Desiccation in the Black Dragon, Hagenius brevistylus Selys

TitleDesiccation in the Black Dragon, Hagenius brevistylus Selys
Publication TypeJournal Article
Year of Publication1979
AuthorsTracy BJean, C. Tracy R, Dobkin DS
JournalExperientia
Volume35
Issue6
Pagination751-752
KeywordsWATER LOSSES
Abstract

Hagenius brevistylus lost mass by evaporation in a moderately desiccating environment at the rate of 20.4 mg/h, and died of desiccation in less than 1 day at a body mass of 79.8% of their normally hydrated mass. It was estimated that Hagenius minimally would have to consume the equivalent of 60% of its body mass each day to meet its daily water requirements. This amount of food is equivalent to that necessary to power flight of a dragonfly for 4.6 h.