IEMM has partnered with resource agencies and organizations around San Diego to engage in applied research in wildlife conservation, land use and resource management. Across a wide range of projects, IEMM scientists and staff provide necessary quantitative expertise, field and laboratory support. Beyond technical skills and research expertise, IEMM is a research entity that serves to coordinate and collaborate applied research throughout San Diego. Below is a selected list of our current and past projects.
- Resilient Restoration
- Southern California Montane Forest Conservation Strategy
- Connecting Wildlands and Communities
- Mule Deer Conservation and Management
- Population Modeling of Peninsular Bighorn Sheep
- Developing a Framework for Valuing Carbon Sequestration in San Diego’s Natural Lands
- Feral Pig Monitoring In San Diego County
- Climate Resilient Connectivity For The South Coast Ecoregion of California
- Planning for Wildlife Movement Across San Diego’s SR-67
- Ecological Impacts of Climate Change on a Biodiversity Hotspot
- Improving Statistical Sampling and Vegetation Monitoring
- California Least Tern Breeding Survey Analysis
- California Least Tern Monitoring and Management in San Diego County
- Using Seabirds as Sentinels of Ecosystem Health
- Hermes Copper Butterfly
- Integrated Monitoring and Management
- Landscape Connectivity within MSCP Lands: Bobcats as Indicators
- Seabird Conservation
- Habitat Use of Turtles in San Diego Bay
- Next Generation Health and Population Monitoring of Desert Tortoise
Clatterbuck, C.A., Lewison, R.L., Orben, R.A., Ackerman, J.T., Torres, L.G., Suryan, R.M., Warzybok, P., Jahncke, J., Shaffer, S.A. 2021. Foraging in marine habitats increases mercury concentrations in a generalist seabird. Chemosphere.
Schmidt, G.M.,Lewison, R.L., Swarts, H.M. 2021. Pairing long-term population monitoring and wildlife crossing structure interaction data to evaluate road mitigation effectiveness. Biological Conservation.
Conlisk, E., Haeuser, E., Flint, A., Lewison, R.L., Jennings, M.K. 2021. Pairing functional connectivity with population dynamics to prioritize corridors for Southern California spotted owls. Diversity and Distributions.
Grimes, T.M., Tinker, M.T., Hughes, B.B., Boyer, K.E., Needles, L., Beheshti, K., Lewison, R.L. 2020. Characterizing the impact of recovering sea otters on commercially important crabs in California estuaries. Marine Ecology Progress Series.
Zeller, K.A., Lewison, R.L., Fletcher, R.J., Tulbure, M.G., Jennings, M.K. 2020. Understanding the importance of dynamic landscape connectivity. Land.
Jennings, M.K., Zeller, K.A., Lewison, R.L. 2020. Supporting adaptive connectivity in dynamic landscapes. Land.
Jennings, M.K., Haeuser, E., Foote, D., Lewison, R.L., Conlisk, E. 2020. Planning for dynamic connectivity: operationalizing robust decision-making and prioritizing across landscapes experiencing climate and land-use change. Land.
Verutes, G.M., Johnson, A.M., Caillat, M., Ponnampalam, L.S., Peter, C., Vu, L., Junchompoo, C., Lewison, R.L., Hines, E.M. 2020. Using GIS and stakeholder involvement to innovate marine mammal bycatch risk assessment in data-limited fisheries. PLOS One.
Chen, H.L, Lewison, R.L., An, L., Yang, S., Shi, L., Zhang, W. 2020 Understanding the direct and indirect effects of payment for ecosystem services on resource use and wildlife. Anthropocene.
Lemons, G.E., Lewison, R.L., Seminoff, J.A., Coppenrath, C.M., Popp, B.N. 2020. Nitrogen isotope fractionation of amino acids from a controlled study on the green turtle (Chelonia mydas): Expanding beyond Glx/Phe for trophic position. Marine Biology.
Hines, E., Ponnampalam, L.S., Junchompoo, C., Peter, C., Vu, L., Huynh, T., Caillat, M., Johnson, A.F., Minton, G., Lewison, R.L., Verutes, G.M. 2020. Getting to the bottom of bycatch: a GIS-based toolbox to assess the risk of marine mammal bycatch. Endangered Species Research. https://doi.org/10.3354/esr01037
Schmidt, G.M., Lewison, R.L., Swarts, H.M. 2020. Identifying landscape predictors of ocelot road mortality. Landscape Ecology. https://doi.org/10.1007/s10980-020-01042-4
Dundas, S.J., Levine, A.S., Lewison, R.L., Samhouri, J.F., White, C., Galloway, A.W.E., Hazen, E.L., Spalding,A., Stier, A., Doerr, A.N., Garza, C., Hill, T., Padilla-Gamino, J., White, J.W., 2020. Integrating Oceans into Climate Policy: Any Green New Deal Needs a Splash of Blue. Conservation Letters, in press.
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Chen, H.L., Lewison, R.L., An, L., Tsai, Y.H., Stow, D., Shi, L., Yang, S. 2020. Assessing the effects of payments for ecosystem services programs on forest structure and species biodiversity. Biodiversity and Conservation. https://doi.org/10.1007/s10531-020-01953-3
Moleón, M., J. A. Sánchez-Zapata, J. A. Donázar, E. Revilla, B. Martín-López, C. Gutiérrez-Cánovas, W. M. Getz, Z. Morales-Reyes, A. Campos-Arceiz, L. B. Crowder, M. Galetti, M. González-Suárez, F. He, P. Jordano, R. Lewison, R. Naidoo, N. Owen-Smith, N. Selva, J.-C. Svenning, J. L. Tella, C. Zarfl, S. C. Jähnig, M. W. Hayward, S. Faurby, N. García, A. D. Barnosky, and K. Tockner. 2020. Rethinking megafauna. Proceedings of the Royal Society B: Biological Sciences 287:20192643.
