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Trinity College Dublin, The University of Dublin

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Dr. Nessa O'Connor
Associate Professor, Zoology

Publications and Further Research Outputs

Peer-Reviewed Publications

Kapletia, D. and O'Connor, N. and Rhodes, M.L. and Mulcahy, D., Community-driven business models for seaweed farming: the 'C-FAARER' approach, 2023 Conference Paper, 2023 DOI

Schertenleib, K.S.H. and Bruen, M. and Crowe, T.P. and O'Connor, N.E., Linking environmental monitoring data and the predicted effects of climate change for urban coastal management: A case study of Dublin Bay, Journal of Sea Research, 196, (102442), 2023 Journal Article, 2023 DOI

Emmett Duffy, J. and Stachowicz, J.J. and Reynolds, P.L. and Hovel, K.A. and Jahnke, M. and Sotka, E.E. and Bostrom, C. and Boyer, K.E. and Cusson, M. and Eklof, J. and Engelen, A.H. and Eriksson, B.K. and Joel Fodrie, F. and Griffin, J.N. and Hereu, C.M. and Hori, M. and Randall Hughes, A. and Ivanov, M.V. and Jorgensen, P. and Kruschel, C. and Lee, K.-S. and Lefcheck, J.S. and Moksnes, P.-O. and Nakaoka, M. and O'Connor, M.I. and O'Connor, N.E. and Orth, R.J. and Peterson, B.J. and Reiss, H. and Reiss, K. and Paul Richardson, J. and Rossi, F. and Ruesink, J.L. and Schultz, S.T. and Thormar, J. and Tomas, F. and Unsworth, R. and Voigt, E. and Whalen, M.A. and Ziegler, S.L. and Olsen, J.L., A Pleistocene legacy structures variation in modern seagrass ecosystems, Proceedings of the National Academy of Sciences of the United States of America, 119, (32), 2022 Journal Article, 2022 DOI

Gilson, AR, Smale, DA, Burrows, MT, O"Connor, NE, Spatio-temporal variability in the deposition of beach-cast kelp (wrack) and inter-specific differences in degradation rates, Marine Ecology Progress Series, 674, 2021, p89-102 Journal Article, 2021 TARA - Full Text DOI

Louise B. Firth, Daniel Harris, Julie A. Blaze, Martin P. Marzloff, Aurélien Boyé, Peter I. Miller, Amelia Curd, Mickaël Vasquez, Julia D. Nunn, Nessa E. O"Connor, Anne Marie Power, Nova Mieszkowska, Ruth M. O"Riordan, Michael T. Burrows, Lucy M. Bricheno, Antony M. Knights, Flavia L. D. Nunes, François Bordeyne, Laura E. Bush, James E. Byers, Carmen David, Andrew J. Davies, Stanislas F. Dubois, Hugh Edwards, Andy Foggo, Lisa Grant, J. A. Mattias Green, Paul E. Gribben, Fernando P. Lima, David McGrath, Laure M. L. J. Noël, Rui Seabra, Christina Simkanin, Stephen J. Hawkins, Enrico Pirotta, Specific niche requirements underpin multidecadal range edge stability, but may introduce barriers for climate change adaptation, Diversity and Distributions, 2021 Journal Article, 2021

Hovel, Kevin A., Duffy, J. Emmett, Stachowicz, John J., Reynolds, Pamela, Boström, Christoffer, Boyer, Katharyn E., Cimon, Stéphanie, Cusson, Mathieu, Fodrie, Fredrick Joel, Gagnon, Karine, Hereu, Clara M., Hori, Masakazu, Jorgensen, Pablo, Kruschel, Claudia, Lee, Kun"Seop, Nakaoka, Masahiro, O"Connor, Nessa E., Rossi, Francesca, Ruesink, Jennifer, Tomas, Fiona, Ziegler, Shelby, Joint effects of patch edges and habitat degradation on faunal predation risk in a widespread marine foundation species, Ecology, 102, (5), 2021 Journal Article, 2021 DOI

Firth, Louise B., Curd, Amelia, Hawkins, Stephen J., Knights, Antony M., Blaze, Julie A., Burrows, Michael T., Dubois, Stanislas F., Edwards, Hugh, Foggo, Andy, Gribben, Paul E., Grant, Lisa, Harris, Daniel, Mieszkowska, Nova, Nunes, Flavia L.D., Nunn, Julia D., Power, Anne Marie, O'Riordan, Ruth M., McGrath, David, Simkanin, Christina, O'Connor, Nessa E., On the diversity and distribution of a data deficient habitat in a poorly mapped region: The case of Sabellaria alveolata L. in Ireland, Marine Environmental Research, 169, 2021, p105344 Journal Article, 2021 DOI

Abby R. Gilson, Dan A. Smale, Nessa O"Connor, Ocean warming and species range shifts affect rates of ecosystem functioning by altering consumer"resource interactions, Ecology, 2021 Journal Article, 2021

