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SITE NAME
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Ulakhan-Yuryakh River, Faddeyevsky island, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (095)246-71-54(h)/(095)959-00-33(fax) // ellappo@mail.ru // Biogeography Dep., Institute of Geography, Staromonetny Per., 29, Moscow, 109017, 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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10.07
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11.07
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WEATHER
CONDITIONS
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Weather conditions: |
| The weather between 10-15 July was favourable for breeding birds.
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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: |
high
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Breeding conditions:
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| Arctic Foxes bred at high density, inhabiting dens situated 1.5-2 km from each other. Snowy Owls bred at densities up to 5 nests/km2. Territorial pairs of breeding Pomarine Skuas were recorded, and groups of Long-tailed Skuas were observed on migration. Breeding success of waders was presumably high.
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Rodent dynamics:
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| Lemming numbers were high, and no declines were recorded. The islands are inhabited by a distinct race of Siberian Lemming which occupies the habitat which elsewhere would be occupied by both Siberian and Collared Lemmings. Lemming index 28.7.
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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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