BREEDING CONDITIONS REPORT, 1994


RESPONDENT

Eugeny Syroechkovski, Jr.

SITE NAME

Tessema River upper reaches, northern Taimyr, Russia

Contact details (phone/fax//e-mail//address):
(095)246-71-54/(095)124-79-32 // ees@gcnet.ru // Institute of Ecology and Evolution, Leninski prospekt, 33, Moscow, 117071, Russia

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:

27.06

28.06


WEATHER CONDITIONS

Season phenology:

Weather conditions:

Weather conditions in the breeding season were considered severe, as usual, although the weather in late June was sunny and warm.

 

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

BIOTIC CONDITIONS

Rodents abundance evaluation:

high

Breeding conditions:

Rodent-feeding birds almost did not breed. In August a young Snowy Owl was found dead at the Cheluskin Point. Herring Gulls and Glaucous Gulls bred in some canyons and all three species of skuas were observed on migration. In the southern part of the survey area (30 km2) the only inhabited den of Arctic Fox was found; single nomadic animals were also recorded. During June, clutches of Grey Plover, Dotterel, Turnstone and Little Stint were incubated. Wader breeding success was probably better than average: broods of Purple Sandpipers were quite common in August at Cheluskin Point.
 

Rodent dynamics:

Collared Lemmings were recorded in low numbers in the Tessema river basin. Catching returned lemming index of 13.7 which corresponds to high numbers.

Rodent species recorded:

LatinAbundance
Dicrostonyx torquatusabundant

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYesrarebreeding  
lemmingsYesrare   
wadersYes hatching  
skuasYes no  
pomarine skuasYes no  
gulls/ternsYes breeding  

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment

 


Source(s):

Kjellen, N. 1997. Skuas on the Eurasian tundra; relative occurence of species, ages and colour phases. Ibis 139: 282-288.
Tomkovich, P.S. 1998. Breeding conditions for waders in Russian tundras in 1994. International Wader Studies 10:132-144.

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 Last updated: 11 Dec. 2008  

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