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Publications & Presentations

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Scientific Publications

Published Papers

Bergsma, G.S. (2012) “Mutualists alter coral susceptibility and response to biotic disturbance through cascading trait-mediated indirect interactions.” Coral Reefs. 31(2): 461-469. DOI: 10.1007/s00338-011-0861-0

Bergsma, G.S. (2012) “Coral mutualists enhance fish abundance and diversity through morphology-mediated facilitation cascade.” Marine Ecology Progress Series. 451: 151-161. DOI: 10.3354/meps09615

Bergsma, G.S. & C.M. Martinez (2011) “Mutualist-induced morphological changes enhance growth and survival of corals.” Marine Biology. 158(10): 2267-2277. DOI:10.1007/s00227-011-1731-6

Bergsma, G.S. (2009) “Tube-dwelling coral symbionts induce significant morphological change in Montipora.” Symbiosis. 49: 143-150. DOI: 10.1007/s13199-009-0047-5

Bergsma G.S. (2009) Ecological effects of finger-forming coral symbionts. Ph.D. Dissertation. Ecology, Evolution and Marine Biology, University of California, Santa Barbara. 131pp. ISBN: 9781109608151

Published Data

Bergsma, G.S. (2010) Moorea Coral Reef LTER: Coral Reef: Sand Flat Sampling: Sand Infaunal Surveys. knb-lter-mcr.5001.7 (

Field Guides

Otter Guide to Common Forms of Marine Plankton

Moorea Coral Reef Long Term Ecological Research Program Research Field Trip Guide

Field Guide to the Birds of the Central California Coast

Field Guide to the Wetland Birds of Central California

Guide to PRBO Study Species of SE Farallon Island

Seabirds and Marine Mammals of SE Farallon Island

Invited Talks & Seminars

Bergsma, G.S., “An amphipod’s place: discovering how one species affects a coral reef,” Invited talk for the Monterey Bay Aquarium Seminar Series, May 2010.

Bergsma, G.S., “Interaction Cascades: a case study in how direct and indirect effects of a coral mutualist propagate through a reef,” Invited talk for the UCSB Ecology, Evolution and Marine Biology Seminar Series, Nov. 2009

Bergsma, G.S., “Community Cascades: a case study in how direct and indirect effects propagate through a system,” Invited talk for the UW Friday Harbor Laboratories Seminar Series, Nov. 2007

Bergsma, G.S., “Effects of Mutualistic Tube-dwelling Amphipods on Corals,” Invited talk at the Taiwan National Museum of Marine Biology and Aquarium, Feb. 2007

Bergsma, G.S., “Comparison of Tube-dwelling Symbiotic Amphipods of Moorea and Taiwan,” Seminar given at the NMMBA Polyp Lab Meeting, Feb. 2007

Conference Presentations

Bergsma, G.S., “With a little help from the little guy: symbiosis on the coral reef,” National Association of Interpreters Certified Interpretive Guide Training Workshop, Mar. 2010

Bergsma, G.S., “Comparison of the Impacts of Echinoderms on Foundation Species in Temperate and Tropical Reefs,” Poster presented at the International Temperate Reef Symposium, Jan. 2009

Bergsma, G.S., “The Effect of Symbiont Induced Structure on Crown-of-Thorns Prey Choice,” MCR LTER All Investigator Meeting, Nov. 2008

Bergsma, G.S., “Montipora as Fish Habitat in Moorea: Quality of Corals as Fish Refuge,” Poster Presented at the MCR LTER Graduate Student Meeting, Nov. 2008

Bergsma, G.S., “Mutualist Induced Coral Structure Provides Habitat for Reef Fish,” UCSB Ecology, Evolution and Marine Biology Graduate Student Symposium, Feb. 2008

Bergsma, G.S., “Mutualist Induced Coral Structure Provides Habitat for Reef Fish,” Western Society of Naturalists Annual Meeting, Nov. 2007

Gowan, J.C., G.S. Bergsma & A.J. Brooks, “Secondary Effects of Acanthaster Planci Predation on Survival of Resident Damselfish,” Poster presented at the WSN Annual Meeting, Nov. 2007 (Awarded WSN Best Poster Award)

Bergsma, G.S., “Mutualistic Tube-Dwelling Amphipods Protect Coral from Predators,” Western Society of Naturalists Annual Meeting, Nov. 2006 (Awarded WSN Mia Tegner Award for Best Student Presentation)

Bergsma, G.S., “Mutualistic Tube-Dwelling Amphipods Enhance Growth in Corals,” MCR LTER Scientist Meeting, Nov. 2006

Bergsma, G.S., “Coral Mutualist Induced Morphological Defense from Echinoid Predators,” Poster Presented at the NSF LTER Annual Scientists Meeting, Sep. 2006

Bergsma, G.S., “Symbionts Reduce Coral Susceptibility to Predation,” UCSB Ecology, Evolution and Marine Biology Graduate Student Symposium, Feb. 2006

Bergsma, G.S., “Ecological Significance of Tube-dwelling Amphipods,” MCR LTER Scientist Meeting, Dec. 2005

Bergsma, G.S., "Comparison of Afferent Branchial Arteries of Three Sharks," Scripps Institution of Oceanography Undergraduate Research Conference, Aug. 2000

Steele, W.P. and Bergsma, G.S., “Rapid Alert for Cascadia Earthquakes,” Poster Presented at the Seismological Society of America Annual Meeting, Apr. 1999

Bergsma, G.S. and P. Von Langen, "Culturing Planktonic Foraminifera in Order to Better Understand Climate Change," UCSB SARI Research Colloquia, Aug. 1998

Bergsma, G.S. and A. Qamar, "Data Acquisition for the Pacific Northwest Geodetic Array," Poster Presented at the NASA Space Grant Consortium Annual Meeting, Sep. 1997

Professional Reports

City of Seattle Hazard Vulnerability Analysis (edited)

University of Washington Hazard Vulnerability Analysis (edited)

UW IHMP Small Business Hazard Vulnerability Analyses (authored)