Josh Ennen, Ph.D
Aquatic Conservation Biologist
Publications
2021
60. Karim, S., J. Anderson, D. Kumar, S. Adamson, J.R. Ennen, C.P. Qualls, and J.M.C. Ribeiro. 2021. The sialotranscriptome of the gopher-tortoise tick (Amblyomma tuberculatum). Ticks and Tick-Borne Diseases 12:101560 (Link)
2020
59. Ennen, J.R., K.K. Cecala, P. Gould, R. Colvin, J. Denison, D.F. Garig, S. Hyder, L. Recker, and J.M. Davenport. Accepted. Size matters: the influence of trap and mesh size on turtle captures. Wildlife Society Bulletin.
58. Ennen, J.R., B.R. Kuhajda, S. Fix, S.C. Sweat, B. Zuber, A.V. Watts, H.T. Mattingly, and K.K. Cecala. In press. Assessing the success of conservation efforts for a North American topminnow at risk of extinction from spatially variable mosquitofish invasions. Freshwater Biology
57. Kirsch, D. R., S. Fix, J.M. Davenport, K.K. Cecala, and J.R. Ennen. Accepted. Body size is related to temperature preference in Hyla chrysoscelis tadpoles. Journal of Herpetology.
56. Lovich, J.E., T. Edwards,K.H. Berry,S.R. Puffer, K.L. Cummings, J.R. Ennen, M. Agha, R. Woodard, K.D. Brundige, and R.W. Murphy. 2020 Refining genetic boundaries for Agassiz’s desert tortoise (Gopherus agassizii) in the western Sonoran Desert: the influence of the Coachella Valley on gene flow among populations in southern California. Frontiers of Biogeography 12.3: e46888 (Link)
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55. Cecala, K.K., E.H. Walker, J.R. Ennen, S.M. Fix, J.M. Davenport. 2020. Seasonal variation in the strength of interference competition among headwater stream predators. Freshwater Biology 64: 1440-1449 (Link)
54. Stanford, C.B., J.B. Iverson, A.G.J. Rhodin, P.P. van Dijk, R.A. Mittermeier, G. Kuchling, K.H. Berry, A. Bertolero, T.E.G. Blanck, K.A. Bjorndal, K.A. Buhlmann, R. Burke, J. Congdon, T. Diagne, T. Edwards, C. Eisemberg, J. Ennen, G. Forero-Medina, M. Frankel, U. Fritz, N. Gallego-Garcia, A. Georges, J.W. Gibbons, S. Gong, E.V. Goode, H.T. Shi, H. Hoang, M.D. Hofmeyr, B.D. Horne, R. Hudson, J. Juvik, P. Koval, R. Kiester, M. Le, P. Lindeman, J.E. Lovich, L. Luiselli, T. McCormack, G. Meyer, V.P. Paez, K. Platt, S.G. Platt, P.C.H. Pritchard, H. Quinn, W. Roosenburg, J. Seminoff, H.B. Shaffer, R. Spencer, J.U. Van Dyke, R.C. Vogt, and A.D. Walde. 2020. Turtles and tortoises are in trouble. Current Biology 30:R721-R735 (Link)
53. Garig II, D.F., J.R. Ennen, and J.M. Davenport. 2020. The effects of common snapping turtles on a freshwater food web. Copeia 108(1):132-139 (Link)
52. Agha, M., J.E. Lovich, J.R. Ennen, and B.D. Todd. 2020. Wind, sun and wildlife: do wind and solar energy development “short-circuit” conservation in the western United States? Environmental Research Letters 15: 075004. (Link)
51. Ennen, J.R., M. Agha, S.C. Sweat, W.A., J.E. Lovich, A.G.J. Rhodin, J.B. Iverson, and C.W. Hoagstrom. 2020. Turtle biogeography: global regionalization and conservation priorities. Biological Conservation 241: 108323 (Link)
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2019
50. Ennen, J.R., M.L. Hoffacker, W. Selman, C. Murray, J. Godwin, R. A. Brown, and M. Agha. (2019). The importance of environmental conditions on body size and shape morphology of a freshwater vertebrate. Copeia 107:550-559 (Link)
2018
49. Lovich, J.E., M. Agha, J.R. Ennen, T.R. Arundel, and M. Austin. (2018). Agassiz’s desert tortoise (Gopherus agassizii) activity areas are little-changed after wind turbine-induced fires in California. International Journal of Wildland Fire 27:851-856.​ (Link)
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48. Rhodin, A.G.J., C.B. Stanford, P.P. van Dijk,…J.R. Ennen…R.C. Vogt. (2018). Global conservation status of turtles and tortoises (Order Testudines). Chelonian Conservation and Biology 17:135-161.​ (Link)
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47. Lovich, J.E., J.R. Ennen, M. Agha, and J.W. Gibbons. (2018) Where have all the turtles gone, and why does it matter? BioScience 68:771-781. (Link)
