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The effect of established plants on recruitment in the annual forbSinapis arvensis

✍ Scribed by Mark Rees; Valerie K. Brown

Publisher
Springer-Verlag
Year
1991
Tongue
English
Weight
561 KB
Volume
87
Category
Article
ISSN
0029-8549

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✦ Synopsis

The germination response of Sinapis arvensis to the presence of established plants was investigated in a greenhouse experiment. Established conspecific and heterospecific plants were found to inhibit germination and reduce the probability of recruitment of those seeds that germinate. Established plants have no effect on seed mortality in the soil. Using a simple recruitment model, it is demonstrated that the combination of variance in germination time coupled with the interaction between buried seeds and established plants can generate density dependence. The implications of these results for community processes, such as succession, are discussed.

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