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Population Ecology of the Gray Bat (Myotis Grisescens): Factors Influencing Growth and Survival of Newly Volant Young
Merlin D. Tuttle
Vol. 57, No. 3 (May, 1976), pp. 587-595
Stable URL: http://www.jstor.org/stable/1936443
Page Count: 9
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Growth success and survival of newly volant young Myotis grisescens were observed in colonies traveling a variety of distances between the roost cave and foraging areas (0.0-6.6 km). Foraging occurred primarily over large rivers and reservoirs. Quality of the foraging area, climatic conditions, and cave temperatures were thought to be some of the potential factors influencing growth and survival, most noticably when distances traveled were minimal; however, when distance became excessive relative to the other variables, it was found to be a highly significant factor. Success in growth, percent of low-weight young, and mortality were closely correlated with the distances traveled by the colonies to their feeding areas.
Ecology © 1976 Wiley