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Tag N. Engstrom
Dept of Biological Sciences
California State University,
Chico
Chico CA, 95929-0515
530-898-6748 (office)
530-898-5060 (fax)
___________________________________________________________
Teaching
Fall
2008:
Comparative Vertebrate Anatomy
BIOL 430
Population Ecology BIOL 613
Office Hours: Mon 1-2 Tues
1-2:30 Wed 1-2:30 Thurs 1-2
Research:
My
general research interests are in the systematics, ecology and
conservation of
amphibians and reptiles, particularly turtles. I
currently have active research projects or supervise
masters students with active research in:
-
Conservation
ecology of Western Pond Turtles
-
Conservation
genetics of Giant Garter Snakes
-
Conservation
genetics of marine turtles
-
Conservation
and invasive species issues in Hawaii
-
Systematics
of softshell turtles
-
Eco-morphology
of garter snakes
-
Sexual
selection and asymmetry in fence lizards
Publications
Tibisay
Escalona,
Tag N. Engstrom, Hernandez
OE, Brian C.
Bock, Richard C. Vogt and Nicole Valenzuela. In
press. Population
genetics of the endangered South American freshwater turtle,
Podocnemis unifilis, inferred from microsatellite DNA
data. Conservation Genetics. In
press
Tag
N. Engstrom, Taylor Edwards,
Matt Ostentowski, Erin Meyers.
2007. A compendium of PCR primers for mtDNA, microsatellite and other
nuclear
markers for freshwater turtles and tortoises. Chelonian Research
Monographs
4:124-141. pdf
John J. Wiens, Tag. N. Engstrom, and Paul T. Chippindale. 2006. Rapid diversification, incomplete isolation, and the "speciation clock" in North American salamanders (Genus Plethodon): Testing the hybrid swarm hypothesis of rapid radiation. Evolution, 60(12): 2585–2603. pdf
Tag
N.
Engstrom, H. Bradley Shaffer,
&
William P. McCord. 2004. Multiple datasets, high homoplasy and the
phylogeny of
softshell turtles. Systematic
Biology 53(5):693-710. pdf
Mathew
K Fujita, Tag
N. Engstrom, David E. Starkey,
H. Bradley
Shaffer. 2004. Turtle phylogeny:
insights from a novel nuclear intron.
Molecular Phylogenetics and Evolution 31:1031-1040. pdf
Kagima, B. W., N. Valenzuela, T. Engstrom, B. Bock. 2003. Preliminary population genetic study of the yellow spotted Amazon river turtle (Podocnemis unifilis) using microsatellite DNA data. Integrative and Comparative Biology 43: 1025-1025
Tag
N. Engstrom & William P.
McCord. 2002. Molecular support
for the taxonomic conclusions of McCord and Pritchard (2002) regarding Chitra.
Hamadryad 27(1):57-61. pdf
Tag N. Engstrom, Peter A. Meylan & Anne B. Meylan. 2002 Origin of Juvenile loggerhead turtles (Caretta caretta) in developmental habitat in Caribbean Panama. Animal Conservation. 5(2):125-133. pdf
Tag N. Engstrom,
H. Bradley Shaffer, & William P. McCord. 2002.
Phylogenetic diversity of endangered and critically
endangered southeast Asian softshell turtles (Trionychidae: Chitra).
Biological
Conservation. 104:173–179. pdf
Current Masters Students
Eric Hansen –
Eric is a biological consultant working on distribution and
conservation
ecology of Giant Garter Snakes in the Sacramento Valley.
Akiko Masuda – Akiko is using genetic markers
to trace origins of loggerhead
marine turtles when she is not playing mommy to her 95 percentile in
height and
weight daughter.
Jackson Shedd – Jackson is studying sexual
selection and asymmetry in
western fence lizards and is also the author/illustrator of a field
guide to
the Amphibians and Reptiles of Bidwell Park.
Heyo Tjarks – Heyo is working on
ecomorphology and sexual dimorphism in garter
snakes using geometric morphometrics.
He also sometimes jumps out of airplanes.
Past Masters Students
David Kelly – Dave studied demographics,
reproductive biology, population
genetics and morphology of western pond turtles in the Central Valley
and
Foothills and is now works for the USFWS in Sacramento.
Julie Nelson –
Julie studied the interactions of garter snakes, Yosemite toads and
pacific
chorus frogs in grazed and ungrazed meadows in the Sierra Nevada. She is now working on a sea turtle
nesting beach in Costa Rica.
Eric Olson –
Eric did a
herp inventory of the new
Sutter Buttes State Park and is now working as a biological consultant
for
Condor Country Consultants.
Past Undergrad Students
Rachel Bender – Rachel worked with Dave on the
WPT project and on her own project looking
at co-evolution of garter snakes and the toxic newts that some species
prey
upon.
Kyle Kappenman – Kyle was a key element of Team
Pond Turtle and is interested in
all things herpetological