JOHN LAWRENCE MARON
ADDRESS
Division of Biological Sciences, University of Montana, Missoula, MT 59812,
Phone: 406-243-6202, Fax: 406-243-4184, e-mail: john.maron@mso.umt.edu
EDUCATION
Ph.D. U.C. Davis, Ecology.
M.S. University of North Dakota, Biology.
B.S. U.C. Davis, Renewable Resources
1996
1983
1980
PROFESSIONAL POSITIONS
Organismal Biology and Ecology Program Director,
Division of Biological Sciences, University of Montana
Professor, Biological Sciences, University of Montana.
Associate Professor, Biological Sciences, University of Montana.
Assistant Professor, Biological Sciences, University of Montana.
Assistant Professor, Botany Department, University of Washington.
Adjunct Assistant Professor, Zoology, University of Washington.
Postdoctoral Fellow, With Dr. Susan Harrison, U.C. Davis.
Museum Scientist, Bodega Marine Reserve, U.C. Davis.
Assistant Museum Scientist, Bodega Marine Reserve, U.C. Davis.
Fall 2009-Present
2009-Present
2004-2009
2002-2004
1998-2002
1999-2002
1997-1998
1996-1997
1987-1997
TEACHING
Population Biology, University of Montana (one of two instructors)
Terrestrial Plant Ecology, University of Montana.
Rocky Mountain Flora, University of Montana.
Plant-Consumer Interactions, University of Montana.
Conservation Biology, Universitat Autònoma de Barcelona
Introductory Biology, University of Montana (one of four instructors).
Trends in Plant Ecology, University of Montana (one of two instructors)
Advanced Ecology, University of Washington (one of four instructors).
General Ecology, University of Washington (one of three instructors).
Plant-Consumer Interactions, University of Washington.
Introduction to Plant Ecology, University of Washington.
Sub-Tropical Field Ecology, Universidad de Cordoba, Argentina.
Field Ecology, U.C. Bodega Marine Lab. (one of two instructors).
2009
2002-2004, 2006-2008
2005, 2007, 2009
2004, 2008
2006
2003
2003
2001
2001
1999
1998-2001
1992
1985-1991
RESEARCH GRANTS
Current
NSF, “Indirect effects of apex predators in a grassland ecosystem.”
$578,295. (Co-PI. D. Pearson).
NSF, “The role of soil microbes in plant invasions: inhibition at
home and facilitation away?” $625,000. (Co-PI: R. Callaway).
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2010-2014
2006-2010
USDA, Managed Ecosystems program, “Assessing the indirect effects
of top predators on the diversity, productivity and health of grassland
systems,” $300,000. (Co-PI: D. Pearson).
2005-2009
Previous
BLM, “Effects of top predators on grassland communities,” $11,000.
NSF, “Interacting effects of native plant diversity and resource
availability on community invasibility and invader impact,”
$368,998. (Co-PI: M. Marler).
NSF ROA, “Interacting effects of native plant diversity and resource
availability on community invasibility and invader impact,”
$19,898. (Co-PI: P. Kittelson).
USDA McIntire-Stennis program, “Effects of top predators on the
management of grassland-forest ecotones in western Montana,”
$89,942.
BLM, “Effects of top predators on grassland communities,” $11,000.
NSF, “Foxes and seabirds: the role of top-down processes in
controlling marine subsidies to a terrestrial ecosystem,”
$332,701. (Co-PIs: J. Estes and D. Croll).
NSF, “Dissertation Research: Population dynamics of an invasive
plant: Cynoglossum officinale in its native and introduced ranges,”
$12,000 (written by: Jennifer Williams)
National Parks/ESA Research Fellowship, “Assessing trophic
control of Aspen demography across spatial and temporal
scales in the Rocky Mountains.” $150,000. (PI: M. Kauffman).
NSF, “Dissertation Research: Wildlife poaching, seed dispersal,
and the functional similarity of mammalian frugivores
in Thailand,” $8,242 (written by: Jedediah Brodie)
NSF REU, “Interacting effects of native plant diversity and resource
availability on community invasibility and invader impact,” $6,000.
