, 43 - 52. https: // doi. org / 10.1111 / j. 1601 - 5223.2009.02153. x","Andrade, F. S., Magalhaes, F. M., Nunes-de-Almeida, C. H. L., Veiga-Menoncello, A. C. P., Santana, D. J., Garda, A. A., Loebmann, D., Recco-Pimentel, S. M., Giaretta, A. A. & Toledo, L. F. (2016) A new species of long-legged Pseudopaludicola from Northeastern Brazil (Anura, Leptodactylidae, Leiuperinae). Salamandra, 52, 107 - 124.","Lynch, J. D. (1989) A review of leptodactylid frogs of the genus Pseudopaludicola in northern South America. Copeia, 3, 577 - 588. https: // doi. org / 10.2307 / 1445483","Lobo, F. (1995) Analisis filogenetico del genero Pseudopaludicola (Anura: Leptodactylidae). Cuadernos de Herpetologia, 9, 21 - 43.","Cardozo, D. & Suarez, P. (2012) Osteological description of Pseudopaludicola canga with implications for the taxonomic position of this taxon. Zootaxa, 3515, 75 - 82.","Pansonato, A., Veiga-Menoncello, A. C. P., Mudrek, J. R., Jasen, M., Recco-Pimentel, S. M., Martins, I. A. & Strussmann, C. (2016) Two new species of Pseudopaludicola (Anura: Leptodactylidae: Leiuperinae) from eastern Bolivia and western Brazil. Herpetologica, 72, 235 - 255. https: // doi. org / 10.1655 / Herpetologica-D- 14 - 00047.1","Favero, E. R., Veiga-Menoncello, A. C. P., Rossa-Feres, D. C., Strussmann, C., Giaretta, A. A., Andrade, G. V., Colombo, P. & Recco-Pimentel, S. M. (2011) Intrageneric karyotypic variation in Pseudopaludicola (Anura: Leiuperidae) and its taxonomic relatedness. Zoological Studies, 50, 826 - 836.","Cardozo, D., Boeris, J. M., Ferro, J. M., Borteiro, C., Kolenc, F., Suarez, P., Netto, F., Brusquetti, F. & Baldo, D. (2016) Evidence for independent instances of chromosome number reduction in the genus Pseudopaludicola (Anura: Leptodactylidae). Salamandra, 52, 11 - 22.","Giaretta, A. A. & Kokubum, M. N. C. (2003) A new species of Pseudopaludicola (Anura, Leptodactylidae) from Northern Brazil. Zootaxa, 383 (1), 1 - 8. https: // doi. org / 10.11646 / zootaxa. 383.1.1","Pansonato, A., Morais, D. H., Avila, R. W., Kawashita-Ribeiro, R. A., Strussmann, C. & Martins, I. A. (2012) A new species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leiuperidae) from the state of Mato Grosso, Brazil, with comments on the geographic distribution of Pseudopaludicola canga Giaretta & Kokubum, 2003. Zootaxa, 3523, 49 - 58.","Carvalho, T. R., Teixeira, B. F. V., Martins, L. B. & Giaretta, A. A. (2015 a) Intraspecific variation and new distributional records for Pseudopaludicola species (Anura, Leptodactylidae, Leiuperinae) with trilled advertisement call pattern: diagnostic characters revisited and taxonomic implications. North-Western Journal of Zoology, 11, 262 - 273.","Carvalho, T. R. (2012) A new species of Pseudopaludicola Miranda-Ribeiro (Leiuperinae: Leptodactylidae: Anura) from the Cerrado of Southeastern Brazil with a distinctive advertisement call pattern. Zootaxa, 3328, 47 - 54.","Carvalho, T. R., Borges-Martins, M., Teixeira, B. F. V., Godinho, L. B. & Giaretta, A. A. (2015 b) Intraspecific variation in acoustic traits and body size, and new distributional records for Pseudopaludicola giarettai Carvalho, 2012 (Anura, Leptodactylidae, Leiuperinae): implications for its congeneric diagnosis. Papeis Avulsos de Zoologia, 55, 245 - 254. https: // doi. org / 10.1590 / 0031 - 1049.2015.55.17","Andrade, F. S. & Carvalho, T. R. (2013) A new species of Pseudopaludicola Miranda-Ribeiro (Leiuperinae: Leptodactylidae: Anura) from the Cerrado of southeastern Brazil. Zootaxa, 3608 (5), 389 - 397. https: // doi. org / 10.11646 / zootaxa. 3608.5.7","Roberto, I. J., Cardozo, D. & Avila, R. W. (2013) A new species of Pseudopaludicola (Anura, Leiuperidae) from western Piaui State, Northeast Brazil. Zootaxa, 3636 (2), 348 - 360. https: // doi. org / 10.11646 / zootaxa. 3636.2.6","Magalhaes, F. M., Loebmann, D., Kokubum, M. N. C., Haddad, C. F. B. & Garda, A. A. (2014) A new species of Pseudopaludicola (Anura: Leptodactylidae: Leiuperinae) from Northeastern Brazil. Herpetologica, 70, 77 - 88. https: // doi. org / 10.1655 / HERPETOLOGICA-D- 13 - 00054","Pansonato, A., Strussmann, C., Mudrek, J. R. & Martins, I. A. (2013) Morphometric and bioacoustic data on three species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) described from Chapada dos Guimaraes, Mato Grosso, Brazil, with the revalidation of Pseudopaludicola ameghini (Cope, 1887). Zootaxa, 3620 (1), 147 - 162. https: // doi. org / 10.11646 / zootaxa. 3620.1.7","Dure, M. I., Schaefer, E. F., Hamann, M. I. & Kehr, A. I. (2004) Consideraciones ecologicas sobre la dieta, la reproduccion y el parasitismo de Pseudopaludicola boliviana (Anura, Leptodactylidae) de Corrientes, Argentina. Phyllomedusa, 3, 121 - 131. https: // doi. org / 10.11606 / issn. 2316 - 9079. v 3 i 2 p 121 - 131","Andrade, F. S., Haga, I. A., Bang, D. L. & Giaretta, A. A. (2017 b) The differential acoustic diagnosis between two Pseudopaludicola sister species (Anura, Leptodactylidae, Leiuperinae). Zootaxa, 4319 (2), 391 - 400. https: // doi. org / 10.11646 / Zootaxa. 4319.2.12","Pansonato, A., Mudrek, J. R., Veiga-Menoncello, A. C. P., Rossa-Feres, D. C., Martins, I. A. & Strussmann, C. (2014) A new species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) from northwestern state of Sao Paulo, Brazil. Zootaxa, 3861 (3), 249 - 264. https: // doi. org / 10.11646 / zootaxa. 