LIFESCI 2D03 Chapter 6: Chapter6_Communication.pdf
15 Nov 2014
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Document Summary
Communication occurs when a specialized signal from one individual influences the behaviour of another. Signals are perceived by sensory systems and influenced by the environment. Signals can accurately indicate signaler phenotype and environmental conditions. Signals can be inaccurate indicators when the fitness interests of signaler and receiver differ. Nerve endings that respond to an internal or external environmental stimulus. Volatile (gaseous) compounds that are species-specific and affect the behaviour of another individual of the same species. Disruption in implantation due to presence of a novel male (bruce, 1959) Decrease in time to sexual maturity due to presence of a novel male (vandenbergh, 17 -estradiol & testosterone in male urine (muir et al. , 2001) Castrated males lose ability to disrupt pregnancy, unless given 17 -estradiol (decatanzaro et al. , 1995) Females given 17 -estradiol antibodies retain their pregnancy (decatanzaro et al. , 1994)
