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SITE NAME
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Lena-Nordenskjold station, Lena River Delta, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (0)4421-96890/4421-968955 // michael.exo@ifv.terramare.de // Institut fuer Vogelforschung, An der Vogelwarte 21, 26386 Wilhelmshaven, Germany
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PROJECT DETAILS |
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Project name:
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Grey Plover studies
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Start of survey:
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End
of survey: |
Team
size: |
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17.06
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25.06
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3
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WEATHER
CONDITIONS
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Weather conditions: |
| On 17 June to 25 July conditions were favourable for birds; average daily temperatures were above zero. The cooling in mid-July brought lows of down to -1.3øC. On 17 June less than 10% of tundra was snow-covered. Heavy rains fell on 22 June (19 mm) and 17-22 July (15 mm).
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| Date of ice-break on
rivers: |
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| Date of final loss of
snow: |
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
low
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Breeding conditions:
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Lemming numbers were low, while Arctic Foxes, on the contrary, were rather common (regular sightings). Only one observation of Snowy Owl and Peregrine Falcon was made. No Rough-legged Buzzards nested. The common predators foraging in the area were all three skua species, Herring Gulls, Glaucous Gulls, and Ravens.
Research was focused on the Grey Plover, breeding density of which was ca. 1 pair/km2 (0.8 - 1.7 pair/km2). Density of Pacific Golden-Plovers was 2-3 times higher. Hatching success in 13 Grey Plover nests was 38.5% (predation rates - 46%). Fledging success was below 20%. Therefore despite the fair weather conditions the season turned out to be poor for waders.
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Rodent dynamics:
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Rodent species recorded:
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Summary
of fauna studies: |
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