BREEDING CONDITIONS REPORT, 1993


RESPONDENT

Anatoli Gavrilov

SITE NAME

Ary-Mas, Taimyr, Russia

Contact details (phone/fax//e-mail//address):
2-10-97/2-12-39 // // Taimyr State Nature Reserve, PB 131, Khatanga, Krasnoyarski krai, 663260, Russia

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:


WEATHER CONDITIONS

Season phenology: early

Weather conditions:

Spring started earlier than usual. The mean daily temperature exceeded the 0øC level for the first time on 7 June. As a result, the snow melted on the plains on 8 June, and on 11 June ice break-up started at the Novaya river.

 

Season temperature:
Season humidity:
Date of 50% snow-cover:
Date of ice-break on rivers: 11.06
Date of final loss of snow: 8.06

BIOTIC CONDITIONS

Rodents abundance evaluation:

low

Breeding conditions:

Arctic Foxes were few during spring and summer, only two or three out of 13 dens were occupied in a 120 km2 area. Breeding of waders was successful, although it was partly influenced by a sharp drop in temperature in the last ten days of July. In the first half of June abundance of breeding and migrant wader species in the most typical habitats was 8 ind./km2 for Pacific Golden Plover, 32 for Ruff, 20 for Temminck's Stint, 9 for Pectoral Sandpiper and 13 for Bar-tailed Godwit. On the whole good weather conditions, a lack of Arctic Foxes, and low numbers of skuas and gulls in the second half of the summer favoured successful breeding of waders.
 

Rodent dynamics:

Lemming numbers were extremely low in May and June, later they were recorded occasionally.

Rodent species recorded:

LatinAbundance

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYesrarebreeding  
lemmingsYesrare   
wadersYescommonhatching  

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment

 


Source(s):

Tomkovich, P.S. 1998. Breeding conditions for waders in Russian tundras in 1993. International Wader Studies 10:124-131.

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 Last updated: 11 Dec. 2008  

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