Hsiang Ling Chen receives Outstanding Dissertation Award

We are delighted to announce that Dr. Hsiang Ling Chen, a very recent KCRL alum, was awarded the University of Arizona School of Natural Resources and the Environment’s Outstanding Dissertation Award at the department’s annual awards ceremony last week.  Hsiang Ling’s dissertation, “Barrier effects of roads and traffic on animal occurrence, space use, and movement” investigates the impact of fragmentation and traffic noise via an assessment of gap and road crossing through the use of the red squirrel (Tamiasciurus hudsonicus) as a model organism. The SNRE Outstanding Dissertation Award is given to doctoral students who have excelled in all phases of their degree program. This award recognizes both the student’s achievement and the advisor’s contribution.  Hsiang Ling has already begun her Post Doc in China so was not able to personally accept the award, but Dr. K was able to receive the award in her absence and we created a very memorable keepsake to remind her of this special event ;)  Way to go Dr. Chen and Dr. K!

Hsiang Ling Chen is always with us!

Hsiang Ling Chen is always with us!


KCRL Master’s student Kirsten Fulgham successfully defends her thesis!

Congratulations to KCRL’s Kirsten Fulgham who successfully defended her MS in Natural Sciences thesis yesterday! This program is designed for teachers to obtain a research MS degree while working a full-time teaching position! Already overworked and underpaid, teachers in the program get to work even harder:) Truly inspirational. Her thesis is titled: KANGAROO RAT FORAGING IN PROXIMITY TO A COLONY OF REINTRODUCED BLACK-TAILED PRAIRIE DOGS and examines the interaction of two potential keystone species. It was a great presentation and we all learned a lot!  Read a bit more about her work at:



KCRL welcomes visiting scholar Calebe Pereira Mendes

The KCRL is very pleased to welcome Calebe Pereira Mendes from Universidade Estadual Paulista, São Paulo, Brazil.  Calebe is a PhD student interested in understanding how environmental factors moderate the behavioral ecology of mammals and how animal movements affect plant-animal interactions.  As part of his PhD program, Calebe is required to complete research for one of his dissertation chapters abroad.  We are delighted that he chose to do his research with us at the University of Arizona! Here’s to many new adventures Calebe and welcome aboard!


Calebe sees snow for the first time on Mt. Graham!

KCRL graduate students take 1st and 2nd place in poster competition!

KCRL PhD candidate Sarah Hale and Master’s student Allyssa Kilanowski took first and second place, respectively in the 2015 School of Natural Resources and the Environment Earth Week poster competition.

Sarah’s poster:

“Can a Small Native Grazer Manage Woody Encroachment after Reestablishment?”  Sarah L. Hale, John L., Koprowski, and Steven R. Archer

Allyssa’s poster:

“Reversed sexual dimorphism, behavioral phenotypes, and female reproductive success: What can we learn from a fossorial, forest obligate in a fragmented landscape?”
Allyssa L. Kilanowski and John L. Koprowski

Congrats and way to represent!  Go team Kowpow!

Sarah Hale

Sarah Hale

Allyssa Kilanowski

Allyssa Kilanowski

KCRL doctoral student Sarah Hale receives travel grant from the American Society of Mammalogists

Congratulations to KCRL doctoral candidate, Sarah Hale, on receipt of a competitive travel grant from the American Society of Mammalogists! Sarah will travel to Jacksonville, Florida this June to present her work in a talk entitled “The potential role of a native grazer and keystone species in managing woody encroachment” that represents a portion of her dissertation work on the impacts of reintroduced black-tailed prairie dogs on grassland ecosystems.  Learn more about Sarah at: https://snre.arizona.edu/people/sarah-hale and her research at: http://ag.arizona.edu/research/redsquirrel/students/shale.html

Hale, Sarah

New publication on isotope derived wolf diets in PLoS ONE

A new paper from the KCRL.

Experimentally Derived δ13C and δ15N Discrimination Factors for Gray Wolves and the Impact of Prior Information in Bayesian Mixing Models


Derbridge, J. J., Merkle, J. A., Bucci, M. E., Callahan, P., Koprowski, J. L., Polfus, J. L., & Krausman, P. R. (2015). Experimentally Derived δ 13 C and δ 15 N Discrimination Factors for Gray Wolves and the Impact of Prior Information in Bayesian Mixing Models. PloS one, 10(3), e0119940.

A team of researchers at several institutions led by the KCRL’s Jonathan Derbridge and including John Koprowski detail the importance of using prior information and species-specific data to most accurately and precisely understand diet using isotopic methods.  Stable isotope analysis of diet has become a common tool in conservation research. However, the multiple sources of uncertainty inherent in this analysis framework involve consequences that have not been thoroughly addressed. Our study demonstrates the critical effect of prior information on estimates of animal diets using Bayesian SIMMs, and suggests species-specific trophic discrimination factors are of secondary importance. When using stable isotope analysis to inform conservation decisions researchers should understand the limits of their data.

Read the article at: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0119940

KCRL is proud to present Dr. Hsiang Ling Chen!

KCRL is delighted to announce that Hsiang Ling Chen has successfully defended her dissertation: “Barrier Effects of roads and traffic on animal occurrence, space use, and movement”.  Please help us congratulate Dr. Chen on all of her accomplishments and wish her luck as she transitions to her post-doctoral research position at San Diego State University.  Way to go DR. CHEN!!!!!!!!!!!!!!!!!!!!!!!!!