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RESPONDENT
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Pavel Tomkovich
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SITE NAME
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Balaganchik River mouth, tributary of the Anadyr River in its upper reaches, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (495)6294474/(495)629-48-25(fax, for P. Tomkovich) // pst@zmmu.msu.ru // Zoological Museum, Bolshaya Nikitskaya St., 6, Moscow, 125009, Russia
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PROJECT DETAILS |
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Project name:
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Great Knot Breeding biology study
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Start of survey:
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End
of survey: |
Team
size: |
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16.05
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31.07
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2
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WEATHER
CONDITIONS
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| Season phenology: |
average
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Weather conditions: |
| Very late and high flood in the Anadyr valley on 21-23 June after heavy rains on 20-21 June resulted in clutch loss by Xenus cinereus, Charadrius hiaticula, Calidris temminckii. Late flood did not permit renesting, and this resulted in low density of broods in these species.
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| Date of 50%
snow-cover: |
1 June
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| Date of ice-break on
rivers: |
25 May
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| Date of final loss of
snow: |
8 July
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
high
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Breeding conditions:
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| Number of voles - maximum, picas (Ochotona) - decreasing, Mustella erminea - high (main predator on waders in mountain tundra). Great Knots lost more clutches than usial from predators. Favourable weather benefited quick development of chicks and their good survival. Great Knots started breeding with previous density, Pacific Golden Plovers and Solitary Snipe decreased their numbers, but Pintail Snipe was found breeding. Reproductive success of waders was low in floodplain and average - in mountain tundra.
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Rodent dynamics:
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Rodent species recorded:
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Summary
of fauna studies: |
| Breeding success of waders in the Anadyr valley - low, in mountain tundra - average.
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