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46. Hoffacker, M.L., K.K. Cecala, J.R. Ennen, S. Mitchell, and J.M. Davenport. 2018. Elevated stream temperatures alter interspecific interactions in an Appalachian stream salamander community. Oecologia 188:623-631. (Link)
45. Lovich, J.E., S.R. Puffer, M. Agha, J.R. Ennen, K. Meyer-Wilkins, L.A. Tennant, A.L. Smith, and M.S. Vamstad. 2018. Reproductive output and clutch phenology of female Agassiz’s Desert Tortoises (Gopherus agassizii) in the Sonoran Desert Region of Joshua Tree National Park. Current Herpetology 37:1–18. (Link)
44. Agha, M., J.R. Ennen, D.S. Bower, J. Nowakowski, S.C. Sweat, and B.D. Todd. 2018. A global review of freshwater turtles in brackish water ecosystems. Biological Reviews 93:1634-1648. (Link)
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43. Aburto-Oropeza, O., A.F. Johnson, M. Agha, E.B. Allen, M.F. Allen, J.A. González, D.M.A. Moreno, R. Beas-Luna, S. Butterfield, G. Caetano, J.E. Caselle, G.C. Gaytán, M.C.N. Castorani, L.A. Cat, K. Cavanaugh, J.Q. Chambers, R.D. Cooper, N.A. Dalmau, T. Dawson, A.D. de la Vega Pérez, J.F.C. DiMento, S.D. Guerrero, M. Edwards, J.R. Ennen et al. 2018. Harnessing cross-border resources to confront climate change. Environmental Science and Policy 87:128-132.(Link)
42. Agha, M., J.R. Ennen, J. Nowakowski, J.E. Lovich, S.C. Sweat, and B.D. Todd. 2018. Macroecological patterns of sexual size dimorphism in turtles of the world. Journal of Evolutionary Biology 31:336-345. (Link)
2017
41. Gaillard, D., J.R. Ennen, B.R. Kreiser, C.P. Qualls, S.C. Sweat, R. Birkhead, T.D. Tuberville, M. Aresco, E. McCoy, H. Mushinsky, and T.W. Hentges. 2017. Range-wide and regional patterns of population structure and genetic diversity in the gopher tortoises (Gopherus polyphemus). Journal of Fish and Wildlife Management 8:1-16. (Link)
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40. Mitchell, S.M., J.R. Ennen, K.K. Cecala, and J.M. Davenport. 2017. Ex-situ Pit-tag retention study in two Desmognathus species. Herpetological Review 48:313-3115. (Link)
39. Lovich, J.E., R.C. Averill-Murray, M. Agha, J.R. Ennen, and M. Austin. 2017. Variation in annual clutch phenology of desert tortoises (Gopherus morafkai) in the Sonoran Desert of Arizona. Herpetologica 73:313-322. (Link)
38. Ennen, J.R., W.A. Matamoros, J.E. Lovich, S.C. Hazzard, M. Agha, and C.W. Hoagstrom. 2017. Hierarchical, quantitative biogeographic provinces for all North American turtles and their contributions to the biogeography of turtles and the continent. Herpetological Monographs 31:114-140. (Link)
37. Agha, M., A.L. Smith, J.E. Lovich, D. Delaney, J.R. Ennen, J. Briggs, L.J. Fleckenstein, L.A. Tennant, S.R. Puffer, A. Walde, T.R. Arundel, S.J. Price, and B.D. Todd. 2017. Visitation and interactions of mesocarnivores at desert tortoise burrows in a utility-scale wind energy landscape. Journal of Wildlife Management 81:1117-1124. (Link)
36. Ennen, J.R., J.E. Lovich, R.C. Averill-Murray, C. Yackulic, M. Agha, C. Loughran, L. Tennant, and B. Sinervo. 2017. The evolution of different maternal investment strategies in two closely related desert vertebrates. Ecology and Evolution 7:3177-3189. (Link)
35. Liles, L.A., K.K. Cecala, J.R. Ennen, and J.M. Davenport. 2017. Elevated temperatures alter body condition and competitive outcomes in Appalachian salamanders. Animal Conservation 20:502-510. (Link)
2016
34. Ennen, J.R., M. Agha, W.A. Matamoros, S.C. Hazzard, and J.E. Lovich. 2016. Using climate, energy, and spatial-based hypotheses to interpret macroecological patterns of North America chelonians. Canadian Journal of Zoology 94:453-461. (Link)
33. Ennen, J.R., J.M. Davenport, and K.F. Alford. 2016. Evidence for asymmetric competition among headwater stream vertebrates. Hydrobiologia 772:207-213. (Link)
32. Ennen, J.R., J. Godwin, J.E. Lovich, B.R. Kreiser, B.P. Folt, and S.C. Hazzard. 2016. Interdrainage morphological and genetic differences in the Escambia Map Turtle, Graptemys ernsti. Herpetological Conservation and Biology 11:122–131. (Link)
