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RESPONDENT
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Sergei Sleptsov
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SITE NAME
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Djukagirskoe Lake, "Kytalyk" reserve, Indigirka River basin, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (4112)33-56-90/(4112)33-58-12/33-33-94(h) // sleptsov@mail.ru // Russia, 677891, Yakutsk, Pr. Lenina 41, Institute of biological problems of cryolitozona, office 423
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PROJECT DETAILS |
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Project name:
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Monitoring of Siberian White Crane and Sandhill Crane
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Start of survey:
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End
of survey: |
Team
size: |
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29.05
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21.06
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1
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WEATHER
CONDITIONS
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Weather conditions: |
| Spring was unusually early, and mean daily air temperatures rose above freezing already on 12 May. Mosquitoes appeared in late May, while normally they appear after 20 June. The weather turned cold on 2 June, when rain gradually changed to snow, westerly wind reached 6-7 m/s, with gusts up to 11-12 m/s, and air temperature dropped to -3.3?Ñ. There was warm weather from 6 June until the end of the period of studies on 21 June. We did not record the death of small birds during the period of adverse weather in early June.
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| Date of 50%
snow-cover: |
15-20.05
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| Date of ice-break on
rivers: |
27-29.05
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| Date of final loss of
snow: |
20-25.05
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
average
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Breeding conditions:
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Arctic Foxes were common, but their reproduction was not confirmed.
Breeding Rough-legged Buzzards and Peregrine Falcons occurred in average numbers. Skuas and Glaucous Gulls were common, and Herring Gulls and Ross's Gulls were numerous. A few records of single non-breeding Short-eared Owls were made.
Among 7 nests of Siberian Cranes and 1 nest of Sandhill Cranes found, 5 clutches of Siberian Cranes were laid in nests used in previous years. The first nest of Grey Phalaropes with 4 eggs was found on 12 June, and the following wader nests (all with 4 eggs) were found on 18 June on a 12-km long excursion: 2 of Red-necked Phalaropes, 4 of Grey Phalaropes, 1 of Ruff and 1 of Pectoral Sandpiper. Numbers of waders, in particular phalaropes, were apparently higher than in 2006. Willow Grouse nested in average numbers.
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Rodent dynamics:
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| Northern Red-backed Voles were common near and inside fishermen's cabins, but lemmings were not recorded, although signs of their winter activities (tracks and latrines) were encountered everywhere.
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Rodent species recorded:
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| Latin | Abundance |
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| Clethrionomys rutilus | common |
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Summary
of fauna studies: |
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