You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Genetic Relatedness Influences Plant Biomass Accumulation in Eelgrass (Zostera marina)
John J. Stachowicz, Stephanie J. Kamel, A. Randall Hughes and Richard K. Grosberg
The American Naturalist
Vol. 181, No. 5 (May 2013), pp. 715-724
Stable URL: http://www.jstor.org/stable/10.1086/669969
Page Count: 10
You can always find the topics here!Topics: Genotypes, Phenotypic traits, Biomass, Biological taxonomies, Productivity, Functional diversity, Genetic relationships, Field surveys, Species, Modeling
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
AbstractIn multispecies assemblages, phylogenetic relatedness often predicts total community biomass. In assemblages dominated by a single species, increasing the number of genotypes increases total production, but the role of genetic relatedness is unknown. We used data from three published experiments and a field survey of eelgrass (Zostera marina), a habitat-forming marine angiosperm, to examine the strength and direction of the relationship between genetic relatedness and plant biomass. The genetic relatedness of an assemblage strongly predicted its biomass, more so than the number of genotypes. However, contrary to the pattern observed in multispecies assemblages, maximum biomass occurred in assemblages of more closely related individuals. The mechanisms underlying this pattern remain unclear; however, our data support a role for both trait differentiation and cooperation among kin. Many habitat-forming species interact intensely with conspecifics of varying relatedness; thus, genetic relatedness could influence the functioning of ecosystems dominated by such species.
© 2013 by The University of Chicago. All rights reserved.