Report : setinfo

RESPONDENT
Herman Hotker

SITE NAME
Pyasina River, lower reaches, Taimyr Peninsula, Russia

Contact details (phone/fax//e-mail//address):
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PROJECT DETAILS

Project name:

Start of survey:	End of survey:	Team size:

WEATHER CONDITIONS

Season phenology:

early

Weather conditions:

Spring and summer weather was warmer than normal, with average day temperatures reaching 0шC on 8 June, and with few rainy and misty days. Snow cover disappeared between 10 and 20 June, a little earlier than usual.

Season temperature:

warm

Season humidity:

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:

Arctic Foxes were absent, but the Herring Gull and three skua species were very common. Rough-legged Buzzard and Snowy Owl were breeding locally in low numbers, perhaps due to small concentrations of lemmings. High densities of some wader species were noticed, in particular Little Stint and Curlew Sandpiper. Generally breeding success of waders was high: e.g. chicks hatched from 74% of Little Stint nests in the study area

Rodent dynamics:

Lemmings were very scarce.

Rodent species recorded:

Latin	Abundance

Summary of fauna studies:

Group of species	Presence	Abundance	Breeding	Detailed studies	Comment
arctic foxes	No
lemmings	Yes	rare
waders	Yes	common	hatching	Yes
buzzards	Yes	rare	breeding
skuas	Yes	common
pomarine skuas	Yes	common
gulls/terns	Yes	common
owls	Yes	rare	breeding		Snowy