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The study of speciation and maintenance of species barriers is at the core of evolutionary biology. During speciation the genome of one population becomes separated from other populations of the same species, which may lead to genomic incompatibility with time. This separation is complete when no fertile offspring is produced from inter-population matings,(More)
Analysis of factors that influence stopover departure decisions in migrating birds is an important step in understanding their movements. We studied body condition, refuelling efficiency and weather during arrival and subsequent departure of migrant European Robins Erithacus rubecula at a stopover site on the Courish Spit (Eastern Baltic) to explain why(More)
Dataset on departure fuel loads, stopover length and fuel deposition rate of the European robins Erithacus rubecula during their migration in the Baltic area is presented. We test these empirical data against the predictions of an optimal migration model assuming that robins minimize time spent on migration, and that fuel deposition rate varies(More)
Most songbird migrants travel between their breeding areas and wintering grounds by a series of nocturnal flights. The exact nocturnal departure time for these flights varies considerably between individuals even of the same species. Although the basic circannual and circadian rhythms of songbirds, their adaptation to migration, and the factors influencing(More)
99 Interest of specialists to the problem of impact of climate on the biosphere is constantly growing throughout the world [1, 2]. Longgterm data on change in the timing of seasonal events in various organisms, longgterm dynamics of their numbers, range expansions and other ecological consequences of climate change are published regularly [3–5]. Howw ever,(More)
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