Dr. Patrick Gagnon
Bachelors: B.Sc. Laval University
Doctoral: Ph.D. Laval University
Telephone: (709) 864-7663
E-mail: pgagnon@mun.ca
Website: http://www.ucs.mun.ca/~pgagnon/
List all Publications
Research Interests:
Research in my lab (the Cold Ocean Benthic Ecology Laboratory - COBEL) aims to elucidate the structure and function of subtidal marine ecosystems in subarctic and temperate regions with current emphasis on shallow rocky ecosystems of eastern Canada. It investigates how environmental variability (including anthropogenic disturbances) affects growth, survival, behavior, and interactions in native and invasive benthic macro-organisms (mainly invertebrates and seaweeds). Our approach combines field and laboratory experiments and observations carried out using scuba diving, underwater videography, wave tanks, remote sensors (airborne and satellite), and GIS tools to extract and merge information across a range of spatial and temporal scales.
Learn more by visiting the COBEL website
Recent Publications:
Gagnon, P. (2010). Remote sensing: To map or not to map? Towards characterizing the distribution of eastern Canada's shallow marine vegetation from above the sea surface.. In Gillies, S.; Hewitt, S. (Eds.), Biology on the cutting edge. Concepts, Issues, and Canadian Research around the Globe (Vol. 1 and 2, pp. 195-203 and 139-141). Pearson Canada
Scheibling, R.E.; Gagnon, P. (2009). Temperature-mediated outbreak dynamics of the invasive bryozoan Membranipora membranacea in Nova Scotian kelp beds. Marine Ecology-progress Series. 390 1-13. (Click here for Abstract)
Gagnon, P.; Scheibling, R.E.; Jones, W.; Tully, D. (2008). The role of digital bathymetry in mapping shallow marine vegetation from hyperspectral image data. International Journal Of Remote Sensing. 29 (3) 879-904.
Kelly, J.R.; Scheibling, R.E.; Iverson, S.J.; Gagnon, P. (2008). Fatty acid profiles in the gonads of the sea urchin Strongylocentrotus droebachiensis on natural algal diets. Marine Ecology-progress Series. 373 1-9.
Scheibling, R.E.; Gagnon, P. (2006). Competitive interactions between the invasive green alga Codium fragile ssp tomentosoides and native canopy-forming seaweeds in Nova Scotia (Canada). Marine Ecology-progress Series. 325 1-14. (Click here for Abstract)
Gagnon, P.; St-Hilaire-Gravel, L.V.; Himmelman, J.H.; Johnson, L.E. (2006). Organismal defenses versus environmentally mediated protection from herbivores: Unraveling the puzzling case of Desmarestia viridis (Phaeophyta). Journal Of Experimental Marine Biology And Ecology. 334 (1) 10-19. (Click here for Abstract)
Gagnon, P.; Johnson, L.E.; Himmelman, J.H. (2005). Kelp patch dynamics in the face of intense herbivory: Stability of Agarum clathratum (Phaeophyta) stands and associated flora on urchin barrens. Journal Of Phycology. 41 (3) 498-505. (Click here for Abstract)
Gagnon, P.; Himmelman, J.H.; Johnson, L.E. (2004). Temporal variation in community interfaces: kelp-bed boundary dynamics adjacent to persistent urchin barrens. Marine Biology. 144 (6) 1191-1203.
Gagnon, P.; Wagner, G.; Himmelman, J.H. (2003). Use of a wave tank to study the effects of water motion and algal movement on the displacement of the sea star Asterias vulgaris towards its prey. Marine Ecology-progress Series. 258 125-132. (Click here for Abstract)
Gagnon, P.; Himmelman, J.H.; Johnson, L.E. (2003). Algal colonization in urchin barrens: defense by association during recruitment of the brown alga Agarum cribrosum. Journal Of Experimental Marine Biology And Ecology. 290 (2) 179-196.