2015
31. Ennen, J.R., P.V. Lindeman, and J.E. Lovich. 2015. Intersexual allometry differences and ontogenetic shifts of coloration patterns in two aquatic turtles, Graptemys oculifera and Graptemys flavimaculata. Ecology and Evolution 5:2296–2305. (Link)
30. Lovich, J.E., J.R. Ennen, C.B. Yackulic, K. Meyer, M. Agha, C. Loughran, C. Bjurlin, M. Austin, and S. Madrak. 2015. Not putting all their eggs in one basket: bet-hedging despite extraordinary annual reproductive output of desert tortoises. Biological Journal of the Linnean Society 115: 399-410. (Link)
29. Agha, M., J.E. Lovich, J.R. Ennen, B. Augustine, T.R. Arundel, M.O. Murphy, D. Delaney, J. Briggs, K. Meyer, C. Bjurlin, M. Austin, S. Madrak, L. Tennant, and S. Price. 2015. Turbines and terrestrial vertebrates: variation in tortoise survivorship between wind energy facility and an adjacent undisturbed wildland area in the desert southwest (USA). Journal of Environmental Management 56:332–341. (Link)
28. Agha, M.A., M.O. Murphy, J.E. Lovich, J.R. Ennen, C.R. Oldham, K. Meyers-Wilkins, C. Bjurlin, M. Austin, S. Madrak, C. Loughran, L. Tennant, and S.J. Price. 2015. The effect of research activities and winter precipitation on defensive voiding behavior of Agassiz's desert tortoise (Gopherus agassizii). Wildlife Research 41:641–549. (Link)
27. Agha, M., B. Augustine, J.E. Lovich, B. Sinervo, D. Delaney, M.O. Murphy, J.R. Ennen, R. Cooper, and S.J. Cooper. 2015. Using motion-sensor camera technology to infer seasonal activity and thermal niche of the desert tortoise (Gopherus agassizii). Journal of Thermal Biology 49-50:119-126. (Link)
2014
26. Lovich, J.E., M. Agha, C.B. Yackulic, K. Meyer, C. Bjurlin, J.R. Ennen, T.R. Arundel, and M. Austin. 2014. Nest site selection and lack of long-term nest fidelity in Agassiz's desert tortoises (Gopherus agassizii) at a wind energy facility in southern California. California Fish and Game Journal 100:404-416.
25. Godwin, J., J.E. Lovich, J.R. Ennen, B.R. Kreiser, B.P. Folt, and C. Lechowicz. 2014. Hybridization of two megacephalic map turtles (Testudines: Emydidae: Graptemys) in the Choctawhatchee River drainage of Alabama and Florida. Copeia 2014(4):725-742. (Link)
24. Ennen, J.R., M.E. Kalis, A.L. Patterson, B.R. Kreiser, J.E. Lovich, J. Godwin, and C.P. Qualls. 2014. Clinal variation or validation of a subspecies? A case study with the Graptemys nigrinoda complex (Testudines: Emydidae). Biological Journal of the Linnean Society 111:810-822. (Link)
2013
23. Lamb, J.Y., J.R. Ennen, and C.P. Qualls. 2013. Environmental characterization of nest-sites selected by gopher tortoises (Gopherus polyphemus) in southern Mississippi. Chelonian Conservation and Biology 12:227-234. (Link)
22. Ennen, J.R., and A.F. Scott. 2013. Home range characteristics and overwintering ecology of the Stripe-necked Musk Turtle (Sternotherus minor peltifer) in Middle Tennessee. Chelonian Conservation and Biology 12:199-203. (Link)
21. Agha, M., J. Lovich, J. Ennen, and E. Wilcox. 2013. Female nest guarding in Agassiz’s Desert Tortoise (Gopherus agassizii) at a wind energy facility near Palm Springs, California. The Southwestern Naturalist 58:256-260. (Link)
20. Lovich, J.E., and J.R. Ennen. 2013. A quantitative analysis of the state of knowledge of turtles of the United States and Canada. Amphibia-Reptilia 34:11-23. (Link)
19. Lovich, J.E., and J.R. Ennen. 2013. Assessing the state of knowledge of utility-scale wind energy development and operation on non-volant terrestrial and marine wildlife. Applied Energy 103:52–60. (Link)
18. Kreiser, B.K., J.R. Ennen, D.L. Gaillard, and C.P. Qualls. 2013. Isolation and characterization of polymorphic microsatellite loci for the gopher tortoise (Gopherus polyphemus) and cross-amplifiction in other species of Gopherus. Conservation Genetics Resources 5(1): DOI 10.10078/s12686-012-9781-8. (Link)