3861.3.3","Pereira, E. G. & Nascimento, L. B. (2004) Descricao da vocalizacao e do girino de Pseudopaludicola mineira Lobo, 1994, com notas sobre a morfologia de adultos (Amphibia, Anura, Leptodactylidae). Arquivos do Museu Nacional, 62, 233 - 240.","Florence, H. (1831) Recherches sur la voix des animaux ou essai d'un nouveau sujet d'etudes offert aux amis de la nature. Typography by R. Ogier, rua da Cadeia, n o 142, Rio de Janeiro, 16 pp. accompanied of a musical system with 18 figures. [brochure]","Florence, H. (1876) Zoophonia. Revista Trimestral do Instituto Historico Geographico e Ethnographico do Brasil, 39 (2), 323 - 336.","Toledo, L. F. & Araujo, C. B. (2017) Zoophonie: les origines de la bioacoustique. In: Nagler, L. F. & Raimondi, C. (Eds.), Hercule Florence: le nouveau Robinson, Humboldt Books, Milan, pp. 265 - 285.","Vielliard, J. M. E. (1993) A Zoophonia de Hercule Florence. Editora Universitaria, UFMT, Cuiaba, 48 pp.","Kohler, J., Jansen, M., Rodriguez, A., Kok, P. J. R., Toledo, L. F., Emmrich, M., Glaw, F., Haddad, C. F. B., Rodel, M. O. & Vences, M. (2017) The use of bioacoustics in anuran taxonomy: theory, terminology, methods and recommendations for best practice. Zootaxa, 4251 (1), 1 - 124. https: // doi. org / 10.11646 / zootaxa. 4251.1.1","Silveira, F. A. O., Negreiros, D., Barbosa, N. P. U., Buisson, E., Carmo, F. F., Carstensen, D. W., Conceicao, A. A., Cornelissen, T. G., Echternacht, L., Fernandes, G. W., Garcia, Q. S., Guerra, T. J., Jacobi, C. M., Lemos-Filho, J. P., Stradic, S. L., Morellato, L. P. C., Neves, F. S., Oliveira, R. S., Schaefer, C. E., Viana, P. L. & Lambers, H. (2016) Ecology and evolution of plant diversity in the endangered campo rupestre: a neglected conservation priority. Plant and Soil, 403, 129 - 152. https: // doi. org / 10.1007 / s 11104 - 015 - 2637 - 8","Lantyer-Silva, A. S. F., Matos, M. A., Gogliath, M., Marciano-Junior, E. & Nicola, P. A. (2016) New records of Pseudopaludicola pocoto Magalhaes, Loebmann, Kokubum, Haddad & Garda, 2014 (Amphibia: Anura: Leptodactylidae) in the Caatinga Biome, Brazil. Check list, 12 (6), 1 - 4. https: // doi. org / 10.15560 / 12.6.1989"]}
- Published
- 2018
- Full Text
- View/download PDF
12. A new species of Pseudopaludicola Miranda-Ribeiro (Anura: Leptodactylidae: Leiuperinae) from eastern Brazil, with novel data on the advertisement call of Pseudopaludicola falcipes (Hensel)
- Author
-
DE ANDRADE, FELIPE SILVA, primary, HAGA, ISABELLE AQUEMI, additional, LYRA, MARIANA LÚCIO, additional, LEITE, FELIPE SÁ FORTES, additional, KWET, AXEL, additional, HADDAD, CÉLIO FERNANDO BAPTISTA, additional, TOLEDO, LUÍS FELIPE, additional, and GIARETTA, ARIOVALDO ANTONIO, additional
- Published
- 2018
- Full Text
- View/download PDF
13. Vocalizations of Limnomedusa macroglossa (Amphibia: Anura: Alsodidae).
- Author
-
GUERRA, VINICIUS, LINGNAU, RODRIGO, DE SOUZA BARRETO, BRUNO, KWET, AXEL, and PEREIRA BASTOS, ROGÉRIO
- Published
- 2018
14. Nota sobre ocorrência de Melanophryniscus macrogranulosus BRAUN, 1973 no município de Maquiné, Rio Grande do Sul
- Author
-
Poli, Fernando, Bartelli, Gustavo, Cuozzo, Luciano, Porcher, Paulo, Renner, Samuel, Grillo, Hamilton, and Kwet, Axel
- Published
- 2011
- Full Text
- View/download PDF
15. High levels of diversity uncovered in a widespread nominal taxon : continental phylogeography of the Neotropical tree frog Dendropsophus minutus
- Author
-
Gehara, Marcelo, Crawford, Andrew J., Orrico, Victor G. D., Rodríguez, Ariel, Lötters, Stefan, Fouquet, Antoine, Barrientos, Lucas S., Brusquetti, Francisco, De la Riva, Ignacio, Ernst, Raffael, Gagliardi Urrutia, Giuseppe, Glaw, Frank, Guayasamin, Juan M., Hölting, Monique, Jansen, Martin, Kok, Philippe J. R., Kwet, Axel, Lingnau, Rodrigo, Lyra, Mariana, Moravec, Jiří, Pombal Jr, José P., J. M. Rojas-Runjaic, Fernando, Schulze, Arne, Señaris, J. Celsa, Solé, Mirco, Trefaut Rodrigues, Miguel, Twomey, Evan, Haddad, Celio F. B., Vences, Miguel, Köhler, Jörn, Gehara, Marcelo, Crawford, Andrew J., Orrico, Victor G. D., Rodríguez, Ariel, Lötters, Stefan, Fouquet, Antoine, Barrientos, Lucas S., Brusquetti, Francisco, De la Riva, Ignacio, Ernst, Raffael, Gagliardi Urrutia, Giuseppe, Glaw, Frank, Guayasamin, Juan M., Hölting, Monique, Jansen, Martin, Kok, Philippe J. R., Kwet, Axel, Lingnau, Rodrigo, Lyra, Mariana, Moravec, Jiří, Pombal Jr, José P., J. M. Rojas-Runjaic, Fernando, Schulze, Arne, Señaris, J. Celsa, Solé, Mirco, Trefaut Rodrigues, Miguel, Twomey, Evan, Haddad, Celio F. B., Vences, Miguel, and Köhler, Jörn
- Abstract
Species distributed across vast continental areas and across major biomes provide unique model systems for studies of biotic diversification, yet also constitute daunting financial, logistic and political challenges for data collection across such regions. The tree frog Dendropsophus minutus (Anura: Hylidae) is a nominal species, continentally distributed in South America, that may represent a complex of multiple species, each with a more limited distribution. To understand the spatial pattern of molecular diversity throughout the range of this species complex, we obtained DNA sequence data from two mitochondrial genes, cytochrome oxidase I (COI) and the 16S rhibosomal gene (16S) for 407 samples of D. minutus and closely related species distributed across eleven countries, effectively comprising the entire range of the group. We performed phylogenetic and spatially explicit phylogeographic analyses to assess the genetic structure of lineages and infer ancestral areas. We found 43 statistically supported, deep mitochondrial lineages, several of which may represent currently unrecognized distinct species. One major clade, containing 25 divergent lineages, includes samples from the type locality of D. minutus. We defined that clade as the D. minutus complex. The remaining lineages together with the D. minutus complex constitute the D. minutus species group. Historical analyses support an Amazonian origin for the D. minutus species group with a subsequent dispersal to eastern Brazil where the D. minutus complex originated. According to our dataset, a total of eight mtDNA lineages have ranges >100,000 km2. One of them occupies an area of almost one million km2 encompassing multiple biomes. Our results, at a spatial scale and resolution unprecedented for a Neotropical vertebrate, confirm that widespread amphibian species occur in lowland South America, yet at the same time a large proportion of cryptic diversity still remains to be discovered.
