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Abstract Detail


Conservation Biology

Badtke, Laura [1], Gschwend, Andrea [1], Koontz, Jason [1].

Genetic diversity in the endangered Bakerís larkspur: Implications for conservation.

BAKERíS larkspur, Delphinium bakeri, is found in only one remaining population in Marin County, California and is listed as endangered under the Endangered Species Act. The population, at one time numbering around 100 plants, is located along a roadside and currently consists of an estimated 6 individuals after being mowed in 2002, followed by damages from wildfires, a mudslide, and road scraping in 2004. This dwindling population requires immediate attention to assess the diversity of the remaining individuals in order to plan future conservation efforts. We used 437 AFLP (amplified fragment length polymorphism) markers to assess levels and patterns of genetic diversity in D. bakeri on samples collected in 2001, 2002, 2003, and 2004. These estimates will establish base-line genetic variation to assess the scale of the genetic bottleneck that this population has experienced and will be applied to continued conservation efforts. Future goals for this research consist of examining genetic diversity in seedlings of D. bakeri grown from seeds collected from the wild population, and comparing these AFLP data to other diversity markers (e.g., allozymes and RAPDs).


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1 - Augustana College, Department of Biology, 639 38th Street, Rock Island, Illinois, 61201, USA

Keywords:
threatened species
conservation genetics
larkspur
Delphinium
genetic diversity
AFLP.

Presentation Type: Poster:Posters for Topics
Session: 48-66
Location: Auditorium/Bell Memorial Union
Date: Tuesday, August 1st, 2006
Time: 12:30 PM
Abstract ID:349


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