BLM, “Effects of top predators on grassland communities,” $5,000.
BLM, “Effects of top predators on grassland communities,” $5,000.
Montana Weed Trust, “Interacting effects of native plant diversity
and resource availability on community invasibility and invader
impact,” $14,633. (Co-PI: M. Marler).
NSF, “Invasion and subsequent biological control of St. John’s
Wort (Hypericum perforatum): rapid evolution of herbivore
resistance?” $100,000.
Missoula Weed Board, “Interacting effects of native plant diversity
and resource availability on community invasibility and invader
impact,” $6,000. (Co-PI: M. Marler).
NSF REU, “Invasion and subsequent biological control of
St. John’s Wort (Hypericum perforatum): rapid evolution of
herbivore resistance?” $6,000.
NSF REU, “Interacting effects of insect herbivory and rodent
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2008-2009
2004-2009
2005-2009
2005-2008
2007-2008
2000-2007
2005-2007
2004-2007
2005-2006
2006
2005-2006
2004-2005
2003-2004
2000-2004
2002-2003
2002-2003
granivory on plant population dynamics,” $7,000.
NSF, “Interacting effects of insect herbivory and rodent granivory
on plant population dynamics,” $283,051. (Co-PI: E Simms).
NSF REU, “Interacting effects of insect herbivory and rodent
granivory on plant population dynamics,” $5,000.
Royalty Research Fund, University of Washington, “Do biological
control targets evolve resistance/tolerance to biological control
agents?” $32,500.
2001-2002
1997-2002
2000-2001
2000-2001
FELLOWSHIPS/AWARDS/HONORS
Catalunya PIV Fellowship, Universitat Autònoma de Barcelona
2005-2006
PROFESSIONAL SERVICE
Editorial Board, American Naturalist
Review Panel Member, NSF, Ecology
External “Frontiers in Ecology” Workshop, NSF
Review Panel Member, NSF, Dissertation Improvement Grants
External Workshop, NSF, Project NEON
2007-present
2006
2006
2002
2000
INVITED SEMINARS
Estación Biológica de Doñana (EBD-CSIC), Sevilla, Spain
“Darwin Lecture Series”, Fundation La Caixa, Madrid, Spain
Guelph University
Washington State University
Miami University
Colorado State University
U.C. Davis
Indiana University
Fire Sciences Lab, U.S. Forest Service, Missoula
University of Vermont
Institute for Plant Sciences, University of Zurich
Leibniz Institute of Plant Genetics and Crop Plant Research
Université de Fribourg
Universitat Autònoma de Barcelona
“Eminent Ecologist Series”, Michigan State University
UFZ Research Institute, Halle, Germany
Plant protection meeting, Leysin, Switzerland
CABI Bioscience, Delemont Switzerland
University of Toronto Mississauga
University of Toronto
Idaho State University
University Nevada Reno
Cedar Point Biological Station, University of Nebraska
Cornell University
Bodega Marine Laboratory, U.C. Davis
3
2009
2009
2008
2008
2008
2007
2007
2007
2007
2006
2006
2006
2005
2005
2005
2005
2005
2005
2005
2005
2004
2004
2003
2003
2003
U.C. Santa Cruz
University of Montana
Native Plant Society, Seattle Chapter
Duke University
Smithsonian Environmental Research Center, Edgewater
Bodega Marine Laboratory, U.C. Davis
Universitat Autònoma de Barcelona
Simon Fraser University
U.C. Santa Cruz
University of Toronto
Sonoma State University
2002
2001
2001
2001
2001
2000
2000
2000
1997
1996
1995
INVITED CONFERENCES AND WORKSHOPS
ESA workshop, “Are invasives different?”
Invasive Species in Natural Areas Conference
Symposium on Insect-Plant Interactions (#13)
Vice-Presidential Symposium, American Society of Naturalists.
Project Baseline Workshop.
Joint U.S.-Indian Forum on Invasive Plants.
NCEAS Working Group- Natural Enemies Hypothesis.
NSF Workshop-Model Systems in Community Ecology .
USDA Conference on Biological Control of Weeds.
