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050 4 a| QL505.6.F6b| J87 2003;

100 1 a| Justice, Teresa C.,e| author.?| UNAUTHORIZED;

245 10 a| Phylogeography of Arenivaga floridensis caudell (polyphagidae) in peninsular Florida /c| by Teresa C. Justice.;

264 0 c| 2003.;

300 a| vii, 77 leaves :b| illustrations, color maps ;c| 28 cm;

336 a| textb| txt2| rdacontent;

337 a| unmediatedb| n2| rdamedia;

338 a| volumeb| nc2| rdacarrier;

502 b| M.S.c| East Carolina Universityd| 2003;

500 a| Presented to the faculty of the Department of Biology.;

500 a| Advisor: Trip Lamb;

520 3 a| The Florida scrub and sandhills form a xeric upland habitat that is partitioned across a series of isolated ridges. These ridges arose as coastal dunes, have experienced periods of isolation as islands and intra-ridge fragmentation during the Plio-Pleistocene, and are associated with high levels of endemism. The Florida sand cockroach {Arenivaga floridensis) is one such endemic previously known only from the peninsula's central and western ridges. I examined the evolutionary history of the Florida sand cockroach on these ridges, reconstructing phylogenetic relationships among populations throughout the peninsula. One hundred twenty-nine roaches were collected from 34 locations representing six ridges. As a result of this collecting effort, the known range of Arenivaga floridensis was expanded to include the Atlantic Coastal and Orlando ridges. Sixty-four mitochondrial haplotypes derived from a 653 bp segment of cytochrome oxidase II revealed levels of sequence divergence up to 8% across ridges. Neighbor-joining, maximum parsimony, and Bayesian analyses revealed three major phylogroups: the Southern Brooksville, Lake Wales, and North/Atlantic Coastal clades. Divergence levels observed between clades indicates separation since the early Pleistocene and corresponds to the peninsula's geologic and paleoclimate history. The phylogeographic structure also corresponds well with results from phylogeographic analyses of vertebrate ridge endemics. Colonization of the Atlantic Coastal Ridge (a relatively young ridge) appears to have occurred through dispersal from the Mt. Dora Ridge, an older central ridge. Significant within ridge structuring was observed on the Lake Wales Ridge, and population divergence at the southern end of this ridge corresponded to a break previously reported in the Florida scrub lizard {Sceloporus woodi) and sand skink {Neoseps reynoldsi). The significant genetic diversity observed for Arenivaga floridensis, both within and across Florida's ridges, carries important conservation implications. Human development on the ridges is dramatically reducing scrub habitat and may well impact genetic diversity within this species. The phylogeographic structuring observed in Arenivaga should be considered in future conservation efforts.;

504 a| Includes bibliographical references (leaves 37-42).;

655 7 a| dissertations.2| aat0| (CStmoGRI)aatgf300028029;

655 7 a| Academic theses.2| fast0| (OCoLC)fst01726453;

655 7 a| Academic theses.2| lcgft;

655 7 a| Thèses et écrits académiques.2| rvmgf0| (CaQQLa)RVMGF-000001173;

700 1 a| Lamb, Trip,e| degree supervisor.=| ^A1277551;

710 2 a| East Carolina University.b| Department of Biology.=| ^A637467;

856 41 z| Access via ScholarShipu| http://hdl.handle.net/10342/12533;

949 a| Click on web addressw| asish| joyner101;

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999 a| ASK AT SPECIAL COLLECTIONS DESKw| ASISc| 1i| MQ1723600l| JSCJTHDm| JOYNERr| Ys| Yt| JSCJTHDu| 10/14/2004x| ETDz| JSPECCOLLo| .STAFF. 0;

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Phylogeography of Arenivaga floridensis caudell (polyphagidae) in peninsular Florida / by Teresa C. Justice.

Author/creator	Justice, Teresa C. author.
Other author	Lamb, Trip, degree supervisor.
Other author	East Carolina University. Department of Biology.
Format	Theses and dissertations
Production	2003.
Description	vii, 77 leaves : illustrations, color maps ; 28 cm
Supplemental Content	Access via ScholarShip
Subjects	Cockroaches--Florida. --Classification. --Molecular aspects.

Summary	The Florida scrub and sandhills form a xeric upland habitat that is partitioned across a series of isolated ridges. These ridges arose as coastal dunes, have experienced periods of isolation as islands and intra-ridge fragmentation during the Plio-Pleistocene, and are associated with high levels of endemism. The Florida sand cockroach {Arenivaga floridensis) is one such endemic previously known only from the peninsula's central and western ridges. I examined the evolutionary history of the Florida sand cockroach on these ridges, reconstructing phylogenetic relationships among populations throughout the peninsula. One hundred twenty-nine roaches were collected from 34 locations representing six ridges. As a result of this collecting effort, the known range of Arenivaga floridensis was expanded to include the Atlantic Coastal and Orlando ridges. Sixty-four mitochondrial haplotypes derived from a 653 bp segment of cytochrome oxidase II revealed levels of sequence divergence up to 8% across ridges. Neighbor-joining, maximum parsimony, and Bayesian analyses revealed three major phylogroups: the Southern Brooksville, Lake Wales, and North/Atlantic Coastal clades. Divergence levels observed between clades indicates separation since the early Pleistocene and corresponds to the peninsula's geologic and paleoclimate history. The phylogeographic structure also corresponds well with results from phylogeographic analyses of vertebrate ridge endemics. Colonization of the Atlantic Coastal Ridge (a relatively young ridge) appears to have occurred through dispersal from the Mt. Dora Ridge, an older central ridge. Significant within ridge structuring was observed on the Lake Wales Ridge, and population divergence at the southern end of this ridge corresponded to a break previously reported in the Florida scrub lizard {Sceloporus woodi) and sand skink {Neoseps reynoldsi). The significant genetic diversity observed for Arenivaga floridensis, both within and across Florida's ridges, carries important conservation implications. Human development on the ridges is dramatically reducing scrub habitat and may well impact genetic diversity within this species. The phylogeographic structuring observed in Arenivaga should be considered in future conservation efforts.
General note	Presented to the faculty of the Department of Biology.
General note	Advisor: Trip Lamb
Dissertation note	M.S. East Carolina University 2003
Bibliography note	Includes bibliographical references (leaves 37-42).
Genre/form	dissertations.
Genre/form	Academic theses.
Genre/form	Academic theses.
Genre/form	Thèses et écrits académiques.

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Phylogeography of Arenivaga floridensis caudell (polyphagidae) in peninsular Florida / by Teresa C. Justice.

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