Conservation of North Pacific Shorebirds
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Conservation of North Pacific shorebirds Robert E. Gill, Jr., Robert W. Butler, Pave/S. Tomkovich,Taej Mundkur & Colleen M. Handel Gill, R.E., Jr., Butler, R.W., Tomkovich, PS., Mundkur, T. & Handel, C. 1995. Conservation of North Pacific shorebirds Wader Study Group Bull.77: 82-91. (Reprinted,with amendments,from Trans. 59th North American Wildlifeand Natural Resources Conference (1994), with kind permissionof the publishers.) Robert E. Gill, Jr., National BiologicalService, Anchorage, Alaska; Robert W. Butler, Canadian WildlifeService, •Delta, BritishColumbia; Pavel S. Tomkovich,Zoological Museum, •Moscow State UniversityMoscow,Russia; Taej Mundkur,Asian WetlandBureau, Universityof Malaya, Kuala Lumpur, Malaysia;Colleen M. Handel, NationalBiological Service, Anchorage,Alaska INTRODUCTION subspeciesof shorebirdsthat occur in this regionare shown in Table 1. In his introductionto the 1979 symposiumproceedings entitled "Shorebirds in Marine Environments," Frank Breeding Pitelka stressed the need for studies and conservation programsthat spannedthe western hemisphere(Pitelka The North Pacific region representsa relativelysmall 1979). In the 15 years since Pitelka's'call to arms,' the portion of the Holarctic landmass, but it is one of the locationsof many important migratoryand winteringsites world's most importantbreeding areas for shorebirds. for shorebirds have been identified in the Americas The regionnot only supportsa disproportionatelylarge (Senner & Howe 1984; Morrison& Ross 1989; Morrison& assemblageof specieswith a high degreeof endemism, Butler 1994) and in the East Asian-Australasianflyway but also hoststhe majorityof the global populationsfor (Lane & Parish 1991; Mundkur 1993; Watkins 1993). many other more widespreadtaxa. Comparedto the However, assessments of Central America, the Russian world's shorebirdfauna, that breedingin the North Pacific Far East, and most of Oceania remain incompleteor is representedby 4 of 12 families, 22 of 55 genera and 75 lacking. of 212 species(Table 1). This region, more so than anywhereelse in the world, is characterizedby the The recognitionthat shorebirdconservation required the Scolopacidae,the largest and most diverseof the protectionof habitatsthroughout the birdsrange (e.g. shorebird families. Within the North Pacific, the Morrison 1984; Davidson & Evans 1989; in Ens et al. Scolopacidaeare representedby 17 of 22 genera (77%) 1990) promptedthe establishmentof the Western and 65 of 87 species(75%). The polytypicgenera within HemisphereShorebird Reserve Network(WHSRN) in the this family are especiallywell representedwithin the Americas in 1985 (Joyce 1986). This program region. All speciesof godwits,shanks, phalaropes, complementedthe 1971 Conventionon Wetlands of dowitchersand turnstones(genera Limosa, Tringa, InternationalImportance Especially for Waterbirds Phalaropus,Limnodromus and Arenaria), 7 of 9 speciesof (Ramsar Convention,Smart 1987), recognizedby over 50 curlews(tribe Numeniini),and 17 of 19 speciesof typical countries world-wide. sandpipers(genus Calidds)breed in the North Pacific. Lastly, several of the genera and many of the species Our purposein writingthis paper is to: within this family are largely endemic to the regionor the majorityof their populationsoccur there. These include 1) describe the distributionof North Pacific shorebirds the monotypicgenera Eurynorhynchus(Spoon-billed throughouttheir annual cycle, Sandpiper) and Aphdza (Surfbird), both speciesof tattlers 2) review the locationsof and threats to importantsites (Heteroscelusincanus and H. brevipes),Black Turnstone used by North Pacific shorebirdsduring the breeding, Arenariamelanocephala, Bristle-thighed Curlew Numenius migration,and wintering periods,and tahitiensis,Western Sandpiper Caliddsmaud, all five races of Eock SandpiperC. ptilocnemis,Great Knot C. 3) outline a programfor internationalconservation of tenuirostds,American Black OystercatcherHaematopus Pacific shorebirds. bachmani,and the endangeredSpotted or Nordman's Greenshank Tdngaguttiler. DISTRIBUTION IN THE NORTH PACIFIC The biogeographicdistribution of shorebirdsbreeding withinthe NorthPacific is depictedin Figure1. Fifty-eight The North Pacificregion is the area boundedby British Columbia, Alaska and the Russian Far East. The status, distributionand scientificnames of the 93 speciesand Table 1. Statusof shorebirdswithin the NorthPacific Region. 