Difference between revisions of "Nicholas Tippery"

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<span style="font-size: large">Ph.D. Candidate</span><br>
<span style="font-size: large">Ph.D., 2010</span><br>
University of Connecticut <br>
University of Connecticut <br>
Department of Ecology and Evolutionary Biology <br>
Department of Ecology and Evolutionary Biology <br>
Major Advisor: [[Don Les | Donald Les]]<br>
'''Office:''' [[PBB]] 317 <br>
'''Office:''' [[PBB]] 311 <br>
'''Phone:''' 860-486-3937 <br>
'''Phone:''' 860-486-1811 <br>
'''Fax:''' 860-486-6364 <br>
'''Fax:''' 860-486-6364 <br>
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'''E-mail''' <br>
'''E-mail''' <br>
== Research Interests ==
[[Image:Npel-NY_weevil.jpg|thumb|right|''Nymphoides peltata'']]
My graduate research involves the aquatic and wetland plant family Menyanthaceae (Bercht. & J.Presl), in particular the systematics and taxonomy of species, and the evolution of floral reproductive systems. Species of Menyanthaceae are found worldwide, and are currently divided taxonomically among five genera. The reproductive systems of Menyanthaceae species are of particular interest, because the family contains both hermaphroditic and dioecious species, and many hermaphroditic species are also heterostylous. In addition, species in the genus ''Nymphoides'' Ség., while rooted in the substrate, have a floating-leaf habit reminiscent of many other, unrelated aquatic plant lineages.
The five genera of Menyanthaceae are ''Liparophyllum'' Hook.f., ''Menyanthes'' L., ''Nephrophyllidium'' Gilg (= ''Fauria'' Franch.), ''Nymphoides'' Ség, and ''Villarsia'' Vent. ''Menyanthes'' and ''Nephrophyllidium'' are found only in the northern hemisphere, ''Liparophyllum'' and ''Villarsia'' are restricted to the southern hemisphere, and ''Nymphoides'' has a worldwide distribution, with centers of diversity in Africa, Australia, India, and the Americas. ''Liparophyllum'', ''Menyanthes'', and ''Nephrophyllidium'' are monotypic (having only one species each), the genus ''Villarsia'' contains 17 species, and ''Nymphoides'' has about 40-50 species.
===Vegetative morphology===
Four genera of Menyanthaceae have an erect inflorescence and grow in wetland habitats. Nymphoides, the most speciose genus, consists mostly of floating-leaved plants, where the leaves serve to keep the flowers above the water surface. I am studying the mechanism through which the floating leaf and inflorescence apparatus arose from a wetland ancestor.
===Reproductive morphology===
In addition to their diversity in vegetative morphology, species of Menyanthaceae possess an array of reproductive systems, including hermaphroditism, gynodioecy, and dioecy. Heterostyly also occurs in all genera but ''Liparophyllum'', with the majority of species in ''Nymphoides'' and ''Villarsia'' being heterostylous. Using a phylogenetic framework, I plan to infer the directionality of conversions to and from particular reproductive systems, and address the evolutionary forces promoting changes in floral morphology.
'''Ph.D.''' Ecology and Evolutionary Biology <br>
2003–Current <br>
University of Connecticut, Storrs, CT <br>
Major Advisor: [[Donald H. Les]] <br>
'''B.A.''' Biology / Classics <br>
1996–2000 <br>
[http://www.udallas.edu/ University of Dallas], Irving, TX <br> <br>
* '''Tippery, N. P.''' and D. H. Les. 2008. Phylogenetic analysis of the internal transcribed spacer (ITS) region in Menyanthaceae using predicted secondary structure. ''Molecular Phylogenetics and Evolution'' 49: 526-537.
* '''Tippery, N. P.''', D. H. Les, D. J. Padgett, and S. W. L. Jacobs. 2008. Generic circumscription in Menyanthaceae: a phylogenetic evaluation. ''Systematic Botany'' 33: 598-612.
* Les, D. H., S. W. L. Jacobs, '''N. P. Tippery''', L. Chen, M. L. Moody, and M. Wilstermann-Hildebrand. 2008. Systematics of ''Vallisneria'' (Hydrocharitaceae). ''Systematic Botany'' 33: 49-65.
* Les, D. H., R. S. Capers, and '''N. P. Tippery'''. 2006. Introduction of ''Glossostigma'' (Phrymaceae) to North America: a taxonomic and ecological overview. ''American Journal of Botany'' 93: 927-939.
* Hartman, J. L. IV and '''N. P. Tippery'''. 2004. Systematic quantification of gene interactions by phenotypic array analysis. ''Genome Biology'' 5: R49.
* '''Tippery, N. P.''', Les, D. H., Padgett, D. J., and S. W. L. Jacobs. 2008. Taxonomic revision of Villarsia (Menyanthaceae) in Australia: Molecular and morphological evidence. Botany 2008 Abstracts. Botanical Society of America.
* '''Tippery, N. P.''' and D. H. Les. 2007. Expanding the phylogenetic utility of the internal transcribed spacer (ITS) region using predicted secondary structure. Botany 2007 Abstracts. Botanical Society of America.
* '''Tippery, N. P.''', D. H. Les, D. J. Padgett, and S.W.L. Jacobs. 2006. Clades and grades: an evaluation of generic circumscriptions in Menyanthaceae Dumort. (Asterales). Botany 2006 Abstracts. Botanical Society of America.
==Teaching and Research Experience==
* Teaching Assistant, BIOL 1110 (formerly BIOL 110): Introduction to Botany. 2007-2008. University of Connecticut.
* Student Instructor, Summer Faculty Workshop in Biodiversity and Forensic Genetics. 2006. University of Connecticut.
* Research Assistant, Les Laboratory. 2005-2007. University of Connecticut.
* Teaching Assistant, BIOL 1108 (formerly BIOL 108): Introductory Biology Laboratory. 2003-2005; 2008. University of Connecticut.
==Positions Held==
* EEB [[GSA Treasurer]]. 2008-current.
* EEB [[GSA President]]. 2007-2008.
* EEB [[GSA Secretary]]. 2006-2007.
* EEB Botanical [[Collections Representative]]. 2005-2006.
[[Category:EEB People|Tippery]]
[[Category:EEB People|Tippery]]
[[Category:EEB Graduate Students|Tippery]]

Revision as of 12:31, 25 April 2011

Tippery Ireland2006.jpg

Ph.D., 2010
University of Connecticut
Department of Ecology and Evolutionary Biology
Major Advisor: Donald Les

Office: PBB 311

Phone: 860-486-1811
Fax: 860-486-6364

Mailing address
75 N. Eagleville Road, U-3043
Storrs, Connecticut 06269

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