The relationship between popularity and body size in zoo animals

Article Abstract:

Larger animals in zoos are more expensive to maintain compared to smaller animals. As a result, zoos could contribute much more to conservation efforts if they concentrate on smaller species. However, they could alienate the public if the number of larger animals are reduced. Researchers studying the relationship between animal size and popularity of certain zoos found that most adults and children prefer to view larger animals. Therefore, zoos could face declining popularity and public funds if they concentrate solely on smaller species.

Research, Economic aspects, Wildlife conservation, Zoos

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The genetic component of copula duration in the yellow dung fly

Article Abstract:

The copulation duration in yellow dung fly, Scathophaga stercoraria, is determined by heredity to a considerable extent. The full sibling analysis of the heritabilities of copulation duration, body size and development time, and their genetic covariances shows high heritability of body size and moderate heritability of development time. The results tally with the general trend in several species. The copulation duration increases with Julian date or age, and additive genetic variation amounts to only 33-39% of the phenotypic variation.

Sexual behavior, Genetic aspects, Flies, Diptera, Sexual selection in animals, Sexual selection (Natural selection)

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Zoo visitor preferences: reply to Balmford

Article Abstract:

A reanalysis of the data from Zurich Zoo reveals that larger animals are more popular than smaller ones even when exhibit cost is factored in.

Switzerland, Evaluation, Zurich, Switzerland (City), Environmental aspects

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