Translator Disclaimer
1 March 2012 Dramatic Declines of Semipalmated Sandpipers on their Major Wintering Areas in the Guianas, Northern South America
Author Affiliations +
Abstract

In the 1980's, aerial surveys in South America established that the main wintering areas of Semipalmated Sandpipers (Calidris pusilla) were found on the north coast of the continent, especially in the Guianas (Suriname, French Guiana and Guyana). Although population trend analyses have consistently shown declines in numbers of Semipalmated Sandpipers, especially for birds on migration in eastern North America, until now surveys had not been undertaken to determine whether such declines were reflected in numbers on the main wintering areas. Between December 2008 and January 2011, aerial surveys of major wintering areas in Suriname (3), French Guiana (2) and Guyana (1) were carried out. Results showed dramatic declines, with an overall total of only 21% of the 1980s total—a decrease of 79%. A variety of reasons may have contributed to the declines and include habitat changes, range shifts, sustained hunting, or increases in predation, pollution or severe weather.

R. I. Guy Morrison, David S. Mizrahi, R. Kenyon Ross, Otte H. Ottema, Nyls de Pracontal, and Andy Narine "Dramatic Declines of Semipalmated Sandpipers on their Major Wintering Areas in the Guianas, Northern South America," Waterbirds 35(1), 120-134, (1 March 2012). https://doi.org/10.1675/063.035.0112
Received: 26 July 2011; Accepted: 1 December 2011; Published: 1 March 2012
JOURNAL ARTICLE
15 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top