Babin, C. H. and J. J. Howard. Size-dependent patterns of reproductive investment in the North American invasive plant species Triadica sebifera (L.) Small (Euphorbiaceae). In Review, Biological Invasions. October 2, 2017.
Clark, J. W. and J. J. Howard. Pollination mechanisms of Triadica sebifera (Euphorbiaceae) in the southeastern United States. In Review, Journal of the Torrey Botanical Society. July 18, 2017.
Howard, J. J., R. B. Wall, L. B. Mowbray, and S. G. Hereford. 2016. Nesting activity budgets and anti-predator behaviors of Mississippi sandhill cranes. Proceedings of the North American Crane Workshop 13: 67-74. pdf
Howard, J. J. 2012. Hurricane Katrina impact on a leveed bottomland hardwood forest in south Louisiana. American Midland Naturalist. 168:56-69.
Henkel, J. R., K. L. Jones, S. G. Hereford, M. L. Savoie, S. P. Leibo, and J. J. Howard. 2012. Integrating microsatellite and pedigree analyses to facilitate the captive management of the endangered Mississippi sandhill crane (Grus canadensis pulla). Zoo Biology 31: 322-335. DOI: 10.1002/zoo.20399. pdf
Onoda, Y., M. Westoby, P. B. Adler, A.M.F. Choong, F. J. Clissold, J.H.C. Cornelissen, S. Diaz, N. J. Dominy, A. Elgart, L. Enrico, P.V.A. Fine, J. J. Howard, A. Jalili, K. Kitajima, H. Kurokawa, C. McArthur, P. W. Lucas, L. Markesteijn, N. Perez-Harguindeguy, L. Poorter, L. Richards, L. S. Santiago, E. E. Sosinski Jr, S. A. Van Bael, D. I. Warton, I. J. Wright, S. J. Wright, N. Yamashita. 2011. Global patterns of leaf mechanical properties. Ecology Letters 14: 301-312. doi: 10.1111/j.1461-0248.2010.01582.x pdf
Madosky, J.M., D. I. Rubenstein, J. J. Howard, and S. Stuska. 2010. The effects of immunocontraception on harem fidelity in a feral horse (Equus caballus) population on Shackleford Banks, NC. Applied Animal Behavior Science 128:50-56. pdf
Jones, K. L., J. R. Henkel, J. J. Howard , S. L. Lance, C. Hagen, and T. C. Glenn. 2010. Isolation and characterization of 14 polymorphic microsatellite DNA loci for the endangered Whooping crane (Grus americana) and their applicability to other crane species. Conservation Genetics Resources 2: 251-254. DOI: 10.1007/s12686-010-9196-3. pdf
Burd, M. and J. J. Howard, 2008. Optimality in a partitioned task performed by social insects. Biology Letters 4:627-629. pdf
Burd, M. and J. J. Howard. 2005. Global optimization from suboptimal parts: Foraging sensu lato by leaf-cutting ants. Behavioral Ecology and Sociobiology 59: 234-242. pdf
Burd, M. and J. J. Howard. 2005. Central-place foraging continues beyond the nest entrance: the underground performance of leaf-cutting ants. Animal Behaviour. 70: 737-744. pdf
Hull-Sanders, H. M. and J. J. Howard. 2003. Impact of Atta colombica colonies on understory vegetation and light availability in a Neotropical forest. Biotropica 35: 441-445. pdf
Howard, J. J. 2001. Costs of trail construction and maintenance in the leaf-cutting ant Atta columbica. Behavioral Ecology and Sociobiology 49: 348-356. pdf
Snyder, M. J., Champagne, D. E., Cohen, M. B., and Howard, J. J. 1998. Effects of plant diet on the detoxification enzyme activities of two grasshoppers, Melanoplus differentialis and Taeniopoda eques. Journal of Chemical Ecology 24: 2151-2165.
Armbruster, W. S., J. J. Howard, T. P. Clausen, E. Debevec, J. Loquvam, M. Matsuki, B. Cerendolo, and F. Andel. (1997) Do biochemical exaptations link evolution of defense and pollination systems? Historical hypotheses and experimental tests with Dalechampia vines. American Naturalist 149: 461-484.
