Forestry and Natural Resources

Office Phone  (765) 494-3590 
Office Fax:    (765) 494-9461
Office Location:   PFEN 125 
E-mail Address:  rswihart@purdue.edu

Robert K. "Rob" Swihart
Head, Dept. of Forestry and Natural Resources

Purdue University
715 W State Street
West Lafayette, IN 47907-2033

Reprints

• Moore, J., A.B. McEuen, R.K. Swihart, T.A. Contreras, M.A. Steele 2007 Determinants of seed removal distance by scatter-hoarding rodents in deciduous forests Ecology 88: (10) 2529-2540
• Li,Y, Z.Feng, R.K. Swihart, J. Bryant, N. Huntly 2007 Modeling the Impact of Plant Toxicity on Plant-Herbivore Dynamics Journal of Dynamics and Differential Equations 18: (4) 1021-1042
• Moore, J. E., R. K. Swihart 2007 Toward ecologically explicit null models of nestedness Oecologia 151:663-664
• Moore, J. E., R. K. Swihart 2007 Importance of fragmentation-tolerant species as seed dispersers in disturbed landscapes Oecologia
• Rizkalla, C. E., R. K. Swihart 2006 Community structure and differential responses of aquatic turtles to agriculturally induced habitat fragmentation Landscape Ecology 21:1361-1375
• Duchamp, J. E., M Yates, R-M Muzika, R. K. Swihart 2006 Estimating probabilities of detection for bat echolocation calls: An application of the double-observer method Wildlife Society Bulletin 34(2): 408-412
• Swihart, R. K., J. J. Lusk, J. E. Duchamp, C. E. Rizkalla and J. E. Moore 2006 The roles of landscape context, niche breadth, and range boundaries in predicting species responses to habitat alteration Diversity and Distributions 12: 277-287
• Beever, E. A., R. K. Swihart and B. T. Bestelmeyer 2006 Linking the concept of scale to studies of biological diversity: evolvng approaches and tools Diversity and Distributions 12: 229-235
• Moore, J. E. , R. K. Swihart 2006 Nut Selection by captive blue jays: importance of availability and implications for seed dispersal The Condor 108: 377-388
• Feng, Z., L. Rong and R. K. Swihart 2005. Dynamics of an age-structured metapopulation model Natural Resource Modeling 18: 415-440.
• DeWoody, Y., Z. Feng, and R. K. Swihart. 2005. Merging spatial and temporal structure within a metapopulation model. American Naturalist 166:142-155.
• Moore, J. E. and R. K. Swihart 2005. Modeling patch occupancy by forest rodents: incorpporating detectability and spatial autocorrelation with hierarchically structured data. Journal of Wildlife Management 69(3): 933-949.
• Moore, J. E., D. M. Scheiman, and R. K. Swihart. 2004. A field examination of double-observer and removal modeling for estimating bird abundance. The Auk 121:865-876.
• Goheen, J. R. and R. K. Swihart 2005. Resource selection and predation of North American red squirrels in deciduous forest fragments. Journal of Mammalogy 86(1): 22-28.
• Swihart, R. K., and N. A. Slade. 2004. Modeling interactions of private ownership and biological diversity: an architecture for landscapes with sharp edges. Pages 3-21 in Conserving biodiversity in agricultural landscapes: model-based planning tools (R. K. Swihart and J. E. Moore, editors). Purdue University Press, West Lafayette , Indiana .
• Gehring, T. M., and R. K. Swihart. 2004. Home range and movements of long-tailed weasels in a landscape dominated by agriculture. Journal of Mammalogy 85:77-86.
• Feng, Z., R. Swihart, Y. Yi, and H. Zhu. 2004. Coexistence in a metapopulation model with explicit local dynamics. Mathematical Biosciences and Engineering 1:131-145.
• Swihart, R. K., and J. Verboom. 2004. Using ecologically scaled landscape indices to assess biodiversity consequences of land-use decisions. Pages 81-101 in Conserving biodiversity in agricultural landscapes: model-based planning tools (R. K. Swihart and J. E. Moore, editors). Purdue University Press, West Lafayette , Indiana .
