Abstract

Leptasterias spp. are six rayed sea stars that are found in rocky intertidal habitats ranging from the California coast to Alaska. In central California, Leptasterias spp. can be found in a variety of intertidal habitats in mixed populations. There are multiple clades that represent these populations and it is thought that they may vary behaviorally, including habitat preference. To investigate this individuals were collected from Pigeon Point, San Mateo, CA and characterized into two habitat categories according to where they were found: rocky habitat and pool habitat. To test for behavioral variation among habitats, righting response was used as a performance measure. Righting response time was measured in the field and was repeatedly measured in the lab under controlled conditions. It is hypothesized that individuals living in pool habitats are more mobile due to wave action and therefore will have a faster righting response. This study suggests that there may be significant performance differences among these habitat preferences and that this may also be reflected in the genetics. A methodology for further investigating these suggestions is offered here.

Disciplines

Ecology and Evolutionary Biology

Mentor

Sarah Cohen

Lab site

Romberg Tiburon Center for Environmental Studies (RTC)

Funding Acknowledgement

This material is based upon work supported by the S.D. Bechtel Jr. Foundation and is made possible with contributions from the National Science Foundation under Grant No. 1340110, Howard Hughes Medical Institute, Chevron Corporation, National Marine Sanctuary Foundation, and from the host research center. Any opinions, findings, and conclusions or recommendations expressed in this material are solely those of the authors. The STAR Program is administered by the Cal Poly Center for Excellence in STEM Education on behalf of the California State University system., This material is based upon work supported by the National Science Foundation under Grant No. 1340110 and is made possible with contributions from the S.D. Bechtel Jr. Foundation, Howard Hughes Medical Institute, Chevron Corporation, National Marine Sanctuary Foundation, and from the host research center. Any opinions, findings, and conclusions or recommendations expressed in this material are solely those of the authors. The STAR Program is administered by the Cal Poly Center for Excellence in STEM Education on behalf of the California State University system., This material is based upon work supported by the Howard Hughes Medical Institute and is made possible with contributions from the National Science Foundation under Grant No. 1340110, S.D. Bechtel Jr. Foundation, Chevron Corporation, National Marine Sanctuary Foundation, and from the host research center. Any opinions, findings, and conclusions or recommendations expressed in this material are solely those of the authors. The STAR Program is administered by the Cal Poly Center for Excellence in STEM Education on behalf of the California State University system., This material is based upon work supported by the Chevron Corporation and is made possible with contributions from the National Science Foundation under Grant No. 1340110, Howard Hughes Medical Institute, S.D. Bechtel Jr. Foundation, National Marine Sanctuary Foundation, and from the host research center. Any opinions, findings, and conclusions or recommendations expressed in this material are solely those of the authors. The STAR Program is administered by the Cal Poly Center for Excellence in STEM Education on behalf of the California State University system., This material is based upon work supported by the National Marine Sanctuary Foundation and is made possible with contributions from the National Science Foundation under Grant No. 1340110, Howard Hughes Medical Institute, Chevron Corporation, S.D. Bechtel Jr. Foundation, and from the host research center. Any opinions, findings, and conclusions or recommendations expressed in this material are solely those of the authors. The STAR Program is administered by the Cal Poly Center for Excellence in STEM Education on behalf of the California State University system.

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URL: http://digitalcommons.calpoly.edu/star/337

 

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