2011b. Update to the status of the red knot Calidris canutus in the western hemisphere

New information indicates that the rufa subspecies of the Red Knot comprises three biogeographically distinct populations wintering in Tierra del Fuego, Maranhão and Florida, respectively, and that the roselaari subspecies is largely or wholly confined to the Pacific coast of the Americas on passage...

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Bibliographic Details
Main Authors: Lawrence J. Niles, Humphrey P. Sitters, Amanda D. Dey, W. Atkinson, Allan J. Baker, Roberto Carmona, Kathleen E, Nigel A. Clark, Carmen Espoz, Patricia M. Gonzalez, Brian A. Harrington, Daniel E. Hernandez, Kevin S. Kalasz, Ricardo Matus, Clive D. T. Minton, R. I. Guy Morrison, Mark K, William Pitts, Robert A. Robinson, Inês L. Serrano, Limosa Old Ebford Lane Ebford
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2011
Subjects:
to be in the recent Status of the Red Knot
Calidris canutus rufa
in the Western
Pacific
Calidris canutus
Red Knot
Alaska
Tierra del Fuego
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.580.9939
http://www.defenders.org/publications/status_of_the_red_knot_february_2008.pdf
Description
Summary:New information indicates that the rufa subspecies of the Red Knot comprises three biogeographically distinct populations wintering in Tierra del Fuego, Maranhão and Florida, respectively, and that the roselaari subspecies is largely or wholly confined to the Pacific coast of the Americas on passage and in winter. Depending on the subspecific status of large numbers of knots seen in Alaska in 1975-1980, the roselaari subspecies might have declined from 100,000+ to <10,000 or it has always had a small population, probably <10,000. In either case the present population is small and vulnerable and deserves protection. All three wintering populations of rufa are now substantially lower than they were stated

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