A comparison between two models for plant competition
作者:
B. W. R. TORSSELL,
A. O. NICHOLLS,
期刊:
Australian Journal of Ecology
(WILEY Available online 1976)
卷期:
Volume 1,
issue 1
页码: 29-35
ISSN:0307-692X
年代: 1976
DOI:10.1111/j.1442-9993.1976.tb01090.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
AbstractThe differential equation of de Wit (1970) which predicts the growth of plant species in mixtures from their yield–density response in monocultures is compared with a simpler equation. This model is also based on the yield–density response of species grown in monocultures, but is static and predicts only the net result of plant competition during discrete time periods.Data from successive harvests in yield–density experiments in monocultures of one grass and two legume species were fitted to both models and the relative reproductive rate and the relative replacement rate were calculated from model predictions. Predictions from our model agreed more closely with observations than predictions from the de Wit model. It is concluded that our model deserves further attention in the studies of population dynamics in mixtures when the final outcome of competition is the main int
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