• Miller, B. K., K. Schaaf, R. K. Swihart, and C. L. Arnold, Jr. 2004. Historical and human dimensions of nature-based planning: is time on our side? Pages 215-239 in Conserving biodiversity in agricultural landscapes: model-based planning tools (R. K. Swihart and J. E. Moore, editors). Purdue University Press, West Lafayette , Indiana .
• Miller, M. S., and R. K. Swihart. 2004. Ecologically scaled recognition of patches within a GIS environment. Pages 103-120 in Conserving biodiversity in agricultural landscapes: model-based planning tools (R. K. Swihart and J. E. Moore, editors). Purdue University Press , West Lafayette , Indiana .
• Gehring, T. M. and R. K. Swihart 2004. Home range and movements of long-tailed weasels in a landscape fragmented by agriculture. Journal of Mammalogy 85(1): 79-86.
• Gu, W., and R. K. Swihart. 2003. Are patch occupancy data sufficient for inferring metapopulation dynamics using spatially explicit patch occupancy models? Acta Zoologica Sinica 49:787-794.
• Goheen, J. R. and R. K. Swihart 2003. Food-hoarding behavior of gray squirrels and North American red squirrels in the central hardwoods region: implications for forest regeneration. Canadian Journal of Zoology 81: 1636-1639.
• Gu, W. and R. K. Swihart 2003. Absent or undetected? Effects of non-detection of species occurrence on wildlife-habitat models. Biological Conservation 116:195-203.
• Russell, R. E., R. K. Swihart and Z. Feng. 2003. Population consequences of movement decisions in a patchy landscape. Oikos 103: 142-152.
• Goheen, J. R., R. K. Swihart, and J. H. Robins. 2003. The anatomy of a range expansion: changes in cranial morphology and rates of energy extraction for North American red squirrels from different latitudes. Oikos 102: 33-44.
• Knapp, S. M., R. E. Russell, and R. K. Swihart. 2003. Setting priorities for conservation: the influence of uncertainty on species rankings of Indiana mammals. Biological Conservation 111: 223-234.
• Swihart, R. K. T. M. Gehring, M. B. Kolozsvary, and T. E. Nupp. 2003. Responses of “resistant” vertebrates to habitat loss and fragmentation: the importance of niche breadth and range boundaries. Diversity and Distributions 9: 1-18.
• Gehring, T. M., and R. K. Swihart. 2003. Body size, niche breadth, and ecologically scaled responses to habitat fragmentation: mammalian predators in an agricultural landscape. Biological Conservation 109: 283-295.
• Goheen, J. R., R. K. Swihart, T. M. Gehring, and M. S. Miller. 2003. Forces structuring tree squirrel communities in landscapes fragmented by agriculture: species differences in perceptions of forest connectivity and carrying capacity. Oikos 102: 95-103.
• Swihart, R. K., T. C. Atwood, J. R. Goheen, D. M. Scheiman, K. E. Munroe, and T. M. Gehring. 2003. Predicting patch occupancy of North American mammals: Is patchiness in the eye of the beholder? Journal of Biogeography: 30:1259-1279.
• Knapp, S. M., R. E. Russell, and R. K. Swihart. 2003. Setting priorities for conservation: the influence of uncertainty on species rankings of Indiana mammals. Biological Conservation 111: 223-234.
• Gehring, T. M., and R. K. Swihart. 2003. Body size, niche breadth, and ecologically scaled responses to habitat fragmentation: mammalian predators in an agricultural landscape. Biological Conservation 109: 283-295.
• Swihart, R. K., J. B. Dunning, Jr., and P. M. Waser. 2002. Gray matters in ecology: dynamics of pattern, process, and scientific progress. Bulletin of the Ecological Society of America 83: 149-155.
• Page, L. K., R. K. Swihart, and K. R. Kazacos. 2001. The roles of seed preference and foraging by granivores at raccoon latrines in transmission dynamics of raccoon roundworm ( Baylisascaris procyonis ). Canadian Journal of Zoology 79: 616-622.
• Swihart, R. K., Z. Feng, N. A. Slade, D. Mason, and T. M. Gehring. 2001. Effects of habitat destruction and resource supplementation in a predator-prey metapopulation model. Journal of Theoretical Biology 210: 287-303.