University of Minnesota Symposium- Evolutionary
Consequences of Invasions by Exotic Species.
ESA Symposium-Phenotypic Change in Introduced
Organisms.
U.C. Bodega Marine Laboratory colloquium- Use of Model
Systems in Ecological and Evolutionary Research.
NCEAS Workshop- Spatial and Temporal Population
Dynamics.
2009
2008
2007
2007
2007
2006
2004, 2005
2004
2004
2002
2000
1997
1996
PUBLICATIONS (Articles in Peer-Reviewed Journals; 69 total)
Williams, J.L, H. Auge, and J.L. Maron. In Press. Effects of disturbance and herbivory on invasive
plant abundance at home and abroad. Ecology.
Bricker, M., D. Pearson and J.L. Maron. In Press. Small mammal seed predation limits the
recruitment and abundance of two perennial grassland forbs. Ecology.
Maron, J.L., C.C. Horvitz and J.L. Williams. 2010. Using experiments, demography and
population models to estimate interaction strength based on transient and asymptotic dynamics.
Journal of Ecology 98: 290-301.
Colautti, R.I., J.L. Maron and S.C.H. Barrett. 2009. Common garden comparisons of native and
introduced plant populations: latitudinal clines can obscure evolutionary inference. Evolutionary
Applications 2: 187-199.
Johnson, M.T.J., A. Agrawal, J.L. Maron and J-P. Salminen. 2009. Heritability, covariation and
natural selection on 24 traits of common evening primrose (Oenothera biennis) from a field
experiment. Journal of Evolutionary Biology 22: 1295-1307.
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Brodie, J., O.E. Helmy, W.Y. Brockelman and J.L. Maron. 2009. Bushmeat poaching reduces the
seed dispersal and population growth rate of a mammal-dispersed tree. Ecological Applications
19: 854-863.
Seifert, E.K., J.D. Bever and J.L. Maron. 2009. Evidence for the evolution of reduced mycorrhizal
dependence during plant invasion. Ecology 90: 1055-1062.
Brodie, J., O.E. Helmy and W.Y. Brockelman and J.L. Maron. 2009. Functional differences within
a guild of tropical mammalian frugivores. Ecology 90:688-698.
Maron, J.L. and M. Marler. 2008. Field based competitive impacts of invaders on natives at
varying resource supply. Journal of Ecology 96: 1187-1197.
Williams, J.L., H. Auge, and J.L. Maron. 2008. Different gardens, different results: Native and
introduced populations exhibit contrasting phenotypes across common gardens. Oecologia 157:
239-248.
Maron, J.L. and M. Marler. 2008. Effects of native species diversity and resource additions on
invader impact. American Naturalist 172: S18-S33.
Kittelson, P.M., J.L. Maron and M. Marler. 2008. Native diversity and invader impact: an exotic
alters the leaf traits of two natives. Ecology 89: 1344-1351.
Maron, J.L. and M. Marler. 2007. Native plant diversity resists invasion at both low and high
resource levels. Ecology 88: 2651-2661.
Maron, J.L., S. Elmendorf and M. Vilà. 2007. Contrasting plant physiological adaptation to
climate in the native and introduced range. Evolution 61: 1912-1924.
Morris, W.F., R.A. Hufbauer, A.A. Agrawal, J.D. Bever, V.A. Borowicz, G.S. Gilbert, J.L. Maron,
C.E. Mitchell, I.M. Parker, A.G. Power, M.E. Torchin, D.P. Vázquez. 2007. Direct and
interactive effects of enemies and mutualists on plant performance: a meta-analysis. Ecology
88:1021-1029.
Agrawal, A.A., D.D. Ackerly, F. Adler, B. Arnold, C. Cáceres, D. Doak, E. Post, P. Hudson, J.
Maron, K. Mooney, M. Power, D. Schemske, J. Stachowicz, S. Strauss, M. Turner, and E.
Werner. 2007. Frontiers in population and community ecology. Frontiers in Ecology and the
Environment 5:145-152.
Maron, J.L. 2006. The relative importance of latitude matching and propagule pressure in the
colonization success of an invasive forb. Ecography 29:819-826.