- Published
- 2014
16. Translating natural history into geographic space: a macroecological perspective on the North American Slider, Trachemys scripta (Reptilia, Cryptodira, Emydidae)
- Author
-
Rödder, Dennis, Kwet, Axel, and Lötters, Stefan
- Subjects
Biodiversity ,Taxonomy - Abstract
Rödder, Dennis, Kwet, Axel, Lötters, Stefan (2009): Translating natural history into geographic space: a macroecological perspective on the North American Slider, Trachemys scripta (Reptilia, Cryptodira, Emydidae). Journal of Natural History 43 (39-40): 2525-2536, DOI: 10.1080/00222930903100550, URL: http://dx.doi.org/10.1080/00222930903100550
- Published
- 2009
17. The identity of Hyla leucotaenia Burmeister, 1861 (Anura: Hylidae)
- Author
-
PINHEIRO, PAULO D. P., primary, FAIVOVICH, JULIÁN, additional, LANGONE, JOSÉ A., additional, and KWET, AXEL, additional
- Published
- 2014
- Full Text
- View/download PDF
18. High Levels of Diversity Uncovered in a Widespread Nominal Taxon: Continental Phylogeography of the Neotropical Tree Frog Dendropsophus minutus
- Author
-
Gehara, Marcelo, primary, Crawford, Andrew J., additional, Orrico, Victor G. D., additional, Rodríguez, Ariel, additional, Lötters, Stefan, additional, Fouquet, Antoine, additional, Barrientos, Lucas S., additional, Brusquetti, Francisco, additional, De la Riva, Ignacio, additional, Ernst, Raffael, additional, Urrutia, Giuseppe Gagliardi, additional, Glaw, Frank, additional, Guayasamin, Juan M., additional, Hölting, Monique, additional, Jansen, Martin, additional, Kok, Philippe J. R., additional, Kwet, Axel, additional, Lingnau, Rodrigo, additional, Lyra, Mariana, additional, Moravec, Jiří, additional, Pombal, José P., additional, Rojas-Runjaic, Fernando J. M., additional, Schulze, Arne, additional, Señaris, J. Celsa, additional, Solé, Mirco, additional, Rodrigues, Miguel Trefaut, additional, Twomey, Evan, additional, Haddad, Celio F. B., additional, Vences, Miguel, additional, and Köhler, Jörn, additional
- Published
- 2014
- Full Text
- View/download PDF
19. Advertisement call of the leptodactylid frog Preceratophys avelinoi
- Author
-
Kwet, Axel and Baldo, Juan Diego
- Subjects
Ciencias Biológicas ,Otras Ciencias Biológicas ,BIOACUSTIC ,CIENCIAS NATURALES Y EXACTAS ,PROCERATOPHRYS AVELINOI - Abstract
The Proceratophrys bigibbosa species group has recently been reviewed by Kwet and Faivovich (2001). Proceratophrys cristinaeBraun, 1973 was regarded as a juniorsynonym of Proceratophrys bigibbosa (Peters, 1872), whereas the species identi ed as P. bigibbosa by Braun (1973) was described as Proceratophrys brauni Kwet and Faivovich, 2001. In addition to P. bigibbosa and P. brauni, two more species belong to the bigibbosa group, Proceratophryspalustris Giaretta and Sazima, 1993 and Proceratophrysavelinoi Mercadal de Barrio and Barrio, 1993. Fil: Kwet, Axel. Staatliches Museum für Naturkunde Stuttgart; Alemania Fil: Baldo, Juan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; Argentina
- Published
- 2003
- Full Text
- View/download PDF
20. The conservation status of the world’s reptiles
- Author
-
Böhm, Monika, Collen, Ben, Baillie, Jonathan E. M., Bowles, Philip, Chanson, Janice, Cox, Neil, Hammerson, Geoffrey, Hoffmann, Michael, Livingstone, Suzanne R., Ram, Mala, Rhodin, Anders G. J., Stuart, Simon N., van Dijk, Peter Paul, Young, Bruce E., Afuang, Leticia E., Aghasyan, Aram, García, Andrés, Aguilar, César, Ajtic, Rastko, Akarsu, Ferdi, Alencar, Laura R. V., Allison, Allen, Ananjeva, Natalia, Anderson, Steve, Andrén, Claes, Ariano-Sánchez, Daniel, Arredondo, Juan Camilo, Auliya, Mark, Austin, Christopher C., Avci, Aziz, Baker, Patrick J., Barreto-Lima, André F., Barrio-Amorós, César L., Basu, Dhruvayothi, Bates, Michael F., Batistella, Alexandre, Bauer, Aaron, Bennett, Daniel, Böhme, Wolfgang, Broadley, Don, Brown, Rafe, Burgess, Joseph, Captain, Ashok, Carreira, Santiago, Castañeda, Maria del Rosario, Castro, Fernando, Catenazzi, Alessandro, Cedeño-Vázquez, José R., Chapple, David G., Cheylan, Marc, Cisneros-Heredia, Diego F., Cogalniceanu, Dan, Cogger, Hal, Corti, Claudia, Costa, Gabriel C., Couper, Patrick J., Courtney, Tony, Crnobrnja-Isailovic, Jelka, Crochet, Pierre-André, Crother, Brian, Cruz, Felix, Daltry, Jennifer C., Daniels, R. J. Ranjit, Das, Indraneil, de Silva, Anslem, Diesmos, Arvin C., Dirksen, Lutz, Doan, Tiffany M., Dodd Jr, C. Kenneth, Doody, J. Sean, Dorcas, Michael E., Duarte de Barros Filho, Jose, Egan, Vincent T., El Mouden, El Hassan, Embert, Dirk, Espinoza, Robert E., Fallabrino, Alejandro, Feng, Xie, Feng, Zhao-Jun, Fitzgerald, Lee, Flores-Villela, Oscar, França, Frederico G. R., Frost, Darrell, Gadsden, Hector, Gamble, Tony, Ganesh, S. R., Garcia, Miguel A., García-Pérez, Juan E., Gatus, Joey, Gaulke, Maren, Geniez, Philippe, Georges, Arthur, Gerlach, Justin, Goldberg, Stephen, Gonzalez, Juan-Carlos T., Gower, David J., Grant, Tandora, Greenbaum, Eli, Grieco, Cristina, Guo, Peng, Hamilton, Alison M., Hare, Kelly, Hedges, S. Blair, Heideman, Neil, Hilton-Taylor, Craig, Hitchmough, Rod, Hollingsworth, Bradford, Hutchinson, Mark, Ineich, Ivan, Iverson, John, Jaksic, Fabian M., Jenkins, Richard, Joger, Ulrich, Jose, Reizl, Kaska, Yakup, Kaya, Uğur, Keogh, J. Scott, Köhler, Gunther, Kuchling, Gerald, Kumlutaş, Yusuf, Kwet, Axel, La Marca, Enrique, Lamar, William, Lane, Amanda, Lardner, Bjorn, Latta, Craig, Latta, Gabrielle, Lau, Michael, Lavin, Pablo, Lawson, Dwight, LeBreton, Matthew, Lehr, Edgar, Limpus, Duncan, Lipczynski, Nicola, Lobo, Aaron S., López-Luna, Marco A., Luiselli, Luca, Lukoschek, Vimoksalehi, Lundberg, Mikael, Lymberakis, Petros, Macey, Robert, Magnusson, William E., Mahler, D. Luke, Malhotra, Anita, Mariaux, Jean, Maritz, Bryan, Marques, Otavio A. V., Márquez, Rafael, Martins, Marcio, Masterson, Gavin, Mateo, José A., Mathew, Rosamma, Mathews, Nixon, Mayer, Gregory, McCranie, James R., Measey, G. John, Mendoza-Quijano, Fernando, Menegon, Michele, Métrailler, Sébastien, Milton, David A., Montgomery, Chad, Morato, Sérgio A. A., Mott, Tami, Muñoz-Alonso, Antonio, Murphy, John, Nguyen, Truong