| Popis: |
Avian migration is one of the most striking manifestations of environmental seasonality in areas with higher latitude and is therefore not surprising that the study of this phenomenon has attracted biologists since immemorial times. One of the interesting findings is the fact that the spring and autumn migration does not take place at all times with the same intensity, but in most species noticeable migration maxima (waves)can be observed, often present over large geographical areas. Such synchronicity in migration behaviour implies the existence of specific triggers that affect migratory species populations. The presented thesis summarizes the current state of knowledge of factors (e.g. climatic, lunar, solar etc.) affecting the timing and intensity of bird migration. Key words: migration ecology, Aves, climate |
