 Analysis of the distribution of the Grison (Galictis vittata) (Carnivora: Mustelidae) in the Colombian Caribbean

Analysis of the distribution of the Grison (Galictis vittata) (Carnivora: Mustelidae) in the Colombian Caribbean

El grisón (Galictis vittata) es un carnívoro mustélido con una amplia distribución en el continente americano, incluida Colombia. Sin embargo, se trata de una de las especies de carnívoros menos estudiada en Colombia, con déficit de información sobre su distribución, ecología y estado de conservación. Se recopilaron todos los registros y observaciones disponibles de la especie en la región...

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Environmental determinants and spatial mismatch of mammal diversity measures in Colombia

Environmental determinants and spatial mismatch of mammal diversity measures in Colombia

La inclusión de medidas complementarias de diversidad en los estudios de ecología y conservación debería mejorar nuestra capacidad de establecer vínculos entre los ensamblajes de especies y los ecosistemas. Medidas recientes como la diversidad filogenética y la funcional han mejorado nuestra comprensión de los patrones de ensamblaje de las especies y los ecosistemas, lo que ha permitido mejorar las...

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Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)

Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)

El Caimán del Apaporis Caiman crocodilus apaporiensis ha sido considerado por algunos autores como una variación extrema en la morfología del complejo Caiman crocodilus. En este trabajo evaluamos su posición dentro del complejo Caiman crocodilus, utilizando caracteres morfológicos de la forma de la cabeza. Examinamos el holotipo y diecisiete paratipos de Caiman crocodilus apaporiensis Medem 1955 depositado en el...

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 Spatial patterns of species and functional diversity in Costa Rican terrestrial mammals: implications for conservation

Spatial patterns of species and functional diversity in Costa Rican terrestrial mammals: implications for conservation

Functional diversity is a relatively recent approach to quantify species diversity and may provide a better understanding of the linkages between biological diversity and ecosystem functioning. Understanding the relationships between mammal species richness and functional diversity, the factors that influence these relationships, and the spatial scale at which they operate, can improve our knowledge of ecosystem functioning and may...

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Effectiveness of protected areas for representing species and populations of terrestrial mammals in Costa Rica

Effectiveness of protected areas for representing species and populations of terrestrial mammals in Costa Rica

Costa Rica has one of the greatest percentages (26%) of protected land in the world. The National Protected Areas System (NPAS) of Costa Rica was established in 1976 and currently includes >190 protected areas within seven different protection categories. The effectiveness of the NPAS to represent species, populations, and areas with high species richness has not been properly evaluated....

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Distribution, range extension, and conservation of the endemic Black-headed Bushmaster (Lachesis melanocephala) in Costa Rica and Panama

Distribution, range extension, and conservation of the endemic Black-headed Bushmaster (Lachesis melanocephala) in Costa Rica and Panama

The Black-headed Bushmaster, Lachesis melanocephala (Viperidae: Crotalinae), is an endemic pit viper from south-eastern Costa Rica. Despite its importance with regard to medicine and conservation, the ecology and distribution of this species are still poorly known, mainly because it was only recently recognized as a full species and records are scarce across its range. Known only from the Pacific...

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Carnivores in silvopastoral systems of Colombia

Conservation value of forest fragments for medium-sized carnivores in a silvopastoral system in Colombia

Silvopastoral cattle ranching is seen as a viable land use management system, which unlike traditional land use systems preserve forested areas and prevent loss of important habitats for carnivores. We evaluated carnivore abundance and habitat use in a 50-year silvopastoral system located in the Cordoba department, Caribbean region of Colombia. Transects and track plots were established both in forest...

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The Status of the World’s Land and Marine Mammals: Diversity, Threat, and Knowledge

The Status of the World’s Land and Marine Mammals: Diversity, Threat, and Knowledge

Knowledge of mammalian diversity is still surprisingly disparate, both regionally and taxonomically. Here, we present a comprehensive assessment of the conservation status and distribution of the world’s mammals. Data, compiled by 1700+ experts, cover all 5487 species, including marine mammals. Global macroecological patterns are very different for land and marine species but suggest common mechanisms driving diversity and endemism...

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