Population estimates of North American shorebirds, 2012

Publication Type:

Journal Article

Source:

Wader Study Group Bulletin, International Wader Study Group, Volume 119, Issue 3, p.178-194 (2012)

Call Number:

A12AND01IDUS

URL:

http://www.shorebirdplan.org/wp-content/uploads/2013/03/ShorePopulationAndresEtAl2012.pdf, http://www.waderstudygroup.org/pubs/wsgbull/v119i3/119_178a.pdf

Keywords:

Actitis macularia, American Avocet, American golden-plover, Bartramia longicauda, black-bellied plover, black-necked stilt, Calidris alba, Calidris mauri, Calidris minutilla, Calidris pusilla, Catoptrophorus semipalmatus, Charadrius alexandrinus, Charadrius montanus, Charadrius semipalmatus, Charadrius vociferous, greater yellowlegs, Himantopus mexicanus, Hudsonian godwit, killdeer, least sandpiper, Lesser Yellowlegs, Limosa fedoa, Limosa haemastica, Long-billed Curlew, marbled godwit, mountain plover, Numenius americanus, Numenius phaeopus, Pluvialis dominica, Pluvialis squatarola, Recurvirostra americana, sanderling, semipalmated plover, semipalmated sandpiper, shorebirds, snowy plover, solitary sandpiper, Spotted Sandpiper, Tringa flavipes, Tringa melanoleuca, Tringa solitaria, upland sandpiper, western sandpiper, whimbrel, willet

Abstract:

The authors re-assessed the population size and trend of 52 species and 75 taxa of shorebirds that occur in North America by reviewing published papers, soliciting unpublished data, and seeking the opinions of experts. New information resulted in changing population estimates for 35 of the 71 taxa that could be compared directly to the estimates published in 2006; from this comparison, 28 estimates increased and seven decreased. Almost all of the increases (88%) were the result of more comprehensive surveys being conducted or re-analyses of existing data rather than actual increases in numbers. Retaining the previous estimate was almost always due to a lack of new information. Recent trend analysis indicates that many shorebird populations have stabilized in recent years after large declines during the early 1980s and mid-1990s. Although many shorebird populations listed as threatened or endangered by the U.S. and Canadian governments have increasing population trends, none have reached recovery targets. Information on population trends remains virtually unknown for 25% of the shorebirds occurring in North America, and surveys are needed to determine the state of these populations.

Notes:

Suggested Citation: Andres, B.A., Smith, P.A., Morrison, R.I.G., Gratto-Trevor, C.L., Brown, S.C. & Friis, C.A. 2012. Population estimates of North American shorebirds, 2012. Wader Study Group Bull. 119(3): 178–194.

Location: ELECTRONIC FILE - Zoology