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Students
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Students are an important part of any active
research lab,
and I have been lucky enough to work with many graduate,
undergraduate, and high school students. You can read a
little
bit about them and
their projects below. |
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Current Students
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Kanvaly Bamba M.S. Student |
Kanvaly is
pursuing a
M.S. degree with me through the Department of Biology.
He is interested
in fossil mammals and is studying South American (caviomorph)
rodents. Specifically, he's looking at variation in
the dentition
of modern caviomorphs to better understand expected
variation in fossil
populations. He'll then apply those principles to the
study of extinct
middle to late Miocene species to clarify the taxonomy
of chinchillids
and caviids. |
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Nicholas Drew M.S. Student |
Nick is
pursuing a
M.S. degree with me through the Department of Biology.
He is interested in the endemic hoofed mammals
(ungulates) of South America and will be describing
some new specimens that we have collected through our
fieldwork
in Bolivia. He is focusing on two groups of typothere
notoungulates,
interatheriids and hegetotheriids. |
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Melissa Sameh Undergrad. |
Melissa started working with me on a SAGES
Capstone
project in the spring, and has continued her research
through this
semester. She's exploring the structure of Miocene
South
American mammal communities (i.e., seeing how the
species are
distributed among different body size classes,
dietary categories, etc.) and comparing them to modern
mammal
communities
from throughout the world. Our hypothesis is that they
will be
quite different, partly due to the unusual
Tertiary
predator
guild of South America. Her project was
presented
at 2010 Research
ShowCase and also was presented
at
the SVP annual meeting
in Pittsburgh. |
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Past Students
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Andrew Franco Undergrad. (2010-11) |
Andrew worked with me on a SAGES Capstone project that was an extension of the pilot project Kyle Niemi (below) undertook a couple years before. First, he increased the number of specimens and species in our study of rodent incisor morphology. This study was published in the Journal of Mammalogy in 2011. Andrew then worked on a pilot study applying the method to fossil rodents from the Santa Cruz Formation. We are in the process of writing this up for publication. |
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Diane Moon Undergrad. (2010-11) |
Diane worked with me on a SAGES Capstone project investigating mesowear in native South American ungulates. This is part of our NSF-funded project to better understand diet in these animals. She studied casts of specimens from the early Miocene (Santacrucian) locality of Santa Cruz, Argentina, and compared them to data from a variety of modern ungulates of known diet. These data will provide dietary information about these species, and will be combined with microwear data to test whether cheek tooth crown height is an accurate indicator of diet in species with hypselodont (ever-growing) cheek teeth. |
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Stephanie Sang High School (Summer 2010) |
Stephanie attends Solon High School and spent her summer helping me check and expand our database of Tertiary South American marsupicarnivores. This involved tracking down many publications and cross-referencing names with specimen numbers, localities, and formations. These data will be included in an analysis of South American carnivore taxonomic and morphologic diversity that we plan to submit for publication after presenting our initial results at the SVP annual meeting in Pittsburgh |
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Marie Brosovich High School (Summer 2010) |
Marie attends Hawken
School and worked with me this summer in
conjunction with her
school's STEMM science program. The goal of her project
was to
photograph, measure, describe, and identify the
litoptern remains
(teeth, postcranial bones, etc.) from the early
Miocene (Santacrucian)
fauna of Pampa
Castillo, Chile. We'd like to combine this
information with that
from other groups of endemic ungulates to provide a more
detailed
picture of the specimens collected from this fauna. |
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Jen Chick M.S. Student (2007-10) |
Jen was a
graduate student in
the Department
of
Biology. For her M.S. thesis (which she defended
in January
2009), she studied the rodents
of the middle
Miocene (Laventan)
Quebrada Honda Fauna of southern Bolivia. Her preliminary
research indicated four species were present in
the
collections made by Federico
Anaya and me in May 2007 (which are housed at the
UATF
in
Potosi, Bolivia). She subsequently integrated
information from collections
at the Florida
Museum of Natural History,
and has a manuscript in review that revises this
important rodent fauna. |
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Tatiana
Dolgushina Undergrad. (2009-10) |
Tatiana started working with me through a CWRU Evolutionary Biology Program summer internship, and then completed her SAGES Capstone project with me (which she presented at Research ShowCase). Her project involved quantifying the taxonomic and morphologic diversity of marsupial carnivores in South America during the Oligocene and Miocene epochs. We collaborated with a colleague to analyze these data, and presented a paper on the subject at the 2010 SVP annual meeting. |
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David Parker High School (Summer 2009) |
David attends Hawken
School and worked with me in conjunction with
his school's STEMM science program. His project involved
sorting,
identifying, and cataloging several hundred specimens
from the early
Miocene (Santacrucian)
fauna of Pampa
Castillo, Chile.
