Flight activity of Colias philodice eurytheme Boisduval in response to its physical environment

Thomas F. Leigh and Ray F. Smith

Hilgardia, 1959, vol. 28, issue 19

Abstract: Solar radiation appears to be the most important agent affecting body temperature, but its effect is in turn modified by air temperature and the cooling of the insect through evaporation. Under sufficiently high radiation, and when air temperature is not too low, Colias increases its body temperature by orienting perpendicular to the sun. When body temperature nears the critical high level, Colias appears able to regulate it by decreased flight, rest in shade or on moist soil or algal scum, or by taking water while at rest, thus permitting cooling without desiccation.

Keywords: Environmental; Economics; and; Policy (search for similar items in EconPapers)
Date: 1959
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