Human-modified landscapes narrow the isotopic niche of neotropical birds
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00442-021-04908-9 http://hdl.handle.net/11449/210218 |
Resumo: | Deforestation and habitat loss resulting from land use changes are some of the utmost anthropogenic impacts that threaten tropical birds in human-modified landscapes (HMLs). The degree of these impacts on birds' diet, habitat use, and ecological niche can be measured by isotopic analysis. We investigated whether the isotopic niche width, food resources, and habitat use of bird trophic guilds differed between HMLs and natural landscapes (NLs) using stable carbon (delta C-13) and nitrogen isotopes (delta N-15). We analyzed feathers of 851 bird individuals from 28 landscapes in the Brazilian Atlantic Forest. We classified landscapes into two groups according to the percentage of forest cover (HMLs <= 30%; NLs >= 47%), and compared the isotopic niche width and mean values of delta C-13 and delta N-15 for each guild between landscape types. The niches of frugivores, insectivores, nectarivores, and omnivores were narrower in HMLs, whereas granivores showed the opposite pattern. In HMLs, nectarivores showed a reduction of 44% in niche width, while granivores presented an expansion of 26%. Individuals in HMLs consumed more resources from agricultural areas (C-4 plants), but almost all guilds showed a preference for forest resources (C-3 plants) in both landscape types, except granivores. Degraded and fragmented landscapes typically present a lower availability of habitat and food resources for many species, which was reflected by the reduction in niche width of birds in HMLs. Therefore, to protect the diversity of guilds in HMLs, landscape management strategies that offer birds more diverse habitats must be implemented in tropical regions. |
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Human-modified landscapes narrow the isotopic niche of neotropical birdsCarbonEcological nicheNitrogenStable isotopesTrophic ecologyDeforestation and habitat loss resulting from land use changes are some of the utmost anthropogenic impacts that threaten tropical birds in human-modified landscapes (HMLs). The degree of these impacts on birds' diet, habitat use, and ecological niche can be measured by isotopic analysis. We investigated whether the isotopic niche width, food resources, and habitat use of bird trophic guilds differed between HMLs and natural landscapes (NLs) using stable carbon (delta C-13) and nitrogen isotopes (delta N-15). We analyzed feathers of 851 bird individuals from 28 landscapes in the Brazilian Atlantic Forest. We classified landscapes into two groups according to the percentage of forest cover (HMLs <= 30%; NLs >= 47%), and compared the isotopic niche width and mean values of delta C-13 and delta N-15 for each guild between landscape types. The niches of frugivores, insectivores, nectarivores, and omnivores were narrower in HMLs, whereas granivores showed the opposite pattern. In HMLs, nectarivores showed a reduction of 44% in niche width, while granivores presented an expansion of 26%. Individuals in HMLs consumed more resources from agricultural areas (C-4 plants), but almost all guilds showed a preference for forest resources (C-3 plants) in both landscape types, except granivores. Degraded and fragmented landscapes typically present a lower availability of habitat and food resources for many species, which was reflected by the reduction in niche width of birds in HMLs. Therefore, to protect the diversity of guilds in HMLs, landscape management strategies that offer birds more diverse habitats must be implemented in tropical regions.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Sao Paulo, Dept Ciencias Florestais, Lab Ecol Manejo & Conservaeao Fauna Silvestre LEM, Escola Super Agr Luiz de Queiroz, Av Padua Dias 11, BR-13418900 Piracicaba, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, Lab Ecol Isotop, Av Centenario 303, BR-13416903 Piracicaba, SP, BrazilUniv Sao Paulo, Museu Zool, Secao Aves, Av Nazare 481, BR-04263000 Sao Paulo, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Dept Biodiversidade, Av 24-A 1515, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Campinas, Inst Biol, Dept Biol Anim, Lab Interacoes Vertebrados Plantas, Rua Monteiro Lobato 255, BR-13083862 Campinas, SP, BrazilUniv Estadual Paulista, Fac Ciencias, Dept Ciencias Biol, Av Eng Luiz Edmundo Carrijo Coube 14-01, BR-17033360 Bauru, SP, BrazilUniv Fed Sao Carlos, Ctr Ciencias & Tecnol Sustentabilidade, Dept Ciencias Ambientais, Rodovia Joao Leme dos Santos SP-264 Km 110, BR-18052780 Sorocaba, SP, BrazilInst Chico Mendes Conservacao Biodiversidade, Ctr Nacl Pesquisa & Conservacao Mamiferos Carnivo, Estr Municipal Hisaichi Takebayashi 8600, BR-12952011 Atibaia, SP, BrazilInst Nacl Mata Atlantica, Av Jose Ruschi 4, BR-29650000 Santa Teresa, ES, BrazilInst Procarnivoros, Av Horacio Netto 1030,Parque Edmundo Zanoni, BR-12945010 Atibaia, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Dept Biodiversidade, Av 24-A 1515, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Paulista, Fac Ciencias, Dept Ciencias Biol, Av Eng Luiz Edmundo Carrijo Coube 14-01, BR-17033360 Bauru, SP, BrazilFAPESP: 2010/05343-5FAPESP: 2011/06782-5FAPESP: 2011/04046-0FAPESP: 2018-05970-1FAPESP: 2020/076190CAPES: 88882.328664/2019-01CNPq: 300744/2020-0CAPES: 001-CAPES PNPD 2013/1723CNPq: 308632/2018-4CNPq: 302291/2015-6CNPq: 308337/2019-0CNPq: 304742/2019-8SpringerUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Universidade Federal de São