Dr. Sally Entrekin


Dr. Entrekin’s research program at Virginia Tech focuses on macroinvertebrate population and community ecology and ecosystem function. Her research group’s aim is to leverage what the biological communities and their associated functions reveal about aquatic ecosystem change to identify solutions towards sustainable water quality and quantity. Her group uses the coupled integration of macroinvertebrate communities and ecosystem dynamics at the land-water interface to understand how people impact freshwater quality, quantity, and community structure and function.  Dr. Entrekin’s current research program addresses global change by working across disciplines that engage students and the public in water quality and quantity issues typically from development for urban centers, agriculture, and resource extraction.


Dr. Entrekin’s current research focuses on how watershed fragmentation, over-consumption of freshwater and contamination from agriculture, urbanization, and resource extraction interact to alter community structure and ecosystem functions in streams and wetlands. Because freshwater ecosystems support aquatic invertebrate species vulnerable to environmental alterations that sustain food webs, her research is of broad interest to managers and the public. As an Associate Professor in the Entomology Department at Virginia Tech, she publishes on macroinvertebrate-environmental interactions, freshwater quantity and quality, and ecosystem ecology.

Dr. Entrekin also serves as the Secretary for the Society for Freshwater Science and is the co-associate editor for the journal Freshwater Science, Bridges, that integrates science and decision-making. At Virginia Tech, Dr. Entrekin teaches the cross-listed courses Aquatic Entomology and Freshwater Biomonitoring.


Lab Website

Recent Relevant Publications

* student authors

Entrekin, S A., E J. Rosi, J. L. Tank, T. J. Hoellein, and G. A. Lamberti. 2020. Quantitative Food Webs Indicate Modest Increases in the Transfer of Allochthonous and Autochthonous C to Macroinvertebrates Following a Large Wood Addition to a Temperate Headwater Stream. Frontiers in Ecology and Evolution 8 (2020): 114.

Smartt* A., Evans-White M., Halvorson* H.M., Entrekin, S.A., Scott, J.T. In-revision. Leaf-litter
phosphatase activity, respiration, stoichiometry, and decomposition as phosphorus enrichment
endpoints: a laboratory experiment. Freshwater Science.

Bates, A.L., Walker R.H., Alford A., and Entrekin, S.A. In review. Hydrology mediates biological control of leaf decomposition in streams. Freshwater Science.

Stepanian, P.M., Entrekin S.A., Wainwright C.E., Mirkovic D., Tank J.L. and Kelly J.F. 2020. Declines in an abundant aquatic insect, the burrowing mayfly, across major North American waterways. Proceedings of the National Academy of Science.

Halvorson*, H.M., Fuller*, C.L., Entrekin, S.A., Scott, J.T. and Evans-White, M.A., 2019. Interspecific
homeostatic regulation and growth across aquatic invertebrate detritivores: a test of ecological
stoichiometry theory. Oecologia, 190(1), pp.229-242.

Tiegs, S.D., Costello, D.M., Isken, M.W., Woodward, G., McIntyre, P.B., Gessner, M.O., Chauvet, E.,
Griffiths, N.A., Flecker, A.S., Acuña, V. and Albariño, R., 2019. Global patterns and drivers of ecosystem
functioning in rivers and riparian zones. Science Advances, 5(1), p.eaav0486.

Entrekin, Sally A., Natalie A. Clay, Anastasia Mogilevski*, Brooke Howard-Parker*, and Michelle A. Evans-White. 2018. Multiple riparian–stream connections are predicted to change in response to salinization. Philosophical Transactions of the Royal Society B 374, no. 1764 (2018): 20180042.

Halvorson, H.M.*, Fuller*, C.L., Entrekin, S.A., Scott, J.T. and Evans‐White, M.A., 2018. Detrital nutrient content and leaf species differentially affect growth and nutritional regulation of detritivores. Oikos.

Baker, L.*, Evans-White, M.A. and Entrekin, S., 2018. Basin risk explains patterns of macroinvertebrate community differences across small streams in the Fayetteville Shale, AR. Ecological Indicators91, pp.478-489.

Entrekin, S., Trainor, A., Saiers, J., Patterson, L., Maloney, K., Fargione, J., Kiesecker, J., Baruch-Mordo, S., Konschnik, K., Wiseman, H. and Nicot, J.P., 2018. Water stress from high-volume hydraulic fracturing potentially threatens aquatic biodiversity and ecosystem services in Arkansas, United States. Environmental Science & Technology52(4), pp.2349-2358

Craig, L.S., Olden, J.D., Arthington, A.H., Entrekin, S., Hawkins, C.P., Kelly, J.J., Kennedy, T.A., Maitland, B.M., Rosi, E.J., Roy, A.H. and Strayer, D.L., 2017. Meeting the challenge of interacting threats in freshwater ecosystems: A call to scientists and managers. Elem Sci Anth5.