Edge Effects and the Population Structure of Humboldt Bay, California, Eelgrass (Zostera marina L.)
Author
Source
International Journal of Ecology
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-11-23
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The physical structure of a habitat (e.g., fragmentation) may affect the distribution of genetic diversity within a population, and genetic diversity may alter ecological function.
This study investigates the population genetics of Humboldt Bay, California, eelgrass in light of the habitat’s fragmented physical structure.
Historical and ongoing dredging operations in the bay maintain channels between fragmented tidal mudflats that are inhabited by eelgrass.
A sample of 469 individuals, from 11 discrete fragments, was genotyped using microsatellite analysis.
Ramets were collected at multiple points located at the edge and in the interior of each fragment.
The sampling scheme was designed to detect evidence of population structure within and between fragments, as well as between edge and interior bed positions.
Genetic diversity is not shown to differ among fragments and is not consistent with widespread clonality.
Heterozygosity levels indicate that Hardy-Weinberg equilibrium predominates across loci in most instances.
Comparisons of edge and interior bed positions also reveal similarities between positions for the metrics described above.
Results suggest efficient gene flow between fragments and between bed positions.
Such findings, which indicate the unstructured nature of the population, can guide resource managers in making evolutionarily informed conservation decisions by discouraging assumptions of low genetic diversity and insignificant sexual reproduction.
American Psychological Association (APA)
Neely, Joshua S.. 2014. Edge Effects and the Population Structure of Humboldt Bay, California, Eelgrass (Zostera marina L.). International Journal of Ecology،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1036644
Modern Language Association (MLA)
Neely, Joshua S.. Edge Effects and the Population Structure of Humboldt Bay, California, Eelgrass (Zostera marina L.). International Journal of Ecology No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1036644
American Medical Association (AMA)
Neely, Joshua S.. Edge Effects and the Population Structure of Humboldt Bay, California, Eelgrass (Zostera marina L.). International Journal of Ecology. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1036644
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036644