Map of Kevo
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Details

Country
Finland
Species
Common redstart
Great tit
Pied flycatcher
Siberian tit
Pipeline
Yes
Max. nr nestboxes
1289
Running period
1981–Present
Environmental data
Food availability
Rainfall
Temperature
Individual data
Morphological measures
Physiological data
Habitat
Mixed
Basic breeding
Yes
Feeding at nest data
Yes
No data available Request data
General Information
Data owner Tapio Eeva
Contact teeva@utu.fi
Institution Department of Biology, University of Turku
Conditions of use/Licence Dataset available via request to the HNB database. Authorization asked from Tapio Eeva.
Data available via pipeline Yes
Is there any quality check of the original data Some cross-checking done after the field season and information corrected when erroneous values are observed during the data analyses. For some variables, filling impossible values is prevented in the database.
Study site
Name Kevo
ID KEV
Country Finland
Size (ha) 364
Major site changes Yes. Area varied between 28 and 364ha.
Latitude 69° 45' N
Latitude 27° 01' E
Number of nest boxes (min) 100
Number of nest boxes (max) 1,289
Vegetation Type Mixed
Description of study site The study area lies by the northern forest limit of Scots pine Pinus sylvestris, which forms mixed stands with the mountain birch Betula pubescens spp. Czerepanowii. In the field layer, dwarf schrubs Vaccinium spp. and Empetrum nigrum dominate, besides with lichens and moss. Eeva, T., Lehikoinen, E. & Veistola, S. 1989. Ornis Fennica 66: 142-150
Species
Species Pied flycatcher, great tit, Siberian tit, common redstart
Start year 1981
End year NA
Continuous collection of data No. There are three missing years and imperfect data between 1981 and 2009.
Gap years 1998, 2006, 2007
Longest data collection 17
Parental ID's recorded Yes. For some years, most commonly for Ficedula hypoleuca and Parus cinctus females in 1980's.
List of basic breeding data collected Laying date, Clutch size, Hatching date, Number of hatchlings, Number of fledglings, Biometrics for nestlings and parents
Description of the protocols for breeding data collection Nest boxes were normally checked weekly to record final clutch size, number of hatchlings and number of fledglings, and to ring nestlings. The number of hatchlings was determined from the numbers of recently hatched nestlings and unhatched eggs. The number of fledglings was determined from the numbers of nestlings prior to fledging and those found dead in the nest after fledging. Nests were thoroughly inspected for unhatched eggs and dead nestlings after fledging. Especially for pied flycatcher, nests were also inspected for remaining snail shells (as a calcium source) and ectoparasites. First egg laying date was calculated back from the number of non-incubated eggs, or from hatching date if the nest was not visited during the laying period.
Description of the protocols for taking individual level measurements Nestling wing length was measured with a ruler to the nearest 1 mm and hatching date was estimated from the wing length of small nestlings by comparing it with growth curves of nestlings with known age. Wing length was also normally measured when nestlings were ringed. Body mass was measured to the nearest 0.1g with Pesola spring balances. Parent birds were aged by their plumage characteristics into two age-classes, one year old or older, mainly on the basis of the shape of the primary coverts, primaries and tail feathers.
Experimental manipulations Yes
Description of experimental manipulations
  • 2016: 1 unincubated egg of great tit & pied flycatcher was taken for thyroid hormone measurements.
Predation events recorded Yes
How are second clutches recorded? Replacement and second clutches are included. Their classification is mainly based on their timing of breeding in each study year (done during the field season). Often, appearance of a replacement in one of the neighbouring nest boxes is obvious after a nest failure, and in some cases replacement and second nests are confirmed with ring number by capturing parent birds.
Catching data
Individual data Yes
Type of individual data Age, Size (wing length, tail length, body mass, fat score)
Feeding data Yes
Type of feeding data Video recordings and direct observation at nest.
Other catching data Forage niche mapping
Roosting checks No
Winter ringing No
Colour rings No
Tags No
Other NA
Genetic data
Blood samples No
Feather samples No
Other samples NA
Samples analysed NA
Environmental data
Food availability data Yes. Pitfall traps, frass collectors, sweep netting and tree-knocking. Feeding frequency data. See Veistola, S., Eeva, T. & Lehikoinen, E. 1995. Entomologica Fennica 6: 177-181.
Temperature data Finnish Meteorological Institute. Stations: Utsjoki, Kevo
Rainfall data Finnish Meteorological Institute. Stations: Utsjoki, Kevo
Other environmental data NA

Details

Country
Finland
Species
Common redstart
Great tit
Pied flycatcher
Siberian tit
Pipeline
Yes
Max. nr nestboxes
1289
Running period
1981–Present
Environmental data
Food availability
Rainfall
Temperature
Individual data
Morphological measures
Physiological data
Habitat
Mixed
Basic breeding
Yes
Feeding at nest data
Yes