William Neal Reynolds Distinguished Professor
Department of Biology
Box 7617
North Carolina State University
Raleigh, NC 27695
Office Phone: (919) 515-4588

Effects of habitat loss and fragmentation on populations, communities, and ecosystems; Consequences of biodiversity loss, nitrogen deposition, and other global changes for trophic structure; Spatial ecology; Application of ecological theory to conservation and management

1997     Ph.D., Ecology, University of Georgia; Advisor: Ron Pulliam
1991     B.S., Biology with honors, Stanford University; Thesis Advisor: Paul Ehrlich

2012-                 William Neal Reynolds Distinguished Professor, Department of Biology, North Carolina State University
2012-                 Director of Graduate Programs, Department of Biology, North Carolina State University
2011-2012         Professor, Department of Biology, North Carolina State University
2003-                 Undergraduate Coordinator, Ecology, Evolution, and Conservation Biology Concentration, NC State University
2006-2007        Sabbatical Scholar, UC-Davis; Host: Dr. Marcel Holyoak
2005-2011        Associate Professor, Department of Biology, North Carolina State University
1999-2005        Assistant Professor, Department of Zoology, North Carolina State University
1997-1999        Post-doctoral researcher, University of Minnesota, Advisor: Dave Tilman
1990-1997        Researcher, Guatemala Program, Center for Conservation Biology, Stanford University

2008          Aldo Leopold Leadership Fellow
2007          George J. and Rhoda W. Kriz Faculty Study Leave Award
2004          Outstanding Teacher Award, NC State University
2004          Outstanding Adviser Award, College of Agriculture and Life Sciences, NCSU
2003          Outstanding paper award in Landscape Ecology, for an outstanding contribution to the literature in landscape ecology  (Tewksbury, et al. 2002)
2001          Conference of Southern Graduate Schools Achievement Award for New Scholars
1993-6       National Science Foundation Predoctoral Fellowship


Leidner, A.K. and N.M. Haddad.  2011.  Combining measures of dispersal measures to identify conservation strategies in fragmented landscapes.  Conservation Biology 25:1022-1031.

Milko, L.V., N.M. Haddad, and S.L. Lance.  In press.  Dispersal via stream corridors structures populations of the endangered St. Francis’ satyr butterfly (Neonympha mitchellii francisci).  Journal of Insect Conservation

Johnson, B.L., and N.M. Haddad. 2011. Edge effects, not connectivity, determine the incidence and development of a foliar fungal plant disease. Ecology 92:1551-1558.

Sullivan, L.L., B.L. Johnson, L.A. Brudvig, and N. Haddad. 2011. Can dispersal mode predict corridor effects on plant parasites? Ecology 92:1559-1564.
Haddad, N.M., G.M. Crutsinger, K. Gross, J. Haarstad, and D. Tilman. 2011.  Plant diversity and the stability of foodwebs.  Ecology Letters 14:42-46.

Haddad, N.M., B. Hudgens, E.I. Damschen, D.J. Levey, J.L. Orrock, J.J. Tewksbury, and A.J. Weldon.  2011.  Assessing positive and negative ecological effects of corridors.  Pages 475-503 in J. Liu, V. Hull, A.T. Morzillo, and J.A. Wiens, Sources, sinks, and sustainability, Cambridge University Press, Cambridge, UK

Krosby, M., J. Tewksbury, N.M. Haddad, and J. Hoesktra.  2010.  Landscape connectivity for a changing climate.  Conservation Biology 24:1686-1689.
Leidner, A.K. and N.M. Haddad.  2010.  Natural, not urban, barriers limit dispersal of a coastal endemic butterfly.  Conservation Genetics 11:2311-2320.

Leidner, A.K., Haddad, N.M., and Lovejoy, T.E.  2010.  Does tropical forest fragmentation increase long-term variability of butterfly communities?  PLoS ONE 5(3):e9534. doi:10.1371/journal.pone.0009534

Kuefler, D., B. Hudgens, N.M. Haddad, W.F. Morris, and N. Thurgate. 2010.  The conflicting role of matrix habitats as conduits and barriers for dispersal.  Ecology 91:944-950.

