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The Biogeography of the Caribbean Land Snail Family Annulariidae

Skomrock, Nicholas David
http://rave.ohiolink.edu/etdc/view?acc_num=osu1417706937

Abstract Details

2014, Master of Science, Ohio State University, Evolution, Ecology and Organismal Biology.
The complex nature of historical Caribbean geology confounds the understanding of biogeographic information and the reconstruction of historical biogeographic patterns. Explanations of distributions of terrestrial organisms have included over-water disperal, land dispersal and vicariance, with two main explanations being the vicariance model of Rosen (1975) and the GAARlandia hypothesis of Iturralde-Vinent and MacPhee (1999). The land snail family Annulariidae, endemic to the Caribbean, has shown similar patterns to other organisms in the region and is used to help evaluate the relative role of over water dispersal, land dispersal and vicariance. A molecular phylogeny using regions of the nuclear ribosomal 28S, mitochondrial ribosomal 16S, and the mitochondrial protein coding gene COI was reconstructed and used to assess patterns of biogeography. Ancestral ranges were reconstructed using the program RASP with the BBM and S-diva algorithms. These analyses suggest a proto-Antillean origin of the fauna with subsequent over-water dispersals, relying heavily on land or over-water dispersals as a mechanism. Little evidence was found in support of the GAARlandia hypothesis, yet it cannot be completely removed as a potential explanation. Herein, we describe the historical biogeographic patterns of the present day Annulariidae.
Meg Daly (Advisor)
John Freudenstein (Committee Member)
G. Thomas Watters (Committee Member)
41 p.
Biology
Biogeography; Caribbean; Phylogenetics

Recommended Citations

Citations

  • Skomrock, N. D. (2014). The Biogeography of the Caribbean Land Snail Family Annulariidae [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417706937

    APA Style (7th edition)

  • Skomrock, Nicholas. The Biogeography of the Caribbean Land Snail Family Annulariidae. 2014. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1417706937.

    MLA Style (8th edition)

  • Skomrock, Nicholas. "The Biogeography of the Caribbean Land Snail Family Annulariidae." Master's thesis, Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417706937

    Chicago Manual of Style (17th edition)

osu1417706937
1,181
© 2014, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.