• Page, L. K., R. K. Swihart, and K. R. Kazacos. 2001. Foraging among feces: food availability affects parasitism of Peromyscus leucopus by Baylisascaris procyonis. Journal of Mammalogy 82: 993-1002.
• Nupp, T. E., and R. K. Swihart. 2001. Assessing competition between forest rodents in a fragmented landscape of midwestern USA . Mammalian Biology 66: 345-356.
• Page, L. K., R. K. Swihart, and K. R. Kazacos. 2001. Changes in transmission of Baylisascaris procyonis to intermediate hosts as a function of spatial scale. Oikos 93: 213-220.
• Swihart, R. K., and J. P. Bryant. 2001. Winter herbivory by mammals: the importance of biogeography and ontogeny of woody plants. Journal of Mammalogy 82: 1-21.
• Nupp, T. E., and R. K. Swihart. 2000. Landscape-level correlates of small mammal assemblages in forest fragments of farmland. Journal of Mammalogy 81: 512-526.
• Ivan, J. S., and R. K. Swihart. 2000. Selection of mast by granivorous rodents of the central hardwood forest region. Journal of Mammalogy 81: 549-562.
• Gehring, T. M., and R. K. Swihart. 2000. Field immobilization and use of radio collars for long-tailed weasels. Wildlife Society Bulletin 28: 579-585.
• Kolozsvary, M. B., and R. K. Swihart. 1999. Habitat fragmentation and the distribution of amphibians: patch and landscape correlates in farmland. Canadian Journal of Zoology 77: 1288-1299.
• Page, L. K., R. K. Swihart, and K. R. Kazacos. 1999. Implications of raccoon latrines in the epizootiology of baylisascariasis. Journal of Wildlife Diseases 35: 474-480.
• Swihart, R. K., H. P. Weeks, Jr., A. L. Easter-Pilcher, and A. J. DeNicola. 1998. Nutritional condition and fertility of white-tailed deer ( Odocoileus virginianus ) from areas with contrasting histories of hunting. Canadian Journal of Zoology 76: 1932-1941.
• Swihart, R. K., and T. E. Nupp. 1998. Modeling population responses of North American tree squirrels to agriculturally induced forest fragmentation. Pages 1-19 in Ecology and evolutionary biology of tree squirrels (M. A. Steele, D. A Zegers, and J. F. Merritt, eds.) . Virginia Museum of Natural History Special Publication Number 6.
• Nupp, T. E., and R. K. Swihart. 1998. Influence of forest fragmentation on population attributes of white-footed mice and eastern chipmunks. Journal of Mammalogy 79: 1234-1243.
• Swihart, R. K., and P. M. Picone. 1998. Selection of mature growth stages of coniferous browse in temperate forests by white-tailed deer ( Odocoileus virginianus ). American Midland Naturalist 139: 269-274.
• Page, L. K., R. K. Swihart, and K. R. Kazacos. 1998. Raccoon latrine structure and its potential role in parasite transmission to small vertebrates . American Midland Naturalist 140: 180-185.
• Swihart, R. K., and N. A. Slade.  1997.  On testing for independence of animal movements.  Journal of Agricultural, Biological, and Environmental Statistics 2: 1-16.
• Swihart, R. K., M. J. I. Mattina, and J. P. Pignatello. 1997. Repellency of predator urine to woodchucks and meadow voles. Pages 271-284 in Repellents in wildlife management . (J. R. Mason, ed.). Colorado State University Press.
• Swihart, R. K., and N. A. Slade. 1997. On testing for independence of animal movements. Journal of Agricultural, Biological, and Environmental Statistics 2: 1-16.
• DeNicola, A. J., and R. K. Swihart. 1997. Capture-induced stress in white-tailed deer. Wildlife Society Bulletin 25: 500-503.
• Swihart, R. K., and A. J. DeNicola. 1997. Public involvement, science, management, and the overabundance of deer: Can we avoid a hostage crisis? Wildlife Society Bulletin 25: 382-387.
• DeNicola, A. J., D. J. Kesler, and R. K. Swihart. 1997. Remotely delivered prostaglandin F 2 a implants terminate pregnancy in white-tailed deer. Wildlife Society Bulletin 25: 527-531.