Q., Nilson, Göran, Nogueira, Cristiano, Núñez, Herman, Orlov, Nikolai, Ota, Hidetoshi, Ottenwalder, José, Papenfuss, Theodore, Pasachnik, Stesha, Passos, Paulo, Pauwels, Olivier S. G., Pérez-Buitrago, Néstor, Pérez-Mellado, Valentín, Pianka, Eric R., Pleguezuelos, Juan, Pollock, Caroline, Ponce-Campos, Paulino, Powell, Robert, Pupin, Fabio, Quintero Díaz, Gustavo E., Radder, Raju, Ramer, Jan, Rasmussen, Arne R., Raxworthy, Chris, Reynolds, Robert, Richman, Nadia, Rico, Edmund L., Riservato, Elisa, Rivas, Gilson, da Rocha, Pedro L. B., Rödel, Mark-Oliver, Rodríguez Schettino, Lourdes, Roosenburg, Willem M., Ross, James P., Sadek, Riyad, Sanders, Kate, Santos-Barrera, Georgina, Schleich, Hermann H., Schmidt, Benedikt R., Schmitz, Andreas, Sharifi, Mozafar, Shea, Glenn, Shi, Hai-Tao, Shine, Richard, Sindaco, Roberto, Slimani, Tahar, Somaweera, Ruchira, Spawls, Steve, Stafford, Peter, Stuebing, Rob, Sweet, Sam, Sy, Emerson, Temple, Helen J., Tognelli, Marcelo F., Tolley, Krystal, Tolson, Peter J., Tuniyev, Boris, Tuniyev, Sako, Üzüm, Nazan, van Buurt, Gerard, Van Sluys, Monique, Velasco, Alvaro, Vences, Miguel, Veselý, Milan, Vinke, Sabine, Vinke, Thomas, Vogel, Gernot, Vogrin, Milan, Vogt, Richard C., Wearn, Oliver R., Werner, Yehudah L., Whiting, Martin J., Wiewandt, Thomas, Wilkinson, John, Wilson, Byron, Wren, Sally, Zamin, Tara, Zhou, Kaiya, Zug, George, Böhm, Monika, Collen, Ben, Baillie, Jonathan E. M., Bowles, Philip, Chanson, Janice, Cox, Neil, Hammerson, Geoffrey, Hoffmann, Michael, Livingstone, Suzanne R., Ram, Mala, Rhodin, Anders G. J., Stuart, Simon N., van Dijk, Peter Paul, Young, Bruce E., Afuang, Leticia E., Aghasyan, Aram, García, Andrés, Aguilar, César, Ajtic, Rastko, Akarsu, Ferdi, Alencar, Laura R. V., Allison, Allen, Ananjeva, Natalia, Anderson, Steve, Andrén, Claes, Ariano-Sánchez, Daniel, Arredondo, Juan Camilo, Auliya, Mark, Austin, Christopher C., Avci, Aziz, Baker, Patrick J., Barreto-Lima, André F., Barrio-Amorós, César L., Basu, Dhruvayothi, Bates, Michael F., Batistella, Alexandre, Bauer, Aaron, Bennett, Daniel, Böhme, Wolfgang, Broadley, Don, Brown, Rafe, Burgess, Joseph, Captain, Ashok, Carreira, Santiago, Castañeda, Maria del Rosario, Castro, Fernando, Catenazzi, Alessandro, Cedeño-Vázquez, José R., Chapple, David G., Cheylan, Marc, Cisneros-Heredia, Diego F., Cogalniceanu, Dan, Cogger, Hal, Corti, Claudia, Costa, Gabriel C., Couper, Patrick J., Courtney, Tony, Crnobrnja-Isailovic, Jelka, Crochet, Pierre-André, Crother, Brian, Cruz, Felix, Daltry, Jennifer C., Daniels, R. J. Ranjit, Das, Indraneil, de Silva, Anslem, Diesmos, Arvin C., Dirksen, Lutz, Doan, Tiffany M., Dodd Jr, C. Kenneth, Doody, J. Sean, Dorcas, Michael E., Duarte de Barros Filho, Jose, Egan, Vincent T., El Mouden, El Hassan, Embert, Dirk, Espinoza, Robert E., Fallabrino, Alejandro, Feng, Xie, Feng, Zhao-Jun, Fitzgerald, Lee, Flores-Villela, Oscar, França, Frederico G. R., Frost, Darrell, Gadsden, Hector, Gamble, Tony, Ganesh, S. R., Garcia, Miguel A., García-Pérez, Juan E., Gatus, Joey, Gaulke, Maren, Geniez, Philippe, Georges, Arthur, Gerlach, Justin, Goldberg, Stephen, Gonzalez, Juan-Carlos T., Gower, David J., Grant, Tandora, Greenbaum, Eli, Grieco, Cristina, Guo, Peng, Hamilton, Alison M., Hare, Kelly, Hedges, S. Blair, Heideman, Neil, Hilton-Taylor, Craig, Hitchmough, Rod, Hollingsworth, Bradford, Hutchinson, Mark, Ineich, Ivan, Iverson, John, Jaksic, Fabian M., Jenkins, Richard, Joger, Ulrich, Jose, Reizl, Kaska, Yakup, Kaya, Uğur, Keogh, J. Scott, Köhler, Gunther, Kuchling, Gerald, Kumlutaş, Yusuf, Kwet, Axel, La Marca, Enrique, Lamar, William, Lane, Amanda, Lardner, Bjorn, Latta, Craig, Latta, Gabrielle, Lau, Michael, Lavin, Pablo, Lawson, Dwight, LeBreton, Matthew, Lehr, Edgar, Limpus, Duncan, Lipczynski, Nicola, Lobo, Aaron S., López-Luna, Marco A., Luiselli, Luca, Lukoschek, Vimoksalehi, Lundberg, Mikael, Lymberakis, Petros, Macey, Robert, Magnusson, William E., Mahler, D. Luke, Malhotra, Anita, Mariaux, Jean, Maritz, Bryan, Marques, Otavio A. V., Márquez, Rafael, Martins, Marcio, Masterson, Gavin, Mateo, José A., Mathew, Rosamma, Mathews, Nixon, Mayer, Gregory, McCranie, James R., Measey, G. John, Mendoza-Quijano, Fernando, Menegon, Michele, Métrailler, Sébastien, Milton, David A., Montgomery, Chad, Morato, Sérgio A. A., Mott, Tami, Muñoz-Alonso, Antonio, Murphy, John, Nguyen, Truong Q., Nilson, Göran, Nogueira, Cristiano, Núñez, Herman, Orlov, Nikolai, Ota, Hidetoshi, Ottenwalder, José, Papenfuss, Theodore, Pasachnik, Stesha, Passos, Paulo, Pauwels, Olivier S. G., Pérez-Buitrago, Néstor, Pérez-Mellado, Valentín, Pianka, Eric R., Pleguezuelos, Juan, Pollock, Caroline, Ponce-Campos, Paulino, Powell, Robert, Pupin, Fabio, Quintero Díaz, Gustavo E., Radder, Raju, Ramer, Jan, Rasmussen, Arne R., Raxworthy, Chris, Reynolds, Robert, Richman, Nadia, Rico, Edmund L., Riservato, Elisa, Rivas, Gilson, da Rocha, Pedro L. B., Rödel, Mark-Oliver, Rodríguez Schettino, Lourdes, Roosenburg, Willem M., Ross, James P., Sadek, Riyad, Sanders, Kate, Santos-Barrera, Georgina, Schleich, Hermann H., Schmidt, Benedikt R., Schmitz, Andreas, Sharifi, Mozafar, Shea, Glenn, Shi, Hai-Tao, Shine, Richard, Sindaco, Roberto, Slimani, Tahar, Somaweera, Ruchira, Spawls, Steve, Stafford, Peter, Stuebing, Rob, Sweet, Sam, Sy, Emerson, Temple, Helen J., Tognelli, Marcelo F., Tolley, Krystal, Tolson, Peter J., Tuniyev, Boris, Tuniyev, Sako, Üzüm, Nazan, van Buurt, Gerard, Van Sluys, Monique, Velasco, Alvaro, Vences, Miguel, Veselý, Milan, Vinke, Sabine, Vinke, Thomas, Vogel, Gernot, Vogrin, Milan, Vogt, Richard C., Wearn, Oliver R., Werner, Yehudah L., Whiting, Martin J., Wiewandt, Thomas, Wilkinson, John, Wilson, Byron, Wren, Sally, Zamin, Tara, Zhou, Kaiya, and Zug, George
- Abstract