Carlos (UFSCar)Inst Chico Mendes Conservacao BiodiversidadeInst Nacl Mata AtlanticaInst ProcarnivorosNavarro, Ana BeatrizMagioli, MarceloBogoni, Juliano AndreMoreira, Marcelo ZachariasSilveira, Luis FabioAlexandrino, Eduardo RobertoApolinario da Luz, Daniela TomasioPizo, Marco Aurelio [UNESP]Silva, Wesley RodriguesOliveira, Vanessa Cristina deDonatelli, Reginaldo Jose [UNESP]Christianini, AlexanderPiratelli, Augusto JoaoMicchi Barros Ferraz, Katia Maria Paschoaletto2021-06-25T15:01:45Z2021-06-25T15:01:45Z2021-04-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14http://dx.doi.org/10.1007/s00442-021-04908-9Oecologia. New York: Springer, 14 p., 2021.0029-8549http://hdl.handle.net/11449/21021810.1007/s00442-021-04908-9WOS:000638540000001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOecologiainfo:eu-repo/semantics/openAccess2024-04-23T15:23:16Zoai:repositorio.unesp.br:11449/210218Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:53:28.729210Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
title |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
spellingShingle |
Human-modified landscapes narrow the isotopic niche of neotropical birds Navarro, Ana Beatriz Carbon Ecological niche Nitrogen Stable isotopes Trophic ecology |
title_short |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
title_full |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
title_fullStr |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
title_full_unstemmed |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
title_sort |
Human-modified landscapes narrow the isotopic niche of neotropical birds |
author |
Navarro, Ana Beatriz |
author_facet |
Navarro, Ana Beatriz Magioli, Marcelo Bogoni, Juliano Andre Moreira, Marcelo Zacharias Silveira, Luis Fabio Alexandrino, Eduardo Roberto Apolinario da Luz, Daniela Tomasio Pizo, Marco Aurelio [UNESP] Silva, Wesley Rodrigues Oliveira, Vanessa Cristina de Donatelli, Reginaldo Jose [UNESP] Christianini, Alexander Piratelli, Augusto Joao Micchi Barros Ferraz, Katia Maria Paschoaletto |
author_role |
author |
author2 |
Magioli, Marcelo Bogoni, Juliano Andre Moreira, Marcelo Zacharias Silveira, Luis Fabio Alexandrino, Eduardo Roberto Apolinario da Luz, Daniela Tomasio Pizo, Marco Aurelio [UNESP] Silva, Wesley Rodrigues Oliveira, Vanessa Cristina de Donatelli, Reginaldo Jose [UNESP] Christianini, Alexander Piratelli, Augusto Joao Micchi Barros Ferraz, Katia Maria Paschoaletto |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) Universidade Federal de São Carlos (UFSCar) Inst Chico Mendes Conservacao Biodiversidade Inst Nacl Mata Atlantica Inst Procarnivoros |
dc.contributor.author.fl_str_mv |
Navarro, Ana Beatriz Magioli, Marcelo Bogoni, Juliano Andre Moreira, Marcelo Zacharias Silveira, Luis Fabio Alexandrino, Eduardo Roberto Apolinario da Luz, Daniela Tomasio Pizo, Marco Aurelio [UNESP] Silva, Wesley Rodrigues Oliveira, Vanessa Cristina de Donatelli, Reginaldo Jose [UNESP] Christianini, Alexander Piratelli, Augusto Joao Micchi Barros Ferraz, Katia Maria Paschoaletto |
dc.subject.por.fl_str_mv |
Carbon Ecological niche Nitrogen Stable isotopes Trophic ecology |
topic |
Carbon Ecological niche Nitrogen Stable isotopes Trophic ecology |
description |
Deforestation and habitat loss resulting from land use changes are some of the utmost anthropogenic impacts that threaten tropical birds in human-modified landscapes (HMLs). The degree of these impacts on birds' diet, habitat use, and ecological niche can be measured by isotopic analysis. We investigated whether the isotopic niche width, food resources, and habitat use of bird trophic guilds differed between HMLs and natural landscapes (NLs) using stable carbon (delta C-13) and nitrogen isotopes (delta N-15). We analyzed feathers of 851 bird individuals from 28 landscapes in the Brazilian Atlantic Forest. We classified landscapes into two groups according to the percentage of forest cover (HMLs <= 30%; NLs >= 47%), and compared the isotopic niche width and mean values of delta C-13 and delta N-15 for each guild between landscape types. The niches of frugivores, insectivores, nectarivores, and omnivores were narrower in HMLs, whereas granivores showed the opposite pattern. In HMLs, nectarivores showed a reduction of 44% in niche width, while granivores presented an expansion of 26%. Individuals in HMLs consumed more resources from agricultural areas (C-4 plants), but almost all guilds showed a preference for forest resources (C-3 plants) in both landscape types, except granivores. Degraded and fragmented landscapes typically present a lower availability of habitat and food resources for many species, which was reflected by the reduction in niche width of birds in HMLs. Therefore, to protect the diversity of guilds in HMLs, landscape management strategies that offer birds more diverse habitats must be implemented in tropical regions. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T15:01:45Z 2021-06-25T15:01:45Z 2021-04-09 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s00442-021-04908-9 Oecologia. New York: Springer, 14 p., 2021. 0029-8549 http://hdl.handle.net/11449/210218 10.1007/s00442-021-04908-9 WOS:000638540000001 |
url |
http://dx.doi.org/10.1007/s00442-021-04908-9 http://hdl.handle.net/11449/210218 |
identifier_str_mv |
Oecologia. New York: Springer, 14 p., 2021. 0029-8549 10.1007/s00442-021-04908-9 WOS:000638540000001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Oecologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
14 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128579453583360 |