BREEDING CONDITIONS REPORT, 2000


RESPONDENT

Yakov Kokorev

SITE NAME

Agapa River basin, Taimyr, Russia

Contact details (phone/fax//e-mail//address):
(3919)468504(h)/(3919)468693(o) // ya.kokorev@norcom.ru // Naberezhnaya Urvantseva 23-271, Norilsk, 663300, Russia

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:

29.07

12.08

1


WEATHER CONDITIONS

Season phenology: early

Weather conditions:

Snow started melting early and some birds arrived as early as in May, but then prolonged cooling in June followed. July and August were very warm and dry, no rains for more than 50 days. As a result there was very low water level in rivers and many small marshes dried out.

 

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:

Lemmings were not recorded, likewise breeding rodent-specialized predators: Arctic Foxes, owls, Rough-legged Buzzards, skuas, Herring Gulls. Drying out of waterbodies and marshes resulted in low numbers and low reproductive success of waterfowl and most waders. Low abundance of waders caused decrease of density and brood size in Peregrine Falcons. Generally, breeding success can be evaluated as being under average because of reduced breeding densities and productivity.
 

Rodent dynamics:

Rodent species recorded:

LatinAbundance

Summary of fauna studies:

Counts of waterfowl and other bird, and their broods were carried out on the Agapa River. Peregrine Falcons were counted and ringed, along with studies of their reproductive success, and descriptions of nest territories.

 

FAUNA IN STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYesrareno  
lemmingsNo    
volesNo    
wadersYescommon   
swansYescommonhatchingYes 
geeseYesrarehatchingYespoor breeding
ducksYesrarehatchingYespoor breeding
birds of preyYesrarefledgingYespoor breeding
buzzardsYesrare Yes 
ptarmigansYesrare   
gulls/ternsYescommon Yes 
owlsYesrare   
passerinesYescommon   
diversYescommon   

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment
seasonal fishing/hunting 

 


Recommended citation

Kokorev, Y.I. (2000). Breeding conditions report for Agapa River basin, Taimyr, Russia, 2000. ARCTIC BIRDS: an international breeding conditions survey. (Online database). Eds. M.Soloviev, P.Tomkovich. . Updated 11 Dec. 2008. Accessed .

 more on citation guidelines

 

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