James F. Gilliam ('Jim')
Department of Biology
North Carolina State University
Raleigh, NC 27695-7617

Phone (919) 515-5978
Fax (919) 515-1801
Email james_gilliam@ncsu.edu 

Department of Biology (formerly Dept of Zoology)
College of Agriculture and Life Sciences (CALS)

NCSU Graduate School
NCSU Home Page

Other Affiliations here at NCSU

Program in Biomathematics
Program in Fisheries and Wildlife

WM Keck Center for Behavioral Biology


Population Ecology (ZO 660, previously ZO 517)

Evolution (ZO 450)

Seminar in Evolutionary Biology (ZO 692)

Topical Problems (ZO 592; last five offerings have been: Harvesting Theory; Evolution of Life Histories; Classics in Ecology; Professional Survival Skills; and Modeling Animal Movement and Spatial Dynamics)

Research Interests

Behavioral ecology, especially decision-making by prey faced with conflicting demands (foraging, survival, reproduction)

Behavioral control of demographic rates: mortality rate, fecundity, individual growth rate, and local immigration/emigration

Population fragmentation, and movement among local populations

Tropical biology

Mathematical biology

Aquatic ecology, especially of stream fish

Current International Activity

Trinidad and Tobago; ecology of fish communities in streams and rivers.

Education and Previous Institutions

            Previous institutions


Hall DJ, Werner EE, Gilliam JF, Mittelbach GG, Howard D, Doner CG, Dickerman JA, Stewart AJ 1979. Diel foraging behavior and prey selection in the golden shiner (Notemigonus crysoleucas). Journal of the Fisheries Research Board of Canada 36 (9): 1029-1039.

Reynoldson, T.B., J.F. Gilliam, and R.M. Jaques. 1981. Competitive exclusion and co-existence in natural populations of Polycelis nigra and P. tenuis (Tricladida, Turbellaria). Arch. Hydrobiol. 92:71-113.

Gilliam, J.F., R.F. Green, and N.E. Pearson. 1982. The fallacy of the traffic policeman: a response to Templeton and Lawlor. The American Naturalist 119:875-878. pdf

Werner, E.E., G.G. Mittelbach, D.J. Hall, and J.F. Gilliam. 1983. Experimental tests of optimal habitat use in fish: the role of relative habitat profitability. Ecology 64:1525-1539. pdf

Werner, E.E., J.F. Gilliam, D.J. Hall and G.G. Mittelbach. 1983. An experimental test of the effects of predation risk on habitat use in fish. Ecology 64:1540-1548. pdf

Werner, E.E. and J.F. Gilliam. 1984. The ontogenetic niche and species interactions in size-structured populations. Annual Review of Ecology and Systematics 15:393-425. pdf

Gilliam, J.F. and D.F. Fraser. 1987. Habitat selection under predation hazard: test of a model with stream-dwelling minnows. Ecology 68:1856-1862. pdf

Fraser, D.F. and J.F. Gilliam. 1987. Feeding under predation hazard: response of the guppy and Hart's rivulus from sites with contrasting predation hazard. Behavioral Ecology and Sociobiology 21:203-209.pdf

Gilliam, J.F. and D.F. Fraser. 1988. Resource depletion and habitat segregation by competitors under predation hazard. In L. Persson and B. Ebenman (eds.). Size-structured Populations: Ecology and Evolution, Springer-Verlag. pdf

Gilliam, J.F., D.F. Fraser and A.M. Sabat. 1989. Strong effects of foraging minnows on a stream benthic invertebrate community. Ecology 70:445-452. pdf

Gilliam, J.F. 1990. Hunted by the hunted: Optimal prey selection by foragers under predation hazard. Pages 797-818 in R. N. Hughes (ed.). Behavioural mechanisms of food selection. Springer-Verlag, Heidelberg, New York.

Fraser, D.F. and J.F. Gilliam. 1992. Nonlethal predator effects in a patchy environment: habitat shifts and suppression of growth and reproduction. Ecology 73:959-970. pdf

Gilliam, J.F., D.F. Fraser, and M. Alkins-Koo. 1993. Structure of a tropical fish assemblage: A role for biotic interactions. Ecology 74:1856-1870. pdf

Tyler, J.L. and J.F. Gilliam. 1995. Ideal free distributions of stream fish: a model and test with minnows, Rhinichthys atratulus. Ecology 76:580-592. pdf

Fraser, D.F., J.F. Gilliam, and T. Yip-Hoi. 1995. Predation threat as an agent of population fragmentation in a tropical watershed. Ecology 76:1461-1472. pdf

Powell, R., J. Zimmerman, E. Seaman, and J. Gilliam. 1996. Demographic analyses of a hunted black bear population with access to a refuge. Conservation Biology 10:224-234. pdf

Gilliam, J. F. and T. A. Cady. 1997. Water quality effects of above-stream fish feeders in low-nutrient North Carolina mountain streams. Publication no. 314, Water Resources Research Institute of the University of North Carolina. pdf

Fraser, D.F., J.F. Gilliam, M.P. McGowan, C. M. Arcaro, and P. H. Guillozet. 1999. Habitat quality in a hostile river corridor. Ecology 80:597-607. pdf

Skalski, G.T. and J.F. Gilliam. 2000. Modeling diffusive spread in a heterogeneous population: A movement study with stream fish. Ecology 81:1685-1700. pdf

Gilliam, J.F. and D.F. Fraser. 2001. Movement in corridors: Enhancement by predation threat, disturbance, and habitat structure. Ecology 82:258-273. pdf

Skalski, G.T. and J.F. Gilliam. 2001. Functional responses with predator interference: viable alternatives to the Holling Type II model. Ecology 82:3083-3092. pdf

Fraser, D.F., J.F. Gilliam, M.J. Daley, A.N. Le, and G.T. Skalski. 2001. Explaining leptokurtic movement distributions: intrapopulation variation in boldness and exploration. The American Naturalist 158:124-135. pdf

Skalski, G.T. and J.F. Gilliam. 2002. Feeding under predation hazard: testing models of adaptive behavior with stream fish. The American Naturalist 160:158-172. pdf

Skalski, G.T. and J.F. Gilliam. 2003. A diffusion-based theory of organism dispersal in heterogeneous populations. The American Naturalist 161:441-458. pdf

Fraser, D.F., James F. Gilliam, Jeena T. Akkara, Brett W. Albanese, and Sunny B. Snider. 2004. Night feeding by guppies under predator release: effects on growth and daytime courtship.  Ecology 85:312-319. pdf

Skalski, G.T., M. E. Picha, J. F. Gilliam, and R. J. Borski. 2005. Variable intake, compensatory growth and increased growth efficiency in a teleost fish: models and mechanisms. Ecology 86:1452-1462. pdf


Fraser, D.F., J.F. Gilliam, B.W. Albanese, and S.B. Snider. 2006. Effects of temporal patterning of predation threat on movement of a stream fish: evaluating an intermediate threat hypothesis.  Environmental Biology of Fish 76:25-35.pdf


Snider, S.B. and J.F. Gilliam. 2008. Movement ecology: Size-specific behavioral response of an invasive snail to food availability.  Ecology 89: 1961-1971.pdf


Modified July 2008