17. Sorber, J., A. Balasubramanian, M.D. Corner, J. Ennen, and C. Qualls. 2013. Tula: Balancing Energy for Sensing and Communication in a Perpetual Mobile System. IEEE Transactions on Mobile Computing 12:804-816. (Link)
2012
16. Lovich, J., M. Agha, M. Meulblok, K. Meyer, J. Ennen, C. Loughran, S. Madrak, and C. Bjurlin. 2012. Climatic variation affects clutch phenology in Agassiz’s desert tortoise (Gopherus agassizii). Endangered Species Research 19:63-74. (Link)
15. Ennen, J.R., B.R. Kreiser, C.P. Qualls, et al. 2012. Mitochondrial DNA assessment of the phylogeography of the Gopher Tortoise. Journal of Fish and Wildlife Management 3:110-122. (Link)
14. Noel, K.M., C.P. Qualls, and J.R. Ennen. 2012. A comparison of artificial incubation and natural incubation hatching success of gopher tortoise (Gopherus polyphemus) eggs in south Mississippi. Herpetologica 68:324–333. (Link)
13. Ennen, J.R., J.E. Lovich, K. Meyer, C. Bjurlin, and T. Arundel. 2012. Nesting ecology of a desert tortoise (Gopherus agassizii) population at a utility-scale renewable energy facility in Southern California. Copeia 2012:223–229. (Link)
12. Ennen, J.R., K., Meyers, and J. Lovich. 2012. Female desert tortoise activity at a wind energy facility in Southern California: the influence of an El Niño event. Natural Science 4:30–37.
2011
11. Lovich, J., J.R. Ennen, S. Madrak, C. Loughran, K. Meyer, T. Arundel, and C. Bjurlin. 2011. Long-term post-fire effects on spatial and reproductive ecology of female desert tortoises (Gopherus agassizii) at a wind energy facility near Palm Springs, California. Journal of Fire Ecology 7:75–87. (Link)
10. Lovich, J.E., and J.R. Ennen. 2011. Wildlife conservation and solar energy development in the desert southwest United States. BioScience 61:982–992. (Link)
9. Ennen, J.R., R. Birkhead, B.R. Kreiser, D. Gillard, J.E. Lovich, and C.P. Qualls. 2011. The effects of isolation on the demography and genetic diversity of long-lived species: implications for conservation and management for the gopher tortoise (Gopherus polyphemus). Herpetological Conservation and Biology 6:202–214. (Link)
8. Lovich, J.E., J.R. Ennen, S. Madrak, K. Meyer, C. Loughran, C. Bjurlin, T. Arundel, W. Tuner, C. Jones, and G.M. Groenendaal. 2011. Effects of long-term wind energy production on growth, demography, and survivorship of a desert tortoise (Gopherus agassizii) population in southern California with comparisons to natural populations. Herpetological Conservation and Biology 6:161–174. (Link)
7. Lovich, J.E., J.R. Ennen, S.V. Madrak, and B. Gover. 2011. Turtles and culverts: an unreported but potentially significant mortality threat to the desert tortoise (Gopherus agassizii). Chelonian Conservation and Biology 10:124–129. (Link)
6. Ennen, J.R. and C.P. Qualls. 2011. Habitat utilization of the Gopher Tortoise Tick (Amblyomma tuberculatum) in Southern Mississippi. Journal of Parasitology 97:202-206. (Link)
2010
5. Ennen, J.R., B. R. Kreiser, C. P. Qualls, and J. E. Lovich. 2010. Morphological and molecular reassessment of Graptemys oculifera and Graptemys flavimaculata. Journal of Herpetology 44:9–12. (Link)
4. Ennen, J.R., J.E. Lovich, B.R. Kreiser, W.W. Selman, II, and C.P. Qualls. 2010. Genetic and morphological variation between populations of the Pascagoula Map Turtle (Graptemys gibbonsi) in the Pearl and Pascagoula Rivers with description of a new species. Chelonian Conservation and Biology 9:98–113. (Link)
3. Ennen, J.R., B. R. Kreiser, and C. P. Qualls. 2010. Low genetic diversity in several Gopher Tortoise (Gopherus polyphemus) populations in the DeSoto National Forest, Mississippi. Herpetologica 66:91–98. (Link)
2009
2. Selman, W. II, J.R. Ennen, B. R. Kreiser, and C. P. Qualls. 2009. Cross-species amplification of Emydidae microsatellites loci in three Graptemys species and their utility as a conservation tool. Herpetological Review 40:32-37
2008
1. Ennen, J.R. and A. F. Scott. 2008. Diel behavior of the Stripe-necked Musk Turtle (Sternotherus minor peltifer) in Middle Tennessee. American Midland Naturalist 160:278-288. (Link)