Searching today for tomorrow's mates
Article Abstract:
Male thirteen-lined ground squirrels, Spermophilus tridecemelineatus, possess the capacity to anticipate when some of the females can become fertilizable and relocate individual females. Male perceptiveness and spatial ability is favored by competitive mate searching. The interaction between male and female species, observed for a day, showed that male reaction to the removal of a female was based on her reproductive state. Males searched more extensively for females who were in oestrus.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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How to minimise sample sizes while preserving statistical power
Article Abstract:
Data collection has to be carried out with statistical power in mind. Ethics, finance, and effort act as constraints on how much data can be collected. Sample size can be increased to enhance statistical power, but measurement error can also be reduced to achieve the same effect. This is illustrated through ornithological research. Data on parental behaviour and food delivery was collected for this study, with single-hour sampling.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
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Adult male house mice born to undernourished mothers are unattractive to oestrous females
Article Abstract:
A study of the preferences of the oestrous females for the odor of the adult house mice revealed that the oestrous females preferred the odor of sons of well nourished females and heavier males. Thus, the sons of undernourished mothers might not be chosen as mates as frequently. They might also have less reproductive potential. The findings suggest that the skewed secondary sex ratios of undernourished female mice are adaptive.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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