On oestrus advertisement, spite and sexual harassment

Article Abstract:

A model that was developed to explain the competition among male primates in response to estrus development in females would have been effective if it considered variations in the estrus cycle in all females. The model has also misinterpreted the notion of spite in relation to sperm competition among males. According to previous studies, spite is a type of behaviour that reduces the mating success of males and the females' chances of fertilization. The model failed to show the relationship between spite and the its cost on both male and female primates.

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Sexual selection and oestrus advertisement: a reply to Radwan

Article Abstract:

A simple evolutionary stable model was developed to explain the sexual behaviour among male primates in response to estrus swellings in the female. The model suggests that mating success in males is determined by the number of competing males and not on the number of females that are available for mating. A male's effort to mate a female coming into estrus depends on the amount of effort he will exert when competing with other males. This suggests that males select mates according to their projected reproductive success.

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Paternity analysis of alternative male reproductive routes among the langurs (Semnopithecus entellus) of Ramnagar

Article Abstract:

A study of a wild population of Hanuman langurs in Ramngar, Nepal, seeks to investigate male reproductive success in single-male and multimale groups.

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