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RESPONDENT
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Yuri Shchadilov
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SITE NAME
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Khabuika Lake, Russky Zavorot Peninsula, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (095)457-77-49(h.)/423-03-22(off.)/423-23-22(fax) // anbelous@online.ru //
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PROJECT DETAILS |
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Project name:
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Reproductive success of Bewick's Swan
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Start of survey:
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End
of survey: |
Team
size: |
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21.06
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10.07
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3
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WEATHER
CONDITIONS
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Weather conditions: |
| Small amount of snow was accumulated during very cold winter (up to -47øC), with nearly all the winter precipitation occurring during April and May. June temperatures were below the average. It was the worst breeding year of our study in terms of lateness (the ice on the Pechora River did not break until 15 June; normally it happens in late May).
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| Date of ice-break on
rivers: |
15.06.99
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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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Abundance of Arctic Foxes and birds of prey was noticeably lower than in 1998, while Snowy Owl and Rough-legged Buzzard were entirely absent. Only White-tailed Eagle was regularly seen among birds of prey. Two of four known Arctic Fox dens were uninhabited, while one of inhabited dens contained 4 young which is a half the number of young in the same den in 1998.
Numbers of skuas and gulls were lower than in 1998. Breeding numbers of ducks were the lowest for the 10-year series, likewise was the breeding density of Bewick's Swan (15 nests in the core study area, where normally 20+ pairs bred). Also clutch size in most species of wildfowl was lower than average, not exceeding 3 eggs in geese and swans (mean for Bewick's Swan was 2.6 eggs). A pronounced reduction in numbers was recorded in nesting Dunlins, Temminck's and Little stints, and Ruffs, while Red-necked Phalaropes became a somewhat more common than in 1998. Incomplete clutches were not infrequent in nests of Dunlin and Temminck's Stint. Despite of low numbers of predators breeding conditions were unfavourable for many wildfowl, waders and birds of prey, mostly because of the cold spring.
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Rodent dynamics:
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| No rodents were observed during the whole period of observations (21 June - 1- July).
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Rodent species recorded:
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Summary
of fauna studies: |
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