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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2011
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=42521043021 |
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| _version_ | 1866557853286793216 |
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| author | Enrique Arbeláez-Cortés |
| author_facet | Enrique Arbeláez-Cortés |
| contents | Mixed bird flocks: patterns of activity and species composition in a region of the Central Andes of Colombia Enrique Arbeláez-Cortés Hernando A. Rodríguez-Corre Manuela Restrepo-Chica Biología Quindío South America montane forest species richness La Patasola Natural Reserve Mixed bird flocks are groups of individuals from different species that travel and forage together. Such groups are common in several bird communities around the world. We present species composition and activity patterns of mixed bird flocks in a region of the Central Andes of Colombia. We compared the number of species per flock, as well as the number of flocks among 3 different habitats. We tested hypotheses concerning the flocks daily activity and the co-occurrences of species within them. We recorded 75 species, and the species number per flock varied from 4 to 21. Our data suggest that habitat affects the number of flocks but not their species number, and that the activity of flocks is similar throughout the day. In addition, the association of birds in flocks is affected by interspecific facilitation, with some species co-occurrences found more times than expected by chance. We hypothesize that some tanager species could have a role in flock cohesion. We witnessed 2 predator attacks upon flocks, a number of agonistic interactions among flock members, and squirrels following bird flocks. Our results meet some general patterns described for mixed bird flocks. 2011 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42521043021 en http://www.redalyc.org/revista.oa?id=425 Revista Mexicana de Biodiversidad application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Biodiversidad (México) Num.2 Vol.82 |
| format | Artículo científico |
| id | redalyc_42521043021 |
| language | en |
| publishDate | 2011 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Mixed bird flocks: patterns of activity and species composition in a region of the Central Andes of Colombia Enrique Arbeláez-Cortés Biología Quindío South America montane forest species richness La Patasola Natural Reserve Mixed bird flocks: patterns of activity and species composition in a region of the Central Andes of Colombia Enrique Arbeláez-Cortés Hernando A. Rodríguez-Corre Manuela Restrepo-Chica Biología Quindío South America montane forest species richness La Patasola Natural Reserve Mixed bird flocks are groups of individuals from different species that travel and forage together. Such groups are common in several bird communities around the world. We present species composition and activity patterns of mixed bird flocks in a region of the Central Andes of Colombia. We compared the number of species per flock, as well as the number of flocks among 3 different habitats. We tested hypotheses concerning the flocks daily activity and the co-occurrences of species within them. We recorded 75 species, and the species number per flock varied from 4 to 21. Our data suggest that habitat affects the number of flocks but not their species number, and that the activity of flocks is similar throughout the day. In addition, the association of birds in flocks is affected by interspecific facilitation, with some species co-occurrences found more times than expected by chance. We hypothesize that some tanager species could have a role in flock cohesion. We witnessed 2 predator attacks upon flocks, a number of agonistic interactions among flock members, and squirrels following bird flocks. Our results meet some general patterns described for mixed bird flocks. 2011 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42521043021 en http://www.redalyc.org/revista.oa?id=425 Revista Mexicana de Biodiversidad application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Biodiversidad (México) Num.2 Vol.82 |
| title | Mixed bird flocks: patterns of activity and species composition in a region of the Central Andes of Colombia |
| topic | Biología Quindío South America montane forest species richness La Patasola Natural Reserve |
| url | https://www.redalyc.org/articulo.oa?id=42521043021 |