
I am the Coburn Professor of Environmental Science at John Carroll University in Cleveland, USA. I am always interested in hearing from undergraduates enrolled at JCU or students interested in coming to JCU for their masters degree. If you are a student who wants to join the lab, please send me an email describing your academic background, work experience, and research interests to jwatling [at] jcu.edu.
In our lab, we use observational, experimental, and geospatial modeling approaches to understand how drivers of global change such as landscape modification and climate change impact species and the landscapes in which they occur. My students and I do fieldwork in the United States and South America, working with a network of graduate students and undergraduate collaborators, technicians, and researchers from the federal government. Click on the links below for more information about current research projects, courses, and more, and check out this video about recent work in the lab
Download my CV.
PhD in Biological Sciences, 2005
Florida International University
MS in Biological Sciences, 2000
Florida International University
BA in Environmental Science, 1996
Boston University
A few recent publications based on my research are highlighted in the next section (Featured Publications), followed by links to all my papers.
Research in the lab generally falls into one of two broad categories:
Research based on field, lab, and modeling work
Research based on meta-analysis and literature synthesis

In this paper we synthesize the landscape ecology literature to propose key characteristics of multifunctional landscapes that provide production value while maintaining biodiversity

Our meta-analysis revealed that protected areas always slow vertebrate population declines compared to populations in unprotected locations, and in some cases even reverse those declines, though the positive impacts of protected areas depend strongly on good governance.

This paper emerged from a class project, led by graduate student Catalina Valderrama Robles and Environmental Science undergrad Molly Russell. We found that salamanders exposed (acclimated) to high temperatures for two days had the same ability to tolerate high temperatures as salamanders experiencing high temperatures for a whole month, suggesting that different degrees of acclimation had little effect on thermal tolerance in this species.

This field project, led by MS student Andrew Veselka, found that amphibians and reptiles with low tolerance to high temperatures were found further from forest edges in a Colombian rainforest than species able to tolerate higher temperatures. Andrew’s work provides further evidence that the interaction between species traits and variation in the thermal landscape is a key determinant of species distributions.
2026 Valderrama Robles SC, Russell MG, Anthony CD & Watling JI. Effect of temperature acclimation period on upper thermal tolerance in a terrestrial salamander. PeerJ 14:e20775. 2025 Saboyá Acosta LP, Watling JI & Urbina-Cardona JN.
2019 Betts MG et al. Extinction filters mediate the global effects of habitat fragmentation for animals.Science 366: 1236–1239. Cameron AC, Page RB, Watling JI, Hickerson C-AH & Anthony CD. Using a comparative approach to investigate the relationship between landscape and genetic connectivity among woodland salamander populations.
2009 Watling JI, Gerow K & Donnelly MA. Isolation and nested species subsets of amphibians and reptiles on Neotropical forest islands. Animal Conservation 12: 467—476. 2008 Watling JI & Donnelly MA.
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