BREEDING CONDITIONS REPORT, 1991


RESPONDENT

Mikhail Soloviev

SITE NAME

Knipovich Bay, northern Taimyr, Russia

Contact details (phone/fax//e-mail//address):
(495)9394424 // mikhail-soloviev@yandex.ru // Dept. of Vertebrate Zoology, Biological Faculty, Moscow State University, 119992 Moscow, Russia

PROJECT DETAILS

Project name:

Start of survey:

End of survey: Team size:


WEATHER CONDITIONS

Season phenology: early

Weather conditions:

In this area of arctic tundra the spring started one week earlier than in 1990, as a result of thinner snow-cover. Snow melted rapidly and ice broke-up on small rivers on 22 June. Mild weather in the first half of July was favourable for birds. However, a cyclone with snow storms between 19 and 23 July resulted in deep snow-cover that caused the death of many wader broods and some late clutches.

 

Season temperature:
Season humidity:
Date of 50% snow-cover:
Date of ice-break on rivers: 22.06
Date of final loss of snow:

BIOTIC CONDITIONS

Rodents abundance evaluation:

average

Breeding conditions:

Arctic Foxes and Snowy Owls did not reproduce and they almost did not occur. The number of breeding skuas increased a little in the season, but only a few Pomarine Skua bred. Egg-hatching success in waders was high for Grey Plover (94%), Knot Calidris canutus (84%), and Turnstone; it was moderate for Sanderling Calidris alba (61%), Little Stint (47%) and Curlew Sandpiper (40%). Taking into consideration the influence of weather on wader broods, it was estimated that the success of their breeding was moderate or a little lower than average.
 

Rodent dynamics:

The abundance of the Siberian and Collared Lemmings was moderate and their summer reproduction was good.

Rodent species recorded:

LatinAbundance

Summary of fauna studies:

 

FAUNA IN STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesYesrareno  
wadersYescommonhatchingYes 
skuasYes breeding  
pomarine skuasYesrarebreeding  
owlsYesrareno  

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment

 


Recommended citation

Soloviev, M.Y., Hilden, O., Tomkovich, P.S., Yakovlev, V.O. (1991). Breeding conditions report for Knipovich Bay, northern Taimyr, Russia, 1991. ARCTIC BIRDS: an international breeding conditions survey. (Online database). Eds. M.Soloviev, P.Tomkovich. . Updated 11 Dec. 2008. Accessed .

 See also

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

 more on citation guidelines

 

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