• DeNicola, A. J., D. J. Kesler, and R. K. Swihart. 1997. Dose determination and efficacy of remotely delivered norgestomet implants on contraception of white-tailed deer. Zoo Biology 16: 31-37.
• Nupp, T. E., and R. K. Swihart. 1996. Effect of forest patch area on population attributes of white-footed mice ( Peromyscus leucopus ) in fragmented landscapes. Canadian Journal of Zoology 74: 467-472.
• DeNicola, A. J., R. K. Swihart, and D. J. Kesler. 1996. The effect of remotely delivered gonadotropin formulations on reproductive function of white-tailed deer. Drug Development and Industrial Pharmacy 22: 847-850.
• Bertrand, M., A. J. DeNicola, S. R. Beissinger, and R. K. Swihart. 1996. Effects of parturition on home ranges and social affiliations of female white-tailed deer. Journal of Wildlife Management : 60: 899-909.
• DeNicola, A. J., D. J. Kesler, and R. K. Swihart. 1996. Ballistics of a biobullet delivery system. Wildlife Society Bulletin 24: 301-305.
• Swihart, R. K., and P. M. Picone. 1995. Use of woodchuck burrows by small mammals in agricultural habitats. American Midland Naturalist 133: 360-363.
• Swihart, R. K., and A. J. DeNicola. 1995. Modeling the impacts of contraception on populations of white-tailed deer. Pages 151-163 in Urban deer - a manageable resource? (J. McAninch, ed.). North Central Section, The Wildlife Society.
• Sheperd, B. F., and R. K. Swihart. 1995. Spatial dynamics of fox squirrels ( Sciurus niger ) in fragmented landscapes. Canadian Journal of Zoology 73: 298-2105.
• Swihart, R. K., P. M. Picone, A. J. DeNicola, and L. Cornicelli. 1995. Ecology of urban and suburban white-tailed deer. Pages 35-44 in Urban deer - a manageable resource? (J. McAninch, ed.). North Central Section, The Wildlife Society.
• Bryant, J. P., R. K. Swihart, P. B. Reichardt, and L. Newton. 1994. Biogeography of woody plant chemical defense against hare browsing in North America: Alaska and eastern North America . Oikos 70: 385-395.
• Swihart, R. K., and P. M. Picone. 1994. Damage to apple trees associated with woodchuck burrows in orchards. Journal of Wildlife Management 58: 357-360.
• Swihart, R. K., J. P. Bryant, and L. Newton. 1994. Latitudinal patterns in consumption of woody plants by snowshoe hares in the eastern United States . Oikos 70: 427-434.
• Swihart, R. K. 1992. Ecological considerations and the management of wildlife damage. Proceedings of the Eastern Wildlife Damage Control Conference 5: 15-23.
• Swihart, R. K. 1992. Home-range attributes and spatial structure of woodchuck populations. Journal of Mammalogy 73: 604-618.
• Swihart, R. K. 1991. Modifying scent-marking behavior to reduce woodchuck damage to fruit trees. Ecological Applications 1: 98-103.
• Swihart, R. K. 1991. Influence of Marmota monax on vegetation in hayfields. Journal of Mammalogy 72: 791-795.
• Swihart, R. K., and P. M. Picone. 1991. Arboreal foraging and palatability of tree leaves to woodchucks. American Midland Naturalist 125: 372-374.
• Magnarelli, L., and R. K. Swihart. 1991. Spotted-fever group rickettsiae or Borrelia burgdorferi in Ixodes cookei (Ixodidae) in Connecticut . Journal of Clinical Microbiology 29: 1520-1522.
• Swihart, R. K., and M. R. Conover. 1991. Responses of woodchucks to potential garden crop repellents. Journal of Wildlife Management 55: 177-181.
• Swihart, R. K., and P. M. Picone. 1991. Effects of woodchuck activity on woody plants near burrows. Journal of Mammalogy 72: 607-611.
• Swihart, R. K., J. J. Pignatello, and M. J. I. Mattina. 1991. Aversive responses of white-tailed deer, Odocoileus virginianus , to predator urines. Journal of Chemical Ecology 17: 767-777.
