Bird species diversity and guild structure of a tropical fallow ricefield

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Because avian community organization of tropical wetland habitats in Amazonia is not well known, we conducted a preliminary study on a two-year old fallow ricef teld in coastal Guyana. Census of the field during July and August, 1974 found 31 diurnal spccies, a bird species diversity (H') of 3....

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Detalles Bibliográficos
Autores principales: Osborne, David R., Buissinger, Steven R., Bourne, Godfrey
Lenguaje:Inglés
Publicado: 1983
Acceso en línea:https://hdl.handle.net/20.500.12110/hornero_v012_n01extra_p113
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:hornero_v012_n01extra_p1132023-10-03T13:46:19Z Bird species diversity and guild structure of a tropical fallow ricefield Osborne, David R. Buissinger, Steven R. Bourne, Godfrey Because avian community organization of tropical wetland habitats in Amazonia is not well known, we conducted a preliminary study on a two-year old fallow ricef teld in coastal Guyana. Census of the field during July and August, 1974 found 31 diurnal spccies, a bird species diversity (H') of 3.22 and evenness (J') of 0.94. These values are probably the highest recorded. for a tropical nonforested area. Conununity foraging utilization was diverse. Insectivores and omnivores dominated the primary food habit types but camivorous, granivorous and nectivorous species were also represented. The bird community was dominated by species utilizing ground and water substrates for foraging and foliage gleaning was the dominant form of 8 types of foraging behavior recorded. Eighteen foraging guilds were found. Nine (50%) were represented by only 1 species. Factors accounting for high bird species diversity and guild richness are discussed. We propose high diversity in bird species and foraging utilization are the consequence of a highly productive system and the unstability of adjacent habitats. 1983-06 PDF Inglés info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar https://hdl.handle.net/20.500.12110/hornero_v012_n01extra_p113
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv Inglés
description Because avian community organization of tropical wetland habitats in Amazonia is not well known, we conducted a preliminary study on a two-year old fallow ricef teld in coastal Guyana. Census of the field during July and August, 1974 found 31 diurnal spccies, a bird species diversity (H') of 3.22 and evenness (J') of 0.94. These values are probably the highest recorded. for a tropical nonforested area. Conununity foraging utilization was diverse. Insectivores and omnivores dominated the primary food habit types but camivorous, granivorous and nectivorous species were also represented. The bird community was dominated by species utilizing ground and water substrates for foraging and foliage gleaning was the dominant form of 8 types of foraging behavior recorded. Eighteen foraging guilds were found. Nine (50%) were represented by only 1 species. Factors accounting for high bird species diversity and guild richness are discussed. We propose high diversity in bird species and foraging utilization are the consequence of a highly productive system and the unstability of adjacent habitats.
author Osborne, David R.
Buissinger, Steven R.
Bourne, Godfrey
spellingShingle Osborne, David R.
Buissinger, Steven R.
Bourne, Godfrey
Bird species diversity and guild structure of a tropical fallow ricefield
author_facet Osborne, David R.
Buissinger, Steven R.
Bourne, Godfrey
author_sort Osborne, David R.
title Bird species diversity and guild structure of a tropical fallow ricefield
title_short Bird species diversity and guild structure of a tropical fallow ricefield
title_full Bird species diversity and guild structure of a tropical fallow ricefield
title_fullStr Bird species diversity and guild structure of a tropical fallow ricefield
title_full_unstemmed Bird species diversity and guild structure of a tropical fallow ricefield
title_sort bird species diversity and guild structure of a tropical fallow ricefield
publishDate 1983
url https://hdl.handle.net/20.500.12110/hornero_v012_n01extra_p113
work_keys_str_mv AT osbornedavidr birdspeciesdiversityandguildstructureofatropicalfallowricefield
AT buissingerstevenr birdspeciesdiversityandguildstructureofatropicalfallowricefield
AT bournegodfrey birdspeciesdiversityandguildstructureofatropicalfallowricefield
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