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Fly Now, Die Later: Life-History Correlates of Gliding and Flying in Mammals
Donna J. Holmes and Steven N. Austad
Journal of Mammalogy
Vol. 75, No. 1 (Feb., 1994), pp. 224-226
Published by: American Society of Mammalogists
Stable URL: http://www.jstor.org/stable/1382255
Page Count: 3
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A recent study of seasonal influences on energetics in the southern flying squirrel, Glaucomys volans (Stapp, 1992, Journal of Mammalogy, 73:914-920), compares metabolic and life-history variables in gliding and nongliding arboreal sciurids and interprets them largely in the context of thermoregulatory constraints. We consider an alternative explanation for the "K-selected" traits of flying squirrels from evolutionary senescence theory and the comparative life-history literature. Comparative analyses reveal convincing evidence for the impact of mortality patterns on life histories of mammals and for gliding and flying as adaptations promoting the evolution of longevity.
Journal of Mammalogy © 1994 American Society of Mammalogists