Effective and targeted conservation action requires detailed information about species, their distribution, systematics and ecology as well as the distribution of threat processes which affect them. Knowledge of reptilian diversity remains surprisingly disparate, and innovative means of gaining rapid insight into the status of reptiles are needed in order to highlight urgent conservation cases and inform environmental policy with appropriate biodiversity information in a timely manner. We present the first ever global analysis of extinction risk in reptiles, based on a random representative sample of 1500 species (16% of all currently known species). To our knowledge, our results provide the first analysis of the global conservation status and distribution patterns of reptiles and the threats affecting them, highlighting conservation priorities and knowledge gaps which need to be addressed urgently to ensure the continued survival of the world’s reptiles. Nearly one in five reptilian species are threatened with extinction, with another one in five species classed as Data Deficient. The proportion of threatened reptile species is highest in freshwater environments, tropical regions and on oceanic islands, while data deficiency was highest in tropical areas, such as Central Africa and Southeast Asia, and among fossorial reptiles. Our results emphasise the need for research attention to be focussed on tropical areas which are experiencing the most dramatic rates of habitat loss, on fossorial reptiles for which there is a chronic lack of data, and on certain taxa such as snakes for which extinction risk may currently be underestimated due to lack of population information. Conservation actions specifically need to mitigate the effects of human-induced habitat loss and harvesting, which are the predominant threats to reptiles.
- Published
- 2013
21. Vocalization ofHylodes meridionalis(Mertens 1927) (Anura, Hylodidae) in Rio Grande do Sul, Brazil, with comments on nocturnal calling in the family Hylodidae
- Author
-
Lingnau, Rodrigo, primary, Zank, Caroline, additional, Colombo, Patrick, additional, and Kwet, Axel, additional
- Published
- 2013
- Full Text
- View/download PDF
22. The conservation status of the world’s reptiles
- Author
-
Böhm, Monika, primary, Collen, Ben, additional, Baillie, Jonathan E.M., additional, Bowles, Philip, additional, Chanson, Janice, additional, Cox, Neil, additional, Hammerson, Geoffrey, additional, Hoffmann, Michael, additional, Livingstone, Suzanne R., additional, Ram, Mala, additional, Rhodin, Anders G.J., additional, Stuart, Simon N., additional, van Dijk, Peter Paul, additional, Young, Bruce E., additional, Afuang, Leticia E., additional, Aghasyan, Aram, additional, García, Andrés, additional, Aguilar, César, additional, Ajtic, Rastko, additional, Akarsu, Ferdi, additional, Alencar, Laura R.V., additional, Allison, Allen, additional, Ananjeva, Natalia, additional, Anderson, Steve, additional, Andrén, Claes, additional, Ariano-Sánchez, Daniel, additional, Arredondo, Juan Camilo, additional, Auliya, Mark, additional, Austin, Christopher C., additional, Avci, Aziz, additional, Baker, Patrick J., additional, Barreto-Lima, André F., additional, Barrio-Amorós, César L., additional, Basu, Dhruvayothi, additional, Bates, Michael F., additional, Batistella, Alexandre, additional, Bauer, Aaron, additional, Bennett, Daniel, additional, Böhme, Wolfgang, additional, Broadley, Don, additional, Brown, Rafe, additional, Burgess, Joseph, additional, Captain, Ashok, additional, Carreira, Santiago, additional, Castañeda, Maria del Rosario, additional, Castro, Fernando, additional, Catenazzi, Alessandro, additional, Cedeño-Vázquez, José R., additional, Chapple, David G., additional, Cheylan, Marc, additional, Cisneros-Heredia, Diego F., additional, Cogalniceanu, Dan, additional, Cogger, Hal, additional, Corti, Claudia, additional, Costa, Gabriel C., additional, Couper, Patrick J., additional, Courtney, Tony, additional, Crnobrnja-Isailovic, Jelka, additional, Crochet, Pierre-André, additional, Crother, Brian, additional, Cruz, Felix, additional, Daltry, Jennifer C., additional, Daniels, R.J. Ranjit, additional, Das, Indraneil, additional, de Silva, Anslem, additional, Diesmos, Arvin C., additional, Dirksen, Lutz, additional, Doan, Tiffany M., additional, Dodd, C. Kenneth, additional, Doody, J. Sean, additional, Dorcas, Michael E., additional, Duarte de Barros Filho, Jose, additional, Egan, Vincent T., additional, El Mouden, El Hassan, additional, Embert, Dirk, additional, Espinoza, Robert E., additional, Fallabrino, Alejandro, additional, Feng, Xie, additional, Feng, Zhao-Jun, additional, Fitzgerald, Lee, additional, Flores-Villela, Oscar, additional, França, Frederico G.R., additional, Frost, Darrell, additional, Gadsden, Hector, additional, Gamble, Tony, additional, Ganesh, S.R., additional, Garcia, Miguel A., additional, García-Pérez, Juan E., additional, Gatus, Joey, additional, Gaulke, Maren, additional, Geniez, Philippe, additional, Georges, Arthur, additional, Gerlach, Justin, additional, Goldberg, Stephen, additional, Gonzalez, Juan-Carlos T., additional, Gower, David J., additional, Grant, Tandora, additional, Greenbaum, Eli, additional, Grieco, Cristina, additional, Guo, Peng, additional, Hamilton, Alison M., additional, Hare, Kelly, additional, Hedges, S. Blair, additional, Heideman, Neil, additional, Hilton-Taylor, Craig, additional, Hitchmough, Rod, additional, Hollingsworth, Bradford, additional, Hutchinson, Mark, additional, Ineich, Ivan, additional, Iverson, John, additional, Jaksic, Fabian M., additional, Jenkins, Richard, additional, Joger, Ulrich, additional, Jose, Reizl, additional, Kaska, Yakup, additional, Kaya, Uğur, additional, Keogh, J. Scott, additional, Köhler, Gunther, additional, Kuchling, Gerald, additional, Kumlutaş, Yusuf, additional, Kwet, Axel, additional, La Marca, Enrique, additional, Lamar, William, additional, Lane, Amanda, additional, Lardner, Bjorn, additional, Latta, Craig, additional, Latta, Gabrielle, additional, Lau, Michael, additional, Lavin, Pablo, additional, Lawson, Dwight, additional, LeBreton, Matthew, additional, Lehr, Edgar, additional, Limpus, Duncan, additional, Lipczynski, Nicola, additional, Lobo, Aaron S., additional, López-Luna, Marco