DENSITY-DEPENDENT REGULATION OF RAMET POPULATIONS WITHIN THE BUNCHGRASS SCHIZACHYRIUM-SCOPARIUM - INTERCLONAL VERSUS INTRACLONAL INTERFERENCE Academic Article uri icon

abstract

  • Ramet populations were under density-dependent regulation due to both interclonal and intraclonal interference: ramet recruitment increased by 57% and 71% following the reduction of interclonal and intraclonal interference, respectively, during the 2 growing seasons the populations were monitoried. Some 70% of the ramet recruitment occurred on the clone periphery, rather than in the interior, irrespective of interferences from neighbouring ramets or clones. Ramet recruitment responded more rapidly to the reduction of interclonal rather than intraclonal interference, even though the total number of ramets recruited did not differ significantly. Asynchronous recruitment responses suggest that these two categories of interference may be temporally separated within the growing season. Reduction in either interclonal or intraclonal interference extended the seasonality of ramet recruitment and increased total recruitment but did not affect ramet survivorship or reproductive development in comparison with non-thinned clones. Only 5% of the ramets initially marked survived throughout the 16-month investigation and the half-lives of cohorts recruited during the investigation ranged between 3-9 months. -from Authors

published proceedings

  • JOURNAL OF ECOLOGY

altmetric score

  • 3

author list (cited authors)

  • BRISKE, D. D., & BUTLER, J. L.

citation count

  • 51

complete list of authors

  • BRISKE, DD||BUTLER, JL

publication date

  • December 1989

publisher