An experimental demonstration of density-dependent reproduction in a natural population of Diamorpha smallii, a rare annual

Keith Clay, Ruth Shaw

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

In a North Carolina population of Diamorpha smallii, densities were artificially manipulated by thinning stands to predetermined densities. Individuals in areas of high density produce fewer seeds than individuals at low density in the same habitat. Three components of fecundity, the number of flowers per plant, the number of fruits per plant, and the number of seeds per fruit, were negatively correlated with density. The relationship of components of fecundity to density were used to develop a model of population regulation for this species. These results and predictions from the model are discussed in relation to other density studies.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalOecologia
Volume51
Issue number1
DOIs
StatePublished - Oct 1 1981

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