Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus
Direct counts of crocodilians are rarely feasible and it is difficult to meet the assumptions of mark-recapture methods for most species in most habitats. Catch-out experiments are also usually not logistically or morally justifiable because it would be necessary to destroy the habitat in order to b...
| Autor principal: | Campos, Zilca M.S. |
|---|---|
| Outros Autores: | Magnusson, William Ernest |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
PLoS ONE
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/14683 |
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oai:repositorio:1-14683 |
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oai:repositorio:1-14683 Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus Campos, Zilca M.S. Magnusson, William Ernest Biomass Carnivore Clinical Crocodilian Drought Female Habitat Human Mammal Mark Recapture River Season Tropical Rain Forest Animals Biomass Brasil Population Density Rain Alligators And Crocodiles Animalss Biomass Brasil Population Density Rain Direct counts of crocodilians are rarely feasible and it is difficult to meet the assumptions of mark-recapture methods for most species in most habitats. Catch-out experiments are also usually not logistically or morally justifiable because it would be necessary to destroy the habitat in order to be confident that most individuals had been captured. We took advantage of the draining and filling of a large area of flooded forest during the building of the Santo Antônio dam on the Madeira River to obtain accurate estimates of the density and biomass of Paleosuchus palpebrosus. The density, 28.4 non-hatchling individuals per km2 , is one of the highest reported for any crocodilian, except for species that are temporarily concentrated in small areas during dry-season drought. The biomass estimate of 63.15 kg∗km-2 is higher than that for most or even all mammalian carnivores in tropical forest. P. palpebrosus may be one of the World?s most abundant crocodilians. © 2016 Campos, Magnusson. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2020-04-24T17:00:16Z 2020-04-24T17:00:16Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/14683 10.1371/journal.pone.0156406 en Volume 11, Número 5 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf PLoS ONE |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Biomass Carnivore Clinical Crocodilian Drought Female Habitat Human Mammal Mark Recapture River Season Tropical Rain Forest Animals Biomass Brasil Population Density Rain Alligators And Crocodiles Animalss Biomass Brasil Population Density Rain |
| spellingShingle |
Biomass Carnivore Clinical Crocodilian Drought Female Habitat Human Mammal Mark Recapture River Season Tropical Rain Forest Animals Biomass Brasil Population Density Rain Alligators And Crocodiles Animalss Biomass Brasil Population Density Rain Campos, Zilca M.S. Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| topic_facet |
Biomass Carnivore Clinical Crocodilian Drought Female Habitat Human Mammal Mark Recapture River Season Tropical Rain Forest Animals Biomass Brasil Population Density Rain Alligators And Crocodiles Animalss Biomass Brasil Population Density Rain |
| description |
Direct counts of crocodilians are rarely feasible and it is difficult to meet the assumptions of mark-recapture methods for most species in most habitats. Catch-out experiments are also usually not logistically or morally justifiable because it would be necessary to destroy the habitat in order to be confident that most individuals had been captured. We took advantage of the draining and filling of a large area of flooded forest during the building of the Santo Antônio dam on the Madeira River to obtain accurate estimates of the density and biomass of Paleosuchus palpebrosus. The density, 28.4 non-hatchling individuals per km2 , is one of the highest reported for any crocodilian, except for species that are temporarily concentrated in small areas during dry-season drought. The biomass estimate of 63.15 kg∗km-2 is higher than that for most or even all mammalian carnivores in tropical forest. P. palpebrosus may be one of the World?s most abundant crocodilians. © 2016 Campos, Magnusson. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| format |
Artigo |
| author |
Campos, Zilca M.S. |
| author2 |
Magnusson, William Ernest |
| author2Str |
Magnusson, William Ernest |
| title |
Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| title_short |
Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| title_full |
Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| title_fullStr |
Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| title_full_unstemmed |
Density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| title_sort |
density and biomass estimates by removal for an amazonian crocodilian, paleosuchus palpebrosus |
| publisher |
PLoS ONE |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/14683 |
| _version_ |
1787141469191012352 |
| score |
11.755432 |