Dinámica estacional y patrones de distribución de la avifauna asociada a humedales subantárticos en la Reserva de Biosfera Cabo de Hornos (54-55°S), Chile

Description:

This article discusses the seasonal dynamics and distribution patterns of birds associated to the sub-Antarctic wetlands in Cape Horn Biosphere Reserve (54-55°S), Chile.

Creator(s):
Creation Date: 2009
Partner(s):
UNT College of Arts and Sciences
Collection(s):
UNT Scholarly Works
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Total Uses: 131
Past 30 days: 3
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Creator (Author):
Ibarra, J. Tomás

Universidad Católica de Chile; Universidad de Magallanes

Creator (Author):
Rozzi, Ricardo, 1960-

University of North Texas; Universidad de Magallanes

Creator (Author):
Gilabert, Horacio

Universidad Católica de Chile

Creator (Author):
Anderson, Christopher B.

Universidad de Magallanes

Creator (Author):
McGehee, Steven M.

Universidad de Magallanes; University of Victoria

Creator (Author):
Bonacic, Cristián

Universidad Católica de Chile

Publisher Info:
Place of Publication: [Saint Louis, Missouri]
Date(s):
  • Creation: 2009
Description:

This article discusses the seasonal dynamics and distribution patterns of birds associated to the sub-Antarctic wetlands in Cape Horn Biosphere Reserve (54-55°S), Chile.

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Note:

Abstract: Little is known about bird ecology in sub-Antarctic ecosystems of the Cape Horn Reserve (CHBR), Chile. The authors examined the role of altitude, seashore distance, lake size, season, and vegetation cover in affecting bird diversity and abundance on Navarino Island (54-55°S, 67°W) in the CHBR. The authors determined avian community composition, species richness and relative abundance for wetlands and their adjacent habitats on a seasonal basis. A total of 56 species belonging to 10 orders and 25 families were recorded, and significant seasonal changes for bird species (P = 0.001) and abundance (P < 0.01) were observed, with 33.9% residents, 48.2% winter migrants, and 17.9% with unknown migratory status. The distance of wetlands from the coastline was the main predictor variable for annual species richness (P < 0.01) and total avian abundance (P < 0.05). Wetlands far from the seashore and at higher altitudes had lower diversity and abundance, although the change in elevation was relatively slight (< 300 m). These data show the seasonal patterns and dynamics, as well as the major underlying mechanisms, for birds of wetlands and adjacent habitats in the CHBR.

Physical Description:

18 p.

Language(s):
Subject(s):
Keyword(s): Avifauna | wetlands | seasonal variations | Cape Horn | Navarino Island | sub-Antarctic
Source: Ornitologia Neotropical, 2009, Saint Louis: Neotropical Ornithological Society, pp. 321-337
Alternate Title: Seasonal dynamics and distribution patterns of birds associated to sub-Antarctic wetlands in the Cape Horn Biosphere Reserve (54-55°S), Chile
Series Title: Sub-Antarctic Biocultural Conservation Program
Partner:
UNT College of Arts and Sciences
Collection:
UNT Scholarly Works
Identifier:
  • ARK: ark:/67531/metadc97949
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Ornitologia Neotropical
Volume: 20
Issue: 3
Page Start: 321
Page End: 337
Pages: 18
Peer Reviewed: Yes