Download e-book for kindle: Animal Migration, Orientation and Navigation by Sidney A. Gauthreaux

By Sidney A. Gauthreaux

ISBN-10: 0122777506

ISBN-13: 9780122777509

Animal Migration, Orientation, and Navigation offers a few of the elements of animal migration, together with the evolution of migration, climatic and meteorological impacts, and bioenergetics. This publication discusses the physiological keep watch over, sensory structures, orientation and navigation, and organic clocks and phenology points of animal migration.

Organized into 5 chapters, this e-book starts off with an outline of the migration recommendations of animals within the context of an area continuum. this article then explains the effect of brief- and long term climatic cycles at the spectrum of migratory styles in nature. different chapters reflect on the full of life necessities of other migration suggestions and the strength shops of the migrants. This e-book discusses to boot the physiological foundation of animal migration, with emphasis on endocrinal findings at the timing and full of life points of alternative migration recommendations. the ultimate bankruptcy offers with the mechanisms utilized in path discovering through migrating animals.

This booklet is a helpful source for biologists and ecologists.

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Extra resources for Animal Migration, Orientation and Navigation

Example text

Arrangement is an approximate progression from completely long-winged populations to completely short-winged. a 32 Hugh Dingle less. The catholic G. lacustris has populations with environmentally in­ duced dimorphism (polyphenism of Shapiro, 1976), genetic dimorphism (polymorphism), and genetic short-winged monomorphism; G. thoracicus is almost as diverse. The gerrid system is maximally flexible as both longand short-winged morphs are known from at least some populations of all the species studied (Vepsäläinen, 1978).

The oceanic migration occurs from New Brunswick to Florida on the east coast of North America and over a similar range on the west coast where the species has been introduced. Tagging experiments indicate that ocean migration rates can be at least 21 km/day (Leggett, 1977a) and movement is at still higher speeds in fresh water (Dodson and Leggett, 1973, 1974). In both oceanic migration and upstream spawning runs there is a strong correlation be­ tween movements and water temperature. 5°C with the result that in southern rivers like the St.

Superstitiosus, on the other hand, do show a brief period of flight around 4 days posteclosion before histolysis and oocyte development. All three species are facultative migrants using starvation as a releasing cue, but there are differences in tactical details. Dysdercus fasciatus feeds primarily on baobab {Adansonia)ir\x\ts and faces an alternating "feast or famine" environment. It is the most opportunistic, shutting down the flight system completely when dehiscing fruits are available, but showing the strongest flight when they are not.

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Animal Migration, Orientation and Navigation by Sidney A. Gauthreaux

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