Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina
We examined foraging behavior and microhabitat use of four passerine bird species inhabiting an old growth coastal woodland in Buenos Aires Province, Argentina. Based on foraging maneuvers, we identified two groups: (1) nonaerial foragers formed by Tropical Parulas (Parula pitiayumi) and Masked Gnat...
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2002
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00435643_v114_n3_p342_Cueto http://hdl.handle.net/20.500.12110/paper_00435643_v114_n3_p342_Cueto |
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paper:paper_00435643_v114_n3_p342_Cueto2023-06-08T15:04:57Z Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina foraging behavior habitat use microhabitat old-growth forest passerine vegetation structure Argentina Buenos Aires Province Aves Elaenia Elaenia parvirostris Elaenia parvirostris Ligustrum Ligustrum lucidum Ligustrum lucidum Parula Parula pitiayumi Parula pitiayumi Passeriformes Polioptila Polioptila dumicola Polioptila dumicola Scutia buxifolia Scutia buxifolia Serpophaga subcristata Serpophaga subcristata We examined foraging behavior and microhabitat use of four passerine bird species inhabiting an old growth coastal woodland in Buenos Aires Province, Argentina. Based on foraging maneuvers, we identified two groups: (1) nonaerial foragers formed by Tropical Parulas (Parula pitiayumi) and Masked Gnatcatchers (Polioptila dumicola) that hopped on branches and twigs while searching and gleaning prey from the nearby foliage, and (2) aerial foragers formed by White-crested Tyrannulets (Serpophaga subcristata) and Small-billed Elaenias (Elaenia parvirostris) that searched for and detected prey while perched, and captured it from foliage or in the air. Nonaerial foragers found prey primarily in the canopy while aerial foragers captured prey at all heights in the woodland. Tree species selection was similar among the four species. All bird species disproportionately foraged in Scutia buxifolia and avoided the use of Ligustrum lucidum trees. Our results indicate that these bird species differed in microhabitat selection in old growth coastal woodland, and that nonaerial foragers were more sensitive to foliage architecture and foliage height distribution than aerial foragers. These results illustrate the importance of woodland logging to bird densities, and provide basic information for effective management. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00435643_v114_n3_p342_Cueto http://hdl.handle.net/20.500.12110/paper_00435643_v114_n3_p342_Cueto |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
foraging behavior habitat use microhabitat old-growth forest passerine vegetation structure Argentina Buenos Aires Province Aves Elaenia Elaenia parvirostris Elaenia parvirostris Ligustrum Ligustrum lucidum Ligustrum lucidum Parula Parula pitiayumi Parula pitiayumi Passeriformes Polioptila Polioptila dumicola Polioptila dumicola Scutia buxifolia Scutia buxifolia Serpophaga subcristata Serpophaga subcristata |
| spellingShingle |
foraging behavior habitat use microhabitat old-growth forest passerine vegetation structure Argentina Buenos Aires Province Aves Elaenia Elaenia parvirostris Elaenia parvirostris Ligustrum Ligustrum lucidum Ligustrum lucidum Parula Parula pitiayumi Parula pitiayumi Passeriformes Polioptila Polioptila dumicola Polioptila dumicola Scutia buxifolia Scutia buxifolia Serpophaga subcristata Serpophaga subcristata Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina |
| topic_facet |
foraging behavior habitat use microhabitat old-growth forest passerine vegetation structure Argentina Buenos Aires Province Aves Elaenia Elaenia parvirostris Elaenia parvirostris Ligustrum Ligustrum lucidum Ligustrum lucidum Parula Parula pitiayumi Parula pitiayumi Passeriformes Polioptila Polioptila dumicola Polioptila dumicola Scutia buxifolia Scutia buxifolia Serpophaga subcristata Serpophaga subcristata |
| description |
We examined foraging behavior and microhabitat use of four passerine bird species inhabiting an old growth coastal woodland in Buenos Aires Province, Argentina. Based on foraging maneuvers, we identified two groups: (1) nonaerial foragers formed by Tropical Parulas (Parula pitiayumi) and Masked Gnatcatchers (Polioptila dumicola) that hopped on branches and twigs while searching and gleaning prey from the nearby foliage, and (2) aerial foragers formed by White-crested Tyrannulets (Serpophaga subcristata) and Small-billed Elaenias (Elaenia parvirostris) that searched for and detected prey while perched, and captured it from foliage or in the air. Nonaerial foragers found prey primarily in the canopy while aerial foragers captured prey at all heights in the woodland. Tree species selection was similar among the four species. All bird species disproportionately foraged in Scutia buxifolia and avoided the use of Ligustrum lucidum trees. Our results indicate that these bird species differed in microhabitat selection in old growth coastal woodland, and that nonaerial foragers were more sensitive to foliage architecture and foliage height distribution than aerial foragers. These results illustrate the importance of woodland logging to bird densities, and provide basic information for effective management. |
| title |
Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina |
| title_short |
Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina |
| title_full |
Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina |
| title_fullStr |
Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina |
| title_full_unstemmed |
Foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral Argentina |
| title_sort |
foraging behavior and microhabitat use of birds inhabiting coastal woodlands in eastcentral argentina |
| publishDate |
2002 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00435643_v114_n3_p342_Cueto http://hdl.handle.net/20.500.12110/paper_00435643_v114_n3_p342_Cueto |
| _version_ |
1768543221580824576 |