BREEDING CONDITIONS REPORT, 1993


RESPONDENT

Vladimir Morozov

SITE NAME

Bolshezemelskaya Tundra, eastern part, southern tundra subzone, Russia

Contact details (phone/fax//e-mail//address):
(495)1553044 // piskulka@mtu-net.ru // Shebashevski Proezd, 7-16, Moscow, 125315, Russia

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:


WEATHER CONDITIONS

Season phenology:

Weather conditions:

Spring passed very quickly: semi-winter conditions remained up to 29 May, then altered abruptly to give warm and sunny weather; which remained, without even light frosts, for about a month. During that time there was no precipitation, temperatures reached 17-23øC at mid-day and fell to 4-10øC at night. The whole summer was dry and warm almost without precipitation, and cold wet weather with prolonged rains only came after 10 August.

 

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

BIOTIC CONDITIONS

Rodents abundance evaluation:

low

Breeding conditions:

Numbers of Arctic Foxes remained very low and breeding was not recorded. The number of birds feeding on small mammals, (Hen Harrier Circus cyaneus, Rough-legged Buzzard and skuas), was also low. Snowy and Short-eared Owls were not recorded at all. Single pairs of Rough-legged Buzzard bred mainly at the northern edge of forest-tundra and in the mountains of the Polar Urals; nesting was mostly unsuccessful. Successful breeding was observed only in some pairs of Hen Harriers, which nested along the river valleys. Long-tailed Skuas in most cases did not breed, they moved in groups around the tundra concentrating near the rubbish dumps in the vicinity of human settlements. Favourable weather conditions and the ecological situation resulted in successful breeding in the majority of waders of this area. Large numbers of Ruff, Common Snipe Gallinago gallinago and Pintail Snipe G. stenura were recorded.
 

Rodent dynamics:

In spring and summer, numbers of lemmings and other small mammals (Narrow-skulled Microtus gregalis and Northern Redbacked Voles Clethrionomys glareolus and Arctic Shrew (Sorex arcticus) were very low, but an increase was observed in autumn indicating a probable peak of lemming numbers in 1994.

Rodent species recorded:

LatinAbundance
Microtus gregalisrare
Clethrionomys glareolusrare
Sorex arcticusrare

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYesrareno  
lemmingsYesrare   
volesYesrare   
wadersYes hatching  
birds of preyYesrarehatching  
buzzardsYesrarebreeding  
skuasYes    
owlsNo    
shrewsYesrare   

 

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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