Applying niche-based models to predict endangered-hylid potential distributions: are neotropical protected areas effective enough?

J. N. Urbina-Cardona; Rafael Loyola

doi:10.1177/194008290800100408

Applying niche-based models to predict endangered-hylid potential distributions: are neotropical protected areas effective enough?

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Resumen

En la actualidad, los anfibios tropicales enfrentan una crisis muy severa con un 35% de especies en peligro de extinción
en el Neotrópico. Se seleccionaron 16 hílidos en peligro de extinción y se usaron registros de especies para modelar su
distribución geográfica potencial a lo largo del neotrópico continental. Se encontró que hay una fuerte influencia de la
pendiente topográfica en la distribución potencial de los hílidos que interactúa sinérgicamente con la precipitación
máxima y los cambios de temperatura a lo largo del año. Se identificaron algunas áreas de sobrepredicción de especies
a lo largo del sur del neotrópico con gran potencial para direccionar futuras expediciones biológicas en busca de nuevas
especies microendémicas de hílidos. Nueve de las 16 especies de hílidos estudiadas presentaron rangos geográficos
muy restringidos presentando solo el 25% de su distribución geográfica potencial dentro de áreas naturales protegidas
en el Neotrópico. Las otras siete especies requieren la implementación de nuevas áreas de conservación que aseguren
la protección de por lo menos el 25% de su rango de distribución original en Mesoamérica. Algunos de los hílidos
amenazados presentan solo su periferia conservada con su núcleo de distribución fuera de las áreas protegidas. Estas
especies podrían estar especialmente amenazadas dado que se distribuyen actualmente en pequeñas subpoblaciones
aisladas debido a la fragmentación y pérdida del hábitat. Es recomendable que los esfuerzos de conservación para los
hílidos neotropicales se enfoquen en especies de distribución restringida y en el establecimiento de redes de áreas de
conservación en Mesoamérica. Los hábitats remanentes para la conservación de los hílidos amenazados debe ser
manejado como una red coordinada que incluya acciones a escalas finas y de paisaje que amortigüen los procesos
causante s de extinción por endogamia, deriva genética, y estocasticidad demográfica.

Idioma original	Inglés
Páginas (desde-hasta)	417-445
Publicación	Tropical Conservation Science
Volumen	1
N.º	4
DOI	https://doi.org/10.1177/194008290800100408
Estado	Publicada - 2008

Palabras clave

Especies amenazadas
biogeografía de la conservación
ranas arborícolas
MaxEnt
áreas protegidas
fragmentación de hábitat

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@article{4fe68b898e014c5d971cc88055db40be,

title = "Applying niche-based models to predict endangered-hylid potential distributions: are neotropical protected areas effective enough?",

abstract = "Tropical amphibians face a severe decline crisis with ca. 35% of species being currently threatened in the Neotropics. We selected 16 endangered-hylid species and used species records to model their potential geographical distribution for the continental Neotropics. We found that there is a strong influence of slope in hylid geographical distribution that interacts synergistically with maximum rainfall and temperature changes over the year. We identified some intersecting areas of species overprediction along southern Neotropics, which could be important for future biological surveys searching for undescribed microendemic hylid species. Nine of the 16 studied hylids have small geographic ranges with only 25% of its potential distribution being currently protected in the Neotropics. The remaining seven species are still in need of additional conservation areas to ensure the protection of at least 25% of its original distribution range in Mesoamerica. Most Neotropical endangered hylids have only the periphery of their distribution protected with its core distribution outside protected areas. These species may be especially threatened because they now occur in small, isolated subpopulations due to habitat fragmentation and loss. We suggest that conservation efforts for Neotropical hylids should be focused on restricted-range species and in the establishment of additional conservation area networks in Mesoamerica. Remaining habitats for threatened hylids need to be managed as a coordinate network including site-scale and landscape-scale actions to buffer the extinction-driven process caused by inbreeding, genetic drift, and demographic stochasticity.",

keywords = "Endangered species, conservation biogeography, tree frogs, MaxEnt, protected areas, habitat fragmentation, Especies amenazadas, biogeograf{\'i}a de la conservaci{\'o}n, ranas arbor{\'i}colas, MaxEnt, {\'a}reas protegidas, fragmentaci{\'o}n de h{\'a}bitat",

author = "Urbina-Cardona, {J. N.} and Rafael Loyola",

year = "2008",

doi = "10.1177/194008290800100408",

language = "English",

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journal = "Tropical Conservation Science",