Smith, J. G., M. K. Jennings, E. E. Boydston, K. R. Crooks, H. B. Ernest, S. P. D. Riley, L. E. K. Serieys, and R. L. Lewison. 2020. Carnivore population structure across an urbanization gradient : a regional genetic analysis of bobcats in southern California. Landscape Ecology 4.
– 2019 –
Snavely et al. 2019. Mapping vegetation community types in a highly-disturbed landscape: Integrating hierarchical object-based image analysis with lidar-derived canopy height data, International Journal of Remote Sensing.
Trego, M.L., Whitehead, A., Kellar, N.M., Lauf, M., Lewison, R.L. 2019. Tracking transcriptomic responses to endogenous and exogenous variation in cetaceans in the Southern California Bight. Conservation Physiology 7(1): doi:10.1093/conphys/coz018.
Trego, M.L., Hoh, H., Kellar, N.M., Meszaros, S., Robbins, M.N., Dodder, N.G, Whitehead, A., Lewison, R.L. 2019. Comprehensive Screening Links Halogenated Organic Compounds with Testosterone Levels in Male Delphinus delphis from the Southern California Bight. Environmental Science & Technology 52(5):3101-3109.
Lewison, R.L., Johnson, A.F., Gan, J.B., Pelc, R., Westfall, K., Helvey, M. 2019. Accounting for unintended consequences of resource policy: Connecting research that addresses displacement of environmental impacts. Conservation Letters 2019:e12628.
– 2018 –
Lippitt et al. 2018. Multitemporal MESMA for Monitoring Herbaceous and Other Vegetation Growth Forms in Southern California Shrublands, International Journal of Remote Sensing, 9 (3):655-683
Jennings et al. San Diego State University. San Diego County Ecosystems: Ecological Impacts of Climate Change on a Biodiversity Hotspot. California’s Fourth Climate Change Assessment, California Energy Commission.
Gudino-Elizondo et al. 2018. Modelling ephemeral gully erosion from unpaved urban roads: Equifinality and implications for scenario analysis
Zeller et al. 2018. Are all data types and connectivity models created equal? Validating common connectivity approaches with dispersal data. Diversity and Distributions
– 2017 –
Jennings and Zeller 2017. Comprehensive multi-species connectivity assessment and planning for the Highway 67 region of San Diego County, California. Final Report prepared for SANDAG Agreement 5004388, Task Order 3. 135 p.
Beland et al. 2017. Oiling accelerates loss of salt marshes, southeastern Louisiana
Tredick et al. 2017. A Rubric to Evaluate Citizen Science Programs for Long-Term Ecological Monitoring
– 2016 –
Jennings and McCreary 2016. An Overview of San Diego County’s Ongoing Feral Pig Eradication Project. Proceedings of the 27th Vertebrate Pest Conference, Newport Beach, CA
Uyeda, K., D. Stow, J. O’Leary, I. Schmidt and P. Riggan, 2016. Spatial Variation of Fuel Loading in Chaparral Within Stands of Varying Ages, Applied Vegetation Science, 19: 267-279.
Rachels et al. 2016. Chaparral Recovery Following a Major Fire with Variable Burn Conditions, International Journal of Remote Sensing, 37: 3836-3883
Storey et al. 2016. Assessing postfire recovery of chamise chaparral using multi-temporal spectral vegetation index trajectories derived from Landsat imagery, Remote Sensing of Environment, 183: 53-64.
– 2015 –
– 2014 –
– 2013 –
Hamada, Y. D. Stow, D. Roberts, J. Franklin, and P. Kyrakidis, 2013. Assessing and Monitoring Semi-arid Shrublands Using Object-based Image Analysis and Multiple Endmember Spectral Mixture Analysis, Environmental Monitoring and Assessment, 185: 3173
– 2012 –
– 2011 –
Deutschman and Strahm 2011. Four years of vegetation monitoring on the Irvine Ranch open space easements in central Orange County, CA.
Komoroske et al. 2011. Pollutants and the health of green sea turtles resident to an urbanized estuary in San Diego, CA. Chemosphere
Lewison et al. 2011. Chemical Analysis of threatened and endangered species in San Diego
Lewison et al. 2011. Identifying critical habitat for an endangered species in San Diego Bay
– 2010 –
Hamada et al. 2010. Quantifying Biological Integrity of California Sage Scrub Communities Using Plant Life-form Cover. Journal of Mediterranean Ecology, 10: 19-32.
Biggs et al. 2010. Land cover following rapid urbanization on the US-Mexico border: Implications for conceptual models of urban watershed processes. Landscape and Urban Planning
Deutschman et al. 2010. Initial evaluation of the status of the Hermes copper (Lycaena hermes)
– 2009 –
Deutschman and Strahm 2009. Improving statistical sampling and vegetation monitoring for TNC easements in central Orange County: Year 2
Deutschman and Strahm 2009. Improving statistical sampling and vegetation monitoring for the San Diego MSCP
– 2008 –
Deutschman et al. 2008. Improving statistical sampling and vegetation monitoring for open space in central Orange County
– 2007 –
Stow et al. 2007. Monitoring shrubland habitat changes through object-based change identification with airborne multispectral imagery Remote Sensing of Environment