Evolution

Download e-book for kindle: Animal Behavior: Mechanism, Development, Function, and by Chris Barnard

By Chris Barnard

ISBN-10: 0130899364

ISBN-13: 9780130899361

Animal behaviour has been one of many fastest-growing clinical disciplines of modern years. Its impression at the method we predict approximately biology has spawned lucid 'best sellers' just like the egocentric Gene and common medical and public debate approximately our view of the flora and fauna and our position in it. This ebook offers a complete creation to the research of behaviour, from its foundation within the animal's anatomy and body structure to its adaptive worth within the atmosphere. it really is aimed toward undergraduate scholars within the organic sciences and psychology and is designed to function either an in depth creation and an intensive, up to date resource of reference allowing scholars to pursue subject matters within the basic literature.

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Additional info for Animal Behavior: Mechanism, Development, Function, and Evolution

Sample text

7), good evidence that magpies were adjusting their clutch sizes according to their ability to rear chicks. 5). As a result, local song ‘dialects’ (Marler & Tamura 1962) can form in which clusters of neighbouring males sing similar songs that are different from those of males further away (Fig. 8). However, local dialects are not a ubiquitous feature of songbird species. One reason for this might be that differences in dispersal and breeding seasons between species affect the acquisition of songs.

This implies that the goal is recognised when it is encountered rather than the behaviour resulting in its discovery (restlessness) being driven by a prior internal representation. Template recognition in certain molecular systems, such as ‘lock and key’ enzyme–substrate complexes, would be an analogous process. In ‘goal-seeking’ systems, on the other hand, there is no representation or recognition of the goal at all. The apparent attainment of a goal is due entirely to the physical forces acting on and/or within the system.

In the shrew example the experimenter might test the hypothesis that shrews select prey to maximise their net rate of energy intake by pitting it against a plausible alternative, such as shrews forage randomly but take mainly the most profitable prey because these just happen to be the most active and easily noticed. Experiments controlling the shrews’ encounters with different quality prey or varying the relationship between quality and noticeability would help distinguish between these possibilities.

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Animal Behavior: Mechanism, Development, Function, and Evolution by Chris Barnard


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