Howard, J.J., M. L. Hennemann, G. Cronin, J. A. Fox and G. Hormiga. (1996) Conditioning of scouts and recruits during foraging by a leafcutting ant (Atta colombica). Animal Behaviour 52: 299-306.
Howard, J. J. (1995) Variation in dietary patterns among and within polyphagous grasshopper species (Orthoptera: Acrididae). Journal of Insect Behavior, 8: 563-577.
Howard, J. J., D. Raubenheimer, and E. A. Bernays. (1994) Population and individual polyphagy in the grasshopper Taeniopoda eques during natural foraging. Entomologia experimentalis et Applicata 71: 167-176.
Howard, J.J. (1993) Temporal pattern of resource use and variation in diets of individual grasshoppers. Journal of Insect Behavior 6: 441-453.
Bernays, E. A., K. Bright, J. J. Howard. D. Raubenheimer, and D. Champagne, (1992) Variety is the spice of life: Frequent switching of foods in the polyphagous grasshopper Taeniopoda eques Burmeister (Orthoptera: Acrididae). Animal Behaviour 44: 721-731.
Bernays, E.A., J.J. Howard, D. Champagne, and B. J. Estesen. (1991). Rutin: A phagostimulant for the polyphagous grasshopper Schistocerca americana. Entomologia Experimentalis et Applicata 60: 19-28.
Howard, J. J. and E. A. Bernays. (1991). Experience affects palatability hierarchies of novel plants in the polyphagous grasshopper Schistocerca americana. Oecologia 87: 424-428.
Howard, J. J. (1991). Resource quality and cost in the foraging of leafcutter ants. Pages 42-50 In: C. Huxley and D. Cutler, editors. Ant-Plant Interactions. Oxford University Press, Oxford, U.K.
Howard, J. J. (1990). Infidelity of leafcutting ants to host plants: resource heterogeneity or defense induction? Oecologia (Berlin) 82: 394-401.
Howard, J. J., T. P. Green, and D. F. Wiemer (1989). Comparative deterrency of two terpenoids to two genera of attine ants. Journal of Chemical Ecology 15: 2279-2288.
Cazin, J. Jr., D. F. Wiemer and J. J. Howard (1989). Growth characteristics of fungi cultivated by the attine ants. I. Isolation, identification, growth enhancement, growth inhibition and long-term storage. Applied and Environmental Microbiology 55: 1346-1350.
Howard, J. J., J. Cazin, Jr., and D. F. Wiemer (1988). Toxicity of terpenoid deterrents to the leafcutting ant Atta cephalotes and its mutualistic fungus. Journal of Chemical Ecology 14: 59-69.
Howard, J. J. (1988). Leafcutting ant diet selection: relative influence of leaf chemistry and physical features. Ecology 69: 250-260.
Howard, J. J. (1987). Leafcutting ant diet selection: The role of nutrients, water, and secondary chemistry. Ecology 68: 503-515.
Johnson, L. K. and J. J. Howard (1987). Olfactory disc number in bees of different sizes and ways of life. Journal of the Kansas Entomological Society 60: 380-388.
Howard, J. J. (1987). Repellent activity of the secretion of Edessa rufomarginata, a neotropical pentatomid. Revista de Biologia Tropical 35: 139-141.
Howard, J. J. and D. F. Wiemer (1986). Chemical ecology of host plant selection by the leafcutting ant Atta cephalotes. Pages 260-273 In C. S. Lofgren and R. K. Vander Meer, eds. Fire ants and leafcutting ants: Biology and management. Westview Press, Boulder, Colorado.
Howard, J. J. (1985). Observations on resin gathering by six interacting species of stingless bees (Apidae: Meliponinae). Journal of the Kansas Entomological Society 58: 337-345.
Howard, J. J. (1984). A survey of cyanogenesis in plants of Santa Rosa National Park, Costa Rica. Revista de Biologia Tropical 32: 163-165.
Hubbell, S. P., J. J. Howard and D. F. Wiemer (1984). Chemical leaf repellency to an attine ant: seasonal distribution among potential host plant species. Ecology 65: 1067-1076.
Chen, T. K., D. F. Wiemer and J. J. Howard (1984). A volatile leafcutter ant repellent from Astronium graveolens. Naturwissenschaften 71: 97-98.
