BREEDING CONDITIONS REPORT, 1996


RESPONDENT

Mikhail Soloviev

SITE NAME

Bludnaya River mouth, 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:

Wader monitoring project at Taimyr

Start of survey:

End of survey: Team size:

11.06

13.08

5


WEATHER CONDITIONS

Season phenology: late

Weather conditions:

Spring was the latest in a period 1994-1999, with a snowstorm on 18-19 June resulting in a complete snowcover. Summer was relatively warm and dry, without snowfalls.

 

Season temperature: warm
Season humidity: dry
Date of 50% snow-cover: 26-27.06
Date of ice-break on rivers:
Date of final loss of snow:

BIOTIC CONDITIONS

Rodents abundance evaluation:

high

Breeding conditions:

Arctic Foxes were not recorded during bird breeding season. Solitary pairs of Pomorine and Arctic Skuas, and Rough-legged Buzzards nested within the study area of 100 sq.km; Long-tailed Skuas had same relatively low density as in other years. Rare wandering Snowy Owls appeared only in August.
Wader nesting was substantially delayed: Dunlin, normally one of the earliest breeders, initiated clutches in late June only, while other species did it in early July. Nomadic wader species (Pectoral Sandpiper, Ruff and phalaropes) had lower density than in early season of 1995. Nest success was high and fell in the range of 66 to 89% for common wader species, due to low nest depredation by Arctic Foxes. A unique for the season reason of clutch loss was trampling by reindeers that delayed migration at one month and remained in the study area till late July.
 

Rodent dynamics:

Siberian and Collared Lemmings were met at a ratio of 9:1, and had the highest numbers for the period 1994-99. They were the most common during snowmelt in late June - early July, but continued to be met few times during a day by each observer till the end of July.

Rodent species recorded:

LatinAbundance

Summary of fauna studies:

 

FAUNA IN STUDY AREA

Group of speciesPresenceAbundanceBreedingDetailed studiesComment
arctic foxesNo    
lemmingsYesabundant   
volesNo    
wadersYescommonfledgingYes 
geeseYes no  
ducksYescommonbreeding  
buzzardsYesrarebreeding  
ptarmigansYescommonbreeding  
cranesNo    
skuasYesrarebreeding  
pomarine skuasYesrarebreeding  
gulls/ternsYescommonbreeding  
owlsYesrareno  
passerinesYesabundanthatching  

 

SEABIRD COLONIES

speciesComment

 

WATERBIRD NON-BREEDING AGGREGATIONS

speciesAggregation typeNumberComment

 

HUMAN ACTIVITY IN THE STUDY AREA

Human activityComment
reindeer herding 
seasonal fishing/hunting 
summer field camp 
vicinities of a permanent human settlement 

 


Recommended citation

Soloviev, M.Y., Dementiev, M.N., Golovnyuk, V.V., Pronin, T., Sviridova, T.V. (1996). Breeding conditions report for Bludnaya River mouth, Taimyr, Russia, 1996. ARCTIC BIRDS: an international breeding conditions survey. (Online database). Eds. M.Soloviev, P.Tomkovich. . Updated 11 Dec. 2008. Accessed .

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