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Partitioning of Reproductive Effort in Clonal Plants: A Benefit-Cost Model

Craig Loehle
Oikos
Vol. 49, No. 2 (Jun., 1987), pp. 199-208
Published by: Wiley on behalf of Nordic Society Oikos
DOI: 10.2307/3566027
Stable URL: http://www.jstor.org/stable/3566027
Page Count: 10
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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.
Partitioning of Reproductive Effort in Clonal Plants: A Benefit-Cost Model
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Abstract

The quantitative model developed predicts the allocation of energy in plants to sexual and vegetative reproduction by analyzing relative costs and benefits. The model incorporates the cost of nutrients. The concepts of environmental information and uncertainty are used to assess the plant's estimate of reproductive success. The model specifically predicts changes in reproductive effort in response to changes in nutrients, shade, crowding, and environmental cues. The model is compared with r versus K theory, allometric, demographic, and other models. It is shown that the models are experimentally distinguishable and that the data do tend to support the benefit-cost model.

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