Environmental characteristics drive variation in Amazonian understorey bird assemblages
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/14677 |
Resumo: | Tropical bird assemblages display patterns of high alpha and beta diversity and, as tropical birds exhibit strong habitat specificity, their spatial distributions are generally assumed to be driven primarily by environmental heterogeneity and interspecific interactions. However, spatial distributions of some Amazonian forest birds are also often restricted by large rivers and other large-scale topographic features, suggesting that dispersal limitation may also play a role in driving species' turnover. In this study, we evaluated the effects of environmental characteristics, topographic and spatial variables on variation in local assemblage structure and diversity of birds in an old-growth forest in central Amazonia. Birds were mist-netted in 72 plots distributed systematically across a 10,000 ha reserve in each of three years. Alpha diversity remained stable through time, but species composition changed. Spatial variation in bird-assemblage structure was significantly related to environmental and topographic variables but not strongly related to spatial variables. At a broad scale, we found bird assemblages to be significantly distinct between two watersheds that are divided by a central ridgeline. We did not detect an effect of the ridgeline per se in driving these patterns, indicating that most birds are able to fly across it, and that differences in assemblage structure between watersheds may be due to unmeasured environmental variables or unique combinations of measured variables. Our study indicates that complex geography and landscape features can act together with environmental variables to drive changes in the diversity and composition of tropical bird assemblages at local scales, but highlights that we still know very little about what makes different parts of tropical forest suitable for different species. © 2017 Menger et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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Menger, JulianaMagnusson, William ErnestAnderson, Marti J.Schlegel, MartinPe'Er, GuyHenle, Klaus2020-04-24T17:00:11Z2020-04-24T17:00:11Z2017https://repositorio.inpa.gov.br/handle/1/1467710.1371/journal.pone.0171540Tropical bird assemblages display patterns of high alpha and beta diversity and, as tropical birds exhibit strong habitat specificity, their spatial distributions are generally assumed to be driven primarily by environmental heterogeneity and interspecific interactions. However, spatial distributions of some Amazonian forest birds are also often restricted by large rivers and other large-scale topographic features, suggesting that dispersal limitation may also play a role in driving species' turnover. In this study, we evaluated the effects of environmental characteristics, topographic and spatial variables on variation in local assemblage structure and diversity of birds in an old-growth forest in central Amazonia. Birds were mist-netted in 72 plots distributed systematically across a 10,000 ha reserve in each of three years. Alpha diversity remained stable through time, but species composition changed. Spatial variation in bird-assemblage structure was significantly related to environmental and topographic variables but not strongly related to spatial variables. At a broad scale, we found bird assemblages to be significantly distinct between two watersheds that are divided by a central ridgeline. We did not detect an effect of the ridgeline per se in driving these patterns, indicating that most birds are able to fly across it, and that differences in assemblage structure between watersheds may be due to unmeasured environmental variables or unique combinations of measured variables. Our study indicates that complex geography and landscape features can act together with environmental variables to drive changes in the diversity and composition of tropical bird assemblages at local scales, but highlights that we still know very little about what makes different parts of tropical forest suitable for different species. © 2017 Menger et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Volume 12, Número 2Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBirdGeographyLandscapeNonhumanSpecies CompositionTropical Rain ForestUnderstoreyWatershedAnimalsBiodiversityBrasilEcosystemForestPopulation DynamicsSpecies DifferenceAnimalssBiodiversityBirdsBrasilEcosystemForestsPopulation DynamicsSpecies SpecificityEnvironmental characteristics drive variation in Amazonian understorey bird assemblagesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePLoS ONEengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf1669107https://repositorio.inpa.gov.br/bitstream/1/14677/1/artigo-inpa.pdfe279c2aa56b047ef6f496923c5b79158MD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/14677/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/146772020-07-14 10:02:21.356oai:repositorio:1/14677Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T14:02:21Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
title |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
spellingShingle |
Environmental characteristics drive variation in Amazonian understorey bird assemblages Menger, Juliana Bird Geography Landscape Nonhuman Species Composition Tropical Rain Forest Understorey Watershed Animals Biodiversity Brasil Ecosystem Forest Population Dynamics Species Difference Animalss Biodiversity Birds Brasil Ecosystem Forests Population Dynamics Species Specificity |
title_short |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
title_full |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
title_fullStr |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
title_full_unstemmed |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
title_sort |
Environmental characteristics drive variation in Amazonian understorey bird assemblages |
author |
Menger, Juliana |
author_facet |
Menger, Juliana Magnusson, William Ernest Anderson, Marti J. Schlegel, Martin Pe'Er, Guy Henle, Klaus |
author_role |
author |
author2 |
Magnusson, William Ernest Anderson, Marti J. Schlegel, Martin Pe'Er, Guy Henle, Klaus |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Menger, Juliana Magnusson, William Ernest Anderson, Marti J. Schlegel, Martin Pe'Er, Guy Henle, Klaus |
dc.subject.eng.fl_str_mv |
Bird Geography Landscape Nonhuman Species Composition Tropical Rain Forest Understorey Watershed Animals Biodiversity Brasil Ecosystem Forest Population Dynamics Species Difference Animalss Biodiversity Birds Brasil Ecosystem Forests Population Dynamics Species Specificity |
topic |
Bird Geography Landscape Nonhuman Species Composition Tropical Rain Forest Understorey Watershed Animals Biodiversity Brasil Ecosystem Forest Population Dynamics Species Difference Animalss Biodiversity Birds Brasil Ecosystem Forests Population Dynamics Species Specificity |
description |
Tropical bird assemblages display patterns of high alpha and beta diversity and, as tropical birds exhibit strong habitat specificity, their spatial distributions are generally assumed to be driven primarily by environmental heterogeneity and interspecific interactions. However, spatial distributions of some Amazonian forest birds are also often restricted by large rivers and other large-scale topographic features, suggesting that dispersal limitation may also play a role in driving species' turnover. In this study, we evaluated the effects of environmental characteristics, topographic and spatial variables on variation in local assemblage structure and diversity of birds in an old-growth forest in central Amazonia. Birds were mist-netted in 72 plots distributed systematically across a 10,000 ha reserve in each of three years. Alpha diversity remained stable through time, but species composition changed. Spatial variation in bird-assemblage structure was significantly related to environmental and topographic variables but not strongly related to spatial variables. At a broad scale, we found bird assemblages to be significantly distinct between two watersheds that are divided by a central ridgeline. We did not detect an effect of the ridgeline per se in driving these patterns, indicating that most birds are able to fly across it, and that differences in assemblage structure between watersheds may be due to unmeasured environmental variables or unique combinations of measured variables. Our study indicates that complex geography and landscape features can act together with environmental variables to drive changes in the diversity and composition of tropical bird assemblages at local scales, but highlights that we still know very little about what makes different parts of tropical forest suitable for different species. © 2017 Menger et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2020-04-24T17:00:11Z |
dc.date.available.fl_str_mv |
2020-04-24T17:00:11Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.inpa.gov.br/handle/1/14677 |
dc.identifier.doi.none.fl_str_mv |
10.1371/journal.pone.0171540 |
url |
https://repositorio.inpa.gov.br/handle/1/14677 |
identifier_str_mv |
10.1371/journal.pone.0171540 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 12, Número 2 |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
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PLoS ONE |
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PLoS ONE |
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