Howard, J.J. and D. F. Wiemer (1983). The defensive secretion of Edessa rufomarginata. Naturwissenschaften 70: 202-203.
Clark, J. W. and J. J. Howard. Pollination mechanisms of Triadica sebifera (Euphorbiaceae) in the southeastern United States. In Review, Journal of the Torrey Botanical Society. July 18, 2017.
Howard, J. J., R. B. Wall, L. B. Mowbray, and S. G. Hereford. 2016. Nesting activity budgets and anti-predator behaviors of Mississippi sandhill cranes. Proceedings of the North American Crane Workshop 13: 67-74. pdf
Howard, J. J. 2012. Hurricane Katrina impact on a leveed bottomland hardwood forest in south Louisiana. American Midland Naturalist. 168:56-69.
Henkel, J. R., K. L. Jones, S. G. Hereford, M. L. Savoie, S. P. Leibo, and J. J. Howard. 2012. Integrating microsatellite and pedigree analyses to facilitate the captive management of the endangered Mississippi sandhill crane (Grus canadensis pulla). Zoo Biology 31: 322-335. DOI: 10.1002/zoo.20399. pdf
Onoda, Y., M. Westoby, P. B. Adler, A.M.F. Choong, F. J. Clissold, J.H.C. Cornelissen, S. Diaz, N. J. Dominy, A. Elgart, L. Enrico, P.V.A. Fine, J. J. Howard, A. Jalili, K. Kitajima, H. Kurokawa, C. McArthur, P. W. Lucas, L. Markesteijn, N. Perez-Harguindeguy, L. Poorter, L. Richards, L. S. Santiago, E. E. Sosinski Jr, S. A. Van Bael, D. I. Warton, I. J. Wright, S. J. Wright, N. Yamashita. 2011. Global patterns of leaf mechanical properties. Ecology Letters 14: 301-312. doi: 10.1111/j.1461-0248.2010.01582.x pdf
Madosky, J.M., D. I. Rubenstein, J. J. Howard, and S. Stuska. 2010. The effects of immunocontraception on harem fidelity in a feral horse (Equus caballus) population on Shackleford Banks, NC. Applied Animal Behavior Science 128:50-56. pdf
Jones, K. L., J. R. Henkel, J. J. Howard , S. L. Lance, C. Hagen, and T. C. Glenn. 2010. Isolation and characterization of 14 polymorphic microsatellite DNA loci for the endangered Whooping crane (Grus americana) and their applicability to other crane species. Conservation Genetics Resources 2: 251-254. DOI: 10.1007/s12686-010-9196-3. pdf
Burd, M. and J. J. Howard, 2008. Optimality in a partitioned task performed by social insects. Biology Letters 4:627-629. pdf
Burd, M. and J. J. Howard. 2005. Global optimization from suboptimal parts: Foraging sensu lato by leaf-cutting ants. Behavioral Ecology and Sociobiology 59: 234-242. pdf
Burd, M. and J. J. Howard. 2005. Central-place foraging continues beyond the nest entrance: the underground performance of leaf-cutting ants. Animal Behaviour. 70: 737-744. pdf
Hull-Sanders, H. M. and J. J. Howard. 2003. Impact of Atta colombica colonies on understory vegetation and light availability in a Neotropical forest. Biotropica 35: 441-445. pdf
Howard, J. J. 2001. Costs of trail construction and maintenance in the leaf-cutting ant Atta columbica. Behavioral Ecology and Sociobiology 49: 348-356. pdf
Snyder, M. J., Champagne, D. E., Cohen, M. B., and Howard, J. J. 1998. Effects of plant diet on the detoxification enzyme activities of two grasshoppers, Melanoplus differentialis and Taeniopoda eques. Journal of Chemical Ecology 24: 2151-2165.
Armbruster, W. S., J. J. Howard, T. P. Clausen, E. Debevec, J. Loquvam, M. Matsuki, B. Cerendolo, and F. Andel. (1997) Do biochemical exaptations link evolution of defense and pollination systems? Historical hypotheses and experimental tests with Dalechampia vines. American Naturalist 149: 461-484.
Howard, J.J., M. L. Hennemann, G. Cronin, J. A. Fox and G. Hormiga. (1996) Conditioning of scouts and recruits during foraging by a leafcutting ant (Atta colombica). Animal Behaviour 52: 299-306.
