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Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges

Freshwater ecosystems in the tropics host a diverse endemic fauna including freshwater crabs, but the rapid loss and deterioration of habitat means that many species are now under imminent threat. Studies on freshwater fish and amphibians suggest a third to half of the species in some tropical fresh...

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Autor principal: Cumberlidge, Neil
Outros Autores: Ng, Peter K.L., Yeo, Darren C.J., Magalhães, Célio, Campos, Martha R., Álvarez, Fernando, Naruse, Tohru, Daniels, Savel Regan, Esser, Lara J., Attipoe, Felix Y.K., Clotilde-Bâ, France Lyse, Darwall, William Robert Thomas, McIvor, Anna L., Baillie, Jonathan E.M., Collen, Ben, Ram, Mala
Grau: Artigo
Idioma: English
Publicado em: Biological Conservation 2020
Assuntos:
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/18422
id oai:repositorio:1-18422
recordtype dspace
spelling oai:repositorio:1-18422 Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges Cumberlidge, Neil Ng, Peter K.L. Yeo, Darren C.J. Magalhães, Célio Campos, Martha R. Álvarez, Fernando Naruse, Tohru Daniels, Savel Regan Esser, Lara J. Attipoe, Felix Y.K. Clotilde-Bâ, France Lyse Darwall, William Robert Thomas McIvor, Anna L. Baillie, Jonathan E.M. Collen, Ben Ram, Mala Biodiversity Crab Deforestation Endangered Species Extinction Risk Red List Risk Assessment Species Conservations Africa Asia Australasia Eurasia Europe Amphibia Anthozoa Decapoda (crustacea) Invertebrata Potamoidea Freshwater ecosystems in the tropics host a diverse endemic fauna including freshwater crabs, but the rapid loss and deterioration of habitat means that many species are now under imminent threat. Studies on freshwater fish and amphibians suggest a third to half of the species in some tropical freshwaters is either extinct or endangered, but the status of the freshwater crabs is not known. Freshwater crabs, with 1280 species, represent one-fifth of all the World's brachyurans. We therefore undertook a comprehensive IUCN Red List assessment of the freshwater crabs, which was the first time that such a study had been attempted on a global scale for any group of freshwater invertebrates. The conservation status of all known species from the Americas, Africa, Europe, Asia, and Australasia revealed unexpectedly high threat levels. Here we show that about one-sixth of all freshwater crab species have an elevated risk of extinction, only one-third are not at-risk, and although none are actually extinct, almost half are too poorly known to assess. Out of 122 countries that have populations of freshwater crabs, 43 have species in need of protection. The majority of threatened species are restricted-range semi-terrestrial endemics living in habitats subjected to deforestation, alteration of drainage patterns, and pollution. This is illustrated with a case study of one such species found in Singapore. This underlines the need to prioritize and develop conservation measures before species decline to levels from which they cannot recover. The proportion of freshwater crabs threatened with extinction is equal to that of reef-building corals, and exceeds that of all other groups that have been assessed except for amphibians. These results represent a baseline that can be used to design strategies to save the World's threatened freshwater crab species. © 2009 Elsevier Ltd. All rights reserved. 2020-06-15T21:54:48Z 2020-06-15T21:54:48Z 2009 Artigo https://repositorio.inpa.gov.br/handle/1/18422 10.1016/j.biocon.2009.02.038 en Volume 142, Número 8, Pags. 1665-1673 Restrito Biological Conservation
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Biodiversity
Crab
Deforestation
Endangered Species
Extinction Risk
Red List
Risk Assessment
Species Conservations
Africa
Asia
Australasia
Eurasia
Europe
Amphibia
Anthozoa
Decapoda (crustacea)
Invertebrata
Potamoidea
spellingShingle Biodiversity
Crab
Deforestation
Endangered Species
Extinction Risk
Red List
Risk Assessment
Species Conservations
Africa
Asia
Australasia
Eurasia
Europe
Amphibia
Anthozoa
Decapoda (crustacea)
Invertebrata
Potamoidea
Cumberlidge, Neil
Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges
topic_facet Biodiversity
Crab
Deforestation
Endangered Species
Extinction Risk
Red List
Risk Assessment
Species Conservations
Africa
Asia
Australasia
Eurasia
Europe
Amphibia
Anthozoa
Decapoda (crustacea)
Invertebrata
Potamoidea
description Freshwater ecosystems in the tropics host a diverse endemic fauna including freshwater crabs, but the rapid loss and deterioration of habitat means that many species are now under imminent threat. Studies on freshwater fish and amphibians suggest a third to half of the species in some tropical freshwaters is either extinct or endangered, but the status of the freshwater crabs is not known. Freshwater crabs, with 1280 species, represent one-fifth of all the World's brachyurans. We therefore undertook a comprehensive IUCN Red List assessment of the freshwater crabs, which was the first time that such a study had been attempted on a global scale for any group of freshwater invertebrates. The conservation status of all known species from the Americas, Africa, Europe, Asia, and Australasia revealed unexpectedly high threat levels. Here we show that about one-sixth of all freshwater crab species have an elevated risk of extinction, only one-third are not at-risk, and although none are actually extinct, almost half are too poorly known to assess. Out of 122 countries that have populations of freshwater crabs, 43 have species in need of protection. The majority of threatened species are restricted-range semi-terrestrial endemics living in habitats subjected to deforestation, alteration of drainage patterns, and pollution. This is illustrated with a case study of one such species found in Singapore. This underlines the need to prioritize and develop conservation measures before species decline to levels from which they cannot recover. The proportion of freshwater crabs threatened with extinction is equal to that of reef-building corals, and exceeds that of all other groups that have been assessed except for amphibians. These results represent a baseline that can be used to design strategies to save the World's threatened freshwater crab species. © 2009 Elsevier Ltd. All rights reserved.
format Artigo
author Cumberlidge, Neil
author2 Ng, Peter K.L.
Yeo, Darren C.J.
Magalhães, Célio
Campos, Martha R.
Álvarez, Fernando
Naruse, Tohru
Daniels, Savel Regan
Esser, Lara J.
Attipoe, Felix Y.K.
Clotilde-Bâ, France Lyse
Darwall, William Robert Thomas
McIvor, Anna L.
Baillie, Jonathan E.M.
Collen, Ben
Ram, Mala
author2Str Ng, Peter K.L.
Yeo, Darren C.J.
Magalhães, Célio
Campos, Martha R.
Álvarez, Fernando
Naruse, Tohru
Daniels, Savel Regan
Esser, Lara J.
Attipoe, Felix Y.K.
Clotilde-Bâ, France Lyse
Darwall, William Robert Thomas
McIvor, Anna L.
Baillie, Jonathan E.M.
Collen, Ben
Ram, Mala
title Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges
title_short Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges
title_full Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges
title_fullStr Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges
title_full_unstemmed Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges
title_sort freshwater crabs and the biodiversity crisis: importance, threats, status, and conservation challenges
publisher Biological Conservation
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/18422
_version_ 1787143937452933120
score 11.755432