Amsberry, L.K. and J.L. Maron. 2006. Effects of herbivore identity on plant fecundity. Plant
Ecology 187: 39-48.
Kauffman, M. and J.L. Maron. 2006. Influence of density-dependence and seed bank dynamics in
habitat-specific population dynamics of bush lupine, Lupinus arboreus. American Naturalist
168:454-470.
Maron, J.L. and E. Crone. 2006. Herbivory: effects on plant abundance, distribution, and
population growth. Proceedings of the Royal Society B 273:2575-2584.
Callaway, R.M. and J.L. Maron. 2006. What have exotic invasions taught us over the past twenty
years? Trends in Ecology and Evolution 21: 369-374.
Mitchell, C.E., A.A. Agrawal, J.D. Bever, G.S. Gilbert, R.A. Hufbauer, J.N. Klironomos, J.L.
Maron, W.F. Morris, I.M. Parker, A.G. Power, E.W. Seabloom, M.E. Torchin, D.P. Vázquez.
2006. Biotic interactions and plant invasions. Ecology Letters 9: 726-240.
Maron, J.L., J.A. Estes, D.A. Croll, E.M. Danner, S.C. Elmendorf, and S. Buckalew. 2006. An
introduced predator transforms Aleutian Island plant communities by disrupting spatial
subsidies. Ecological Monographs 76:3-24.
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Maron, J.L. and M. Kauffman. 2006. Habitat-specific consumer impacts on plant population
dynamics. Ecology 87:113-124.
Croll, D.A., J.L. Maron, J.A. Estes, E.M. Danner, and G.V. Byrd. 2005. Introduced predators
transform subarctic islands from grassland to tundra. Science 307:1959-1961.
Vilà, M., J.L. Maron and L. Marco. 2005. Evidence for the enemy release hypothesis in Hypericum
perforatum L. Oecologia 142:474-479.
Hierro, J., J.L. Maron and R.M. Callaway. 2005. A biogeographical approach to plant invasion
biology: The importance of studying exotics in their introduced and native range. Journal of
Ecology 93:5-15.
Maron, J.L., M. Vilà, and J. Arnason. 2004. Loss of natural enemy resistance among introduced
populations of St. John’s Wort, Hypericum perforatum. Ecology 85:3243-3253.
Maron, J.L., M. Vilà, R. Bommarco, S. Elmendorf and P. Beardsley. 2004. Rapid evolution of an
invasive plant. Ecological Monographs 74:261-280.
Umbanhowar, J., J.L. Maron and S.P. Harrison. 2003. Density dependent foraging behaviors in a
parasitoid lead to density dependent parasitism of its host. Oecologia 137:123-130.
Vilà, M., A. Gómez and J.L. Maron. 2003. Are alien plants more competitive than their native
conspecifics? A test using St. John’s Wort (Hypericum perforatum). Oecologia 137:211-215.
Callaway, R.M., A. Sala, E. Crone, J. Maron. 2003. Plant ecology textbooks: a new contender.
American Journal of Botany 90:960-964.
Rudgers, J.A. and J.L. Maron. 2003. Facilitation between coastal dune shrubs: a non-nitrogen
fixing shrub facilitates establishment of a nitrogen-fixer. Oikos 102:75-84.
Karban, R., J. Maron, G.W. Felton, G. Ervin and H. Eichenseer. 2003. Herbivore damage to
sagebrush induces resistance in wild tobacco: evidence for eavesdropping between plants.
Oikos 100:325-332.
Maron, J.L., J.K. Combs and S.L. Louda. 2002. Convergent demographic effects of insect
herbivory on related thistles in coastal vs. continental dunes. Ecology 83:3382-3392.
Karban, R. and J.L. Maron. 2002. The fitness consequences of interspecific eavesdropping between
plants. Ecology 83:1209-1213.
Kittelson, P.M. and J.L. Maron. 2001. Fine scale genetically-based differentiation of life-history
traits in the perennial shrub, Lupinus arboreus. Evolution 55:2429-2438.
