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Low Predation Rates in the Field by the Tropical Spider Tengella radiata (Araneae: Tengellidae)
Manuel Santana, William G. Eberhard, Giovanni Bassey, Kenneth N. Prestwich and R. Daniel Briceno
Vol. 22, No. 3 (Sep., 1990), pp. 305-309
Published by: Association for Tropical Biology and Conservation
Stable URL: http://www.jstor.org/stable/2388542
Page Count: 5
You can always find the topics here!Topics: Spiders, Weight gain, Predation, Mass, Female animals, Oxygen consumption, Animal traps, Metabolism, Cost estimates, Respirometers
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Marked individual Tengella radiata spiders showed low and variable rates of weight gain in the field in old lowland forest in Costa Rica. Calibration studies of weight gained on controlled diets in captivity and rates of metabolism allow extrapolation of field results to probable rates of predation in the field. The prey capture rate for this species is apparently substantially lower than those of other similar sized spiders.
Biotropica © 1990 Association for Tropical Biology and Conservation