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180604s2013 xx |||||o 00| ||eng c |
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|a (DE-627)JST111910536
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|a (JST)23355758
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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 Luna-Maira, Laura
|e verfasserin
|4 aut
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|a Habitat use and ecology of Wattled Curassows on islands in the lower Caquetá River, Colombia
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
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|a Online-Ressource
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|a Despite being endangered, little is known about the natural history and habitat use of Wattled Curassows (Crax globulosa). From September 2008 to March 2009, we examined habitat associations of this species on three islands in the lower Caquetá River, Colombia. Observations of curassows were made during line-transect walks, and habitat variables were measured at points where curassows were and were not observed along those transects to assess potential habitat preferences. A total of 182 sightings yielded encounter rates ranging from 0.1 to 0.89 observations/km across transects. Curassows were more likely to be observed close to the river and to lakes on the islands. Additionally, the importance of the river increased as the distance to internal water sources increased. Other habitat characteristics, including tree density, tree diameter, understory density, and canopy cover, did not differ between areas where Wattled Curassows were and were not observed. Flock size ranged from 1 to 9 individuals; most solitary individuals were males and flocks (>2 individuals) generally consisted of more females than males. The association of Wattled Curassows with water sources during the low-water season may have conservation implications because it could increase their vulnerability to anthropogenic activities such as agricultural activities, fishing, and hunting. As a result, conservation of these curassows on islands in the lower Caquetá River will likely depend on local support. A pesar de estar en peligro, poco se conoce sobre la historia natural y el uso de hábitat de Crax globulosa. Desde Septiembre del 2008 a Marzo del 2009, examinamos asociación con el hábitat en esta especie en tres islas del bajo río Caquetá, Colombia. Observamos los paujiles durante caminatas en transectos en línea y medimos variables del hábitat, en puntos con y sin presencia de paujiles a lo largo de los transectos, para evaluar preferencias en el hábitat. Un total de 182 avistamientos produjeron tasas de encuentro entre 0.1 y 0.89 observaciones/km a lo largo de los transectos. La probabilidad de observar a los paujiles fue más alta cerca al río y lagos en las islas. Adicionalmente, la importancia del río incrementó con el aumento en la distancia a las fuentes de aguas del interior. Otras características de hábitat que incluyen densidad y diámetro de arboles, densidad del sotobosque y cobertura del dosel, no variaron entre áreas en donde C. globulosa fue o no observado. El tamaño de la bandada fluctuó entre 1 y 9 individuos; la mayoría de los individuos solitarios fueron machos y las bandadas (>2 individuos) generalmente tenían más hembras que machos. La asociación de C. globulosa con fuentes de agua durante la temporada de aguas bajas puede tener implicaciones para su conservación, debido a que puede incrementar su vulnerabilidad a actividades antropogénicas como agricultura, pesca y caza. Como resultado, la conservación de este paujil en las islas del bajo río Caquetá muy probablemente dependerá del apoyo local.
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|a Copyright © 2013 Association of Field Ornithologists
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|a Biological sciences
|x Biology
|x Botany
|x Plant ecology
|x Forest ecology
|x Forest ecosystems
|x Forest habitats
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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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4 |
|a Biological sciences
|x Ecology
|x Population ecology
|x Synecology
|x Habitats
|x Aquatic habitats
|x Riverine habitats
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4 |
|a Biological sciences
|x Ecology
|x Animal ecology
|x Habitat preferences
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Bodies of water
|x Rivers
|x River water
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650 |
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4 |
|a Biological sciences
|x Biology
|x Zoology
|x Animals
|x Birds
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650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Bodies of water
|x Rivers
|x Headwaters
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650 |
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4 |
|a Biological sciences
|x Ecology
|x Animal ecology
|x Animal communities
|x Flocks
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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
|x Plant strata
|x Vegetation canopies
|x Forest canopy
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650 |
|
4 |
|a Biological sciences
|x Biology
|x Conservation biology
|x Environmental conservation
|x Forest conservation
|x Biology of Neotropical Birds
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|a research-article
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1 |
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|a Alarcón-Nieto, Gustavo
|e verfasserin
|4 aut
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1 |
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|a Haugaasen, Torbjørn
|e verfasserin
|4 aut
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1 |
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|a Brooks, Daniel M.
|e verfasserin
|4 aut
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0 |
8 |
|i Enthalten in
|t Journal of Field Ornithology
|d Wiley Periodicals, Inc.
|g 84(2013), 1, Seite 23-31
|w (DE-627)39338926X
|w (DE-600)2159269-X
|x 15579263
|7 nnns
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1 |
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|g volume:84
|g year:2013
|g number:1
|g pages:23-31
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|u http://dx.doi.org/10.1111/jofo.12002
|3 Volltext
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|d 84
|j 2013
|e 1
|h 23-31
|