Wade Ryberg

Research Scientist

Wade Ryberg

Dr. Wade Ryberg joined the Texas A&M Institute of Renewable Natural Resources in 2014 as a research scientist. His research program focuses on diagnosing, understanding and resolving complex problems in conservation biology and natural resource management. Many of these problems arise through mismatches in the scale of conservation or management and the spatial and temporal scale of ecological processes. Ryberg uses landscape, molecular, statistical and theoretical approaches to help realign these scales and develop successful conservation solutions and management policies.

Professional Experience

Postdoctoral Research Associate, Department of Wildlife and Fisheries Sciences, Texas A&M University, 2010-2014.
Postdoctoral Research Associate, School of Biology, Georgia Institute of Technology, 2009.

Education

Ph.D. (Evolution, Ecology, Population Biology), Washington University in St. Louis, 2009
M.S. (Wildlife and Fisheries Sciences), Texas A&M University, 2002
B.S. (Wildlife and Fisheries Sciences-Summa Cum Laude), Texas A&M University, 1999

Publications

(* denotes undergraduate mentee)

Ryberg, W.A., and L.A. Fitzgerald. 2015. Landscape composition, not connectivity, determines metacommunity structure across multiple scales. Ecography  DOI: 10.1111/ecog.01321

Ryberg, W.A., J. Harvey, A. Blick*, T.J. Hibbitts, and G.A. Voelker. 2015. Genetic structure is inconsistent with subspecies designations in the Western Massasauga (Sistrurus tergeminus). Journal of Fish and Wildlife Management DOI:dx.doi.org/10.3996/122014-JFWM-093.

Tan, J., Z. Pu, W.A. Ryberg, and L. Jiang. 2015. Resident-invader phylogenetic relatedness, not resident phylogenetic diversity, controls community invasibility. American Naturalist. 186(1) 59-71.

Ryberg, W.A., M.T. Hill, C.W. Painter, and L.A. Fitzgerald. 2015. Irreplaceable landforms in a self-organizing landscape determine sensitivity of population vital rates for an ecological specialist. Conservation Biology. DOI: 10.1111/cobi.12429

Ryberg, W.A., and L.A. Fitzgerald. 2015. Sand grain size composition influences subsurface oxygen diffusion and distribution of an endemic, psammophilic lizard. Journal of Zoology. DOI: 10.1111/jzo.12184

Ryberg, W.A., M.T. Hill, C.W. Painter, and L.A. Fitzgerald. 2013. Landscape pattern determines neighborhood size and structure within a lizard population. PLoS One 8(2) e56856.

Hibbitts, T.J., W.A. Ryberg, C.S. Adams*, A.M. Fields*, D. Lay*, and M.E. Young. 2013. Microhabitat selection by a habitat specialist and a generalist in both fragmentedand unfragmented landscapes. Herpetological Conservation and Biology 8(1) 104-113.

Ryberg, W.A., D. Lay*, M.T. Hill, and L.A. Fitzgerald. 2012. Observations on the reproductive and nesting ecology of the Dunes Sagebrush Lizard (Sceloporus arenicolus). Western North American Naturalist 72(4) 582-585.

Ryberg, W.A., K.G. Smith, and J.M. Chase. 2012. Predators alter the scaling of diversity in prey metacommunities. Oikos (121) 1995-2000.

Tan, J., Z. Pu, W.A. Ryberg, and L. Jiang. 2012. Species phylogenetic relatedness, priority effects, and ecosystem functioning.  Ecology 93(5) 1164-1172.

Dittmer, D., D.J. Leavitt, W.A. Ryberg, and L.A. Fitzgerald. 2012. Arizona elegans elegans (Kansas Glossy Snake) diet and feeding behavior. Herpetological Review 43(1) 143.

Ryberg, W.A., and T.J. Hibbitts. 2012. Alligator mississippiensis (American alligator) diet and growth rate. Herpetological Review 43(3) 475-476.

Chase, J.M., E.G. Biro, W.A. Ryberg, K.G. Smith. 2009. Predators temper the relative importance of stochastic processes in the assembly of prey metacommunities. Ecology Letters 12(11) 1210-1218.

Allan, B.F., R.B. Langerhans, W.A. Ryberg, R. Katz, N. Griffin, K.N. Smyth, B. Oberle, M. Schutzenhofer, W.J. Landesman, K.R. Crooks, R.S. Ostfeld and J.M. Chase. 2009. Ecological Correlates of Risk and Incidence of West Nile Virus in the United States. Oecologia 158(4) 699-708.

Ryberg, W.A., and J.M. Chase.  2007.  Predator-dependent species-area relationships. American Naturalist (170) 636-642.

Ryberg, W.A., and L.A. Fitzgerald. 2005. Herpetofaunal Inventory of Fort Wolters in North-Central Texas. Southwestern Naturalist 50(2) 267-271.

