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Voie de migration Est-Asiatique

Table 1. Populations d'Anatidae de la Voie de migration Est-Asiatique.
The 1% thresholds in parentheses are provisional numerical criteria for use in this Atlas, and are not yet intended as official 1% levels for the identification of sites of international importance. Population trends follow Rose & ; Scott (1997) and a blank indicates the absence of any information.
Species or subspecies	Population	Population Estimates		Threshold used to select key sites
Species or subspecies	Population	Size	Trend	Threshold used to select key sites
* Dendrocygna bicolor	Southern Asia / Myanmar	20,000	Decreasing	200
Dendrocygna javanica	Eastern / Southeastern Asia	100,000-1,000,000	Decreasing	(5,000)
Oxyura leucocephala	Southern Asia (wintering)	300	Decreasing	3
* Cygnus olor	Eastern Asia	1,000-3,000	Decreasing	20
* Cygnus cygnus cygnus	Central Siberia / Eastern Asia	60,000		600
* Cygnus columbianus jankowskii	Central Siberia / Eastern Asia	40,000		400
Anser cygnoides	Entire population : Eastern Asia	30,000-50,000	Decreasing	400
* Anser fabalis middendorffii	Eastern Taiga (breeding)	50,000-70,000	Decreasing	600
* Anser fabalis serrirostris	Eastern Tundra (breeding)	45,000-65,000	Decreasing	550
* Anser albifrons frontalis	Eastern Asia	100,000-150,000	Decreasing	1,250
Anser erythropus	Eastern Asia	14,000	Decreasing	140
* Anser anser rubrirostris	Eastern Asia	50,000-100,000		750
Anser indicus	China (wintering)	15,500-17,500		160
Anser indicus	Southern Asia / Myanmar (wintering)	16,800–18,900		180
Anser caerulescens caerulescens	Northern Far East / Eastern Asia	< ;300		3
* Anser caerulescens caerulescens	Northern Far East / Alaska / California / Mexico	65,000		650
* Anser canagicas	Entire population : Alaska / Northeastern Siberia / Aleutian Islands	45,000-80,000	Stable	600
* Branta canadensis leucopareia	Eastern Asia	0		1
* Branta bernicla nigricans	Eastern Pacific (wintering)	126,500	Stable	1,270
* Branta bernicla nigricans	Eastern Asia	5,000		50
Tadorna ferruginea	Eastern Asia	50,000-100,000		(750)
Tadorna cristata	Eastern Asia	< ;50		1
Tadorna tadorna	Eastern Asia	100,000-150,000		1,250
Cairina scutulata	India - Myanmar	170		2
Cairina scutulata	Southeastern Asia	130		1
Cairina scutulata	Indonesia	150		2
* Sarkidiornis melanotos melanotos	Southern / Southeastern Asia	6,000	Decreasing	60
Nettapus coromandelianus coromandelianus	Eastern / Southeastern Asia	25,000-1,000,000		(1,000)
Aix galericulata	China	20,000	Decreasing	200
Aix galericulata	Korea	5,000	Decreasing	50
Aix galericulata	Japan	40,000	Stable	400
* Anas strepera strepera	Eastern Asia	500,000-1,000,000	Decreasing	(7,500)
Anas falcata	Entire population : Eastern Asia	500,000-1,000,000	Decreasing	(7,500)
* Anas penelope	Southern Asia (wintering)	250,000	Increasing	2,500
* Anas penelope	Eastern Asia	500,000-1,000,000	Decreasing	(7,500)
* Anas platyrhynchos platyrhynchos	Eastern Asia	>1,500,000		(20,000)
Anas poecilorhyncha zonorhyncha	Eastern Asia	800,000-1,600,000	Decreasing	(12,000)
Anas poecilorhyncha haringtoni	Southeastern Asia	100,000-1,000,000		(5,000)
Anas luzonica	Philippines	2,500-10,000	Decreasing	(50)
* Anas clypeata	Eastern / Southeastern Asia (wintering)	500,000-1,000,000		(7,500)
Anas gibberifrons gibberifrons	Indonesia	10,000-25,000	Stable	(150)
Anas gibberifrons albogularis	Andaman Islands	500-1,000	Decreasing	8
* Anas acuta acuta	Eastern / Southeastern Asia (wintering)	500,000-1,000,000	Decreasing	(7,500)
* Anas querquedula	Eastern / Southeastern Asia (wintering)	100,000-1,000,000		5,000)
Anas formosa	Entire population : Eastern Asia	210,000		2,100
* Anas crecca crecca	Eastern / Southeastern Asia	600,000-1,000,000	Decreasing	(8,000)
Marmaronetta angustirostris	Southern Asia	5,000	Increasing	50
Netta rufina	Southern / Central Asia	25,000-100,000	Decreasing	(500)
* Aythya ferina	Eastern / Southeastern Asia	600,000-1,000,000		(8,000)
Aythya nyroca	Southern / Eastern / Southeastern Asia	10,000	Decreasing	100
Aythya baeri	Entire population : Eastern / Southeastern Asia	10,000-20,000	Decreasing	150
* Aythya fuligula	Eastern / Southeastern Asia	500,000-1,000,000		(7,500)
* Aythya marila mariloides	Eastern Asia	200,000-400,000		3,000)
* Somateria mollissima v-nigra	Northwestern North America / Eastern Siberia / Bering Sea	130,000-200,000	Decreasing	1,700
* Somateria spectabilis	Eastern Asia
* Somateria fischeri	Eastern Siberia / Alaska	140,000-160,000	Decreasing	1,500
* Polysticta stelleri	Eastern Asia / Alaska	180,000	Decreasing	1,800
* Histrionicus histrionicus pacificus	Western Pacific	25,000-100,000		(500)
* Clangula hyemalis	Eastern Asia	500,000-1,000,000		(7,500)
Melanitta nigra americana	Eastern Asia	100,000-1,000,000		(5,000)
Melanitta fusca stejnegeri	Central / Eastern Asia	600,000-1,000,000		(8,000)
* Bucephala clangula clangula	Eastern Asia (wintering)	50,000-100,000		(750)
Mergellus albellus	Eastern Asia (wintering)	25,000-100,000		(500)
Mergus serrator serrator	Eastern Asia (wintering)	25,000-100,000		(500)
Mergus squamatus	Entire population : Eastern Asia	2,000-4,000	Decreasing	30
* Mergus merganser merganser / orientalis	Southern Asia (wintering)	2,500-10,000	Stable	60
* Mergus merganser merganser / orientalis	Eastern Asia (wintering)	50,000-100,000		(750)

Url : https://www.aerien.ch/articles/1375/Voie_de_migration_Est_Asiatique.php

Créé : 7 mars 2006 - Modifié : 9 janv. 2018

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