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Bird population index in agricultural environments

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9/24/2025
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12/22/2015
Yes
The Finnish Museum of Natural History of the University of Helsinki LUOMUS
Luke_Ind_Lintupop_01
Luke/Tilastot
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The farmland bird indicator consists of the population development indices of 14 species starting from 1979. On the basis of the bird population index, status indicators can be defined for agricultural environments. These combine the long-term development of the population of all species appearing in specific living environments. As a result, it is possible to identify how different species survive in specific environments. The initial index level is the year 2000 (2000 = 1). The line transect census is the key method. These types of censuses have been taken since 2006 at intervals of 25 km over a standard route network covering the whole of Finland. There are a total of 565 routes of 6 km. Annually, roughly half of them are covered. The census covers the corn crake, the northern lapwing, the Eurasian curlew, the Eurasian skylark, the barn swallow, the common house martin, the meadow pipit, the whinchat, the fieldfare, the common whitethroat, the western jackdaw, the common starling, the Eurasian tree sparrow and the ortolan bunting.