A., additional, Luiselli, Luca, additional, Lukoschek, Vimoksalehi, additional, Lundberg, Mikael, additional, Lymberakis, Petros, additional, Macey, Robert, additional, Magnusson, William E., additional, Mahler, D. Luke, additional, Malhotra, Anita, additional, Mariaux, Jean, additional, Maritz, Bryan, additional, Marques, Otavio A.V., additional, Márquez, Rafael, additional, Martins, Marcio, additional, Masterson, Gavin, additional, Mateo, José A., additional, Mathew, Rosamma, additional, Mathews, Nixon, additional, Mayer, Gregory, additional, McCranie, James R., additional, Measey, G. John, additional, Mendoza-Quijano, Fernando, additional, Menegon, Michele, additional, Métrailler, Sébastien, additional, Milton, David A., additional, Montgomery, Chad, additional, Morato, Sérgio A.A., additional, Mott, Tami, additional, Muñoz-Alonso, Antonio, additional, Murphy, John, additional, Nguyen, Truong Q., additional, Nilson, Göran, additional, Nogueira, Cristiano, additional, Núñez, Herman, additional, Orlov, Nikolai, additional, Ota, Hidetoshi, additional, Ottenwalder, José, additional, Papenfuss, Theodore, additional, Pasachnik, Stesha, additional, Passos, Paulo, additional, Pauwels, Olivier S.G., additional, Pérez-Buitrago, Néstor, additional, Pérez-Mellado, Valentín, additional, Pianka, Eric R., additional, Pleguezuelos, Juan, additional, Pollock, Caroline, additional, Ponce-Campos, Paulino, additional, Powell, Robert, additional, Pupin, Fabio, additional, Quintero Díaz, Gustavo E., additional, Radder, Raju, additional, Ramer, Jan, additional, Rasmussen, Arne R., additional, Raxworthy, Chris, additional, Reynolds, Robert, additional, Richman, Nadia, additional, Rico, Edmund L., additional, Riservato, Elisa, additional, Rivas, Gilson, additional, da Rocha, Pedro L.B., additional, Rödel, Mark-Oliver, additional, Rodríguez Schettino, Lourdes, additional, Roosenburg, Willem M., additional, Ross, James P., additional, Sadek, Riyad, additional, Sanders, Kate, additional, Santos-Barrera, Georgina, additional, Schleich, Hermann H., additional, Schmidt, Benedikt R., additional, Schmitz, Andreas, additional, Sharifi, Mozafar, additional, Shea, Glenn, additional, Shi, Hai-Tao, additional, Shine, Richard, additional, Sindaco, Roberto, additional, Slimani, Tahar, additional, Somaweera, Ruchira, additional, Spawls, Steve, additional, Stafford, Peter, additional, Stuebing, Rob, additional, Sweet, Sam, additional, Sy, Emerson, additional, Temple, Helen J., additional, Tognelli, Marcelo F., additional, Tolley, Krystal, additional, Tolson, Peter J., additional, Tuniyev, Boris, additional, Tuniyev, Sako, additional, Üzüm, Nazan, additional, van Buurt, Gerard, additional, Van Sluys, Monique, additional, Velasco, Alvaro, additional, Vences, Miguel, additional, Veselý, Milan, additional, Vinke, Sabine, additional, Vinke, Thomas, additional, Vogel, Gernot, additional, Vogrin, Milan, additional, Vogt, Richard C., additional, Wearn, Oliver R., additional, Werner, Yehudah L., additional, Whiting, Martin J., additional, Wiewandt, Thomas, additional, Wilkinson, John, additional, Wilson, Byron, additional, Wren, Sally, additional, Zamin, Tara, additional, Zhou, Kaiya, additional, and Zug, George, additional
- Published
- 2013
- Full Text
- View/download PDF
23. Description of the advertisement call of Phasmahyla spectabilis Cruz, Feio & Nascimento, 2008 (Anura: Phyllomedusinae) with comments on its distribution and reproduction
- Author
-
DIAS, IURI RIBEIRO, primary, RÖDDER, DENNIS, additional, WEINSHEIMER, FRANK, additional, KWET, AXEL, additional, and SOLÉ, MIRCO, additional
- Published
- 2011
- Full Text
- View/download PDF
24. Novos registros na distribuição geográfica de anuros na floresta com araucária e considerações sobre suas vocalizações
- Author
-
Conte, Carlos Eduardo, primary, Nomura, Fausto, additional, Machado, Reginaldo Assêncio, additional, Kwet, Axel, additional, Lingnau, Rodrigo, additional, and Rossa-Feres, Denise de Cerqueira, additional
- Published
- 2010
- Full Text
- View/download PDF
25. Translating natural history into geographic space: a macroecological perspective on the North American Slider,Trachemys scripta(Reptilia, Cryptodira, Emydidae)
- Author
-
Rödder, Dennis, primary, Kwet, Axel, additional, and Lötters, Stefan, additional
- Published
- 2009
- Full Text
- View/download PDF
26. A new species ofAdenomera(Amphibia: Anura: Leptodactylidae) from the Atlantic rain forest in Santa Catarina, southern Brazil
- Author
-
Kwet, Axel, primary, Steiner, Josefina, additional, and Zillikens, Anne, additional
- Published
- 2009
- Full Text
- View/download PDF
27. A new species of Trachycephalus (Anura: Hylidae) from the Atlantic Rain Forest in southern Brazil
- Author
-
KWET, AXEL, primary and SOLÉ, MIRCO, additional
- Published
- 2008
- Full Text
- View/download PDF
28. Rediscovery of the holotype of Ditaxodon taeniatus (Peters in Hensel, 1868) (Serpentes: Colubridae) and invalidation of the neotype designation
- Author
-
BÉRNILS, RENATO S., primary, KUCHARZEWSKI, CHRISTOPH, additional, DE MOURA-LEITE, JULIO CESAR, additional, and KWET, AXEL, additional
- Published
- 2008
- Full Text
- View/download PDF
29. Bioacoustic variation in the genusAdenomera in southern Brazil, with revalidation ofLeptodactylus nanus Müller, 1922 (Anura, Leptodactylidae)
- Author
-
Kwet, Axel, primary
- Published
- 2007
- Full Text
- View/download PDF
30. Wilhelm Ehrhardt and an evaluation of his amphibians and reptiles held in the Herpetological Collection of the Museum für Naturkunde, Berlin
- Author
-
Gutsche, Alexander, primary, Kwet, Axel, additional, Kucharzewski, Christoph, additional, Lingnau, Rodrigo, additional, and Günther, Rainer, additional
- Published
- 2007
- Full Text
- View/download PDF
31. Lack of bufadienolides in the skin secretion of red bellied toads, Melanophryniscus spp. (Anura, Bufonidae), from Uruguay
- Author
-
Mebs, Dietrich, primary, Wagner, Moritz G., additional, Pogoda, Werner, additional, Maneyro, Raul, additional, Kwet, Axel, additional, and Kauert, Gerold, additional