Bartel, R.A., N.M. Haddad, J.P. Wright.  2010.  Ecosystem engineers maintain rare species and increase biodiversity.   Oikos 119:883-890. 

Haddad, N.M., G.M. Crutsinger, K. Gross, J. Haarstad, J.M.H. Knops, and D. Tilman.  2009.  Plant species loss decreases arthropod diversity and shifts trophic structure.   Ecology Letters 12:1029-1039

Brudvig, L.A., E.I. Damschen, J.J. Tewksbury, N.M. Haddad, and D.J. Levey.  2009.  Corridors promote biodiversity spillover into adjacent habitat.  Proceedings of the National Academy of Sciences 106:9328-9332

Wells, C.N., R.S. Williams, G.L. Walker, and N.M. Haddad.  2009.  Effects of habitat connectivity on genetic variation of the buckeye butterfly (Junonia coenia) in a landscape experiment.  Southeastern Naturalist 8:709-722

Haddad, N.M.  2009.  Principles of reserve design.  Pages 529-537 in S. Levin, editor, Princeton guide to ecology.  Princeton University Press, New Jersey

Haddad N.M.  2008.  Finding the corridor more traveled.  Proceedings of the National Academy of Sciences 105:19569-19570.

Damschen, E.I., L.A. Brudvig, N.M. Haddad, D.J. Levey, J.L. Orrock, and J.J. Tewksbury.  2008.  The movement ecology and dynamics of plant communities in fragmented landscapes.  Proceedings of the National Academy of Sciences 105:19078-19083. 

Haddad, N.M., B. Hudgens, C. Damiani, K. Gross, D. Kuefler, and K. Pollock.  2008.  Determining optimal monitoring for rare butterfly populations.  Conservation Biology 22:929-940. 

Haddad, N.M., M. Holyoak, T.M. Mata, K.F. Davies, B.A. Melbourne, and K. Preston.  2008.  Species' traits predict the effects of disturbance and productivity on diversity.  Ecology Letters 11:348-356.

Kuefler, D., N.M. Haddad, S. Hall, B. Hudgens, B. Bartel, and E. Hoffman.  2008.  Distribution, population structure, and habitat use of the endangered St. Francis' satyr butterfly, Neonympha mitchellii francisci.  American Midland Naturalist  159:298-320.

Gross, K., E.J. Kalendra, B.R. Hudgens, and N.M. Haddad.  2007.  Robustness and uncertainty in estimates of butterfly abundance from transect counts.  Population Ecology 49:191-200. 

Damschen, E.I., N.M. Haddad, J.L. Orrock, J.J. Tewksbury, and D.J. Levey.  2006.  Corridors increase plant species richness at large scales.  Science 313:1284-1286. 

Kuefler, D. and N.M. Haddad.  2006.  Local versus landscape determinants of butterfly movement behaviors.  Ecography 29:549-560.

Haddad, N.M. and J.J. Tewksbury.  2006.  Impacts of corridors on populations and communities.  Pages 390-415 in K. Crooks and M. Sanjayan, editors, Connectivity Conservation, Cambridge University Press, Cambridge, England.

Levey, D.J., B.M. Bolker, J.J. Tewksbury, S. Sargent, and N.M. Haddad.  2005.  Effects of landscape corridors on seed dispersal by birds.  Science 309:146-148.

Levey, D.J., B.M. Bolker, J.J. Tewksbury, S. Sargent, and N.M. Haddad.  2005.  Landscape corridors: Possible dangers? (response).  Science 310:779-783. 

Brinkerhoff, R.J., N.M. Haddad, and J.L. Orrock.  2005.  Corridors and olfactory predator cues affect small mammal behavior.  Journal of Mammalogy 86:662-669.   

Weldon, A.J. and N.M. Haddad.  2005.  The effects of patch shape on Indigo Buntings: evidence for an ecological trap.  Ecology 86:1422-1431.

Damschen, E.I., K.M. Rosenfeld, M. Wyer, D. Murphy-Medley, T.R. Wentworth, and N.M. Haddad.  2005.  Visibility matters: increasing knowledge of women's contributions to ecology.  Frontiers in Ecology and the Environment 3:212-219. 

