BREEDING CONDITIONS REPORT, 1991


RESPONDENT

Svetlana Mechnikova

SITE NAME

Schuchya River, middle reaches, Yamal Peninsula, Russia

Contact details (phone/fax//e-mail//address):
(495) 367-60-56 // mechnikova@rambler.ru // Russia, 105043 Moscow, 3-ya Parkovaya, 8/19, apartm. 50

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:


WEATHER CONDITIONS

Season phenology: early

Weather conditions:

Spring was the earliest of the last 18 years: ice on rivers disappeared in mid-May, and snow in the tundra melted completely by mid-June. Summer was prolonged and rainy.

 

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

BIOTIC CONDITIONS

Rodents abundance evaluation:

high

Breeding conditions:

Long-tailed Skua, Snowy Owl and Rough-legged Buzzard bred numerously. The proportion of birds in the diet of Rough-legged Buzzard (according to pellet analysis) was considerable. Along the river, Common Sandpiperwas more numerous than normal and Terek Sandpiper was quite abundant. Amongst waders breeding in the tundra, Ruffs were absent and the abundance of other waders was lower than usual. They occurred patchily (particularly Whimbrel and Bar-tailed Godwit).
 

Rodent dynamics:

The density of Narrow-skulled Vole was very high, and of Ruddy Vole and lemmings it was fairly high.

Rodent species recorded:

LatinAbundance
Clethrionomys rutiluscommon
Microtus gregalisabundant

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
lemmingsYesabundant   
volesYesabundant   
wadersYes hatching  
buzzardsYesabundantbreeding  
skuasYesabundantbreeding  
owlsYesabundantbreeding snowy

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment

 


Source(s):

Ryabitsev, V.K. 1998. Breeding conditions for waders Russian tundras in 1991. International Wader Studies 10:111-116.

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 Last updated: 11 Dec. 2008  

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