PATRONS OF DIVERSITY AND COMPOSITION OF REPTILES IN FRAGMENTS IN THE DRY TROPICAL FOREST IN CORDOBA, COLOMBIA

J. E. Carvajal-Cogollo; Jose Nicolas Urbina Cardona

doi:10.1177/194008290800100407

PATRONS OF DIVERSITY AND COMPOSITION OF REPTILES IN FRAGMENTS IN THE DRY TROPICAL FOREST IN CORDOBA, COLOMBIA

Título traducido de la contribución: PATRONES DE DIVERSIDAD Y COMPOSICIÓN DE REPTILES EN FRAGMENTOS DE BOSQUE SECO TROPICAL EN CÓRDOBA, COLOMBIA

J. E. Carvajal-Cogollo, Jose Nicolas Urbina Cardona

Producción: Contribución a una revista › Artículo › revisión exhaustiva

Resumen

El bosque seco tropical es uno de los ecosistemas más amenazado del planeta y los reptiles que alberga han sido pobremente estudiados. En seis fragmentos de bosque seco tropical (con un área entre 7 y 84 ha) rodeados por potrero, se muestrearon reptiles durante el día y la noche, en tres temporadas a lo largo de 120 transectos lineales. Se encontró mayor riqueza de especies en los fragmentos de mayor área pero la relación “número de especies-área del fragmento” se perdió a medida que los estimadores de riqueza predijeron mayor número de especies en el ensamble. La abundancia total de reptiles y la composición de especies no varió en relación al área del fragmento pero el fragmento de mayor área presentó el mayor número de especies exclusivas. El mayor recambio de especies se dio entre los fragmentos grandes y los pequeños. El tamaño del fragmento claramente afectó a Anolis vittigerus, lagarto que hasta el momento no se encuentra incluido en las categorías de riesgo de la UICN. Más del 70% de las especies encontradas son raras (abundancia < a 4 individuos) por lo cual es necesario realizar estudios poblacionales intensivos para poder conocer la respuesta de las especies crípticas a la pérdida y fragmentación del hábitat.

Título traducido de la contribución	PATRONES DE DIVERSIDAD Y COMPOSICIÓN DE REPTILES EN FRAGMENTOS DE BOSQUE SECO TROPICAL EN CÓRDOBA, COLOMBIA
Idioma original	Inglés
Páginas (desde-hasta)	397-416
Publicación	Tropical Conservation Science
Volumen	1
N.º	4
DOI	https://doi.org/10.1177/194008290800100407
Estado	Publicada - 2008

Palabras clave

Bosque seco tropical
pérdida de hábitat
diversidad de reptiles
patrones de abundancia
tamaño de fragmento

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10.1177/194008290800100407

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@article{22a5205c11a34d369e4b8216a0c0f69c,

title = "PATRONS OF DIVERSITY AND COMPOSITION OF REPTILES IN FRAGMENTS IN THE DRY TROPICAL FOREST IN CORDOBA, COLOMBIA",

abstract = "Tropical dry forest is the most threatened ecosystem around the World and reptiles, as a group, are the least studied of vertebrates. Along 120 transects in six tropical dry forest fragments (between 7 and 84 ha) surrounded by pastures, reptiles were sampled three times during three field seasons using equal day and night efforts. We recorded the highest reptile richness in larger forest fragments but species-area relationship was not apparent when richness estimators predicted more species number in the ensemble. Total abundance and composition in the reptile assemblage did not change along fragment area gradient but larger fragment presented higher number of fragment-exclusive species. The greatest amount of species exchange was between larger and smaller forest fragments. Fragment size clearly affected the lizard Anolis vittigerus but this species is not included in the IUCN threatened categories although habitat loss is the most important factor affecting reptiles' decline. More than 70% of reptiles are rare species (with < 4 individuals) within the ensemble and is important to increase studies of population ecology to identify the response of cryptic species responses to habitat loss and fragmentation.",

keywords = "Bosque seco tropical, p{\'e}rdida de h{\'a}bitat, diversidad de reptiles, patrones de abundancia, tama{\~n}o de fragmento, Tropical dry forest, habitat loss, reptile diversity, abundance patterns, patch size",

author = "Carvajal-Cogollo, {J. E.} and {Urbina Cardona}, {Jose Nicolas}",

year = "2008",

doi = "10.1177/194008290800100407",

language = "English",

volume = "1",

pages = "397--416",

journal = "Tropical Conservation Science",

issn = "1940-0829",

publisher = "SAGE Publications Inc.",

number = "4",

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T1 - PATRONS OF DIVERSITY AND COMPOSITION OF REPTILES IN FRAGMENTS IN THE DRY TROPICAL FOREST IN CORDOBA, COLOMBIA

AU - Carvajal-Cogollo, J. E.

AU - Urbina Cardona, Jose Nicolas

PY - 2008

Y1 - 2008

N2 - Tropical dry forest is the most threatened ecosystem around the World and reptiles, as a group, are the least studied of vertebrates. Along 120 transects in six tropical dry forest fragments (between 7 and 84 ha) surrounded by pastures, reptiles were sampled three times during three field seasons using equal day and night efforts. We recorded the highest reptile richness in larger forest fragments but species-area relationship was not apparent when richness estimators predicted more species number in the ensemble. Total abundance and composition in the reptile assemblage did not change along fragment area gradient but larger fragment presented higher number of fragment-exclusive species. The greatest amount of species exchange was between larger and smaller forest fragments. Fragment size clearly affected the lizard Anolis vittigerus but this species is not included in the IUCN threatened categories although habitat loss is the most important factor affecting reptiles' decline. More than 70% of reptiles are rare species (with < 4 individuals) within the ensemble and is important to increase studies of population ecology to identify the response of cryptic species responses to habitat loss and fragmentation.

AB - Tropical dry forest is the most threatened ecosystem around the World and reptiles, as a group, are the least studied of vertebrates. Along 120 transects in six tropical dry forest fragments (between 7 and 84 ha) surrounded by pastures, reptiles were sampled three times during three field seasons using equal day and night efforts. We recorded the highest reptile richness in larger forest fragments but species-area relationship was not apparent when richness estimators predicted more species number in the ensemble. Total abundance and composition in the reptile assemblage did not change along fragment area gradient but larger fragment presented higher number of fragment-exclusive species. The greatest amount of species exchange was between larger and smaller forest fragments. Fragment size clearly affected the lizard Anolis vittigerus but this species is not included in the IUCN threatened categories although habitat loss is the most important factor affecting reptiles' decline. More than 70% of reptiles are rare species (with < 4 individuals) within the ensemble and is important to increase studies of population ecology to identify the response of cryptic species responses to habitat loss and fragmentation.

KW - Bosque seco tropical

KW - pérdida de hábitat

KW - diversidad de reptiles

KW - patrones de abundancia

KW - tamaño de fragmento

KW - Tropical dry forest

KW - habitat loss

KW - reptile diversity

KW - abundance patterns

KW - patch size

U2 - 10.1177/194008290800100407

DO - 10.1177/194008290800100407

M3 - Article

SN - 1940-0829

VL - 1

SP - 397

EP - 416

JO - Tropical Conservation Science

JF - Tropical Conservation Science

IS - 4

ER -

PATRONS OF DIVERSITY AND COMPOSITION OF REPTILES IN FRAGMENTS IN THE DRY TROPICAL FOREST IN CORDOBA, COLOMBIA

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