In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.

Worldwide, one in every three species of amphibian is endangered, 39 species have gone extinct in the last 500 years and another 130 species are suspected to have gone extinct in recent decades. Of the amphibians, salamanders have the highest portion of their species in one of the risk categories, e...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Adriana Sandoval-Comte, Eduardo Pineda, José L Aguilar-López
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6846f2d94b1344328abd549f12fe1656
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6846f2d94b1344328abd549f12fe1656
record_format	dspace
spelling	oai:doaj.org-article:6846f2d94b1344328abd549f12fe16562021-11-18T07:23:29ZIn search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.1932-620310.1371/journal.pone.0034023https://doaj.org/article/6846f2d94b1344328abd549f12fe16562012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22485155/?tool=EBIhttps://doaj.org/toc/1932-6203Worldwide, one in every three species of amphibian is endangered, 39 species have gone extinct in the last 500 years and another 130 species are suspected to have gone extinct in recent decades. Of the amphibians, salamanders have the highest portion of their species in one of the risk categories, even higher than the frogs. To date there have been few studies that have used recent field data to examine the status of populations of endangered salamanders. In this study we evaluate the current situation of two tiny salamanders, Parvimolge townsendi and Thorius pennatulus, both of which are distributed at intermediate elevations in the mountains of the northern Neotropics and are considered to be critically endangered; the first has been proposed as possibly extinct. By carrying out exhaustive surveys in both historical and potentially suitable sites for these two species, we evaluated their abundance and the characteristics of their habitats, and we estimated their potential geographic distribution. We visited 22 sites, investing 672 person-hours of sampling effort in the surveys, and found 201 P. townsendi salamanders in 11 sites and only 13 T. pennatulus salamanders in 5 sites. Both species were preferentially found in cloud forest fragments that were well conserved or only moderately transformed, and some of the salamanders were found in shade coffee plantations. The potential distribution area of both species is markedly fragmented and we estimate that it has decreased by more than 48%. The results of this study highlight the importance of carrying out exhaustive, systematic field surveys to obtain accurate information about the current situation of critically endangered species, and help us better understand the crisis that amphibians are facing worldwide.Adriana Sandoval-ComteEduardo PinedaJosé L Aguilar-LópezPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e34023 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Adriana Sandoval-Comte Eduardo Pineda José L Aguilar-López In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.
description	Worldwide, one in every three species of amphibian is endangered, 39 species have gone extinct in the last 500 years and another 130 species are suspected to have gone extinct in recent decades. Of the amphibians, salamanders have the highest portion of their species in one of the risk categories, even higher than the frogs. To date there have been few studies that have used recent field data to examine the status of populations of endangered salamanders. In this study we evaluate the current situation of two tiny salamanders, Parvimolge townsendi and Thorius pennatulus, both of which are distributed at intermediate elevations in the mountains of the northern Neotropics and are considered to be critically endangered; the first has been proposed as possibly extinct. By carrying out exhaustive surveys in both historical and potentially suitable sites for these two species, we evaluated their abundance and the characteristics of their habitats, and we estimated their potential geographic distribution. We visited 22 sites, investing 672 person-hours of sampling effort in the surveys, and found 201 P. townsendi salamanders in 11 sites and only 13 T. pennatulus salamanders in 5 sites. Both species were preferentially found in cloud forest fragments that were well conserved or only moderately transformed, and some of the salamanders were found in shade coffee plantations. The potential distribution area of both species is markedly fragmented and we estimate that it has decreased by more than 48%. The results of this study highlight the importance of carrying out exhaustive, systematic field surveys to obtain accurate information about the current situation of critically endangered species, and help us better understand the crisis that amphibians are facing worldwide.
format	article
author	Adriana Sandoval-Comte Eduardo Pineda José L Aguilar-López
author_facet	Adriana Sandoval-Comte Eduardo Pineda José L Aguilar-López
author_sort	Adriana Sandoval-Comte
title	In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.
title_short	In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.
title_full	In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.
title_fullStr	In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.
title_full_unstemmed	In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.
title_sort	in search of critically endangered species: the current situation of two tiny salamander species in the neotropical mountains of mexico.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/6846f2d94b1344328abd549f12fe1656
work_keys_str_mv	AT adrianasandovalcomte insearchofcriticallyendangeredspeciesthecurrentsituationoftwotinysalamanderspeciesintheneotropicalmountainsofmexico AT eduardopineda insearchofcriticallyendangeredspeciesthecurrentsituationoftwotinysalamanderspeciesintheneotropicalmountainsofmexico AT joselaguilarlopez insearchofcriticallyendangeredspeciesthecurrentsituationoftwotinysalamanderspeciesintheneotropicalmountainsofmexico
_version_	1718423537400676352

In search of critically endangered species: the current situation of two tiny salamander species in the Neotropical mountains of Mexico.

Ejemplares similares