Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection.
The Neotropics shelter the highest number of frog species on Earth and is also one of the regions where anurans are most threatened. Nonetheless, few data are available to assess the population status of Neotropical anurans. We studied three populations (Tresor, Favard, and Nouragues) of the poison...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2012-06-01
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| Series: | Phyllomedusa: Journal of Herpetology |
| Subjects: | |
| Online Access: | https://www.revistas.usp.br/phyllo/article/view/46205 |
| _version_ | 1818871247854895104 |
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| author | Elodie A. Courtois Kevin Pineau Benoit Villette Dirk S. Schmeller Philippe Gaucher |
| author_facet | Elodie A. Courtois Kevin Pineau Benoit Villette Dirk S. Schmeller Philippe Gaucher |
| author_sort | Elodie A. Courtois |
| collection | DOAJ |
| description | The Neotropics shelter the highest number of frog species on Earth and is also one of the regions where anurans are
most threatened. Nonetheless, few data are available to assess the population status of Neotropical anurans. We studied three populations (Tresor, Favard, and Nouragues) of the poison frog, Dendrobates tinctorius, in French Guiana and used Capture-Mark-Recapture (CMR) to make robust estimations of the species’ density at these three sites. In addition, we assessed the prevalence of the pathogen fungal Batrachochytrium dendrobatidis (Bd) in two populations (Favard and Nouragues). Based on the CMR protocol, the densities of frogs was 8.43 individuals/100 m² at Favard, 4.28 individuals/100 m² at Nouragues and from 2.30 to 4.67 individuals/100 m² at Tresor (depending on the CMR model used); these data provide a baseline for population densities of D. tinctorius in French Guiana, against which future population estimates can be compared. We found that 25 encounter events may be sufficient for stable population estimates, if the captures are concentrated in time. Bd was detected at both sites (Favard 7/152; Nouragues 3/18). |
| first_indexed | 2024-12-19T12:19:53Z |
| format | Article |
| id | doaj.art-7d12f95d9e184e438200735be547f275 |
| institution | Directory Open Access Journal |
| issn | 1519-1397 2316-9079 |
| language | English |
| last_indexed | 2024-12-19T12:19:53Z |
| publishDate | 2012-06-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Phyllomedusa: Journal of Herpetology |
| spelling | doaj.art-7d12f95d9e184e438200735be547f2752022-12-21T20:21:49ZengUniversidade de São PauloPhyllomedusa: Journal of Herpetology1519-13972316-90792012-06-01111Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection.Elodie A. CourtoisKevin PineauBenoit VilletteDirk S. SchmellerPhilippe GaucherThe Neotropics shelter the highest number of frog species on Earth and is also one of the regions where anurans are most threatened. Nonetheless, few data are available to assess the population status of Neotropical anurans. We studied three populations (Tresor, Favard, and Nouragues) of the poison frog, Dendrobates tinctorius, in French Guiana and used Capture-Mark-Recapture (CMR) to make robust estimations of the species’ density at these three sites. In addition, we assessed the prevalence of the pathogen fungal Batrachochytrium dendrobatidis (Bd) in two populations (Favard and Nouragues). Based on the CMR protocol, the densities of frogs was 8.43 individuals/100 m² at Favard, 4.28 individuals/100 m² at Nouragues and from 2.30 to 4.67 individuals/100 m² at Tresor (depending on the CMR model used); these data provide a baseline for population densities of D. tinctorius in French Guiana, against which future population estimates can be compared. We found that 25 encounter events may be sufficient for stable population estimates, if the captures are concentrated in time. Bd was detected at both sites (Favard 7/152; Nouragues 3/18).https://www.revistas.usp.br/phyllo/article/view/46205amphibian conservationBatrachochytrium dendrobatidisCMRNeotropicspicture-identification. |
| spellingShingle | Elodie A. Courtois Kevin Pineau Benoit Villette Dirk S. Schmeller Philippe Gaucher Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection. Phyllomedusa: Journal of Herpetology amphibian conservation Batrachochytrium dendrobatidis CMR Neotropics picture-identification. |
| title | Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection. |
| title_full | Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection. |
| title_fullStr | Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection. |
| title_full_unstemmed | Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection. |
| title_short | Population estimates of Dendrobates tinctorius (Anura: Dendrobatidae) at three sites in French Guiana and first record of chytrid infection. |
| title_sort | population estimates of dendrobates tinctorius anura dendrobatidae at three sites in french guiana and first record of chytrid infection |
| topic | amphibian conservation Batrachochytrium dendrobatidis CMR Neotropics picture-identification. |
| url | https://www.revistas.usp.br/phyllo/article/view/46205 |
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