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Population estimates of Nearctic shorebirds

Waterbirds

By:
, ORCID iD , , , , , and
https://doi.org/10.2307/1522172

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Abstract

Estimates are presented for the population sizes of 53 species of Nearctic shorebirds occurring regularly in North America, plus four species that breed occasionally. Shorebird population sizes were derived from data obtained by a variety of methods from breeding, migration and wintering areas, and formal assessments of accuracy of counts or estimates are rarely available. Accurate estimates exist only for a few species that have been the subject of detailed investigation, and the likely accuracy of most estimates is considered poor or low. Population estimates range from a few tens to several millions. Overall, population estimates most commonly fell in the range of hundreds of thousands, particularly the low hundreds of thousands; estimated population sizes for large shorebird species currently all fall below 500,000. Population size was inversely related to size (mass) of the species, with a statistically significant negative regression between log (population size) and log (mass). Two outlying groups were evident on the regression graph: one, with populations lower than predicted, included species considered either to be "at risk" or particularly hard to count, and a second, with populations higher than predicted, included two species that are hunted. Population estimates are an integral part of conservation plans being developed for shorebirds in the United States and Canada, and may be used to identify areas of key international and regional importance.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Population estimates of Nearctic shorebirds
Series title:
Waterbirds
DOI:
10.2307/1522172
Volume:
23
Issue:
3
Year Published:
2000
Language:
English
Publisher:
Waterbird Society
Contributing office(s):
Fort Collins Science Center
Description:
16 p.
First page:
337
Last page:
352