- Published
- 2007
- Full Text
- View/download PDF
32. Advertisement call and habitat of Vitreorana uranoscopa (Anura: Centrolenidae) in Brazil.
- Author
-
HAGA, ISABELLE AQUEMI, DE ANDRADE, FELIPE SILVA, TOSCANO, NAYARA PAGANINI, KWET, AXEL, and GIARETTA, ARIOVALDO ANTONIO
- Abstract
The article discusses a study conducted to find the population density of Vitreorana uranoscopa, a frog species, and the reasons behind variation in the population density. The study found air pollution as the main reason for decline of this species in Atlantic forest. It mentions that some species including eurygnatha and uranoscopa are declining in southeastern Brazil.
- Published
- 2014
33. First record of Chaunus achavali (Anura, Bufonidae) from Rio Grande do Sul, Brazil, with a key for the identification of the species in the Chaunus marinus group
- Author
-
Kwet, Axel, primary, Di-Bernardo, Marcos, additional, and Maneyro, Raúl, additional
- Published
- 2006
- Full Text
- View/download PDF
34. SPATIAL, SEASONAL AND INTRAPOPULATIONAL VARIATION IN THE DIET OF PSEUDIS CARDOSOI (ANURA: HYLIDAE) FROM THE ARAUCÁRIA PLATEAU OF RIO GRANDE DO SUL, BRAZIL
- Author
-
Miranda, Tatiana, primary, Ebner, Martin, additional, Solé, Mirco, additional, and Kwet, Axel, additional
- Published
- 2006
- Full Text
- View/download PDF
35. Marcos Di Bernardo (1963-2006)
- Author
-
Kwet, Axel, primary
- Published
- 2006
- Full Text
- View/download PDF
36. Stomach-flushing for diet analysis in anurans: an improved protocol evaluated in a case study inAraucariaforests, southern Brazil*
- Author
-
Solé, Mirco, primary, Beckmann, Olaf, additional, Pelz, Birgit, additional, Kwet, Axel, additional, and Engels, Wolf, additional
- Published
- 2005
- Full Text
- View/download PDF
37. Reprodução de Pseudis minuta (Anura, Hylidae) no sul do Brasil
- Author
-
Melchiors, Janaine, primary, Di-Bernardo, Marcos, additional, Pontes, Glaucia Maria Funk, additional, Oliveira, Roberto Baptista de, additional, Solé, Mirco, additional, and Kwet, Axel, additional
- Published
- 2004
- Full Text
- View/download PDF
38. Frösche im brasilianischen Araukarienwald: Frösche im brasilianischen Araukarienwald
- Author
-
Kwet, Axel, primary
- Published
- 2004
- Full Text
- View/download PDF
39. O status taxonômico de Hyla cochranae Mertens e recaracterização de Aplastodiscus A. Lutz (Anura, Hylidae)
- Author
-
Garcia, Paulo C.A., primary, Caramaschi, Ulisses, additional, and Kwet, Axel, additional
- Published
- 2001
- Full Text
- View/download PDF
40. Proceratophrys bigibbosaSpecies Group (Anura: Leptodactylidae), with Description of a New Species
- Author
-
Kwet, Axel, primary and Faivovich, Julian, additional
- Published
- 2001
- Full Text
- View/download PDF
41. The genus Pseudis (Anura: Pseudidae) in Rio Grande do Sul, southern Brazil, with description of a new species
- Author
-
Kwet, Axel, primary
- Published
- 2000
- Full Text
- View/download PDF
42. Elachistocleis erythrogaster, a New Microhylid Species from Rio Grande do Sul, Brazil
- Author
-
Kwet, Axel, primary and Di-Bernardo, Marcos, additional
- Published
- 1998
- Full Text
- View/download PDF
43. Vocalization of Hylodes meridionalis (Mertens 1927) (Anura, Hylodidae) in Rio Grande do Sul, Brazil, with comments on nocturnal calling in the family Hylodidae.
- Author
-
Lingnau, Rodrigo, Zank, Caroline, Colombo, Patrick, and Kwet, Axel
- Subjects
LEPTODACTYLIDAE ,ANIMAL sound production ,SPECIES diversity ,BIOTIC communities ,TERRITORIALITY (Zoology) - Abstract
We describe the advertisement and territorial calls ofHylodes meridionalisfor the first time and provide observations on nocturnal calling activity for this species. The advertisement call has 36–82 harmonic notes, with duration of 2.71–5.69 s and dominant frequency on the third harmonic. Advertisement calls are separated by large intervals varying from 18.7 to 44.7 s. The territorial call has 1–3 notes, with duration of 0.039–0.567 seconds, and dominant frequency also on the third harmonic. Territorial calls are emitted at a much higher repetition rate than the advertisement call, with intervals of 1.1–1.6 s between each call. Frogs of the genusHylodesare known to call mainly during the day, but forH. meridionalisnocturnal calling was observed on various occasions, and could occur regularly until two hours after sunset, or sporadically along the night. Descrevemos os cantos de anúncio e territorial deHylodes meridionalispela primeira vez e fornecemos observações sobre a atividade noturna de vocalização para esta espécie. O canto de anúncio tem 36–82 notas harmônicas, com duração de 2,71–5,69 segundos e frequência dominante no terceiro harmônico. Há grandes intervalos entre os cantos de anúncio, de 18,7–44,7 segundos. O canto territorial tem 1–3 notas, com duração de 0,039–0,567 segundos, e frequência dominante também no terceiro harmônico. Cantos territoriais são emitidos a uma taxa de repetição muito mais elevado do que o canto de anúncio, com intervalos de 1,1–1,6 segundos entre cada canto. As espécies do gêneroHylodessão conhecidas por vocalizar principalmente durante o dia, mas machos deH. meridionalisforam observados em atividade de vocalização noturna em várias ocasiões, sendo que podem vocalizar regularmente até duas horas após o pôr do sol, ou esporadicamente ao longo da noite. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
44. Polydactyly and polymely in two populations of Rana temporaria and Pelophylax esculentus (Anura, Ranidae) in southern Germany.
- Author
-
MACHADOI, CLAITON, KWET, AXEL, and SCHLUTER, ANDREAS
- Subjects
- *
ABNORMALITIES in animals , *ANURA , *AMPHIBIAN anatomy , *EDIBLE frog , *RANA temporaria , *POLYDACTYLY , *ANIMAL species , *FORELIMB - Abstract
The article presents a report on several cases of anomalies from the anuran population of Pelophylax (P.) esculentus and Rana (R.) temporaria in southern Germany in 2010. The examination of P. esculentus revealed that 13 individuals showed anomalies, such as polydactyly or malformations of the hand. Polydactyle specimens indicated variation in several fingers with one to four more toes or one more finger on the forelimbs. Polydactyly or malformations of extremities were discovered among the samples of R. temporaria with one case of polymely.
