Bird diversity of the Cúcuta valley (Colombia) and biogeographical affinities with dry forest avifaunas of northern South America

Jorge Enrique Avendaño; Juanpablo O. López; Oscar Laverde-R

doi:10.1676/16-016.1

Bird diversity of the Cúcuta valley (Colombia) and biogeographical affinities with dry forest avifaunas of northern South America

Título traducido de la contribución: Diversidad de aves en el valle de Cúcuta (Colombia) y afinidades biogeográficas con avifaunas de bosque seco del norte de Suramérica

Jorge Enrique Avendaño, Juanpablo O. López, Oscar Laverde-R

Departamento de Biología

Producción: Contribución a una revista › Artículo › revisión exhaustiva

10 Citas (Scopus)

Resumen

El bosque seco tropical estacional es el ecosistema menos conocido y más amenazado del Neotrópico. En diciembre de 2009, estudiamos 3 remanentes de bosque seco tropical en valle árido de Cúcuta, noreste de Colombia. Registramos 140 especies de un máximo de 171 especies esperadas para el área de estudio. Otras 20 especies fueron registradas fuera del inventario, para un total de 160 especies en la región. Los análisis de similitud mostraron que la avifauna del valle de Cúcuta está biogeográficamente más relacionada con los valles áridos de ríos interandinos que con las planicies caribeñas de Colombia y las tierras bajas caribeñas del norte de Venezuela. Este patrón de afinidades biogeográficas de las comunidades de aves de bosque seco en el noroeste de Suramérica parece ser explicado por el efecto de la distancia geográfica más que por diferencias ambientales que moldean la composición (β-diversidad) y la cercanía filogenética (phyloβ-diversidad) a través del espacio. Nuestros resultados resaltan la singularidad y necesidad de proteger los remanentes de bosque seco tropical en el valle de Cúcuta.

Título traducido de la contribución	Diversidad de aves en el valle de Cúcuta (Colombia) y afinidades biogeográficas con avifaunas de bosque seco del norte de Suramérica
Idioma original	Inglés
Páginas (desde-hasta)	213-223
Número de páginas	11
Publicación	Wilson Journal of Ornithology
Volumen	130
N.º	1
DOI	https://doi.org/10.1676/16-016.1
Estado	Publicada - 18 feb. 2018

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title = "Bird diversity of the C{\'u}cuta valley (Colombia) and biogeographical affinities with dry forest avifaunas of northern South America",

abstract = "Seasonally dry tropical forest is the least known and most threatened ecosystem in the Neotropics. In December 2009, we surveyed 3 tropical dry forest remnants in the arid C{\'u}cuta valley, northeast Colombia. We recorded 140 of the 171 maximum species expected for the study area. Another 20 species were observed outside the inventory, totaling 160 species for the whole region. Results of the similarity analysis showed that the C{\'u}cuta valley avifauna is biogeographically more related to the arid inter-Andean river valleys than to the Caribbean plains of Colombia and the Caribbean lowlands of northern Venezuela. This pattern of biogeographical affinities of dry forest bird communities in northwestern South America seems to be explained by the effect of geographic distance rather than environmental differences shaping species composition (β-diversity) and phylogenetic relatedness (phyloβ-diversity) across space. Our results highlight the uniqueness and need to protect the topical dry forest remnants of the C{\'u}cuta valley. ",

keywords = "Avian conservation, Lowland Neotropical birds, Seasonally tropical dry forest, Threatened ecosystem",

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AU - López, Juanpablo O.

AU - Laverde-R, Oscar

PY - 2018/2/18

Y1 - 2018/2/18

N2 - Seasonally dry tropical forest is the least known and most threatened ecosystem in the Neotropics. In December 2009, we surveyed 3 tropical dry forest remnants in the arid Cúcuta valley, northeast Colombia. We recorded 140 of the 171 maximum species expected for the study area. Another 20 species were observed outside the inventory, totaling 160 species for the whole region. Results of the similarity analysis showed that the Cúcuta valley avifauna is biogeographically more related to the arid inter-Andean river valleys than to the Caribbean plains of Colombia and the Caribbean lowlands of northern Venezuela. This pattern of biogeographical affinities of dry forest bird communities in northwestern South America seems to be explained by the effect of geographic distance rather than environmental differences shaping species composition (β-diversity) and phylogenetic relatedness (phyloβ-diversity) across space. Our results highlight the uniqueness and need to protect the topical dry forest remnants of the Cúcuta valley.

AB - Seasonally dry tropical forest is the least known and most threatened ecosystem in the Neotropics. In December 2009, we surveyed 3 tropical dry forest remnants in the arid Cúcuta valley, northeast Colombia. We recorded 140 of the 171 maximum species expected for the study area. Another 20 species were observed outside the inventory, totaling 160 species for the whole region. Results of the similarity analysis showed that the Cúcuta valley avifauna is biogeographically more related to the arid inter-Andean river valleys than to the Caribbean plains of Colombia and the Caribbean lowlands of northern Venezuela. This pattern of biogeographical affinities of dry forest bird communities in northwestern South America seems to be explained by the effect of geographic distance rather than environmental differences shaping species composition (β-diversity) and phylogenetic relatedness (phyloβ-diversity) across space. Our results highlight the uniqueness and need to protect the topical dry forest remnants of the Cúcuta valley.

KW - Avian conservation

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KW - Seasonally tropical dry forest

KW - Threatened ecosystem

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Bird diversity of the Cúcuta valley (Colombia) and biogeographical affinities with dry forest avifaunas of northern South America

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