Energy and Ecology
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Behavioral Ecology
Research from University of Sydney provides new data on behavioral ecology
November 7th, 2008
"Why are some animals active by day and others by night' The selective forces that favor diurnal versus nocturnal activity may be evaluated by comparing age classes within a species that exhibits intraspecific (ontogenetic) variation in activity times. In many species of toads, adults are nocturnally active but postmetamorphic animals are primarily diurnal," scientists in Sydney, Australia report. "The small body sizes of these animals render them vulnerable to desiccation and overheating-so why are they active by day' To answer this question, we studied an invasive population of cane toads (Bufo marinus) in tropical Australia. In the field, these small toads often...
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Source: Energy and Ecology (2008-11-07)
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