Late-Summer Presence of the Patagonian Tyrant, Colorhamphus Parvirostris (Darwin) on Navarino Island, Cape Horn County, Chile Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Available Formats

Dublin Core: XML Dublin Core: JSON Dublin Core: Text Dublin Core: RDF/XML UNTL: XML Access METS: XML

Title

  • Main Title Late-Summer Presence of the Patagonian Tyrant, Colorhamphus Parvirostris (Darwin) on Navarino Island, Cape Horn County, Chile
  • Parallel Title Presencia de la Viudita, Colorhamphus Parvirostris (Darwin) a Fines de Verano en Isla Navarino, Comuna Cabo De Hornos, Chile
  • Series Title Sub-Antarctic Biocultural Conservation Program

Creator

  • Author: McGehee, Steven M.
    Creator Type: Personal
    Creator Info: Parque Etnobotánico Omora
  • Author: Rozzi, Ricardo, 1960-
    Creator Type: Personal
    Creator Info: University of North Texas; Parque Etnobotánico Omora; Universidad de Magallanes
  • Author: Anderson, Christopher B.
    Creator Type: Personal
    Creator Info: Parque Etnobotánico Omora; University of Georgia
  • Author: Ippi, Silvina
    Creator Type: Personal
    Creator Info: Parque Etnobotánico Omora; Universidad de Chile
  • Author: Vásquez, Rodrigo A.
    Creator Type: Personal
    Creator Info: Universidad de Chile
  • Author: Woodland, Sue
    Creator Type: Personal
    Creator Info: Universidad de Chile

Publisher

  • Name: Universidad de Magallanes
    Place of Publication: [Magallanes, Chile]

Date

  • Creation: 2004

Language

  • English

Description

  • Content Description: This article discusses the late-summer presence of the Patagonian tyrant, Colorhamphus parvirostris (Darwin) on Navarino Island, Cape Horn County, Chile.
  • Physical Description: 9 p.

Subject

  • Keyword: Colorhamphus parvirostris
  • Keyword: Navarino Island
  • Keyword: mist-netting
  • Keyword: reverse migration
  • Keyword: Sub-Antarctic forests
  • Keyword: Tyrannidae

Source

  • Journal: Anales Instituto Patagonia, 32, Universidad de Magallanes, 2004, pp. 1-9

Citation

  • Publication Title: Anales Instituto Patagonia
  • Volume: 32
  • Page Start: 25
  • Page End: 33
  • Peer Reviewed: True

Collection

  • Name: UNT Scholarly Works
    Code: UNTSW

Institution

  • Name: UNT College of Arts and Sciences
    Code: UNTCAS

Rights

  • Rights Access: public

Resource Type

  • Article

Format

  • Text

Identifier

  • Archival Resource Key: ark:/67531/metadc102286

Degree

  • Academic Department: Philosophy and Religion Studies

Note

  • Display Note: Abstract: The southernmost representative of the Tyrannidae, a diversified family with approximately 420 species endemic to the Americas, belongs to a monotypic genus Colorhamphus with only one species: C. parvirostris. Little is known about the Patagonian tyrant, which is considered rare throughout its breeding range and vulnerable to the forest disturbances and habitat fragmentation. Even its distribution and life history are poorly known. During the breeding season it migrates to higher latitudes (>40°S) in southern Chile and Argentina, but small numbers remain within central-southern latitudes year-round (30-40°S). In the high latitudes of Tierra del Fuego it is said to be an accidental visitor, but records of C. parvirostris are extremely rare. As part of the long-term mistnetting and bird census program at the Omora Ethnobotanical Park on Navarino Island, Cape Horn County, Chile (55°S) a total of 1,542 birds belonging to 17 species have been captured with mistnets on Navarino Island. Only 12 were C. parvirostris (<1%). Therefore, this species is indeed rare. However, from 2000 to 2003 all of the few Patagonian tyrants have been captured from late March and April. Its presence on Navarino Island could have become more frequent due to an extension of its latitudinal range associated with global climate change. However, additional observations made on successive years during late summer and fall suggest an alternative, and perhaps complementary, explanation - a short southward migration performed by some individuals prior to their northward migration. This would be the first time that this phenomena is reported for the Southern Hemisphere. Taken together these two hypotheses could re-enforce one other, whereby the southern limit of post-reproductive southerly migrations could be extending due to global warming.
Back to Top of Screen