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T1 - Applying niche-based models to predict endangered-hylid potential distributions

T2 - are neotropical protected areas effective enough?

AU - Urbina-Cardona, J. N.

AU - Loyola, Rafael

PY - 2008

Y1 - 2008

N2 - Tropical amphibians face a severe decline crisis with ca. 35% of species being currently threatened in the Neotropics. We selected 16 endangered-hylid species and used species records to model their potential geographical distribution for the continental Neotropics. We found that there is a strong influence of slope in hylid geographical distribution that interacts synergistically with maximum rainfall and temperature changes over the year. We identified some intersecting areas of species overprediction along southern Neotropics, which could be important for future biological surveys searching for undescribed microendemic hylid species. Nine of the 16 studied hylids have small geographic ranges with only 25% of its potential distribution being currently protected in the Neotropics. The remaining seven species are still in need of additional conservation areas to ensure the protection of at least 25% of its original distribution range in Mesoamerica. Most Neotropical endangered hylids have only the periphery of their distribution protected with its core distribution outside protected areas. These species may be especially threatened because they now occur in small, isolated subpopulations due to habitat fragmentation and loss. We suggest that conservation efforts for Neotropical hylids should be focused on restricted-range species and in the establishment of additional conservation area networks in Mesoamerica. Remaining habitats for threatened hylids need to be managed as a coordinate network including site-scale and landscape-scale actions to buffer the extinction-driven process caused by inbreeding, genetic drift, and demographic stochasticity.

AB - Tropical amphibians face a severe decline crisis with ca. 35% of species being currently threatened in the Neotropics. We selected 16 endangered-hylid species and used species records to model their potential geographical distribution for the continental Neotropics. We found that there is a strong influence of slope in hylid geographical distribution that interacts synergistically with maximum rainfall and temperature changes over the year. We identified some intersecting areas of species overprediction along southern Neotropics, which could be important for future biological surveys searching for undescribed microendemic hylid species. Nine of the 16 studied hylids have small geographic ranges with only 25% of its potential distribution being currently protected in the Neotropics. The remaining seven species are still in need of additional conservation areas to ensure the protection of at least 25% of its original distribution range in Mesoamerica. Most Neotropical endangered hylids have only the periphery of their distribution protected with its core distribution outside protected areas. These species may be especially threatened because they now occur in small, isolated subpopulations due to habitat fragmentation and loss. We suggest that conservation efforts for Neotropical hylids should be focused on restricted-range species and in the establishment of additional conservation area networks in Mesoamerica. Remaining habitats for threatened hylids need to be managed as a coordinate network including site-scale and landscape-scale actions to buffer the extinction-driven process caused by inbreeding, genetic drift, and demographic stochasticity.

KW - Endangered species

KW - conservation biogeography

KW - tree frogs

KW - MaxEnt

KW - protected areas

KW - habitat fragmentation

KW - Especies amenazadas

KW - biogeografía de la conservación

KW - ranas arborícolas

KW - MaxEnt

KW - áreas protegidas

KW - fragmentación de hábitat

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DO - 10.1177/194008290800100408

M3 - Article

SN - 1940-0829

VL - 1

SP - 417

EP - 445

JO - Tropical Conservation Science

JF - Tropical Conservation Science

IS - 4

ER -

Applying niche-based models to predict endangered-hylid potential distributions: are neotropical protected areas effective enough?

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