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Documents disponibles écrits par cet auteur (7)
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Article
T. Solonen, AuteurStudies at various localities in Europe have shown that nest-box populations of tits in urban habitats produce fewer eggs and fledglings than do birds in rural habitats. The results of the present 7-year study on dense urban and moderately dense[...]
Article
T. Solonen, AuteurLarge-scale patterns and variations in the occurrence and breeding of the Tawny Owl Strix aluco in Finland was studied in relation to the availability of small voles and wintering birds as well as to general weather conditions of the preceding w[...]
Article
T. Solonen, Auteur ; J. Karhunen, AuteurRelationships between the wintering conditions, vole abundance, and food and breeding success of a population of Tawny Owls in Uusimaa, southern Finland, were studied during a 15-year period (1986-2000). There were no significant trends in the w[...]
Article
T. Solonen, AuteurThe effects of large-scale climatic phenomena on the timing of breeding in the Osprey Pandion haliaetus were studied during 1981-2006 in a small local population of about 20 pairs near the southern coast of Finland. The timing of breeding was es[...]
Article
T. Solonen, Auteur ; M. Lodenius, Auteur ; E. Tulisalo, AuteurWe examined levels of five metals (Al, Cu, Zn, Cd, Pb) in feathers of six species of birds of various food chains. In the primary consumers (Columba livia), the variability of the levels of all the metals studied was relatively high. Among the s[...]
Article
T. Solonen, AuteurThe relationships between weight, abundance (as a measure of availability), and vulnerability of prey of the Sparrowhawk were studied on the basis of five data sets from the Nordic countries. The purpose of the study was to find out whether the [...]
Article
T. Solonen, AuteurRelationships between winter temperatures, vole abundance, and the occurrence and breeding of various vole-eating owls were studied on the basis of Finnish data collected in 1986-2000. The species included two resident generalists (Tawny Owl Str[...]
