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RESPONDENT
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Benoit Sittler
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SITE NAME
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Traill Island, Karupelv Valley, Greenland, Denmark
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| Contact
details (phone/fax//e-mail//address): |
| (49-761)2033629/(49-761)2033638 // sittler@ruf.uni-freiburg.de // Institut fur Landespflege Albert-Ludwigs-Universitat Freiburg D-79085 Freiburg, Germany |
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PROJECT DETAILS
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Project name:
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Karupelv Valley Project |
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Start of survey:
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End
of survey:
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Team
size:
|
|
2.06 |
18.09 |
2-7 |
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WEATHER CONDITIONS
|
| Season
phenology: |
average |
|
|
Weather conditions: |
| Given the natural variability of weather in this area, no exceptional events in 1998. No snowfalls from early June onwards. |
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|
|
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| Date of 50%
snow-cover: |
15-20 June |
|
| Date of ice-break
on rivers: |
10 June |
|
| Date of final loss
of snow: |
1 July |
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BIOTIC CONDITIONS
|
| Rodents abundance evaluation: |
high |
|
Breeding conditions:
|
| With regard to weather, no special remark (average breeding dates). Patterns of breeding success were typical of a so called "lemming year" (breeding of Snowy Owls and skuas). Breeding success "mediated" by abundance of lemmings in prey birds, but also species like King Eiders. Delay in response of Stoats. |
|
|
Rodent dynamics:
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| Peak in early summer. Pronounced decline during summer. Density of lemming winter nests was 3521 per 1000 ha.
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Rodent species recorded:
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| Latin | Abundance |
|---|
| Dicrostonyx groenlandicus | abundant |
|
|
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Summary
of fauna studies: |
| Monitoring of breeding birds and mammals. |
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