Haddad, N.M. and J.J. Tewksbury.  2005.  Low quality habitat corridors as movement conduits for two butterfly species.  Ecological Applications 15:250-257. 

Haddad N.M. 2005. Butterflies of the Savannah River Site. Pp. 175-184. In J. Kilgo and J. Blake, eds, Ecology and Management of a Forested Landscape, Island Press, Washington, DC.

Haddad, N.M., D.R. Bowne, A. Cunningham, B. Danielson, D. Levey, S. Sargent, and T. Spira.  2003.  Corridor use by diverse taxa.  Ecology 84:609-615.

Bradley, K.L., E.I. Damschen, L.M. Young, D. Kuefler, S. Went, G. Wray, N.M. Haddad, J.M.H. Knops, and S.M. Louda.  2003.  Spatial heterogeneity, not visitation bias, dominates variation in herbivory.  Ecology 84:2214-2221. 

Hudgens, B.R. and N.M. Haddad.  2003.  Predicting which species will benefit from corridors in fragmented landscapes from population growth models.  The American Naturalist 161:808-820. 

Tewksbury, J.J., D.J. Levey, N.M. Haddad, S. Sargent, J.L. Orrock, A. Weldon, B.J. Danielson, J. Brinkerhoff, E.I. Damschen, and P. Townsend.  2002.  Corridors affect plants, animals, and their interactions in fragmented landscapes. Proceedings of the National Academy of Sciences 99:12923-12926.  Outstanding Paper Award in Landscape Ecology.

Sisk, T.D., and N.M. Haddad.  2002.  Incorporating the effects of habitat edges into landscape models:  Effective area models for management.  Pp. 208-240 in J. Liu and W.W. Taylor, Integrating landscape ecology into natural resource management, Cambridge University Press, Cambridge, UK.

Haddad, N.M., D. Tilman, and J.M.H. Knops.  2002.  Long-term oscillations in grassland productivity induced by drought.  Ecology Letters 5:110-120.

Haddad, N.M., D. Tilman, J. Haarstad, M. Ritchie, and J. Knops.  2001.  Contrasting effects of plant richness and composition on insect communities: a field experiment.  The American Naturalist 158:17-35.

Haddad, N.M., D.K. Rosenberg, and B.R. Noon.  2000.  On experimentation and the study of corridors.  Conservation Biology 14:1543-1545.

Haddad, N.M., J. Haarstad, and D. Tilman. 2000. The effects of long-term nutrient loading on grassland insect communities. Oecologia 124:73-84.

Haddad, N.M. 2000. Corridor length and patch colonization by a butterfly, Junonia coeniaConservation Biology 14:738-745. 

Haddad, N.M. and W.M. Hicks. 2000. Host pubescence and the behavior and performance of a butterfly, Papilio troilus (Lepidoptera). Environmental Entomology 29:299-303. 

Haddad, N.M. 1999. Corridor use predicted from behaviors at habitat boundaries. The American Naturalist 153:215-227.

Haddad, N.M. 1999. Corridor and distance effects on interpatch movements: a landscape experiment with butterflies. Ecological Applications 9:612-622. 

Haddad, N.M. and K. Baum. 1999. An experimental test of corridor effects on butterfly densities. Ecological Applications 9:623-633. 

Knops, J.M.H., D. Tilman, N.M. Haddad, S. Naeem, C.E. Mitchell, J. Haarstad, M.E. Ritchie, K.M. Howe, P.B. Reich, E. Siemann, and J. Groth. 1999.  Cascading effects of plant diversity on invasions, diseases, and insects. Ecology Letters 2:286-293.

Haddad, N.M. 1997. Do corridors influence butterfly dispersal and density?: A landscape experiment.  Ph.D. Dissertation, University of Georgia, Athens, GA.

Sisk, T.D., N.M. Haddad, and P.R. Ehrlich. 1997. Bird assemblages in patchy woodlands: modeling the effects of edge and matrix habitats.  Ecological Applications 7:1170-1180. 

