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At least 37 records · Page 2Linked to original sources
PubMed1976

Heart rate in spiders: influence of body size and foraging energetics.

Resting heart rates in 18 species of spiders as determined by a cool laser transillumination technique range from 9 to 125 beats per minute. Cardiac frequencies obtained in this fashion may readily serve as a measure of standard rates of metabolism. A spider's resting heart rate is a function of body size and of foraging energetics.

Animals↗
PubMed1978

Foraging patterns of nonhuman primates and the nature of food preferences in man.

1) There are a variety of foraging and dietary patterns among primates; different species have generally obligate food habits. 2) There are a number of convergent dietary patterns among primates that are not taxonomically dependent; closely related species may have very different food habits, while the diets of unrelated forms may be quite similar. 3) At least at a general level, relationships exist between dietary patterns and alimentary tract adaptations. Further comparative studies of the histology of the gut tract of primates in conjunction with detailed and quantitative studies of the food habits of natural populations are needed to determine if more precise dietary/digestive tract relationships exist. Studies of this type should lead to a better understanding of digestive physiology. However, whether we can ever determine the "natural diet" of man by such comparisons, of course, still remains an unanswered question.

Animals↗
PubMed1979

Feeding, foraging, and food sharing behavior of immature chimpanzees.

Observations of chimpanzees under naturalistic conditions show that nutritional autonomy increases as young individuals mature. Substantial proportions of feeding time are spent eating food obtained through solicitation. Food sharing at SOPF occurs among mother and infant pairs most frequently; less frequently between adult males and infants or juveniles, and least frequently between adult females and immature individuals. Mothers tend to share what their offspring cannot obtain independently while others primarily share what is easiest to replace. These patterns of solicitation and distribution of food are consistent with predictions based upon benefits to individuals through kin selection and/or energetic efficiency.

Animals↗