Wallace Meyer

Director of the Bernard Field Station and Associate Professor of Biology
With Pomona Since: 2012
  • Expertise


    Wallace Meyer’s research explores the fields of conservation biology, invasion biology, biogeography and ecology, including aspects of population, community and ecosystem ecology. Currently, his main research interest is in understanding how and why the species composition of local biotas are changing, and how such changes directly and indirectly affect ecosystem-level processes and properties.

    As Director of the The Claremont Colleges’ Bernard Biological Field Station, his work is also focused on the preservation and restoration of coastal sage scrub ecosystems.

    Research Interests

    How and why the species composition of local biotas are changing, and how such changes directly and indirectly affect ecosystem-level processes and properties

    Areas of Expertise


    • Conservation biology
    • Invasion Biology
    • Biogeography


    • Preservation and Restoration of Coastal Sage Scrub Ecosystems
  • Work


    * denotes Pomona students

    Dipman*, M. M., and W. M. Meyer III. 2019. Type conversion from native California sage scrub to non-native grassland accelerates decomposition processes. Applied Soil Ecology 144: 68-71.

    Caspi*, T., L. A. Hartz*, A. E. Soto Villa*, J. A. Loesberg*, C. R. Robins, and W. M. Meyer III. 2019. Impacts of invasive annuals on soil carbon and nitrogen storage in southern California depend on the identity of the invader. Ecology and Evolution 9: 4980-4993.

    Litle*, J. W., L. H. Quon, M. L. Antill, E. J. Questad, and W. M Meyer III. 2019. Vertebrate herbivory on shrub seedlings in California sage scrub: important but understudied interactions. Plant Ecology 4: 523-528.

    Yeung, N. W., W. M. Meyer, III, C. T. Tran, J. R. Kim, T. J. Skelton, R. H. Cowie, and K. A. Hayes. 2019. High elevation horticultural facilities in Hawaii represent a significant threat to native biodiversity. Biological Invasions 21: 1557-1566.

    Staubus*, W. J., S. Bird*, S. Meadors*, W. M. Meyer III. 2019. Distributions of invasive arthropods across heterogeneous urban landscapes in southern California: aridity as a key component of ecological resistance. Insects 10: 29.

    Hernández, E., E. J. Questad, W. M. Meyer III, and K. N. Suding. 2019. The effects of nitrogen deposition and invasion on litter and fuel dynamics in California grasslands. Journal of Arid Ecosystems 162: 35-44.

    Caspi*, T., L. Estrada*, A. V. Dowling*, E. Su*, M. Leshchinskiy*, A. R. O. Cavalcanti, E. J. Crane, C. R. Robbins, and W. M. Meyer III. 2018. Carbon and nitrogen in the topsoils of Inceptisols and Mollisols under native sage scrub and non-native grasslands in southern California. Geoderma Regional 14: e00172.

    Adams*, T. A., J. W. Staubus* and W. M. Meyer III. 2018. Fire impacts on ant assemblages in California sage scrub. Southwestern Entomologist 43: 323-334.

    Spear*, D. M., E. S. Boyd*, T. A. Adams*, M. M. Dipman*, J. W. Staubus* and W. M. Meyer III. 2017. The effects of development, type conversion, and fire on low-elevation California spider assemblages. Invertebrate Biology 136: 134-145.

    Meyer, W.M., III, N. W. Yeung, J. Slapcinsky, and K. A. Hayes. 2017. Two for one: inadvertent introduction of Euglandina species during a failed bio-control attempt. Biological Invasions 19: 1399-1405.

    Curry, P.A., N.W. Yeung, K.A. Hayes, W.M. Meyer III, A.D. Taylor and R.H. Cowie. 2016. "Rapid range expansion of a predator and its impact on endemic Hawaiian land snails." Biological Invasions 18: 1769-1780.

    Wheeler*, M. M., M. M. Dipman*, T. A. Adams*, A. V. Runia, C. R. Robins, and W. M. Meyer III. 2016. Carbon and nitrogen storage in California sage scrub and non-native grasslands. Journal of Arid Ecosystems 129: 119-125.

    Meyer, W. M. III, J. Eble, K. Franklin, R. B. McManus*, S. L. Brantley, J. Henkel*, P. E. Marek, W. E. Hall, C. A. Olson, R. McInroy*, E. M. Bernal-Loaiza*, R. C. Brusca and W. Moore. 2015. Ground-dwelling arthropod communities of a sky island mountain range in southeastern Arizona, USA: obtaining a baseline for assessing the effects of climate change. PLoS ONE 10(9): e0135210.

