Pertti Koskimies

Tmi Luontotieto

While collating contributions and comments from 36 researchers, the coordinating authors accidentally omitted Dr. Suzanne Carrière from the list of contributing co-authors. Dr. Carrière's data are described in Tables 1 and 3, Figure 2 and several places in the narrative.The new author list is thus updated in this article.

The peregrine falcon (Falco peregrinus) and the gyrfalcon (Falco rusticolus) are top avian predators of Arctic ecosystems. Although existing monitoring efforts are well established for both species, collaboration of activities among Arctic scientists actively involved in research of large falcons in the Nearctic and Palearctic has been poorly coord...

The peregrine falcon (Falco peregrinus) and the gyrfalcon (Falco rusticolus) are top avian predators of Arctic ecosystems. Although existing monitoring efforts are well established for both species, collaboration of activities among Arctic scientists actively involved in research of large falcons in the Nearctic and Palearctic has been poorly coord...

Northern Fennoscandia is one of the few areas in the world where there are system-atic and comparable data on the population density and breeding of the Gyrfalcon during the last 150 years. I have studied population ecology and conservation biology of the species in Finland and nearby areas on the Swedish and Norwegian side of the border since the...

The information in this update draws heavily on Icelandic Scandinavian, Finnish, and Russian sources (>100 citations), as well as on recent American and Canadian publications. Since 1980 research on the Gyrfalcon in the western Palearctic has increased greatly, especially in Iceland (O K Nielsen), Norway (P J Tommeraas and associates), Sweden (U Fa...

Birds are useful biological indicators of broad-scale habitat changes and environmental contaminants. Birds are especially suitable for detecting unexpected changes which cannot be observed by measuring pre-selected physical and chemical parameters, and for monitoring biological, often cumulative and non-linear consequences of many environmental ch...

Birds can be used as a tool in environmental monitoring. This statement results from relevant research and planning work done in Finland in recent years. Monitoring is seen as continuous quantitative research using standardized methods, which will reveal changes and causes of changes in the abundance and ecology of birds. The changes caused by huma...

Polygyny was observed in a luxuriant meadow optimal for the species. One of the 3 polygynous males paired with 2, another with 3 conspecific females; the 3rd male paired with a conspecific and a female marsh warbler Acrocephalus palustris. Polygyny was polyterritorial and successive. The number of young that left the nest was over twice as large in...