
TOP > 生物多様性センターの国際協力 > ESABII > Database > Migrant Birds Database > Jack Snipe
Common Name | Jack SnipeBirdlife International | |||||||||||||||||||||||||||||||||||||||||||||
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Species name | Lymnocryptes minimusBirdlife International | |||||||||||||||||||||||||||||||||||||||||||||
Family | Scolopacidae | |||||||||||||||||||||||||||||||||||||||||||||
Genus | ||||||||||||||||||||||||||||||||||||||||||||||
Local Name |
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No descriptions
This species has a large global population estimated to be 1,000,000 individuals (Wetlands International 2002).
This species is fully migratory and crosses Europe on a broad front1. It breeds from May to early-September1 in well-dispersed solitary pairs3, 4, after which (between August and September) adults undergo a flightless moulting period close to the breeding grounds1. The autumn south-west migration occurs from mid-September to mid-November, with the species departing its wintering grounds again in March to mid-April1. Outside of the breeding season the species remains largely solitary, usually feeding singly or in groups of up to 5 individuals1. Most of its activities are carried out nocturnally or in the early morning and late evening1.
<Breeding> The species breeds in the northern taiga and forest tundra zones on open grassy marshes and bogs with swampy ground1, 3 on flood-plains1, in swampy coniferous forest, willow Salix spp. marshes or wet alder Alnus spp. woods3.
<Non-breeding> Outside of the breeding season it inhabits both fresh and brackish wetlands1 showing a preference for mosaics of moist and waterlogged mudflats with soft, silty mud and dense of tussocks vegetation1, 2. Suitable habitats include swamps, fens4, grassy marshes3, the margins of rivers and streams1, 4, overgrown flood-lands, sewage farms4, rice-fields3, flooded arable fields, damp pastures and water meadows4.
Its diet consists of adult and larval insects, annelid worms, small freshwater and terrestrial gastropods and the seeds and vegetative parts of aquatic and shoreline plants3.
The nest is positioned on hummocks of sphagnum moss or grass tussocks on floating bogs just above the surrounding water3, also on drier ground amongst bushes1 (e.g. dwarf birch Betula nana and heather)3.
1. del Hoyo et al. (1996). 2. Hayman et al. (1986). 3. Johnsgard (1981). 4. Snow and Perrins (1998). 5. Bregnballe et al. (2006). 6. Olivier (2006). 7. Clausager (2006).
LC
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
<Population justification> Total regarded as a minimum by Wetlands International (2006).
<Trend justification> The overall population trend is stable, although some populations have unknown trends (Wetlands International 2006).
Country | Category | Reference |
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Brunei Darussalam | ||
Cambodia | ||
China | ||
Indonesia | ||
Japan | ||
Korea | ||
Lao PDR | ||
Malaysia | ||
Mongolia | ||
Myanmar | ||
Philippines | ||
Singapore | ||
Thailand | ||
Vietnam |
The species is threatened by the loss and degradation of its wetland habitats through afforestation, peat extraction and drainage for agricultural intensification1. It also suffers from lead poisoning as a result of ingesting lead shot deposited on wetlands6. The species is hunted during the autumn migration1 (e.g. in Denmark)5.
The annual success of reproduction is estimated every year by wing surveys in Denmark since the end of the 1970s, and in France since the mid-1990s. Hunting bags are estimated every year in Denmark7.
No descriptions
No descriptions
Country | Status | Reference |
---|---|---|
Brunei Darussalam | ||
Cambodia | ||
China | ||
Indonesia | ||
Japan | ||
Korea | ||
Lao PDR | ||
Malaysia | ||
Mongolia | ||
Myanmar | ||
Philippines | ||
Singapore | ||
Thailand | ||
Vietnam |
The Asian Waterbird Census (AWC) was initiated in 1987 and runs in parallel with other waterbird censuses carried out in Africa, Europe, Central and West Asia and Latin America under the umbrella of the International Waterbird Census (IWC), which is organised by Wetlands International.
The AWC takes place annually, during the second and third weeks of January, and is carried out by volunteers interested in collecting information on waterbirds and wetlands as a basis for contributing to their conservation.
Reference: Li, Z.W.D., Bloem, A., Delany S., Martakis G. and Quintero J. O. 2009. Status of Waterbirds in Asia - Results of the Asian Waterbird Census: 1987-2007. Wetlands International, Kuala Lumpur, Malaysia
BRUNEI DARUSSALAM | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 2 | 3 | 3 | 2 | 4 | 4 | 0 | 4 | 4 | 4 | 4 | 5 | 5 | 0 | 0 | 0 | 9 | 0 | 0 | 1 | 0 | 9 |
CAMBODIA | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 11 | 0 | 0 | 12 | 12 | 11 | 5 | 1 | 6 | 9 | 6 | 6 |
CHINA | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 1 | 34 | 12 | 50 | 60 | 67 | 29 | 6 | 14 | 6 | 15 | 21 | 20 | 14 | 10 | 22 | 45 | 80 | 81 | 59 | 72 |
INDONESIA | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 1 | 19 | 8 | 17 | 17 | 15 | 19 | 16 | 0 | 0 | 47 | 12 | 10 | 40 | 34 | 14 | 16 | 15 | 23 |
JAPAN | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 53 | 39 | 52 | 47 | 20 | 50 | 40 | 47 | 37 | 41 | 37 | 107 | 112 | 103 | 109 | 97 | 159 | 142 | 137 |
LAO PDR | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 2 | 4 | 5 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 14 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
MALAYSIA | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 59 | 68 | 93 | 85 | 17 | 10 | 7 | 10 | 0 | 0 | 20 | 25 | 25 | 25 | 43 | 43 | 82 | 82 | 40 |
MYANMAR | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 5 | 3 | 12 | 17 | 15 | 21 | 20 | 13 | 12 | 2 | 4 | 2 | 0 | 7 | 32 | 47 | 73 | 24 | 31 | 32 | 19 |
PHILIPPINES | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 0 | 19 | 21 | 34 | 39 | 46 | 47 | 39 | 28 | 29 | 32 | 43 | 38 | 50 | 47 | 56 | 54 | 65 | 108 |
SINGAPORE | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 0 | 4 | 12 | 17 | 15 | 13 | 14 | 10 | 10 | 6 | 11 | 10 | 10 | 8 | 9 | 9 | 8 | 8 | 7 |
REPUBLIC OF KOREA | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 10 | 12 | 22 | 20 | 20 | 15 | 10 | 22 | 25 | 22 | 14 | 68 | 99 | 112 | 118 | 116 | 117 | 123 | 127 | 127 |
THAILAND | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | 25 | |||||||||||||||||||||
The number of observed sites(not all count sites) | 1 | |||||||||||||||||||||
The total number of count sites | 10 | 8 | 3 | 20 | 26 | 12 | 23 | 16 | 17 | 5 | 9 | 3 | 1 | 1 | 7 | 3 | 9 | 26 | 20 | 82 | 99 | 33 |
VIETNAM | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
The number of observed individual | ||||||||||||||||||||||
The number of observed sites(not all count sites) | ||||||||||||||||||||||
The total number of count sites | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 4 | 0 | 1 | 1 | 0 | 1 | 8 | 2 | 2 | 16 | 4 | 4 | 9 | 6 | 11 |