Austin, G.T., N.M. Haddad, C.A. Mendez, A.E. Launer, and P.R. Ehrlich. 1996. Annotated checklist of the butterflies of the Tikal National Park area of Guatemala. Tropical Lepidoptera 7:21-37.

Mendez, C.A., T.D. Sisk, and N.M. Haddad.  1995.  Beyond birds:  multitaxonomic monitoring   programs provide a broad measure of tropical diversity.  Pages 451-456 in J.A.   Bissonette and P.R. Krausman, eds.  Integrating people and wildlife for a sustainable future.  Proceedings of the First International Wildlife Management Congress.  The Wildlife Society, Bethesda, MD.

Pulliam, H.R. and N.M. Haddad. 1994. Human population growth and the carrying capacity concept. Bulletin of the Ecological Society of America. 75:141-157.

Daily, G.C., P.R. Ehrlich, and N.M. Haddad. 1993. Double keystone bird in a keystone species complex. Proceedings of the National Academy of Sciences 90:592-594. 

2011-2015    Landscape connectivity and the movement ecology of plant and animal communities.  NSF $800,000 (co-PI with L. Brudvig, E. Damschen, D. Levey, J. Orrock, and J. Tewksbury; NCSU protion $130,000)

2011-2015    Endangered butterflies as a model system for managing source-sink dynamics. SERDP $2.4 million (co-PI with Elizabeth Crone, Bill Morris, Cheryl Schultz, Brian Hudgens, and Chris Damiani; NCSU portion $425,000).

2011-2016    IGERT: Genetic engineering and society: The case of transgenic pests. NSF $3 million (Co-PI with F. Gould, N. Haenn, B. Kinsella, A. Lloyd)
2010-    Southeast Climate Science Center. Dept. of Interior $600,000 (co-PI)

2010-2014    Renovation of the North Carolina State University Phytotron For Improved Environmental Control and BSL-3 Containment.  NSF $2 million (co-PI)

2002-2012    A series of annual grants for research on the endangered St. Francis’ satyr butterfly.  Department of Defense, Ft. Bragg, NC

2010-2014    Monitoring and recovery of Miami blue butterfly, USFWS, $77,000

2011-2014    Using landsat data to quantify the combined effects of habitat loss and climate change on West African wildlife.  NASA $30,000 (Fellowship supports student J. Wilson)

