General Information
Data owner Tore Slagsvold/University of Oslo
Contact Tore Slagsvold, Department of Biosciences, Univesity of Oslo, P.O. Box 1066, Blindern, N-0316 Oslo, Norway
Institution Department of Biosciences, Univesity of Oslo
Conditions of use/Licence Agreement with the data owner
Data available via pipeline No
Quality check of the original data The quality control is considered to be good because the data are mainly entered and proof-read by Slagsvold.

 

Study site
Name Dæli, Norway
Size (ha) 12
Major site changes During 2003-18: 13-14 ha; after 2019: 12 ha. 
Latitude 59°56'N
Latitude 10°33'E
Number of nest boxes (min) 422
Number of nest boxes (max) 555
Vegetation Type Mixed deciduous and coniferous woodland with a few patches of farm land
Description of study site The study area is on a south facing slope and thus the vegetation is rich for its northern latitude

 

Species
Species Great tit, blue tit, coal tit, nuthatch, pied flycatcher
Start year 1995
End year NA
Continuous collection of data Yes
Gap years no
Longest data collection 25
Parental ID's recorded Yes. In some years at most nests, in other years few.
List of basic breeding data collected For GT and BT: Laying date, clutch size, hatching date, number hatched, number fledged, body mass of nestlings when 15 (14-16) days old
Description of the protocols for breeding data collection NA
Description of the protocols for taking individual level measurements Using the common methods for: body mass (Pesola spring balances), wing length (maximum, ruler with zero stop), tarsus length (calipers)
Experimental manipulations Yes 
Description of experimental manipulations Cross-fostering between GT and BT
Predation events recorded Yes
How are second clutches recorded? Based on identity of female

 

Catching data
Individual data Yes
Type of individual data For GT and BT: age, immigration status, size (wing, weight, leg, beak); personality scores (only for a few years)
Feeding data Yes, for some years (Slagsvold & Wiebe 2011, 2018)
Type of feeding data Prey items provided by parents (from video recording)
Other catching data Incubation behaviour for a few GT nests; degree of egg covering during the egg-laying period in GT and BT (from 2016-19)
Roosting checks No
Winter ringing No, but much mist net trapping and ringing of GT and BT in autumn (Sept-Nov) in most years
Colour rings Yes
Tags No
Other No

 

Genetic data
Blood samples GT and BT: for some years
Feather samples No
Other samples NA
Samples analysed Some

 

Environmental data
Food availability data No (only seasonal changes in frass fall)
Temperature data The Norwegian Meteorological Institute.  Station Blindern may be used (about 15 km from the study area).
Rainfall data The Norwegian Meteorological Institute.  Station Blindern may be used (about 15 km from the study area).
Other environmental data NA