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SITE NAME
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Naltijarvi, Finnish Lapland, Finland
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| Contact details
(phone/fax//e-mail//address): |
| 1-907-474-9113 // dmtracy@hotmail.com // PO Box 8222, Fairbanks, AK 99708, USA
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PROJECT DETAILS |
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Project name:
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Temminck's Stint Social System
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Start of survey:
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End
of survey: |
Team
size: |
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6.06
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18.07
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2
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WEATHER
CONDITIONS
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Weather conditions: |
| Temperatures were colder than normal in May through the first week of June. Melting of ground snow cover and ice cover on lakes was at least two weeks later than normal. Snow cover reduced to 50% on 6 June and completely melted on 13 June. Deeper lakes were not ice-free until mid-June. Egg laying for Temminck's Stints began 7-9 days later than in 2003 and 2004. Most days mid-June through July were much warmer than in 2004. There was a cold spell of several days in late June in both 2004 and 2005. Water levels were higher in June in 2005 than in 2004 or 2003, flooding some Temminck's Stint nest sites and feeding areas. The late season resulted in about a 25% decline in nesting density for Temminck's Stint, primarily due to decline in female-incubated nests.
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| Date of 50%
snow-cover: |
6.06
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| Date of ice-break on
rivers: |
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| Date of final loss of
snow: |
13.06
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
low
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Breeding conditions:
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| As in past years, predator activity was very low, but a few nests failed completely because of poor viability of the eggs. Hatching success was very high again (as last year). General observations suggest a decrease in breeding densities for waterfowl and shorebirds, most likely due to the late spring. Passerines nested later, but densities seemed similar to past years.
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Rodent dynamics:
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| There were no signs of rodents.
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Rodent species recorded:
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Summary
of fauna studies: |
| This study focused on the breeding biology and social system of Temminck's Stints. As in 2003 and 2004, this species had a problem with egg hatching viability. We are investigating the causes of embryonic death, including possible toxins.
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