82 Breeding Migration Wintering Species Russian Alaska British Russian Alaska British Russian Alaska British Far East Columbia Far East Columbia Far East Columbia Haematopodidae Eurasianoystercatcher Haematopus xEa xE ostralegusosculans Americanblack oystercatcherHaematopus x x x x x x bachman/ Recurvirostridae Black-winged(black-necked) stilt Himantopus + + himantopus Charadriidae Pacificgolden plover Pluvialis fulva x x x x x + x American golden plover Pluvialis domin/ca ? x + + x Grey (black-bellied)plover Pluvialis squatarela x x x x x + x Ringedplover Charadrius hiaticula tundrae x + + Semipalmated plover Charadrius + x + x x + x semipalmatus Long-billedplover Charadfius placidus +T +T bttle ringed plover Charadriusdub/us x x curon/cus Killdeer Charadrius vociferus x x + x Kentishsnowy ploverCharadrius alexandrinus + + x Lesser sandploverCharadrius mongolus x + x + stegrnanni Eurasian dotterel Charad#us mo#nellus + + + + Northernlapwing Vane#us vane#us x x Scolopacidae Black-tailedgodwit Limosa limosa x x + melanuroides Hudsoniangodwit Limosa haernastica x + x + Bar-tailedgodwit Limosa lapponicabauer/ x x x x L. I. rnenzbieri x Marbledgodwit Limosa fedoa x x x L•ttle curlew Nurnenius rninutus + Eskimo curlew Nurnenius borealis +Eb +Eb WhimbrelNurnenius phaeopus variegatus x x Numeniuspo hudsonicus x x x Brisfie-thighedcurlew Nurneniustahitiensis x x Eurasiancurlew Nurnenius arquarta + Far eastern curlew Numenius x x madagascariensis Long-billedcurlew Nurneniusamericanus x x Uplandsandpiper Bartramia Iongicauda x x + + Spottedredshank Tringa erythrepus x x RedshankTringa totanus ussuriensis x + GreenshankTringa nebularia x x Marshsandpiper Tringa stagnat#is + + Spotted(Nordman's) greenshank Tringa xE xE guttiler Greateryellowlegs Tringa melanoleuca x x x x Lesseryellowlegs Tringa fiavipes x x x x Green sandpiperTringa ochropus x x Solitarysandpiper Tringa solitaria x x x x Wood sandpiperTringa glareola x + x + Wilier Catoptrephorussemipalmatus x Terek sandpiperXenus cinereus x x Commonsandpiper Actitis hypoleucos x x Spotted sandpiperActiris macularia x x x x Grey-tailedtattler Heteroscelus brevipes x x + Wanderingtattler Heterescelus incanus x x + x x Ruddytumstone Arenaria interpres x x x x x Blackturnstone Arenaria melanocephala x x x Wilson's phalaropePhalarepus trico/or + x + x Red-neckedphalarope Phalarepus Ioba•us x x x x x x Grey (red) phalaropePhalarepus fulicarius x x x x x Eurasianwoodcock Scolopax rust/cola x + Solitarysnipe Gallinagosolitaria japonica x + Japanesesnipe Gallinagohardwick# x + Pintailsnipe Gallinagostenura + x Swinhoe'ssnipe Gallinagornegala x x Commonsnipe Gallinagog. gallinago x x Gallinagog. delicata x x x x 83 Breeding Migration Wintering Species Russian Alaska British Russian Alaska British Russian Alaska British Far Fast Columbia Far Fast Columbia Far Fast Columbia Short-billeddowitcher Limnodromus g#seus x x x x x x cau•inus Long-billeddowitcher Limnodromus x x x x x + x scolopaceus Asiatic dowitcherLimnodromus semlpalmatus + + SurfbirdAphriza virgata x x x x x Red knot Calidris c• canutus x Calidri$ c• roselaari x x + x x x Calidrisc. rogersi x x Great knot Calidris tenuirostris x x SanderlingCalidris alba x x x x x x Semipalmatedsandpiper Calidris pusilia + x x x Western sandpiperCalidris mauri x x + x x x Red-necked(rufous-necked) stint Calidrls x x + ruficollis Little stint Calidris minuta + + + Temminck's stint Calidrls temminckli x + + Long-toedstint Calidrissubmlnuta x x + Least sandpiperCalidris minutilla x x x x + White-rumpedsandpiper Calldris fuscicollis x + + Baird"ssandpiper Calidris balrdii x x + x x Pectoralsandpiper Calidris melanotos x x x x x Sharp-tailedsandpiper Calidris acuminata x x + Rock sandpiperCalidris ptilocnemls couesi x x x Calidrisp. tschuktschorum x x + x x x x Calidrisp. ptilocnemis x x x Calidrisp. quarta x x x Calidrisp. kurilensis xT xT xT DunlinCalidri$ alpina pacifica x + x x x x Calidris a. arcticola x x x Calidris a. sakhalina x x ? Calidris a. kistchinski x x Calidris a. actires xT xT Curlewsandpiper Calidri$ fermginea + + + Stiltsandpiper Calldri$ himantopus x + + Broad-billedsandpiper Limicola falcinellus x sibirica Spoon-billedsandpiper Eurynorhynchus x x pygmaeus Buff-breastedsandpiper Tryngites subruficollis + x + + + RuffPhilomachus pugnax x + + + + 1. Taxonomicand venacularnames from Haymanet aL (1986), exceptwe do not recognizeCalidris paramelanotus as a species,and we includestilt sandpiperwithin Calidds. 2. Breeding(May-June): (x) = significantportion of a populationof a speciesor subspeciesbreeds within this region;(+) = breedsin lownumbers withina region. Migration(July-October and March-May):(x) = occursin significantnumbers within the region,primarily on coastalor intertidal habitats;(+) -- occursregularly but in small numberswithin the region;(?) = statusuncertain. Wintering (November-March): (x) relativelylarge numbersoccur within the region,primarily on coastalor intertidalhabitats; (+) = occursregularly but in small numberswithin the region. E = endangered, T = threatened. Source:Brazil (1991), Campbell et al. (1990),Flint et al. (1984),Gabrielson and Lincoln(1959), R. Gill (unpublisheddata),