- Published
- 2010
45. A new species of Adenomera (Amphibia: Anura: Leptodactylidae) from the Atlantic rain forest in Santa Catarina, southern Brazil.
- Author
-
Kwet, Axel, Steiner, Josefina, and Zillikens, Anne
- Subjects
- *
ANURA , *AMPHIBIANS , *RAIN forests - Abstract
As part of the remarkable biodiversity of anurans in the southern range of the Brazilian Mata Atlantica, Adenomera engelsi sp. nov. is described here as a new taxon occurring on the island of Santa Catarina and adjacent coastal mainland. This litter-inhabiting frog is restricted to the Atlantic rain forest biome, living in primary and secondary woods and semi-open areas from sea level to about 900 m a.s.l., partly in sympatry with its congener A. araucaria. Both species are also referred to the Leptodactylus marmoratus group. Adenomera engelsi sp. nov. is a medium-sized member of the genus (snout-vent length 20.9-22.7 mm in males), characterized by a brown dorsal coloration with a maculated pattern of variable dark spots and blotches and a unique advertisement call, consisting of single, unpulsed notes with duration of 95-160 ms, dominant frequency between 3500 and 4300 Hz, and note repetition rates of 10-24 notes/min. Esta descrita, como parte da enorme biodiversidade de anuros na regiao sul da Mata Atlantica brasileira, Adenomera engelsi sp. nov. que ocorre na Ilha de Santa Catarina e no litoral adjacente. A especie esta restrita ao bioma da Mata Atlantica, onde vive no folhico em mata primaria, secundaria e areas semi-abertas, desde o nivel do mar ate 900 m, parcialmente em simpatria com A. araucaria. Ambas as especies tambem sao atribuidas ao grupo Leptodactylus marmoratus. Adenomera engelsi sp. nov., de tamanho medio dentro do genero (SVL 20.9-22.7 mm em machos), e caraterizada pela coloracao dorsal marrom, com manchas escuras de tamanho e forma variavel e um canto de anuncio distinto, que consiste de notas unicas e sem pulsos de 95-160 ms com frequencia dominante entre 3500-4300 Hz e taxa de repeticao de 10-24 notas por minuto. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
46. Description of the advertisement call of Cycloramphus bolitoglossus (Werner, 1897), with comments on other species in the genus from Santa Catarina, south Brazil (Amphibia, Cycloramphidae).
- Author
-
Lingnau, Rodrigo, Solé, Mirco, Dallacorte, Fabiana, and Kwet, Axel
- Subjects
FROGS ,AMPHIBIANS ,COLLECTORS & collecting - Abstract
Species of the genus Cycloramphus Tschudi 1838, occurring in the Atlantic Forest of Brazil are poorly known frogs which are generally under-represented in herpetological collections. For the first time, we provide the description of the advertisement call of C. bolitoglossus. The call consists of 16-18 harmonic notes emitted at intervals of 0.15-0.25 s. Call duration is from 3.95-4.48 s., and duration of the first note ranges from 0.21-0.28 s., whereas duration of each remaining note ranges from 0.07-0.12 s. Dominant frequency is 1.32-2.44 kHz. In the herpetological collections of the Natural History Museums in Berlin, Hamburg, München, and Stuttgart, we found valuable historical material of Cycloramphus collected by the German collector W. Ehrhardt in northeastern Santa Catarina state. This material included few specimens of C. bolitoglossus and C. diringshofeni, C. izecksohni which was also observed during our field work and C. cf. asper. Two syntypes of Niedenia spinulifer Ahl (a junior synonym of C. asper Werner) which were considered to be lost were rediscovered in the Berlin collection. We also report the first record of a species in this genus which is preliminary referred to C. cf. catarinensis from the Atlantic island Ilha de Santa Catarina. [ABSTRACT FROM AUTHOR]
- Published
- 2008
47. Photographing Reptiles and Amphibians.
- Author
-
Kwet, Axel
- Abstract
The article focuses on reptile and amphibian photography. A single-lens reflex camera would be the usual equipment needed by wildlife photographers although range-finder cameras could also produce good results. Aside from equipment, photographers need to possess a certain understanding of the theory of photography and a lot of patience in order to successfully photograph animals. The use of digital cameras provides a quick and inexpensive way to gain experience since it does not need film changing every 36 shots.
- Published
- 2008
48. Bioacoustic variation in the genus Adenomera in southern Brazil, with revalidation of Leptodactylus nanus Müller, 1922 (Anura, Leptodactylidae).
- Author
-
Kwet, Axel
- Published
- 2007
- Full Text
- View/download PDF
49. Stomach-flushing for diet analysis in anurans: an improved protocol evaluated in a case study in Araucaria forests, southern Brazil*.
- Author
-
Solé, Mirco, Beckmann, Olaf, Pelz, Birgit, Kwet, Axel, and Engels, Wolf
- Subjects
ANURA ,VERTEBRATES ,ANIMALS - Abstract
Stomach-flushing is a gentle treatment in analysing the diet of vertebrates. We applied this method in the study of seasonal nutrition of anurans of 15 species at an Araucaria forest habitat on the Serra Geral of Rio Grande do Sul, Brazil. Over 500 frogs and toads of different body size were handled in order to evaluate an improved protocol without narcosis using soft infusion tubes in order to avoid negative effects of the flushing procedure. The specimens were treated soon after capture and then returned to the sampling sites. Our results are discussed with reference to the few studies on stomach flushing in amphibians. The improved technique is recommended to avoid killing of numerous animals for nutritional studies, in particular because of the worldwide threatening of amphibian populations. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
50. Elachistocleis erythrogaster, a New Microhylid Speciesfrom Rio Grande do Sul, Brazil.
- Author
-
Kwet, Axel and Di-Bernardo, Marcos
- Subjects
- *
MICROHYLIDAE , *TADPOLES , *ANIMAL sound production - Abstract
Elachistocleis erythrogaster spec. nov.is described from São Francisco de Paula on the mountains of the SerraGeral, Rio Grande do Sul, Brazil. It is about 30 mm in size with deep blackthroat, black and blue marbled sides and bright red-orange venter. Egg layingand tadpoles are described. The new microhylid inhabits open grassland. Itsnatural history is briefly described including sonagrams of the advertisementcall. The characters discriminating the new frog from the sympatrically occurring E. ovalis are discussed. Elachistocleis erythrogaster spec. nov.é descrita com base em exemplares procedentes do munic¡pio deSão Francisco de Paula, situado na Serra Geral, estado do Rio Grandedo Sul, Brasil. Tem cerca de 30mm de comprimento, apresenta garganta negra,lados marmoreados de azul e preto e ventre vermelho-alaranjado. Desovas egirinos são descritos. A nova espécie habita formaçõescampestres. Aspectos da hisória natural são brevemente apresentados,incluindo sonogramas do canto nupcial. Os caracteres que diferenciam a novaespécie da espécie sympÝtrica, E. ovalis, sãodiscutidos. [ABSTRACT FROM AUTHOR]
- Published
- 1998
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.