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RESPONDENT
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Vadim Ryabitsev
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SITE NAME
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Yaibari River, Yamal, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (343)-2-605-605/(343)-2-608-256 // riabits@etel.ru // Schorsa St., 30-32, Ekaterinburg, 620142, Russia
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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 early. The ice broke-up on 5-8 June. Snow cover melted almost completely within the first ten days of June. Summer was moderately warm, without long cool periods.
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| Date of ice-break on
rivers: |
5-8.06
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| Date of final loss of
snow: |
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
high
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Breeding conditions:
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| Amongst predators, only Pomarine Skuas bred at high density (2.4 pairs/km2) but their pressure on waders was not marked because of the fair density of rodents. Arctic Foxes bred successfully, but they were not numerous. Of 17 nests of Grey Plover, 16 hatched chicks (the female from 17th nest was caught by a Peregrine). Nesting success of Dunlin was 89% (of 18 nests) and of Little Stint was 83% (of 24 nests). General wader incubation success was estimated as 82%. During the time of tending chicks, conditions appeared favourable and most chicks fledged.
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Rodent dynamics:
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| Siberian Lemmings reproduced very numerously and successfully during summer.
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Rodent species recorded:
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| Latin | Abundance |
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| Lemmus sibiricus | abundant |
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Summary
of fauna studies: |
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