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Journal Article

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
Biotropica
Vol. 22, No. 3 (Sep., 1990), pp. 305-309
DOI: 10.2307/2388542
Stable URL: http://www.jstor.org/stable/2388542
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Low Predation Rates in the Field by the Tropical Spider Tengella radiata (Araneae: Tengellidae)
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Abstract

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.

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