Titlebook: Environmental Factors in Mammal Reproduction; Desmond Gilmore,Brian Cook Book 1981 Palgrave Macmillan, a division of Macmillan Publishers

成份

Environmental factors affecting the length of gestation in mammalslt from ingestion of toxic shrubs by the mother (Holm, 1967). In other species, the metabolism of extrafetal tissue such as the chorion may be more important in the initiation of parturition (Liggins, 1979).

GULP

Thermal influences on sexual maturation in the ratntal cues of various forms. This superimposition of the external environment on the endogenous feedback loops may result in an alteration of the timing of initiation and the rate of change in the maturation process which results in adult sexual and reproductive function.

inquisitive

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Internal responses to environmental stimuli changing day-length or increasing temperature, are known to trigger off growth or regression of the reproductive organs in a whole variety of species, and nutrition, stress, tactile and olfactory stimuli can influence the onset of breeding and affect fertility. Although it now appears obvious that

countenance

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AFFIX

Environmental influences on the sexual behaviour of Rhesus monkeysecological niche, exhibit a flexibility of behaviour, communication and social organisation that is almost unrivalled in the animal kingdom. Consequently, the individual can perceive and respond to many different stimuli simultaneously and, by the same token, has many options when responding to a gi

craven

Pheromones, social influences and population regulation in rodents, 1965; Krebs, Graines, Keller, Myers and Tamarin, 1973). Many of these population regulation models involve environmental factors such as food, social interactions and shelter as cues which, either directly or indirectly through interactions with social density, trigger regulatory mechanisms. The a

FOR

The involvement of pheromones in the mating behaviour of the female ratents involving reciprocal male and female interactions. Feminine attractivity constituted the stimuli which produced male appetitive responses. The term proceptivity was applied to the appetitive reaction of a female evoked by stimuli originating from the male. Receptivity was defined as the female’

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