Search for people, departments, or email addresses.

« Back To Search Results

  Steve I Lonhart

Steve I Lonhart

Research Associate

 

Physical & Biological Sciences Division

Institute of Marine Sciences

Research Associate

Staff

Researcher

Remote work location
See below

SWFSC FED Lab

Long Marine Lab

Dr. Lonhart has worked as a marine ecologist for NOAA's Monterey Bay National Marine Sanctuary and as a non-paid Research Associate for the Institute of Marine Sciences since 2002. As the senior SIMoN Scientist, Steve is responsible for maintaining SIMoN's research and monitoring programs and implementing SIMoN's scientific goals to integrate existing monitoring programs within the sanctuary; supporting research and monitoring programs that address important resource management issues; and disseminating information to resource managers, researchers, educators, and the general public. He is also involved in several research and monitoring projects, including studies on the effectiveness of state marine protected areas, the ecological effects of invasive species, and the impact of nearshore processes of burial and exhumation on subtidal benthic communities.

Steve has a Bachelor of Science degree in Biology from UCLA, a Master of Science degree in Biology from California State University Long Beach, and a Doctorate in Biology from UC Santa Cruz. Though he has several interests in marine ecology, his scientific research has focused on invasion biology, kelp forest ecology, and marine invertebrate natural history, with an emphasis on marine gastropods.

Kelp forest ecology, invasion biology, biogeography and marine invertebrates.

Research and monitoring in marine protected areas of central California, ecological consequences of biological invasions in central California harbors and adjacent open coast, and geogrpahic range expansions/contractions associated with climate change.

Tolimieri, N., A.O. Shelton, J.F. Samhouri, C.J. Harvey, B.E. Feist, G.D. Williams, K.S. Andrews, K.E. Frick, S.I. Lonhart, G. Sullaway, O. Liu, H.D. Berry, and J. Waddell.  2023.  Changes in kelp forest communities off Washington, USA, during and after the 2014–2016 marine heatwave and sea star wasting syndrome.  Marine Ecology Progress Series. doi.org/10.3354/meps14220.

 

Malone, D.P., K. Davis, S.I. Lonhart, A. Parsons-Field, J.E. Caselle, and M.H. Carr. 2022. Large-scale, multidecade monitoring data from kelp forest ecosystems in California and Oregon (USA). Ecology e3630.  doi.org/10.1002/ecy.3630

 

Hamilton, S.L., V.R. Saccomanno, W.N. Heady, A.L. Gehman, S.I. Lonhart, R. Beas-Luna, F.T. Francis, L. Lee, L. Rogers-Bennett, A.K. Salomon, and S.A. Gravem. 2021. Disease-driven mass mortality event leads to widespread extirpation and variable recovery potential of a marine predator across the eastern Pacific. Proceedings of the Royal Society B: Biological Sciences. 288: 20211195.  doi/10.1098/rspb.2021.1195

 

Yates, D.C., S.I. Lonhart, and S.L. Hamilton. 2020. Effects of marine reserves on predator-prey interactions in central California kelp forests. Marine Ecology Progress Series, 655:139-155.

 

Lonhart, S.I., R. Jeppesen, R. Beas-Luna, J.A. Crooks, and J. Lorda. 2019. Shifts in the distribution and abundance of coastal marine species along the eastern Pacific Ocean during marine heatwaves from 2013 to 2018. Marine Biodiversity Records. doi.org/10.1186/s41200-019-0171-8

 

Rhoades, O.K., S.I. Lonhart, and J.J. Stachowicz. 2019. Human-induced reductions in fish predator boldness decrease their predation rates in kelp forests. Proceedings of the Royal Society B: Biological Sciences. 286(1900):20182745. doi.org/10.1098/rspb.2018.2745

 

Sadowski, J.S., J.A. Gonzalez, S.I. Lonhart, R. Jeppesen, T.M. Grimes, and E.D. Grosholz. 2018. Temperature-induced range expansion of a subtropical crab along the California coast. Marine Ecology.  e12528. doi-org.oca.ucsc.edu/10.1111/maec.12528

 

Rhoades, O.K., S.I. Lonhart, and J.J. Stachowicz. 2018. Fished species uniformly reduced escape behaviors in response to protection. Biological Conservation, 226:238-246.

 

Zabin, C.J., M. Marraffini, S.I. Lonhart, L. McCann, L. Ceballos, C. King, J. Watanabe, J.S. Pearse, and G.M. Ruiz. 2018. Non native species colonization of highly diverse, wave swept outer coast habitats in Central California. Marine Biology, 165:31.

 

Figurski, J.D., J. Freiwald, S.I. Lonhart, and C.D. Storlazzi. 2016. Seasonal sediment dynamics shape temperate bedrock reef communities. Marine Ecology Progress Series, 552:19-29.

 

Storlazzi, C.D., T.A. Fregoso, J.D. Figurski, J. Freiwald, S.I. Lonhart, and D.P. Finlayson. 2013. Burial and exhumation of temperate bedrock reefs as elucidated by repetitive high-resolution sea floor sonar surveys: spatial patterns and impacts to species’ richness and diversity. Continental Shelf Research, 55:40-51.

 

Lonhart, S.I. 2009. Natural and climate change mediated invasions. In: G. Rilov, J.A. Crooks (eds). Biological Invasions of Marine Ecosystems: Patterns, Effects, and Management. Ecological Studies 204, Springer-Verlag Berlin Heidelberg. p 57-69.

 

Ritter, A.F., K. Wasson, S.I. Lonhart, R.K. Preisler, A. Woolfolk, K.A. Griffith, S. Connors, and K.W. Heiman. 2008. Ecological signatures of anthropogenically altered tidal exchange in estuarine ecosystems. Estuaries and Coasts, 31:554-571

 

Zacherl, D., S.D. Gaines, and S.I. Lonhart. 2003. The limits to biogeographical distributions: insights from the northward range extensions of the marine snail, Kelletia kelletii (Forbes, 1852). Journal of Biogeography, 30: 913-924

 

Lonhart, S.I. and Tupen, J.W.  2001.  Recent range extensions of 12 marine invertebrates: the role  of El Niño and other mechanisms in southern and central California.  Bulletin of the Southern California Academy of Sciences, 100(3): 238-248

If you have the proper permissions, you can edit this entry

This campus directory is the property of the University of California at Santa Cruz. To protect the privacy of individuals listed herein, in accordance with the State of California Information Practices Act, this directory may not be used, rented, distributed, or sold for commercial purposes. For more details, please see the university guidelines for assuring privacy of personal information in mailing lists and telephone directories. If you have any questions please contact the ITS Support Center.