Profile photo of Dr. Johanna Delgado-Acevedo

Dr. Johanna Delgado-Acevedo

Assistant Professor

Department of Biological and Environmental Science

Office Location: STC 262

Phone: 903-468-3333


Ph.D. Texas A&M University-Kingsville, Texas, USA, 2006-2010. Wildlife Sciences

Feral pig management in Texas: A landscape genetics approach

     The invasive feral pig represents a threat to the sustainability of multiple agriculture products due to damage and disease risk. Population reduction (trapping or shooting) is the best current alternative for controlling feral pig damage, but it is inefficient because feral pigs from neighboring areas quickly re-colonize managed areas. We used a panel of genetic markers to investigate feral pig population structure with the ultimate goal of increasing the effectiveness of feral pig management strategies within the agroecosystems of southern Texas. The analyses revealed that large expanses of homogeneous habitat promote dispersal and movements and would require spatially extensive control efforts to manage feral pigs. We used advanced techniques of landscape ecology, and conservation planning. In addition, we applied advanced spatial analyses and statistical programs to develop decision tools for impact assessment and conservation planning for south Texas.

M.S. University of Puerto Rico, Río Piedras, Puerto Rico, 2005. Topical Biology

The effect of habitat loss on morphology in two Eleutherodactylus species of Puerto Rico

Amphibian populations have been declining worldwide and the exact mechanisms underlying these changes are not well understood. We examined environmentally induced phenotypic changes that may reflect ongoing stresses on individuals and therefore their ability to persist in increasingly changing landscapes. Specifically, we evaluated the contribution of habitat loss on the size, allometry, and levels of fluctuating asymmetry of Eleutherodactylus antillensis and E. coqui, 2 common species that are endemic to Puerto Rico. Analyses suggested an effect of habitat loss on body shape. Because body size scales with a variety of physiological, life history, and ecological traits, conservation programs aimed at monitoring morphological changes in amphibians may help in understanding the mechanisms that contribute to their persistence in changing environments.

B.S. University of Puerto Rico, Cayey, Puerto Rico, 1999. Biology

Undergraduate research through the Howard Hughes Research Program. Semester and summer rotations in the areas of Organic chemistry, Microbiology. Microbial Ecology, and Ecology. Minority Biomedical Research Support for senior year in the area of Biochemistry, University of Puerto Rico-Medical Sciences campus.

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