• Swihart, R. K., and M. R. Conover. 1990. Reducing deer damage to yews and apple trees: testing Big Game Repellent Ò , Ro . pel Ò , and soap as repellents. Wildlife Society Bulletin 18: 156-162.
• Swihart, R. K. 1990. Quebracho, thiram, and methiocarb reduce consumption of apple twigs by meadow voles. Wildlife Society Bulletin 18: 162-166.
• Spencer, S. R., G. N. Cameron, and R. K. Swihart. 1990. Operationally defining home range: temporal dependence exhibited by hispid cotton rats. Ecology 71: 1817-1822.
• Swihart, R. K., and N. A. Slade. 1990. Long-term dynamics of an early successional small mammal community. American Midland Naturalist 123: 372-382.
• Swihart, R. K. 1990. Common components of orchard ground cover selected as food by captive woodchucks. Journal of Wildlife Management 54: 412-417.
• Swihart, R. K., and N. A. Slade. 1989. Differences in home-range size between sexes of Microtus ochrogaster. Journal of Mammalogy 70: 816-820.
• Johnson, S. G., and R. K. Swihart. 1989. The influence of predation risk on central place foraging variables in the American robin, Turdus migratorius . Transactions of the Kansas Academy of Science 92: 155-158.
• Swihart, R. K., N. A. Slade, and B. J. Bergstrom. 1988. Relating body size to the rate of home-range use in mammals. Ecology 69: 393-399.
• Swihart, R. K., and N. A. Slade. 1987. Testing for independence of movements as shown by live trapping. American Midland Naturalist 117: 204-207.
• Danielson, B. J., and R. K. Swihart. 1987. Home range dynamics and activity patterns of Microtus ochrogaster and Synaptomys cooperi in syntopy. Journal of Mammalogy 68: 160-165.
• Swihart, R. K. 1986. Home range-body mass allometry in rabbits and hares (Leporidae). Acta Theriologica 31: 139-148.
• Swihart, R. K., and S. G. Johnson. 1986. Foraging decisions of American robins: somatic and reproductive tradeoffs. Behavioral Ecology and Sociobiology 19: 275-282.
• Swihart, R. K., and N. A. Slade. 1986. The importance of statistical power when testing for independence in animal movements. Ecology 67: 255-258.
• Swihart, R. K., and N. A. Slade. 1985. Testing for independence of observations in animal movements. Ecology 66: 1176-1184.
• Swihart, R. K., and N. A. Slade. 1985. Seasonal use of brush piles by the hispid cotton rat ( Sigmodon hispidus ). Journal of Mammalogy 66: 577-580.
• Swihart, R. K., and N. A. Slade. 1985. Influence of sampling interval on estimates of home range size. Journal of Wildlife Management 49: 1019-1025.
• Swihart, R. K., and R. H. Yahner. 1984. Winter use of insular habitat patches by the eastern cottontail. Acta Theriologica 29: 45-56.
• Swihart, R. K., and N. A. Slade. 1984. Road crossing by Sigmodon hispidus and Microtus ochrogaster. Journal of Mammalogy 65: 357-360.
• Swihart, R. K. 1984. Body size, breeding season length, and life history tactics of lagomorphs. Oikos 43: 282-290.
• Swihart, R. K., and R. H. Yahner. 1983. Browse preferences of jackrabbits and cottontails for species used in shelterbelt plantings. Journal of Forestry 81: 92-94.
• Slade, N. A., and R. K. Swihart. 1983. Home range indices for the hispid cotton rat ( Sigmodon hispidus ) in northeastern Kansas. Journal of Mammalogy 64: 580-590.
• Swihart, R. K., and R. H. Yahner. 1983. Browse use by eastern cottontails in a southeastern Minnesota farmstead shelterbelt. Journal of the Minnesota Academy of Science 48: 13-15.
• Swihart, R. K., and R. H. Yahner. 1982. Eastern cottontail use of fragmented farmland habitat. Acta Theriologica 27: 257-273.
• Swihart, R. K., and R. H. Yahner. 1982. Habitat features influencing use of farmstead shelterbelts by the eastern cottontail ( Sylvilagus floridanus ). American Midland Naturalist 107: 411-414.
• Swihart, R. K. 1982. Scansorial behavior in woodchucks. Canadian Field-Naturalist 96: 215-216.