BREEDING CONDITIONS REPORT, 1989


RESPONDENT

V. Zhukov

SITE NAME

Yuribey village, Gydan Peninsula, Russia

Contact details (phone/fax//e-mail//address):
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PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:


WEATHER CONDITIONS

Season phenology:

Weather conditions:

In the subarctic tundra habitats, snow cover disappeared in mid-June and the ice on the frozen river Yuribey broke up at the end of June.

 

Season temperature:
Season humidity:
Date of 50% snow-cover:
Date of ice-break on rivers: late June
Date of final loss of snow: mid June

BIOTIC CONDITIONS

Rodents abundance evaluation:

low

Breeding conditions:

Arctic Foxes were abundant, and Snowy Owls were numerous in the first half of the summer although they did not breed. Skuas also did not breed, and their numbers decreased during the summer. Breeding efforts of Rough-legged Buzzard were unfavourable - c. 70% of nests disappeared. Breeding success of waders (Dunlin, Pacific Golden Plover Pluvialisfulva, Ringed Plover Charadrius hiaticula, Red-necked Phalarope Phalarapus lobatus) was probably also low.
Little Stint, Temminck's Stint C. temminckii and Ruff finished breeding with better results than other species. Grey Plover Pluvialis squatarola, Curlew Sandpiper, Jack Snipe Lymnocryptes minimus, Common Snipe Gallinago gallinago, Pin-tailed Snipe Gallinago stenura, and probably Wood Sandpiper Tringa glareola and Pectoral Sandpiper Calidris melanotos were breeding in low numbers. Generally the breeding season for waders was not successful.
 

Rodent dynamics:

After the peak in the numbers of Siberian Lemming in 1988, a rapid population decline was noticed, and numbers of both species of lemmings decreased during the summer to very low levels of abundance.

Rodent species recorded:

LatinAbundance
Lemmus sibiricusrare
Dicrostonyx torquatusrare

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYesabundant   
lemmingsYesrare   
wadersYes hatching  
buzzardsYes breeding  
skuasYes no  
owlsYesabundantno  

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment

 


Source(s):

Kondratyev, A.Y. 1998. Breeding conditions for waders in the tundras of the USSR in 1989. International Wader Studies 10:101-104.

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 Last updated: 11 Dec. 2008  

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