Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina

Selective logging is one of the main economical activities in tropical and subtropical forests. While most of the effects of this activity on bird communities have been studied by comparing exploited vs. non-exploited areas; the use of human-created treefall gaps by birds is relatively unknown. We s...

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Detalles Bibliográficos
Autores principales:	Zurita, G.A., Zuleta, G.A.
Formato:	JOUR
Materias:	Argentina Birds Logging gaps Mountain forest Selective logging Yungas Curing Drought Ecology Fruits Harvesting Landforms Logging (forestry) Ocean habitats Tropics Vegetation Forestry abundance anthropogenic effect community response economic activity gap dynamics habitat structure montane forest regeneration resource use selective logging space use subtropical region succession understory wet season Economic Analysis Logging Management Plants Trees Bolivia La Paz [Bolivia] South America Arthropoda Aves
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03781127_v257_n1_p271_Zurita
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03781127_v257_n1_p271_Zurita
record_format	dspace
spelling	todo:paper_03781127_v257_n1_p271_Zurita2023-10-03T15:31:54Z Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina Zurita, G.A. Zuleta, G.A. Argentina Birds Logging gaps Mountain forest Selective logging Yungas Curing Drought Ecology Fruits Harvesting Landforms Logging (forestry) Ocean habitats Tropics Vegetation Argentina Logging gaps Mountain forest Selective logging Yungas Forestry abundance anthropogenic effect community response economic activity gap dynamics habitat structure montane forest regeneration resource use selective logging space use subtropical region succession understory wet season Birds Curing Drought Economic Analysis Forestry Fruits Logging Management Plants Trees Tropics Argentina Bolivia La Paz [Bolivia] South America Yungas Arthropoda Aves Selective logging is one of the main economical activities in tropical and subtropical forests. While most of the effects of this activity on bird communities have been studied by comparing exploited vs. non-exploited areas; the use of human-created treefall gaps by birds is relatively unknown. We studied habitat structure, resource abundance (fruits, flowers and arthropods) and bird activity in logging gaps of different age (1-year-old and 10- to 20-year-old) in a mountain forest (Yungas) of northwest Argentina in both dry and wet seasons. In less than a year after creation, short herbs colonize logging gaps increasing the abundance of arthropods in the ground and the activity of understory insectivores. During dry seasons recently created gaps become an important source of resources for understory frugivores-insectivores. Later on in succession logging gaps are invaded by exotic graminoid vegetation and tall herbs (dispersed through extraction tracks) which can impede the colonization and development of pioneer trees and natural regeneration. Probably as a consequence of a high abundance of fruits and flowers in the understory and a very low abundance of these resources in the canopy, old gaps were mainly used by understory frugivores-insectivores while arboreal frugivores were rare. Because arboreal frugivores disperse most tree seeds in tropical and subtropical forests, the low activity of this guild in logging gaps contribute to the low observed regeneration. Sustainable timber harvest in tropical and subtropical forests should include gap and logging track management to minimize the invasion by exotic graminoid vegetation and facilitate natural succession. © 2008 Elsevier B.V. All rights reserved. Fil:Zurita, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Zuleta, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03781127_v257_n1_p271_Zurita
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Birds Logging gaps Mountain forest Selective logging Yungas Curing Drought Ecology Fruits Harvesting Landforms Logging (forestry) Ocean habitats Tropics Vegetation Argentina Logging gaps Mountain forest Selective logging Yungas Forestry abundance anthropogenic effect community response economic activity gap dynamics habitat structure montane forest regeneration resource use selective logging space use subtropical region succession understory wet season Birds Curing Drought Economic Analysis Forestry Fruits Logging Management Plants Trees Tropics Argentina Bolivia La Paz [Bolivia] South America Yungas Arthropoda Aves
spellingShingle	Argentina Birds Logging gaps Mountain forest Selective logging Yungas Curing Drought Ecology Fruits Harvesting Landforms Logging (forestry) Ocean habitats Tropics Vegetation Argentina Logging gaps Mountain forest Selective logging Yungas Forestry abundance anthropogenic effect community response economic activity gap dynamics habitat structure montane forest regeneration resource use selective logging space use subtropical region succession understory wet season Birds Curing Drought Economic Analysis Forestry Fruits Logging Management Plants Trees Tropics Argentina Bolivia La Paz [Bolivia] South America Yungas Arthropoda Aves Zurita, G.A. Zuleta, G.A. Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina
topic_facet	Argentina Birds Logging gaps Mountain forest Selective logging Yungas Curing Drought Ecology Fruits Harvesting Landforms Logging (forestry) Ocean habitats Tropics Vegetation Argentina Logging gaps Mountain forest Selective logging Yungas Forestry abundance anthropogenic effect community response economic activity gap dynamics habitat structure montane forest regeneration resource use selective logging space use subtropical region succession understory wet season Birds Curing Drought Economic Analysis Forestry Fruits Logging Management Plants Trees Tropics Argentina Bolivia La Paz [Bolivia] South America Yungas Arthropoda Aves
description	Selective logging is one of the main economical activities in tropical and subtropical forests. While most of the effects of this activity on bird communities have been studied by comparing exploited vs. non-exploited areas; the use of human-created treefall gaps by birds is relatively unknown. We studied habitat structure, resource abundance (fruits, flowers and arthropods) and bird activity in logging gaps of different age (1-year-old and 10- to 20-year-old) in a mountain forest (Yungas) of northwest Argentina in both dry and wet seasons. In less than a year after creation, short herbs colonize logging gaps increasing the abundance of arthropods in the ground and the activity of understory insectivores. During dry seasons recently created gaps become an important source of resources for understory frugivores-insectivores. Later on in succession logging gaps are invaded by exotic graminoid vegetation and tall herbs (dispersed through extraction tracks) which can impede the colonization and development of pioneer trees and natural regeneration. Probably as a consequence of a high abundance of fruits and flowers in the understory and a very low abundance of these resources in the canopy, old gaps were mainly used by understory frugivores-insectivores while arboreal frugivores were rare. Because arboreal frugivores disperse most tree seeds in tropical and subtropical forests, the low activity of this guild in logging gaps contribute to the low observed regeneration. Sustainable timber harvest in tropical and subtropical forests should include gap and logging track management to minimize the invasion by exotic graminoid vegetation and facilitate natural succession. © 2008 Elsevier B.V. All rights reserved.
format	JOUR
author	Zurita, G.A. Zuleta, G.A.
author_facet	Zurita, G.A. Zuleta, G.A.
author_sort	Zurita, G.A.
title	Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina
title_short	Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina
title_full	Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina
title_fullStr	Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina
title_full_unstemmed	Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina
title_sort	bird use of logging gaps in a subtropical mountain forest: the influence of habitat structure and resource abundance in the yungas of argentina
url	http://hdl.handle.net/20.500.12110/paper_03781127_v257_n1_p271_Zurita
work_keys_str_mv	AT zuritaga birduseoflogginggapsinasubtropicalmountainforesttheinfluenceofhabitatstructureandresourceabundanceintheyungasofargentina AT zuletaga birduseoflogginggapsinasubtropicalmountainforesttheinfluenceofhabitatstructureandresourceabundanceintheyungasofargentina
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Bird use of logging gaps in a subtropical mountain forest: The influence of habitat structure and resource abundance in the Yungas of Argentina

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