Difference between revisions of "Roberta Engel"

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(Lab)
(Contact Info)
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===Contact Info===
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email: roberta.engel at uconn.edu <br/>
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lab phone: 486-6215
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===Office Hours===
 
===Office Hours===

Revision as of 20:27, 31 May 2009

Doctoral Student
Office: BioPharm 318

Voice: (860) 486-6215

Fax: (860) 486-6364

E-mail: roberta.engel@uconn.edu

Mailing address:


75 N. Eagleville Road, Unit 3043
Storrs, CT 06269-3043, U.S.A.






Office Hours

Pseudoscorpions

Pseudoscorpions, also known as Chelonethida or False Scorpions, are an understudied order of arachnids. While not well known, Aristotle made note of pseudoscorpions as did the luminaries Linnaeus and Hooke (Micrographia 1665), and today they star on YouTube. Pseudoscorpions are found throughout the world in a wide range of microhabitats including leaf litter, animal nests, under rocks (even in the intertidal zone), beneath bark, and among the pages of books. One reason many are unfamiliar with pseudoscorpions is their diminutive size, most measuring less than 5 mm. This ancient lineage, the fossil record dates to the Middle Devonian, comprises 25 families, 439 genera, and 3385 species.

Dissertation Research

granite outcrop in southwestern Australia

Synsphyronus (Arachnida: Pseudoscorpiones: Garypidae) is a genus of pseudoscorpions found throughout Australia, New Zealand and New Caledonia (Harvey 1987). Currently, there are 24 described species but the diversity is much greater (unpublished data). This group has been collected beneath bark, in leaf litter, and under rocks in mesic and xeric regions. Specifically, I am interested in the origin and diversification of lineages that are endemic to the granite outcrops in southwestern Australia. Only one species, Synsphyronus elegans, has been described from the outcrops, and until recently it was known only from its type locality.
My research objectives include:
• to assess the diversity of Synsphyronus on the granite outcrops of southwestern Australia
• to describe species discovered on the outcrops
• to infer phylogenetic relationships among the rock-restricted lineages in southwestern Australia
• to estimate a species level phylogeny

I have been fortunate to have had three field seasons since starting my dissertation. During my 2004 and 2006 field seasons, I visited over 100 outcrops in southwestern Australia, sampling from the ~70 populations discovered. My sampling suggests that the diversity of Synsphyronus in southwestern Australia is greater than previously recorded. I traveled across Australia to localities recorded for twelve of the 22 Australian species of Synsphyronus for my 2008 field season.

Pseudoscorpion Projects

I started a project this spring to collect, image, and database the local fauna with the help of Evelize Codero, class of ‘09. In addition, we imaged specimens collected by Dr. Raymond Pupedis, Senior Collections Manager, Division of Entomology, at the Yale Peabody Museum of Natural History. Two genera found in Connecticut are Chthonius and Microbisium. We would like to thank Dr. R. Pupedis for the specimen loan and Dr. J. O’Donnell for use of the microscope and Auto-Montage software in the UConn Biological Collections facility.

Fenton Findings 2009

BIRDS
Woodcock
Ruffed Grouse (4/16)
Chickadee
Gold Finch


INSECTS
Nepidae, water scorpion
Dysticidae
Hydrophilidae
Notonectidae
Corixidae
Gerridae
Trichoptera
Ephemeroptera

GASTROPODA