Once all this information has been integrated into our
database, it
will be used to investigate the relative abundances of
species and
higher level
groups, which can then be compared to values from other
localities of
the same age. |
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Kyle Niemi Undergrad. (Spring 2009) |
Kyle worked on a project examining the morphology of caviomorph rodent incisors to determine whether certain characteristics can be correlated with diet in modern species. He began by studying specimens in the zoology collections at the Cleveland Museum of Natural History, and then put together a data set suitable for a pilot study using specimens from the nearby Carnegie Museum of Natural History. We presented results at the 2009 SVP Annual meeting in Bristol and are working on the manuscript. |
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Leah
Anderson M.S. Student (2004-07) |
Leah joined the Evolutionary Biology track of the Department of Anatomy in the fall of 2004. The following summer she worked on a pilot study at the Field Museum examining the limbs and pectoral girdle of Protypotherium, an interatheriid notoungulate from the Santacrucian of Argentina; this later formed the basis for her thesis. We presented results of this study at the 2005 SVP annual meeting and the manuscript arising from an expanded version of this research was recently published in Paleontologia Electronica. |
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Thomas Sheppard Undergrad. (Spring 2007) |
Tom worked with me on a small project for a course he was taking, ANTH/BIOL 394, Seminar in Evolutionary Biology. His project involved using regressions of limb bone dimensions and body mass in modern caviomorph rodents to predict body masses of extinct rodents from the early Miocene Santa Cruz fauna of Argentina. These data will be very helpful for increasing the precision of an Ecological Diversity Analysis of Santa Cruz that Beth Townsend and I presented a few years ago. |
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Debbie Weinstein Undergrad. (Spring 2007) |
Debbie
undertook a
semester-long project describing mesowear (i.e.,
tooth cusp
wear)
in three notoungulates
from Salla, Bolivia. We then used similar data from
modern mammals to infer the diets of these species. The
preliminary
results
of
this
study were presented at the 2007 SVP Annual
Meeting in
Austin and the manuscript was
published
in PPP in 2008. Although mesowear has been studied
in many modern
ungulates, this is the first study involving
notoungulates. |
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Megan
Burns Undergrad. (Summer 2005) |
Megan
was
an
undergraduate
at
CWRU
and
worked
with
me
to
fulfill the
requirements for a SAGES
capstone
experience. Her project involved studying some of
the armadillo
material our
team
collected from the late
early
Miocene Chucal
Fauna of northern Chile. This material is from a
small
armadillo, close to the size of the modern pichi, and
may represent a
new species of Stenotatus;
the material is too fragmentary to permit certain
identification. |
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Susan
Grana Undergrad. (Summer 2005) |
Susan
was
an
undergraduate
at
Illinois
Wesleyan
University and worked with me
through SPUR
(Summer Program for Undergraduate Research), a program
funded by the Howard
Hughes Medical Institute. For her project,
she
studied some of the glyptodont
material our
team
collected from the late
early
Miocene Chucal
Fauna of northern Chile. Subsequent
analyses have determined it represents a new
species of primitive glyptodontid. |