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| Format: | Artículo científico |
| Sprache: | en |
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Universidad de Costa Rica
2018
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=44959350026 https://www.redalyc.org/journal/449/44959350026/ https://www.redalyc.org/journal/449/44959350026/html/ https://www.redalyc.org/journal/449/44959350026/44959350026.epub https://www.redalyc.org/journal/449/44959350026/movil |
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Inhaltsangabe:
- Geographical context of forgotten amphibians: Colombian “Data Deficient species” sensu IUCN Cristian Román-Palacios Alejandro Valencia-Zuleta Biología Andes Anura MaxEnt Caudata conservation Whereas more than 10 % of global amphibian richness is known to occur in Colombia, almost 16 % of these species are currently classified as Data Deficient according to the IUCN. These estimates suggest that the available data for a large portion of amphibians occurring in Colombia is insufficient to assess extinction risk. Here we aim to (1) review the available information on the distribution of the Colombian Data Deficient (DD hereafter) amphibians, (2) analyze their geographic distribution, and (3) evaluate the relationship between anthropogenic impact and their current conservation status. For this, we first compiled geographical records for the DD amphibian species using primary sources. Geographical records were obtained mainly from taxonomic descriptions and non-systematic surveys. We then estimated the geographical range and inferred the potential distribution for each species using letsR and MaxEnt, respectively. We quantified the human footprint for each species and tested the relationship between spatial distribution and anthropogenic change across populations. Analyses are here based on 128 of the 129 DD amphibian species that occur in Colombia. We found that most of these species were recently described and have small geographic ranges. A large proportion of these DD amphibians inhabit the Colombian Andes, and their populations have been strongly affected by human activities. Overall, the spatial clustering suggests that many of these species have faced similar environmental and anthropogenic pressures that have contributed to their rareness. We also suggest that the conservation status for several of the analyzed DD amphibians should be changed to account for the threats they face. 2018 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44959350026 https://www.redalyc.org/journal/449/44959350026/ https://www.redalyc.org/journal/449/44959350026/html/ https://www.redalyc.org/journal/449/44959350026/44959350026.epub https://www.redalyc.org/journal/449/44959350026/movil 10.15517/rbt.v66i3.30818 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3 Vol.66