Bird Migration Ian Newton William Collins Αγγλικά Βιβλία Science Natural History

The Phenomenon Of Bird Migration Has Fascinated People From Time Immemorial Arrivals And Departures Different Species Marked Seasons Heralding Spring Autumn Providing A Reliable Calendar Long Before Anything Better Became Available Is Shown By Many Kinds Animals Including Butterflies Other Insects Mammals Marine Turtles Fish But In None It As Extensively Developed Birds Collective Travel Routes Span Almost Entire Globe With Some Extreme Return Journeys Covering More Than 30 000 Km Result Distributions Are Continually Changing – Regular Seasonal Patterns On Local Regional Or Global Scales Repeatedly Prompted Familiar Questions Such Where Go Come Why Do They How Know When To Find Their Way? This Seminal New Book Ian Newton Sets Out Answer These Divided Into Four Main Sections: First Introductory Describing Types Movements Methods Study Seen Around British Isles Second Part Concerned Mainly Process Timing Energy Needs Weather Effects Navigation Third Evolution Change Migratory Behaviour Fourth Geographical Ecological Aspects Σελίδες: 608 Διαστάσεις: 12 9X12 9Cm