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Evan Rehm

Evan Rehm

Assistant Professor


  • Contact

  • rehme@apsu.edu
  • 931-221-7778
  • Sundquist Science Complex Room SSC A127


Ph.D. Florida International University (Biology), 2015

M.S. SUNY College of Environmental Science and Forestry (Wildlife Management), 2006

B.S. Penn State University (Wildlife and Fisheries Science), 2003

I have been very fortunate to have lived all over the US and world pursuing my passion of biodiversity conservation and ecological research. I completed my undergraduate degree at Penn State University and my MS degree at the State University of New York at ESF. After finishing these degrees, I spent several years living and working abroad as an avian field technician including in South America, Australia, Southeast Asia, Puerto Rico and the Northern Mariana Islands. I returned to complete my PhD at Florida International University in Miami FL but split my time at my field sites outside of Cusco, Peru. My research focused on the upslope migration of Andean cloudforest in response to climate change. I then completed two post-doctoral research positions at Colorado State University and UC Santa Barbara but was based in the Pacific Island systems of the Northern Mariana Islands and Hawaii. In both systems I researched how invasive species (e.g. snakes, grasses) have negative impacts on native forest conservation and restoration. In Tennessee, I continue this work investigating how climate change and invasive species have negative impacts on local communities including eastern deciduous forest and southeastern grasslands.

  • Ecology

  • Principles of Biology 1

  • Principles of Biology 2

  • Biological Methods

  • Conservation Biology

  • Community Ecology

  • Global Change Biology

  • Conservation Biology

  • Forest Dynamics

  • Grassland restoration and conservation

  • Ciafré, C. , Gienger, C., Rehm, E., and Estes, D. Accepted. Deterministic and stochastic factors jointly drive wetland plant community composition and diversity across an environmental gradient. Wetlands

  • Yelenik, S., Rehm, E., and D’Antonio, C. 2022. Can the impact of canopy trees on soil and understory be altered using litter additions? Ecological Applications. 32(1):e02477. 10.1002/eap.2477

  • Rehm, E.M., Yelenik, S. and D’Antonio, C. 2021. Freezing temperatures restrict woody plant recruitment in abandoned montane pastures. Global Ecology and Conservation. 26: e01462, https://doi.org/10.1016/j.gecco.2021.e01462

  • Yelenik,S., D’Antonio, C., Rehm, E., and Caldwell, I. 2020. Multiple feedbacks due to biotic interactions across trophic levels can lead to persistent novel conditions that hinder restoration. In Plant Invasions: the role of biotic interactions. Eds. A. Traveset and D. Richardson. Pg 402-420

  • Rehm, E.M., Smith, M., Yelenik, S. and D’Antonio, C. 2020. Architecture of remnant trees plays an important role in seedling recruitment in an abandoned Hawaiian pasture. Plant Ecology. 222(6): 659-667 https://doi.org/10.1007/s11258-020-01072-7

  • Pollock, H., Fricke, E., Rehm, E., Kastner, M., Suckow, N., Savidge, J., and Rogers, H. 2020. Såli (Micronesian starling – Aplonis opaca) as a key seed dispersal agent across a tropical archipelago. Journal of Tropical Ecology. 36:56-64

  • Rehm, E.M., Thomas, M., Yelenik, S., Bouck, D., and D’Antonio, C. 2019. Bryophyte abundance, composition and importance to woody plant recruitment in natural and restoration forest. Forest Ecology and Management. 444:405-413

  • Rehm, E.M., Fricke, E., B. Bender, J., Savidge, J. and Rogers, H. 2019. Animal movement drives variation in seed dispersal distance in a plant-animal network. Proceedings of the Royal Society Series B. 286

  • Fricke, E., Bender, J., Rehm, E.M. and Rogers, H. 2019. Functional outcomes of mutualistic network interactions: a community-scale study of frugivore gut passage on germination. Journal of Ecology 107:757-767

  • Rehm, E.M., Balsat M., Lemoine, N. and Savidge, J. 2018. Spatial dynamics of habitat use informs reintroduction efforts in the presence of an invasive predator. Journal of Applied Ecology 55:1790-1798

  • Rehm, E.M., Chojnaki, J., Rogers, H. and Savidge, J. 2018. Differences in potential seed dispersal to degraded habitats by an avian frugivore community. Restoration Ecology 26:760-766

  • Beer, K., Rehm, E.M. and Savidge, J. 2016. First record of a passerine bird species, the Ashy Minivet (Pericrocotus divaricatus), for Saipan, Commonwealth of the Northern Mariana Islands. Micronesica 2016-2: 1-4

  • Rehm, E.M. and Feeley, K.J. 2016a. Seedling transplants reveal species-specific responses of high elevation tropical treeline trees to climate change. Oecologia 181:1233-1242

  • Rehm, E.M. and Feeley, K.J. 2016b. Many species risk mountain top extinction long before they reach the top? Frontiers of Biogeography. 8(1)

  • Rehm, E.M. and K.J. Feeley. 2015a. Freezing temperatures as a limit to forest recruitment above tropical Andean treelines. Ecology 96:1856-1865

  • Rehm, E.M. and K.J. Feeley. 2015b. The inability of tropical cloud forest species to invade grasslands above treeline during climate change: potential explanations and consequences. Ecography 38:1167-1175. Editor’s Choice.

  • Rehm, E.M., Olivas, P., Stroud, J., and K.J. Feeley. 2015. Losing your edge: climate change and the conservation value of range-edge populations. Ecology & Evolution 5: 4315-4326.

  • Feeley, K.J. and E.M. Rehm. 2015. The downward shift of montane grasslands exemplifies the dual threat of human disturbances to cloud forest biodiversity. Proceedings of the National Academy of Science. 112:E6084.

  • Rehm, E.M., Lenz, A., Hoch, G., and C. Körner. 2014. Spring patterns of freezing resistance and photosynthesis in Hedera helix. Basic and Applied Ecology 15: 543-550

  • Rehm, E.M. 2014. Rates of upslope shifts for tropical species depend on life history and dispersal mode. Proceedings of the National Academy of Science. 111:1676.

  • Stroud, J.T., Rehm, E.M., Ladd, M. Olivas, P., and K.J. Feeley. 2014. Are we spending our money wisely? Changing trends in conservation research priorities. Journal for Nature Conservation 22: 471-473.

  • Feeley, K.J, Rehm, E.M., and J. Stroud. 2014. There are many barriers to species’ migrations. Frontiers of Biogeography. 6:63-66

  • Feeley, K.J. and E.M. Rehm. 2014. Corridors are meant for connecting. Nature Climate Change 4: 405-406

  • Rehm, E.M. and K.J. Feeley. 2013. Forest patches and the upward migration of timberline in the tropical Andes. Forest Ecology and Management 305: 204-211.

  • Feeley, K.J. and E.M. Rehm. 2012 Amazon’s vulnerability to climate change heightened by deforestation and man-made dispersal barriers. Global Change Biology 18: 1335-1341. Recommended by the Faculty of 1000

  • Feeley, K.J., Rehm, E.M., and B. Machovina. 2012. The responses of tropical forest species to global climate change: acclimate, adapt, migrate, or go extinct? Frontiers of Biogeography 4(2): 69-84.

  • Rehm, E.M. and G. Bladassarre. 2007. Temporal variation in detection of marsh birds during broadcast of conspecific calls. Journal of Field Ornithology 78(1): 56-63.

  • Rehm, E.M. and G. Bladassarre. 2007. The influence of interspersion on marsh bird abundance in New York. The Wilson Journal of Ornithology 119(4): 648-654.