    Staubus*, W. J., E. S. Boyd*, T. A. Adams*, D. M. Spear*, M. M. Dipman* and W. M. Meyer III. 2015. Ant communities in native sage scrub, non-native grassland, and suburban habitats in Los Angeles County, USA: conservation implications. Journal of Insect Conservation 19: 669-680.

    Meyer, W.M., III, D. T. A. Gary, N. W. Yeung, C. Dirks, K. Leung, J. A. Léon*, D. T. B. Ressler*, P. A. Curry and K. A. Hayes. 2014. Native arboreal land snails in the Mt. Kaala Natural Area Reserve, Oahu, Hawaii, have similar plant preferences: implications for conservation. Journal of Molluscan Studies 80: 469-472.   

    Durkan, T. H., N. W. Yeung, W. M. Meyer III, K. A. Hayes, and R. H. Cowie. 2013. Evaluating the efficacy of land snail survey techniques in Hawaii: implications for conservation throughout the Pacific. Biodiversity and Conservation 22: 3223-3232.

    Meyer, W. M., III, R. Ostertag, and R. H. Cowie. 2013. Influence of terrestrial molluscs on litter decomposition and nutrient release in a Hawaiian rainforest. Biotropica 45: 719-720. November 2013 editor’s choice

    Brusca R. C., J. Wiens, W. M. Meyer III, J. Eble, K. Franklin, J. T. Overpeck, and W. Moore. 2013. Dramatic response to rapid climate change in the Southwest: Robert Whittaker’s 1963 Santa Catalina Mountains plant transect revisited. Ecology and Evolution 3: 3307-3319.

    Moore, W., W. M. Meyer III, J. Eble, K. Franklin, J. Wiens, and R. C. Brusca. In Press. Introduction to the Arizona Sky Island Arthropod Project (ASAP): Systematics, Biogeography, Ecology, and Population Genetics of Arthropods of the Madrean Sky Islands. Proceedings of the Madrean Archipelago Biodiversity Assessment Conference

    Meyer, W. M., III. 2012. Native Hawaiian succineids prefer non-native ginger (Hedychium spp.) plant species in the Kohala Mountains, Hawaii: conservation ramifications. American Malacological Bulletin 30:147-151.

    Meyer, W. M., III, and R. H. Cowie. 2011. Distribution, movement and micro-habitat use of the introduced predatory snail Euglandina rosea in the Waianae Mountains, Oahu: implications for management. Invertebrate Biology 130:325-333.

    Meyer, W. M., III, and N. Yeung. 2011. Trophic relationships among molluscs and other invertebrates in a Hawaiian rainforest based on carbon and nitrogen isotopic ratios. Journal of Tropical Ecology 27:441-445.

    Meyer, W. M., III, R. Ostertag, and R. H. Cowie. 2011. Macro-invertebrates accelerate litter decomposition and nutrient release in Hawaii. Soil Biology and Biochemistry 43:206-211.

    Meyer, W. M., III, and R. H. Cowie. 2010. Feeding preferences of two predatory snails introduced to Hawaii and their conservation implications. Malacologia 53:135-144.

    Meyer, W. M., III, and R. H. Cowie. 2010. Invasive temperate species are a threat to tropical island biodiversity. Biotropica 42:732-738.

    Meyer, W. M., III, and A. Shiels. 2009. Black rat (Rattus rattus) predation on nonindigenous snails in Hawai‘i: complex management implications. Pacific Science 63:339-347.

    Cowie, R. H., K. A. Hayes, C. T. Tran, and W. M. Meyer III. 2008.  The horticultural industry as a vector for alien snails and slugs: widespread invasion in Hawaii. International Journal of Pest Management 54:267-276.

    Meyer, W. M., III, K. A. Hayes, and A. L. Meyer. 2008. Giant African snail, Achatina fulica, as a snail predator. American Malacological Bulletin 24:117-119.

    Meyer, W. M., III. 2006. Records of rare ground-dwelling land snails on Oahu. Bishop Museum Occasional Papers 88:57-58.

  • Education


    University of Hawaii

    Master of Arts
    Humboldt State University

    Bachelor of Arts
    University of California at Santa Cruz

    Professional Experience

    NIH IRACDA Postdoctoral Fellow
    University of Arizona

    Associate Professor
    College of the Redwoods

    Recent Courses Taught

    • Introductory Ecological and Evolutionary Biology with Lab