Howard, J. J. (1995) Variation in dietary patterns among and within polyphagous grasshopper species (Orthoptera: Acrididae). Journal of Insect Behavior, 8: 563-577.
Howard, J. J., D. Raubenheimer, and E. A. Bernays. (1994) Population and individual polyphagy in the grasshopper Taeniopoda eques during natural foraging. Entomologia experimentalis et Applicata 71: 167-176.
Howard, J.J. (1993) Temporal pattern of resource use and variation in diets of individual grasshoppers. Journal of Insect Behavior 6: 441-453.
Bernays, E. A., K. Bright, J. J. Howard. D. Raubenheimer, and D. Champagne, (1992) Variety is the spice of life: Frequent switching of foods in the polyphagous grasshopper Taeniopoda eques Burmeister (Orthoptera: Acrididae). Animal Behaviour 44: 721-731.
Bernays, E.A., J.J. Howard, D. Champagne, and B. J. Estesen. (1991). Rutin: A phagostimulant for the polyphagous grasshopper Schistocerca americana. Entomologia Experimentalis et Applicata 60: 19-28.
Howard, J. J. and E. A. Bernays. (1991). Experience affects palatability hierarchies of novel plants in the polyphagous grasshopper Schistocerca americana. Oecologia 87: 424-428.
Howard, J. J. (1991). Resource quality and cost in the foraging of leafcutter ants. Pages 42-50 In: C. Huxley and D. Cutler, editors. Ant-Plant Interactions. Oxford University Press, Oxford, U.K.
Howard, J. J. (1990). Infidelity of leafcutting ants to host plants: resource heterogeneity or defense induction? Oecologia (Berlin) 82: 394-401.
Howard, J. J., T. P. Green, and D. F. Wiemer (1989). Comparative deterrency of two terpenoids to two genera of attine ants. Journal of Chemical Ecology 15: 2279-2288.
Cazin, J. Jr., D. F. Wiemer and J. J. Howard (1989). Growth characteristics of fungi cultivated by the attine ants. I. Isolation, identification, growth enhancement, growth inhibition and long-term storage. Applied and Environmental Microbiology 55: 1346-1350.
Howard, J. J., J. Cazin, Jr., and D. F. Wiemer (1988). Toxicity of terpenoid deterrents to the leafcutting ant Atta cephalotes and its mutualistic fungus. Journal of Chemical Ecology 14: 59-69.
Howard, J. J. (1988). Leafcutting ant diet selection: relative influence of leaf chemistry and physical features. Ecology 69: 250-260.
Howard, J. J. (1987). Leafcutting ant diet selection: The role of nutrients, water, and secondary chemistry. Ecology 68: 503-515.
Johnson, L. K. and J. J. Howard (1987). Olfactory disc number in bees of different sizes and ways of life. Journal of the Kansas Entomological Society 60: 380-388.
Howard, J. J. (1987). Repellent activity of the secretion of Edessa rufomarginata, a neotropical pentatomid. Revista de Biologia Tropical 35: 139-141.
Howard, J. J. and D. F. Wiemer (1986). Chemical ecology of host plant selection by the leafcutting ant Atta cephalotes. Pages 260-273 In C. S. Lofgren and R. K. Vander Meer, eds. Fire ants and leafcutting ants: Biology and management. Westview Press, Boulder, Colorado.
Howard, J. J. (1985). Observations on resin gathering by six interacting species of stingless bees (Apidae: Meliponinae). Journal of the Kansas Entomological Society 58: 337-345.
Howard, J. J. (1984). A survey of cyanogenesis in plants of Santa Rosa National Park, Costa Rica. Revista de Biologia Tropical 32: 163-165.
Hubbell, S. P., J. J. Howard and D. F. Wiemer (1984). Chemical leaf repellency to an attine ant: seasonal distribution among potential host plant species. Ecology 65: 1067-1076.
Chen, T. K., D. F. Wiemer and J. J. Howard (1984). A volatile leafcutter ant repellent from Astronium graveolens. Naturwissenschaften 71: 97-98.
Howard, J.J. and D. F. Wiemer (1983). The defensive secretion of Edessa rufomarginata. Naturwissenschaften 70: 202-203.