2006-2010   Effects of corridors and edges on plant populations.  National Science Foundation $480,000 (PI with Ellen Damschen, Doug Levey, and Josh Tewksbury).
2006-2010  Mapping habitat connectivity for multiple rare, threatened, and endangered species on and around military installations. SERDP $1.5 million (co-PI with Aaron Moody, Bill Morris, and Jeff Walters).
2010            Monitoring and restoration for the endangered butterfly, the St. Francis Satyr.  Department of Defense, Ft. Bragg, NC $105,000
2009            Monitoring the Long-Term Population Size and Trends of the Endangered Butterfly, the St. Francis' Satyr.  Department of Defense, Ft. Bragg, NC $105,000
2009            Use of Molecular Genetic markers to Enhance Restoration of an Endangered Species, St. Francis? Satyr Butterfly.  Department of Defense, Ft. Bragg, NC $89,000
2009            Planning Level Survey for At-Risk Amphibian Species, Year 4.  Department of Defense, Ft. Bragg, NC $32,000
2008            Research For the Conservation and Restoration of an Endangered Butterfly, the St. Francis Satyr.  Department of Defense, Ft. Bragg, NC $98,000
2008            Planning Level Survey for At-Risk Amphibian Species, Year 3.  Department of Defense, Ft. Bragg, NC $30,000
2007            Planning Level Survey for At-Risk Amphibian Species, Year 2.  Department of Defense, Ft. Bragg, NC $29,000
2007            Modeling St. Francis Satyr butterfly population and distribution trends to guide restoration efforts on Ft. Bragg.  Department of Defense, Ft. Bragg, NC $90,000
2006            Research for maintenance of St. Francis satyr butterfly population at Ft. Bragg.  Department of Defense, Ft. Bragg, NC $100,000
2006            Planning level survey for at-risk herp species.  Department of Defense, Ft. Bragg, NC $55,000
2006-2008  The impacts of habitat fragmentation on the population genetics of a rare butterfly, Atrytonopsis new species 1.  US Fish and Wildlife Service, $6,000
2005            Ongoing monitoring of St. Francis satyr butterfly populations.  Department of Defense, Ft. Bragg, NC $45,000
2005            Understanding impacts of beaver on dynamics of habitats occupied by St. Francis satyr butterfly.  Department of Defense, Ft. Bragg, NC $47,000
2005            Behavior of a rare butterfly in natural and urbanized areas: implications for dune conservation management.  SeaGrant, $4,837
2004            Optimizing long-term monitoring plans for the St. Francis Satyr.  Department of Defense, Ft. Bragg, NC $40,000
2004            Examining effects of beaver activity on St. Francis Satyr distributions.  Department of Defense, Ft. Bragg, NC $35,000
2004-6        Status and ecology of reptile and amphibian species of concern.  Department of Defense, Ft. Bragg, NC $110,000
2004            Monitoring, development, and demography of savannah plants for restoration.  U.S. Forest Service $16,000
2003            Developing techniques and protocols for monitoring St. Francis Satyr.  Department of Defense, Ft. Bragg, NC $40,000
2002            Evaluating population viability, and potential restoration of the St. Francis Satyr butterfly.  Department of Defense, Ft. Bragg, NC $35,000
1999-2003   Patches, corridors, and the dispersal of insects and plants: scaling up from local experiments to large complex landscapes.  National Science Foundation Collaborative Award $350,000
2000            NSF Research Experience for Undergraduates $4,950
2000            Faculty Research and Development Grant, NC State University $5,000
1996            The effects of landscape pattern on butterfly movement: a study of five species in experimental landscapes. U.S. Forest Service $73,800
1995-6         La aplicación de datos biologicos al    manejo de ecosistemas:  un esquema nacional para la conservación de la biodiversidad.    U.S.A.I.D.  $50,000
1995            The response of mobile animals to landscape pattern in managed habitats: a forest experiment at the Savannah River Site. SRS $16,910
1994            A forest manipulation to test the effects of corridors on animal movement and dispersal. U.S. Forest Service $33,400
1993            Sigma Xi Grant in Aid of Research $450

1997 Cedar Creek Natural History Area, University of Minnesota
1997 Iowa State University
1998 University of Minnesota
1998 Universidad de San Carlos, Guatemala
1998 North Carolina State University
1998 Iowa State University
1999 Northern Arizona University
1999 Duke University
2000 University of North Carolina
2000 North Carolina State University, Dept. of Entomology
2001 Purdue University
2001 University of Nebraska
2001 Texas A&M
2001 Appalachian State University
2001 Western Carolina University
2002 University of Virginia, Blandy Experimental Farm
2003 Virginia Tech
2003 Princeton University
2004 University of North Carolina
2004 University of Kansas
2005 Univeristy of Maryland
2005 University of Colorado-Boulder
2005 University of California-Davis
2005 National Research Council
2005 Iowa State University
2007 Stanford University
2007 Sacramento State University
2007 UC-Santa Barbara
2007 NCEAS
2007 UC-Davis
2007 Humboldt State University
2007 Duke University
2007 Eastern Carolina University
2007 University of Tennessee
2008 University of Georgia
2008 University of Alberta
2009 University of Minnesota
2009 Michigan State University
2009 Kellogg Biological Station
2009 Western Carolina University
2010 Penn State University
2010 Appalachian State University
2010 University of Montana
2010 Northwestern University
2010 Duke University
2010 University of Florida
2011 Southern Illinois University
2011 University of Missouri (Riley Lecture)
2011 University of Richmond
2011 Cornell University
2011 UNC-Greensboro

BIO 360,Ecology, North Carolina State University
BIO 495 Ecology, Evolution, and Conservation Biology Capstone
BIO 561, Conservation Ecology, North Carolina State University
ZO 624, Conserving Connectivity at Large Scales
ZO 824, Classics in Ecology, North Carolina State University
ZO 824, Professional Development and Ethics, North Carolina State University
ZO 824, Population Viability Analysis, NC State University
ZO 824, Connectivity in large landscapes, NC State University