BREEDING CONDITIONS REPORT, 1992


RESPONDENT

Stanislav Mochalov

SITE NAME

Kolyma River Delta, Russia

Contact details (phone/fax//e-mail//address):
238-64 // // Molodezhnaya 11-7, pos.Cherski-1, Nizhnekolymski ulus, Sakha-Yakutia, 678830, Russia

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:


WEATHER CONDITIONS

Season phenology:

Weather conditions:

In montane and coastal tundras the weather during the breeding season was cold. Between 10-30 July, midday air temperatures ranged between 0øC and 12øC.

 

Season temperature: cold
Season humidity:
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:

Snowy Owls bred only occasionally. The number of many avian predators was low: that of Pomarine Skua being extremely low. Abundance of Arctic Foxes was average. Numbers of Temminck's Stint and Grey Phalarope Phalaropus fulicarius were large, although predation of their nests by Herring Gulls, Long-tailed and Parasitic Skuas was recorded. Although conditions were generally unfavourable, at least partially successful breeding was observed in Great Knot Calidris tenuirostris, Dotterel Charadrius morinellus, Wood Sandpiper, Little Curlew Numenius minutus, Spotted Redshank, Little Stint, Sharp-tailed Sandpiper Calidris acuminata, Pectoral Sandpiper, Temminck's Stint, Dunlin and Grey Phalarope.
 

Rodent dynamics:

Numbers of lemmings were low.

Rodent species recorded:

LatinAbundance

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYescommon   
lemmingsYesrare   
wadersYesabundanthatching  
skuasYes    
pomarine skuasYesrare   
gulls/ternsYes    
owlsYes breeding  

 

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 1992. International Wader Studies 10:117-123.

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 Last updated: 11 Dec. 2008  

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