Diversity and singularity of the avifauna in the austral peat bogs of the Cape Horn Biosphere Reserve, Chile

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This article discusses diversity and singularity of the avifauna in the austral peat bogs of the Cape Horn Biosphere Reserve, Chile.

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15 p.

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Ibarra, J. Tomás; Anderson, Christopher B.; Altamirano, Tomás A.; Rozzi, Ricardo, 1960- & Bonacic, Cristián 2010.

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This article discusses diversity and singularity of the avifauna in the austral peat bogs of the Cape Horn Biosphere Reserve, Chile.

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15 p.

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Abstract: Sphagnum-dominated peat bogs that are strongly embedded within the southern temperate forest matrix are increasingly being used for agriculture. Nevertheless, little is known about their biodiversity. Moreover, the remote areas of southern Chile where peat bogs are found, such as Cape Horn Biosphere Reserve (CHBR, 54-55°S), where birds are the most diverse and best represented group of vertebrates, have not been well-investigated. With the aim to broaden this knowledge in the CHBR, the authors studied the diversity of the avian assemblage in peat blogs on Navarino Island. The authors compared the composition of avian species between wetlands with and without peat bogs to test if Sphagnum bogs represented a singular habitat for birds in this area. Furthermore, the 37 bird species recorded in these habitats were classified according to guild structure. The community similarity values showed that peat bogs hosted a bird composition that was different from that present in wetlands without Sphagnum, suggesting that peat bogs are a singular type of habitat for birds in the CHBR. The most frequently feeding groups recorded in these wetlands were insectivores (48.7%), followed by omnivores (23.1%). The authors' results showed that, in contrast to previous studies of birds in peat bogs, these environments constituted a distinct wetland habitat for feeding, reproduction and sheltering for some species in the CHBR. Thus, plans for the conservation and rational use of peat ecosystems should consider the high value of these habitats for biodiversity on a landscape scale, especially for birds of the southernmost extreme of the Americas.

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  • Ciencia e Investigación Agraria, 2010, Santiago: Universidad Católica de Chile, pp. 29-43

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  • Publication Title: Ciencia e Investigación Agraria
  • Volume: 37
  • Issue: 1
  • Page Start: 29
  • Page End: 43
  • Pages: 15
  • Peer Reviewed: Yes

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  • 2010

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  • Aug. 17, 2012, 12:16 p.m.

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  • July 8, 2013, 10:17 a.m.

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Ibarra, J. Tomás; Anderson, Christopher B.; Altamirano, Tomás A.; Rozzi, Ricardo, 1960- & Bonacic, Cristián. Diversity and singularity of the avifauna in the austral peat bogs of the Cape Horn Biosphere Reserve, Chile, article, 2010; [Santiago, Chile]. (digital.library.unt.edu/ark:/67531/metadc97950/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.