BREEDING CONDITIONS REPORT, 1991

RESPONDENT

Eugeny Syroechkovski, Jr.

SITE NAME

Pronchischeva Lake, north-eastern 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:

WEATHER CONDITIONS
Season phenology: late

Weather conditions:
Snow melted late, at the beginning of July. Weather in the first twenty days of July was mild and relatively warm, whilst from 21 July to mid-August it was rainy, misty and cold. On 22-23 July the tundra was covered with snow.

 
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:
The density of lemmings was high, and of Arctic Foxes, moderate. The influence of foxes on bird clutches was not noted. Snowy Owl, Pomarine Skua, Long-tailed Skua, Herring Gull and Glaucous Gull all bred successfully. Owls occurred densely and had large clutches (8.5 eggs/pair). Breeding was successful for the Curlew Sandpiper, Turnstone, Little Stint, Grey Plover, Pacific Golden Plover, Sanderling and Ringed Plover. Single nests of Knot and Dunlin were found. Total density of breeding waders on a 12 km2 plot was 67 nests and families.
 

Rodent dynamics:

Rodent species recorded:
LatinAbundance

Summary of fauna studies:

 

FAUNA IN THE STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYescommon   
lemmingsYesabundant   
wadersYes hatching  
skuasYes hatching  
pomarine skuasYes hatching  
gulls/ternsYes hatching  
owlsYes hatching  

 

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.
Summers, R.W., Underhill, L.G. 1996. The dispersion of Arctic breeding birds according to snow-free patche dimensions during the spring thaw in the north-eastern Taimyr Peninsula, Russia Polar Biology 16: 331-333.
Underhill, L.G., Prys-Jones, R.P., Syroechkovski, E.E., Groen, N.M., Karpov, V., Lappo, H.G., Van Roomen, M.W.J., Rybkin, A., Schekkerman, H., Spiekman, H., Summers, R.W. 1993. Breeding of Waders (Charadrii) and Brent Geese Branta-Bernicla-Bernicla at Pro

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 Last updated: 11 Dec. 2008  

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