Maron, J.L. and M. Vilà. 2001. Do herbivores affect plant invasion? Evidence for the natural
enemies and biotic resistance hypotheses. Oikos 95:363-373.
Maron, J.L. and R.L. Jefferies. 2001. Restoring enriched grasslands: effects of mowing on species
richness, productivity and nitrogen retention. Ecological Applications 11:1088-1100.
Maron, J.L. and E.L. Simms. 2001. Rodent limited establishment of bush lupine: Field
experiments on the cumulative effect of granivory. Journal of Ecology 89:578-588.
Maron, J.L., S. Harrison, and M.E. Greaves. 2001. Origin of an insect outbreak: escape in space or
time from natural enemies? Oecologia 126:595-602.
Maron, J.L. 2001. Intraspecific competition and subterranean insect herbivory: individual and
interactive effects on bush lupine. Oikos 92:178-186.
Harrison, S., K.J. Rice and J.L. Maron. 2001. Habitat patchiness promotes invasion by alien
grasses (Avena fatua and Bromus hordeaceus) on serpentine soil in California. Biological
Conservation 100:45-53.
Alpert, P. and J.L. Maron. 2000. Carbon addition as a countermeasure against biological invasion
by plants. Biological Invasions 2:33-40.
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Polis, G.A., D.R. Strong, G.R. Huxel, A.L.W. Sears and J.L. Maron. 2000. When is a trophic
cascade a trophic cascade? Trends in Ecology and Evolution 15:473-475.
Maron, J.L. and S.N. Gardner. 2000. Consumer pressure, seed versus safe-site limitation, and plant
population dynamics. Oecologia 124:260-269.
Harrison, S., J.L. Maron and G. Huxel. 2000. Local extinction, colonization and large-scale
patterns of fluctuation in five plants confined to serpentine seeps. Conservation Biology 14:769779.
Kittelson, P.M. and J.L. Maron. 2000. Outcrossing rate and inbreeding depression in the perennial
yellow bush lupine, Lupinus arboreus (Fabaceae). American Journal of Botany 87:652-660.
Grosholz, E.D., G.M. Ruiz, C.A. Dean, K.A. Shirley, J.L. Maron and P.G. Connors. 2000. The
impacts of a non-indigenous marine predator in a California bay. Ecology 81:1206-1224.
Maron, J.L. and R.L. Jefferies. 1999. Bush lupine mortality, altered resource availability and
alternative vegetation states. Ecology 80:443-454.
Maron, J.L. 1998. Individual and joint effects of below- and above-ground insect herbivory on
perennial plant fitness. Ecology 79:1281-1293.
Maron, J.L. and S. Harrison. 1997. Spatial pattern formation in an insect host-parasitoid system.
Science 278:1619-1621.
Maron, J.L. and E.L. Simms. 1997. Effects of seed predation on seed bank size and seedling
recruitment of bush lupine (Lupinus arboreus). Oecologia 111:76-83.
Maron, J.L. 1997. Interspecific competition and insect herbivory reduce seedling survival in bush
lupine, Lupinus arboreus. Oecologia 110:285-290.
Jefferies, R.L. and J.L. Maron. 1997. An embarrassment of riches: anthropogenic deposition of
nitrogen and community and ecosystem processes. Trends in Ecology and Evolution 12:74-78.
Strong, D.R., H.K. Kaya, A. Whipple, A. Child, S. Kraig, M. Bondonno, K. Dyer, and J.L. Maron.
1996. Entomopathogenic nematodes: natural enemies of root-feeding caterpillars on bush
lupine. Oecologia 108:167-173.
Maron, J.L. and P.G. Connors. 1996. A native nitrogen-fixing shrub facilitates weed invasion.
Oecologia 105:302-312.
Strong, D.R., J.L. Maron, and P.G. Connors. 1996. Top down from underground? The
underappreciated influence of subterranean food webs on above ground ecology. In Food Webs
(G. A. Polis and K. O. Winemiller, eds.), pp 170-175. Chapman and Hall, New York.
