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SITE NAME
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Meynypilgynskaya lake-river system, Chukotski Peninsula, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (42722)26647(o), 28806(h)/(42722)26761(fax) // goland87@yandex.ru; elena_golub@mail.ru // Otke 40-15, Anadyr, Chuckotski okrug, 689000, 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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2.07
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20.09
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2
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WEATHER
CONDITIONS
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Weather conditions: |
| Weather was usual in July. Precipitation in June and July was in the normal range for the area. The first intensive rains resulting in flooding of rivers occurred from 8 to 14 August. Autumn was warm and prolonged.
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| Season temperature: |
average
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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 and Ermines were not recorded, but observations of adult and juvenile Red Foxes were more common than usual. Numbers of Brown Bears was high as previously, and they regularly destroyed nests in all known colonies of gulls and Common Eiders. Two records of Short-eared Owls were made, while generally rare Snowy Owls were not seen.
Spawning of Far-eastern Capelin overlaps in time with nesting in many birds. We assume that Herring Gulls and Slaty-backed Gulls prefer to feed on Capelin in years of its high abundance, which results in reduced predation pressure on nesting birds and higher nesting success in the latter. Abundance of spawning Capelin was not high in 2005, which predation by large gulls was high than normally. Wihte-fronted Geese were unusually rare, including unmated birds, moulting birds with broods and broods already able to fly. Nesting success was very low in this species, and their departure from the area of Pekulneiskoe Lake was 5 days delayed compared to normal time. Sandhill Cranes have started migration at a delay of 2-3 days, and departure took more time than usual.
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Rodent dynamics:
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| Abundance of microtine rodents was above average, while numbers of juvenile Arctic Ground Squirrels was the highest on record since the start of observations in 1997.
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Rodent species recorded:
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| Latin | Abundance |
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| Citellus parryi | abundant |
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Summary
of fauna studies: |
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