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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/128781
Title: 
Longevity Records and Signs of Aging in Marsh Antwren Formicivora acutirostris (Thamnophilidae)
Author(s): 
Institution: 
  • Univ Fed Parana
  • Mater Nat Inst Estudos Ambientais
  • Universidade Estadual Paulista (UNESP)
ISSN: 
1559-4491
Sponsorship: 
  • Fundacao Grupo Boticario de Protecao a Natureza (FGBPN)
  • Fundo Nacional do Meio Ambiente (FNMA)
  • Fundo Brasileiro para a Biodiversidade (FUNBIO)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Sponsorship Process Number: 
  • Fundacao Grupo Boticario de Protecao a Natureza (FGBPN): 0682/20052
  • Fundacao Grupo Boticario de Protecao a Natureza (FGBPN): 0740/20071
  • Fundacao Grupo Boticario de Protecao a Natureza (FGBPN): 0908_20112
  • Fundacao Grupo Boticario de Protecao a Natureza (FGBPN): BL0001_20111
  • Fundacao Grupo Boticario de Protecao a Natureza (FGBPN): 0004_2012
  • CAPES: 2599/2010
  • CNPq: 571334/2008-3
Abstract: 
Longevity records inform demographic studies and our understanding of avian senescence evolution, yet studies on free-ranging species are rare, especially in the tropics. Here we provide minimum longevity records for the Marsh Antwren Formicivora acutirostris (Thamnophilidae), a small (9.8 g) territorial bird inhabiting tidal marshes in southern Brazil. We recorded a 16.2-year-old male and a 14.2-year-old female, both breeding before they were last seen, as well as 31 individuals between 6-10.2 years of age. There was no difference in the sex-ratio between these individuals. The oldest male was nearly 2 years older than the oldest thamnophilid recorded to date, and twice as old as the oldest recorded breeding individual. We also observed behaviors which we interpret as signs of aging, such as the isolation of the old female and her apparent indifference to her mate, and frequent territory disputes involving the old male and floater males.
Issue Date: 
1-Mar-2015
Citation: 
Wilson Journal Of Ornithology. Waco: Wilson Ornithological Soc, v. 127, n. 1, p. 98-U180, 2015.
Time Duration: 
98-U180
Publisher: 
Wilson Ornithological Soc
Keywords: 
  • Atlantic Forest
  • Brazil
  • longevity
  • maximum breeding age
  • senescence
Source: 
http://wjoonline.org/doi/abs/10.1676/14-074.1
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/128781
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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