Chase, J.M., and W.A. Ryberg. 2004. Connectivity, scale-dependence, and the productivity–diversity relationship. Ecology Letters (7) 676-683.

Ryberg, W.A., L.A. Fitzgerald, R.L. Honeycutt, and J.C. Cathey, T.J. Hibbitts. 2004. Establishing a baseline inventory of vertebrates at the Richland Creek Wildlife Management Area in east Texas. Southwestern Naturalist 49(4) 528-534.

Ryberg, W.A., and J.C. Cathey. 2004. A box trap design to capture alligators in forested wetland habitats. Wildlife Society Bulletin 32(1) 183-187.

Ryberg, W.A., and G.H. Dayton.  2004.  Scaphiopus couchi (Couch’s spadefoot) predation by Masticophis flagellum (Coachwhip).  Herpetological Review 35(3) 263.

Ryberg, W.A., L.A. Fitzgerald, R.L. Honeycutt, and J.C. Cathey.  2002.  Genetic Relationships of American Alligator Populations Distributed across Different Ecological and Geographic Scales.  Journal of Experimental Zoology 294(4) 325-333.

Hibbitts, T.J., R.E. Nelson, and W.A. Ryberg. 2001. Geographic Distribution of Scaphiopus hurteri.  Herpetological Review 32(2) 116.

Hibbitts, T.J., R.E. Nelson, and W.A. Ryberg. 2001. Geographic Distribution of Hyla cinerea. Herpetological Review 32(2) 114.

In Review (manuscripts available upon request):

Ryberg, W.A., and L.A. Fitzgerald.  Landscape composition, not connectivity, determines metacommunity structure across multiple scales.  Ecography.

Technical Reports

Walkup, D.K., W.A. Ryberg, D.J. Leavitt, and L.A. Fitzgerald. 2014. Final Report: Effects of Landscape fragmentation on the Mescalero dune landscape and populations of the Dunes Sagebrush Lizard, Sceloporus arenicolus.  Bureau of Land Management, Carlsbad, New Mexico.

Ryberg, W.A., A. Blick, J. Harvey, T.J. Hibbitts, and G. Voelker. 2013. Genetic determination of the Desert Massasauga (Sistrurus catenatus catenatus) distribution in Texas.  Texas Parks and Wildlife Department, Austin, Texas.

Hibbitts, T.J., and W.A. Ryberg. 2013. Effects of fragmentation on Dunes Sagebrush Lizard populations and microhabitat use.  Texas A&M Institute of Renewable Natural Resources, College Station, Texas.

Walkup, D.K., W.A. Ryberg, D.J. Leavitt, and L.A. Fitzgerald. 2012. Effects of landscape fragmentation on the Mescalero dune landscape and populations of the Dunes Sagebrush Lizard, Sceloporus arenicolus. Bureau of Land Management, Carlsbad, New Mexico.

Ryberg, W.A., and L.A. Fitzgerald. 2011. Source-sink dynamics in a population of the Dunes Sagebrush Lizard (Sceloporus arenicolus) at Caprock Wildlife Area. Bureau of Land Management, Carlsbad, New Mexico.

Ryberg, W.A., and L.A. Fitzgerald.  2011.  Effects of management practices for oil and gas development on populations of the Dunes Sagebrush Lizard (Sceloporus arenicolus) in Texas.  Bureau of Land Management, Carlsbad, New Mexico.

Fitzgerald, L.A., C.W. Painter, T.J. Hibbitts, W.A. Ryberg, N. Smolensky.  2011.  The range and distribution of Sceloporus arenicolus in Texas.  Texas A&M Institute of Renewable Natural Resources, College Station, Texas.

Ryberg, W.A., and L.A. Fitzgerald.  2010.  Spatial variation in vital rates and movement rates across six populations of the Dunes Sagebrush Lizard (Sceloporus arenicolus) at Caprock Wildlife Area. Bureau of Land Management, Carlsbad, New Mexico.

Ryberg, W.A., and L.A. Fitzgerald.  2003.  Herpetofaunal Inventory of Fort Wolters in North-Central Texas. Texas Army National Guard-Division of Natural Resources, Austin, Texas.

Honeycutt, R.L., K. Banks, L.A. Fitzgerald, W.A. Ryberg, T.J. Hibbitts, F.P. Gelwick, B. Healey, J. Cathey, and J. Gunnels.  1999.  Monitoring Amphibians, Reptiles, Fishes, and Mammals at Richland Creek Wildlife Management Area. Texas Parks and Wildlife Department, Austin, Texas.

Fitzgerald, L.A., W.A. Ryberg, R. Knipe.  1999.  Baseline Monitoring of Amphibians and Reptiles at Keechi Creek Wildlife Management Area. Texas Parks and Wildlife Department, Austin, Texas.

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