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180521s2014 xx |||||o 00| ||eng c |
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|a (DE-627)JST101303092
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|a (JST)43287432
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a González-Trujillo, Ricardo
|e verfasserin
|4 aut
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|a Vegetation Cover and Road Density as Indicators of Habitat Suitability for the Morelet's Crocodile
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
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|2 rdamedia
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|a Online-Ressource
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|a Understanding the response of species to land-use change is necessary for the improvement of management and conservation policies. We assessed the impact of vegetation cover and land-use change on Morelet's crocodile populations in nine wetlands located in central Veracruz, Mexico, to test the hypothesis that higher forest cover and lower anthropogenic impact increases crocodile density. We correlated the relative density of crocodiles with wetland attributes, including depth, pH, salinity, and richness and structure of bordering vegetation; and with anthropogenic disturbance factors, including the proportion of modified land surrounding the water body, road density, and road type. The relative density of crocodiles was correlated positively with vegetation cover and correlated negatively with plant density and with the presence of nonpaved roads, particularly in the zone that bordered the water bodies (core zone). Our findings suggest that as long as the water bodies are bordered with arboreal vegetation, land-use change and paved road density in inland areas had minor impacts on Morelet's crocodile populations in Mexican wetlands. The vegetation cover and the number of nonpaved roads within the core zone are useful indicators of habitat suitability for the Morelet's crocodile. The conservation of mangroves and forest remnants is therefore essential for the maintenance of crocodile populations. Entender la respuesta de las especies al cambio de uso del suelo es necesario para mejorar las políticas de gestión y conservación de los recursos naturales. Evaluamos el impacto de la cobertura vegetal y el cambio de uso del suelo sobre nueve poblaciones del cocodrilo de pantano localizadas en el centro de Veracruz, México. Se sometió a prueba la hipótesis de que el aumento en la cobertura forestal y la reducción del impacto antròpico incrementan la densidad de cocodrilos. Correlacionamos las densidades relativas de los cocodrilos con atributos de los humedales, tales como profundidad, pH, salinidad, riqueza y estructura de la vegetación, y con atributos de disturbio antropogénicos como la proporción de tierras modificadas que rodean el cuerpo de agua, la densidad de caminos y los tipos de carretera. La densidad relativa de los cocodrilos aumentó cuando la proporción de cobertura vegetal natural fue mayor y disminuyó con la el aumento en el número de carreteras no pavimentadas, particularmente cuando éstas se encontraban alrededor de los cuerpos de agua (zona núcleo). Nuestros hallazgos sugieren que, mientras que los cuerpos de agua estén rodeados de vegetación arbórea, el cambio de uso de suelo y la densidad de carreteras pavimentadas lejanos al cuerpo de agua tendrán un impacto mínimo sobre las poblaciones de cocodrilo de pantano en los humedales mexicanos. La cobertura de la vegetación en la zona núcleo y el número de carreteras no pavimentadas son indicadores útiles de calidad del habitat para el cocodrilo de pantano. La preservación de los bosques remanentes y los manglares es esencial para el mantenimiento de las poblaciones de cocodrilos.
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|a © 2014 Society for the Study of Amphibians and Reptiles
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|a Biological sciences
|x Biology
|x Zoology
|x Animals
|x Reptiles
|x Crocodiles
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Land
|x Rangelands
|x Wetlands
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Bodies of water
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Conservation biology
|x Conservation agriculture
|x Habitat conservation
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Plant ecology
|x Vegetation
|x Vegetation structure
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Plant ecology
|x Vegetation
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Conservation biology
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Aquatic ecology
|x Wetland ecology
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Biological taxonomies
|x Species
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Applied ecology
|x Environmental management
|x Environmental protection
|x Wetland conservation
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| 655 |
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4 |
|a research-article
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1 |
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|a Méndez-Alonzo, Rodrigo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arroyo-Rodríguez, Victor
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vega, Ernesto
|e verfasserin
|4 aut
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| 700 |
1 |
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|a González-Romero, Alberto
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Reynoso, Víctor H.
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of Herpetology
|d Society for the Study of Amphibians and Reptiles, 1968
|g 48(2014), 2, Seite 188-194
|w (DE-627)JST048459429
|x 19372418
|7 nnns
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| 773 |
1 |
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|g volume:48
|g year:2014
|g number:2
|g pages:188-194
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|u https://www.jstor.org/stable/43287432
|3 Volltext
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|a AR
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|d 48
|j 2014
|e 2
|h 188-194
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