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Sensitivity to fragmentation and spatial distribution of birds in forest fragments of northern paraná Biota Neotropica
Marques,Fernanda Cristina; Anjos,Luiz dos.
In this study we investigated the relationship between the sensitivity to forest fragmentation of bird species and their habitat spatial distribution. We hypothesized that a homogenous spatial distribution is associated to habitat-generalist species, which would tend to be less sensitive to forest fragmentation; in contrast, a heterogeneous spatial distribution would drive to an increase of sensitivity to forest fragmentation. We concentrated on analyses of the suboscine birds, which are known to be closely associated to microhabitats. Field data was obtained in the Parque Estadual Mata dos Godoy (23°27′ S, 51°15′ W), southern Brazilian Atlantic forest. This reserve has high Biotic Integrity levels, with a relatively high number of recorded suboscines....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microhabitat; Habitat-specialization; Suboscine birds.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300116
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Decadal persistence of frugivorous birds in tropical forest fragments of northern Paraná Biota Neotropica
Zaiden,Tiago; Marques,Fernanda Cristina; Medeiros,Hugo Reis; Anjos,Luiz dos.
Forest fragmentation is a major cause of loss of species. We evaluated the local extinction of medium-large frugivorous bird species in six forest fragments of northern Paraná: the Parque Estadual Mata dos Godoy (PEMG), the largest and most preserved forest fragment in the region, and five other fragments. Fixed-width point counts and line transects were conducted along trails in the PEMG for 10 days: from September 2010 to March 2011, and from August 2011 to November 2011. Avian surveys in each of the other forest fragments were made over four days from October to December 2011. We compared data with a previous census carried out 10 years earlier. No extinction events were recorded from the PEMG. However, the relative abundance of species significantly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest fragmentation; Large frugivorous birds; Extinction debit.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200107
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