Strong, D.R., J.L. Maron, P.G. Connors, A. Whipple, S. Harrison, and R.L. Jefferies. 1995. High
mortality, fluctuation in numbers, and heavy subterranean insect herbivory in bush lupine,
Lupinus arboreus. Oecologia 104:85-92.
Harrison, S. and J.L. Maron. 1995. Impacts of defoliation by tussock moths (Orgyia vetusta) on the
growth and reproduction of bush lupine (Lupinus arboreus). Ecological Entomology 20:223229.
Johnson, O.W., P.G. Connors, P.L. Bruner, and J.L. Maron. 1993. Breeding ground fidelity and
mate retention in the Pacific Golden-plover. Wilson Bulletin 105:60-67.
Connors, P.G., B.J. McCaffery and J.L. Maron. 1993. Speciation in golden-plovers, Pluvialis
dominica and Pluvialis fulva: evidence from the breeding grounds. Auk 110:9-20.
Myers, J.P., M. Sallaberry A., E. Ortiz, G. Castro, L.M. Gordon, J.L. Maron, C.T. Schick, E. Tabilo,
P. Antas, and T. Below. 1990. Migration routes of New World sanderling (Calidris alba).
Auk: 107:172-180.
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Maron, J.L. and J.P. Myers. 1985. Seasonal changes in feeding success, activity patterns, and
weights of non-breeding sanderlings, (Calidris alba). Auk 102:580-586.
Maron, J.L. and J.P. Myers. 1984. An evaluation of two techniques for sexing wintering
sanderlings (Calidris alba). Journal of Field Ornithology 55:336-342.
Myers, J.P, J.L. Maron, and M. Sallaberry. 1984. Going to extremes: why sanderlings migrate to
the neotropics. Ornithological Monographs 36:520-535.
Myers, J.P., G. Castro, B. Harrington, M. Howe, J.L Maron, E. Ortiz, M. Sallaberry, C.T. Schick,
and E. Tabilo. 1984. The Pan American Shorebird Program: a progress report. Wader Study
Group Bulletin 42:26-30.
Myers, J.P., J.L. Maron, E. Ortiz T., G. Castro V., M.A. Howe, R.I.G. Morrison, and B.A.
Harrington. 1983. Rationale and suggestions for a hemispheric color-marking scheme for
shorebirds: A way to avoid chaos. Wader Study Group Bulletin 38:30-32.
Maron, J.L. 1982. Shell-dropping behavior of western gulls. Auk 99:565-569.
PUBLICATIONS (Peer-Reviewed Book Chapters)
Maron, J.L. and M. Vilà. 2008. Exotic plants in an altered enemy landscape: effects on enemy
resistance. Pages 280-295 In: Specialization, Speciation and Radiation: the Evolutionary
Biology of Herbivorous Insects (Kelley J. Tilmon, Ed.). University of California Press,
Berkeley.
MANUSCRIPTS IN REVIEW
Bricker, M. and J.L. Maron. In Review. Seed predation lowers population growth rate in a longlived perennial forb (Lithospermum ruderale). Ecology.
Maron, J.L., D.E. Pearson and R. Fletcher Jr. In Review. Large-scale predator removal has variable
effects on a mid-latitude rodent community. Ecology
Maron, J.L., M. Marler, J. Klironomos, and C. Cleveland. In Review. Soil pathogens contribute to
the positive plant diversity-productivity relationship. Ecology.
MANUSCRIPTS IN PREPARATION
Maron, J.L. and D.E. Pearson. Effects of large-scale predator exclusion on deer mice (Peromyscus
maniculatus) foraging behavior. For Oikos.
GRADUATE ADVISING
Current
Ph.D. students: Jennifer Palladini, Elliott Parsons, Sarah Pinto.
MS students: Lauren Priestman
Past
Lindsay Amsberry, MS 2003, Jedediah Brodie, Ph.D. 2007, Jennifer Williams, Ph.D. 2008, Mary
Bricker, Ph.D. 2009.
Postdoctoral Fellows, Past
Matthew Kauffman, Currently Assistant Co-Op Leader, USGS, University of Wyoming.
Riccardo Bommarco, Currently Swedish University of Agricultural Sciences, Uppsala, Sweden.
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