Research and monitoring for and with raptors in Europe
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Submission #119

Thu, 2015-12-31
Sweden
Projekt osprey in western part of the lake Mälaren
1971
2012
Regional
Western part of the lake Mälaren (the third biggest lake i Sweden)
A website is under producing
Myself (Håkan Gilledal)
Civil (NGO)
Supported of the regional country administration and the regional natureconservation organisation
2
No
Osprey (Pandion haliaetus)
Regular breeder
Yes
<20%
<20%
Yes
No
No
Yes
  • Special Protection Areas (SPAs)
  • Ramsar sites
  • Areas protected by national law (national parks, protected landscape areas etc.)
No
No
No
Yes
1975
2012
Yes
1971
2012
Yes
1971
2012
Yes
1975
2012
Yes
1971
1986
No
Yes
1971
1986
No
No
No
No
Yes
Disturbance
Forest and tree loss and degradation
Pesticides & pollution (direct or indirect effects)
1975
2012
No
Yes
1975
2012
Yes
1971
2012
No
Yes
Total count
Not annually but regularly
Yes
Sampling units
Not annually but regularly
Yes
Yes
Sampling units
Not annually but regularly
Yes
No
No
Yes
No
No
No
No
No
Yes
1971
1986
Yes
1971
1996
No
No
No
No
No
No
No
Yes
1971
1986
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Not annually but regularly
Yes
Reports with reproduction and spreadingmaps to the federal country administrations in actual regions.
Yes
Annually
Yes
Annually
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
0
2
>80%
400
Fiskgjusen - Inventeringar i västra Mälaren 1971-2009. Rapport 2011:4 från Länsstyrelsen i Södermanlands län.
It means: Osbrey - Inventory in the western part of the lake Mälaren. Publ. 2011:4 from the regional country administration (In Södermanland). (53 pages)
It will probably very soon get published on its computorinformation.
During 1977-1986 and 2001-2005 were every (known) nest and every pull registrated.
Between the years 1977-1986 existed ordinary about 36 nests, During 2001-2005 had
it been reduced to 29 nests. During these years were all the pulls counted.
The other years we have had different anbitions. Total about 1000 breedings have been noticed which probably means that about 70 % of all breedings since 1971 have been registrated. For 97 % we have the knowledge if the breedings have been sucessful or not. (At least one pull in the nest means that the breeding was sucessful)