Vorsø

Populatie
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Map of Vorsø, Denmark
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Details

Country
Denmark
Species
Continental great cormorant
Pipeline
No
Running period
1981–2004
ID data
Colour rings
Individual data
Morphological measures
Habitat
Deciduous
Basic breeding
Yes
Feeding at nest data
No
Download metadata
No data available
General Information 
Responsible partyDepartment of Ecoscience, Aarhus University
ContactThomas Bregnballe (tb@ecos.au.dk, ORCID: 0000-0003-2867-478X)
OrganisationDepartment of Ecoscience, Aarhus University
Other team membersJacob Sterup (jst@ecos.au.dk)
Data availabilityno data available through SPI-Birds
Data license 
FundingMost of the field work and handling of data was funded by the Danish Ministry of Environment.
Study site 
NameVorsø
IDVOR
CountryDenmark
Size (ha)62
Major site changesNesting trees have been falling. A pair of White-tailed Sea Eagle settled to breed on the island right next to the cormorant colony. Availability of fish in the hinterland of the colony declined.
Latitude (decimal degrees N)55.8677
Longitude (decimal degrees E)-72.6926
Minimum elevation (m) 
Maximum elevation (m) 
Number of nests (min) 
Number of nests (max) 
EUNIS habitat codeG: Woodland, forest and other wooded land | G1: Broadleaved deciduous woodland | G1.1: Riparian and gallery woodland, with dominant alder, birch, poplar or willow
Description of study site 
Data 
SpeciesPhalacrocorax carbo sinensis
Start year1981
End year2004
Continuous collection of dataYes
Gap years 
Longest data collection 
Taggingcoloured leg ring
Brood data collectedbrood size, fledge date, lay date
Individual data collectedage, size (weight, wing, tarsus, etc.), identity of parents if possible
Environmental data collected 
Genetic data collected 
Experimental manipulations 
Description of experimental manipulations 
Other activitiesMonitoring second broods. Daily searches for colour-ringed individuals in the colony from an observation tower. So date of first and last observation for all colour-ringed individuals observed in the colony. Fledgling production for each colour-ringed individual (if possible to record it). ID of the partner if the partner was colour-ringed. Location of nest (tree number and height in the tree). Behaviour/activity of colour-ringed individuals.

Details

Country
Denmark
Species
Continental great cormorant
Pipeline
No
Running period
1981–2004
ID data
Colour rings
Individual data
Morphological measures
Habitat
Deciduous
Basic breeding
Yes
Feeding at nest data
No