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SITE NAME
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Khanovey field station, middle Yamal, Russia
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| Contact details
(phone/fax//e-mail//address): |
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PROJECT DETAILS |
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Start of survey:
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End
of survey: |
Team
size: |
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WEATHER
CONDITIONS
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Weather conditions: |
| Spring was very late. Heavy snowfalls occurred in the first ten days of June and until mid-June air temperature only rarely exceeded 2øC. At the Nurma river ice broke up by 17 June.
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| Date of ice-break on
rivers: |
17.06
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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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Rough-legged Buzzards and Snowy Owls (which were abundant in spring) did not breed, owing to the mass mortality of lemmings. During the whole summer the number of Arctic Foxes and skuas was large. Thus, high predation rate together with severe weather negatively influenced the breeding of all birds including waders. Chicks hatched only in three out of 32 wader nests located.
The earliest wader nests (Temminck's Stint, Wood Sandpiper Tringa glareola and Ruff) with incomplete clutches were found in the last ten days of June, and in the majority of nests, clutches were completed only in early July. Probably only a small proportion of waders started to breed. High breeding densities were recorded in Common Snipe Gallinago gallinago (seven nests found on 4.5 km2), and in Jack Snipe Lymnocryptes minimus (five to seven pairs on 4.5 km2; two nests found); breeding was recorded for Pectoral Sandpiper Calidris melanotos. No nests were found for Little Stint.
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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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