Temperature regulation in the nesting mounds of the mallee-fowl, Leipoa ocellata Gould

Abstract

The temperature conditions in the mounds of the mallee-fowl, Leipoa ocellata Gould, have been investigated by means of recording instruments. It is shown that the incubation of the eggs is largely achieved by heat generated by the fermentation of organic matter. By manipulation of the covering soil the birds keep the temperature within the range at which egg development takes place. The principal activity is designed to keep the mound temperature down. Towards the end of the season the heat from the Sun becomes important, and at the end of the season active steps are necessary to increase the amount of heat reaching the eggs from this source.