NICK M. HADDAD
William Neal Reynolds Distinguished Professor
Department of Biology
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
1997 Ph.D., Ecology, University of Georgia;
Advisor: Ron Pulliam
1991 B.S., Biology with honors, Stanford
University; Thesis Advisor: Paul Ehrlich
William Neal Reynolds Distinguished
Professor, Department of Biology, North Carolina State University
Director of Graduate Programs, Department
of Biology, North Carolina State University
Department of Biology, North Carolina State University
Undergraduate Coordinator, Ecology, Evolution, and Conservation
Biology Concentration, NC State University
Sabbatical Scholar, UC-Davis; Host: Dr. Marcel Holyoak
2005-2011 Associate Professor,
Department of Biology, North Carolina State University
Professor, Department of Zoology, North Carolina State University
researcher, University of Minnesota, Advisor: Dave Tilman
Guatemala Program, Center for Conservation Biology, Stanford
2008 Aldo Leopold
2007 George J. and Rhoda W.
Kriz Faculty Study Leave Award
Outstanding Teacher Award, NC State University
Outstanding Adviser Award, College of Agriculture and Life Sciences,
Outstanding paper award in Landscape Ecology, for an outstanding
contribution to the literature in landscape ecology
(Tewksbury, et al. 2002)
Conference of Southern Graduate Schools Achievement Award for New
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
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.
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
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
Haddad, N.M., B. Hudgens, C. Damiani, K. Gross, D. Kuefler, and K.
Pollock. 2008. Determining optimal monitoring for rare
butterfly populations. Conservation
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
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
Levey, D.J., B.M. Bolker, J.J. Tewksbury, S. Sargent, and N.M.
Haddad. 2005. Landscape corridors: Possible dangers?
Brinkerhoff, R.J., N.M. Haddad, and J.L. Orrock. 2005.
Corridors and olfactory predator cues affect small mammal
behavior. Journal of
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
Haddad, N.M. and J.J. Tewksbury. 2005. Low quality
habitat corridors as movement conduits for two butterfly
Haddad N.M. 2005. Butterflies of the Savannah River Site. Pp.
175-184. In J. Kilgo and J. Blake, eds, Ecology
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
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
Hudgens, B.R. and N.M. Haddad. 2003. Predicting which
species will benefit from corridors in fragmented landscapes from
population growth models. The
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
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,
Haddad, N.M., D. Tilman, and J.M.H. Knops. 2002.
Long-term oscillations in grassland productivity induced by
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
Haddad, N.M., D.K. Rosenberg, and B.R. Noon. 2000. On
experimentation and the study of corridors. Conservation Biology
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 coenia.
Haddad, N.M. and W.M. Hicks. 2000. Host pubescence and the behavior
and performance of a butterfly, Papilio
troilus (Lepidoptera). Environmental
Haddad, N.M. 1999. Corridor use predicted from behaviors at habitat
boundaries. The American
Haddad, N.M. 1999. Corridor and distance effects on interpatch
movements: a landscape experiment with butterflies. Ecological Applications
Haddad, N.M. and K. Baum. 1999. An experimental test of corridor
effects on butterfly densities. Ecological
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
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
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
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
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
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).
Monitoring and restoration for the endangered butterfly, the St.
Francis Satyr. Department of Defense, Ft. Bragg, NC $105,000
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
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
Level Survey for At-Risk Amphibian Species, Year 3. Department
of Defense, Ft. Bragg, NC $30,000
Level Survey for At-Risk Amphibian Species, Year 2. Department
of Defense, Ft. Bragg, NC $29,000
Modeling St. Francis Satyr butterfly population and distribution
trends to guide restoration efforts on Ft. Bragg. Department
of Defense, Ft. Bragg, NC $90,000
for maintenance of St. Francis satyr butterfly population at Ft.
Bragg. Department of Defense, Ft. Bragg, NC $100,000
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
monitoring of St. Francis satyr butterfly populations.
Department of Defense, Ft. Bragg, NC $45,000
impacts of beaver on dynamics of habitats occupied by St. Francis
satyr butterfly. Department of Defense, Ft. Bragg, NC $47,000
of a rare butterfly in natural and urbanized areas: implications for
dune conservation management. SeaGrant, $4,837
long-term monitoring plans for the St. Francis Satyr.
Department of Defense, Ft. Bragg, NC $40,000
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
development, and demography of savannah plants for
restoration. U.S. Forest Service $16,000
techniques and protocols for monitoring St. Francis Satyr.
Department of Defense, Ft. Bragg, NC $40,000
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
Research Experience for Undergraduates $4,950
Research and Development Grant, NC State University $5,000
effects of landscape pattern on butterfly movement: a study of five
species in experimental landscapes. U.S. Forest Service $73,800
aplicación de datos biologicos al manejo de
ecosistemas: un esquema nacional para la conservación
de la biodiversidad. U.S.A.I.D. $50,000
response of mobile animals to landscape pattern in managed habitats:
a forest experiment at the Savannah River Site. SRS $16,910
forest manipulation to test the effects of corridors on animal
movement and dispersal. U.S. Forest Service $33,400
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 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
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
ZO 824, Population Viability Analysis, NC State University
ZO 824, Connectivity in large landscapes, NC State University