Connectivity in a Red Sea Sponge across an Environmental Gradient

Handle URI:
http://hdl.handle.net/10754/324604
Title:
Connectivity in a Red Sea Sponge across an Environmental Gradient
Authors:
Giles, Emily C.
Abstract:
While geographic distance is a variable often used to explain population genetic differentiation, dynamic processes leading to stochastic population structure are more likely driving factors. The following thesis presents the population structure of a common reef sponge, Stylissa carteri, and yields hypotheses on the influence of environmental heterogeneity as a predictor of the observed population structure. This project represents the largest population genetics study thus conducted in the Red Sea and also includes the first population genetics data gathered for sites off the coast of Sudan and Soccotra. The study herein presented includes both a large scale (36 reef sites covering over 1000km of coastline) and small-scale (16 transects of 50m each) analysis of gene flow in a benthic dwelling organism. The variable effect of geography and environmental conditions on S. carteri population structure is assessed using a seascape genetics approach. Environmental factors from a nine-year dataset accessed from the NASA Giovanni website including chlorophyll a, sea surface temperature, dissolved and particulate organic matter for both the annual and winter temporal scale were considered.
Advisors:
Berumen, Michael L. ( 0000-0003-2463-2742 )
Committee Member:
Voolstra, Christian R. ( 0000-0003-4555-3795 ) ; Jones, Burton ( 0000-0002-9599-1593 )
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Program:
Marine Science
Issue Date:
Aug-2014
Type:
Thesis
Appears in Collections:
Marine Science Program; Theses; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.advisorBerumen, Michael L.en
dc.contributor.authorGiles, Emily C.en
dc.date.accessioned2014-08-11T07:49:02Z-
dc.date.available2014-08-11T07:49:02Z-
dc.date.issued2014-08en
dc.identifier.urihttp://hdl.handle.net/10754/324604en
dc.description.abstractWhile geographic distance is a variable often used to explain population genetic differentiation, dynamic processes leading to stochastic population structure are more likely driving factors. The following thesis presents the population structure of a common reef sponge, Stylissa carteri, and yields hypotheses on the influence of environmental heterogeneity as a predictor of the observed population structure. This project represents the largest population genetics study thus conducted in the Red Sea and also includes the first population genetics data gathered for sites off the coast of Sudan and Soccotra. The study herein presented includes both a large scale (36 reef sites covering over 1000km of coastline) and small-scale (16 transects of 50m each) analysis of gene flow in a benthic dwelling organism. The variable effect of geography and environmental conditions on S. carteri population structure is assessed using a seascape genetics approach. Environmental factors from a nine-year dataset accessed from the NASA Giovanni website including chlorophyll a, sea surface temperature, dissolved and particulate organic matter for both the annual and winter temporal scale were considered.en
dc.language.isoenen
dc.subjectPopulation Geneticsen
dc.subjectRed Seaen
dc.subjectConnectivityen
dc.subjectSpongeen
dc.subjectEnviromental Gradienten
dc.subjectStylissa Carterien
dc.titleConnectivity in a Red Sea Sponge across an Environmental Gradienten
dc.typeThesisen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberVoolstra, Christian R.en
dc.contributor.committeememberJones, Burtonen
thesis.degree.disciplineMarine Scienceen
thesis.degree.nameMaster of Scienceen
dc.person.id114279en
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