SIZE AND ECOLOGICAL SIGNIFICANCE OF THE PHYSIOLOGICAL INDIVIDUAL IN THE BUNCHGRASS SCHIZACHYRIUM-SCOPARIUM

abstract

• Growth of two-generation ramet hierarchies in a controlled environment and juvenile ramets within two-generation hierarchies in the field were suppressed by 58 and 26%, respectively, when severed from the clone. Parental ramets (secondary generation) incurred a 50% reduction in mass by sustaining growth of juvenile ramets within two-generation hierarchies. Severance of vascular connections between the primary ramet (common progenitor of the clone) and all secondary-tertiary hierarchies within the clone increased resource availability for the remaining experimental hierarchy which significantly increased juvenile ramet mass, leaf number and leaf area. Survivorship of juvenile ramets was not affected by severing ramet hierarchies from the clone, but leaf recruitment, ramet recruitment and juvenile ramet reproductive development were significantly suppressed. -from Authors

authors

• Briske, David

published proceedings

• OIKOS

author list (cited authors)

• WILLIAMS, D. G., & BRISKE, D. D.

citation count

• 20

complete list of authors

• WILLIAMS, DG||BRISKE, DD

publication date

• October 1991

publisher

• JSTOR  Publisher

published in

• Oikos  Journal

Digital Object Identifier (DOI)

• 10.2307/3545444

start page

• 41

end page

• 47

volume

• 62

issue

• 1

URL

• http%3A%2F%2Fdx.doi.org%2F10.2307%2F3545444