Titlebook: Elements of Ethology; A textbook for agric D. G. M. Wood-Gush Book 1983 D.G.M. Wood-Gush 1983 communication.conflict.evolution.hunger.physi

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engagement

Drinking Behaviour,e excretion of diluted urine and deficits in drinking are followed by the excretion of concentrated urine. Conservation is caused by the action of anti-diuretic hormone (ADH) from the posterior pituitary which acts directly on the kidney tubules to conserve water, and ADH output increases when blood

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Sexual Behaviour,p this dichotomy in mind and also to divide copulation by the male into its components of mounting, intromission and, depending on the species, possibly thrusting, and, finally, ejaculation. In the case of the female a form of courtship may exist but be difficult to discern. Generally oestrous femal

LEVY

Parental Behaviour,avian and two mammalian. While these do not cover a wide cross section of all types of parental behaviour, they do show some of the variation found in the two classes of animals in this behaviour and its controlling mechanisms. Two are common agricultural animals, the domestic hen and the ewe. Furth

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SPER

Exploratory Behaviour,ble, containing a high proportion of learnt responses, and is in a sense exploratory. However, there is another type of behaviour to which the term exploratory is applied. In this the animal appears to be exploring for the sake of exploring and satisfying its curiosity. In practice the two types of

Derogate

Conflict and Thwarting,otivational systems will arise frequently in animals. For example, an animal may want to approach a source of food, but be frightened of a dominant animal which is already there, so that it is then in a conflict between approach and avoidance. Another type of conflict may arise when initially only o

贪婪性

Aggression and Fear,ith fighting skill it will enhance the social status of the individual animal. It is the tendency to want to inflict damage on another. This definition does not distinguish between intra-specific aggression and inter-specific aggression but here we will only consider intra-specific aggression as it