Zwerschke, N., Eagling, L., Roberts, D. & O'Connor, N. E., Can an invasive species compensate for the loss of a declining native species? Functional similarity of native and introduced oysters, Marine environmental research, 153, 2020, p104793- Journal Article, 2020 DOI

Harford, Niamh, O"Connor, Nessa, Taylor, David, Impact resistance of limpet shells: a study of local adaptations, Applied Physics A, 126, (9), 2020 Journal Article, 2020 DOI

Whalen, Matthew A., Whippo, Ross D. B., Stachowicz, John J., York, Paul H., Aiello, Erin, Alcoverro, Teresa, Altieri, Andrew H., Benedetti-Cecchi, Lisandro, Bertolini, Camilla, Bresch, Midoli, Bulleri, Fabio, Carnell, Paul E., Cimon, Stéphanie, Connolly, Rod M., Cusson, Mathieu, Diskin, Meredith S., D"Souza, Elrika, Flores, Augusto A. V., Fodrie, F. Joel, Galloway, Aaron W. E., Gaskins, Leo C., Graham, Olivia J., Hanley, Torrance C., Henderson, Christopher J., Hereu, Clara M., Hessing-Lewis, Margot, Hovel, Kevin A., Hughes, Brent B., Hughes, A. Randall, Hultgren, Kristin M., Jänes, Holger, Janiak, Dean S., Johnston, Lane N., Jorgensen, Pablo, Kelaher, Brendan P., Kruschel, Claudia, Lanham, Brendan S., Lee, Kun-Seop, Lefcheck, Jonathan S., Lozano-Álvarez, Enrique, Macreadie, Peter I., Monteith, Zachary L., O"Connor, Nessa E., Olds, Andrew D., O"Leary, Jennifer K., Patrick, Christopher J., Pino, Oscar, Poore, Alistair G. B., Rasheed, Michael A., Raymond, Wendel W., Reiss, Katrin, Rhoades, O. Kennedy, Robinson, Max T., Ross, Paige G., Rossi, Francesca, Schlacher, Thomas A., Seemann, Janina, Silliman, Brian R., Smee, Delbert L., Thiel, Martin, Unsworth, Richard K. F., van Tussenbroek, Brigitta I., Vergés, Adriana, Yeager, Mallarie E., Yednock, Bree K., Ziegler, Shelby L., Duffy, J. Emmett, Climate drives the geography of marine consumption by changing predator communities, Proceedings of the National Academy of Sciences, 117, (45), 2020, p28160-28166 Journal Article, 2020 DOI

White, Lydia, O"Connor, Nessa E., Yang, Qiang, Emmerson, Mark C., Donohue, Ian, Individual species provide multifaceted contributions to the stability of ecosystems, Nature Ecology & Evolution, 4, (12), 2020, p1594-1601 Journal Article, 2020 DOI

Bertolini, C., Montgomery, W. I., & O'Connor, N.E., Edge effects are not linked to key ecological processes in a fragmented biogenic reef, Estuaries and Coasts, 43, 2020, p708 - 721 Journal Article, 2020

Hunter, W. R., Ogle, N. & O'Connor, N.E., Warming affects predatory faunal impacts upon microbial carbon cycling, Functional Ecology, 2019 Journal Article, 2019

Magill, C. L., Maggs, C. A. M., Johnson, M. P. & O'Connor, N.E., Sustainable harvesting of the ecosystem engineer Corallina officinalis for biomaterials, Frontiers in Marine Science, 6, 2019, p285- Journal Article, 2019 DOI TARA - Full Text

van der Molen, J., Ruardij, P., Mooney, K., Kerrison, P., O'Connor, N. E., Gorman, E., Timmermans, K., Wright, S., Kelly, M., Hughes, A. D., Capuzzo, E., Modelling potential production and environmental effects of macroalgae farms in UK and Dutch coastal waters, Biogeosciences, 2018 Journal Article, 2018

Zwerschke N., van Rein H., Harrod C., Reddin C., Emmerson M.C., Roberts D., O'Connor N.E., Competition between co-occurring invasive and native consumers switches between habitats, Functional Ecology, 32, (12), 2018, p2717 - 2729, p2717-2729 Journal Article, 2018 DOI

Zwerschke, N., Kochmann, J., Ashton, E. C., Crowe, T. P., Roberts, D., O'Connor, N. E., Co-occurrence of native Ostrea edulis and non-native Crassostrea gigas revealed by monitoring of intertidal oyster populations, Journal of the Marine Biological Association of the United Kingdom, 2018 Journal Article, 2018

Mooney K.M., Beatty G.E., Elsasser B., Follis E.S., Kregting L., O'Connor N.E., Riddell G.E., Provan J., Hierarchical structuring of genetic variation at differing geographic scales in the cultivated sugar kelp Saccharina latissima, Marine Environmental Research, 2018, p108 - 115, p108-115 Journal Article, 2018 DOI

Reddin, C. J., Bothwell, J. H., O'Connor, N. E., Harrod, C. , The effects of spatial scale and isoscape on consumer isotopic niche width, Functional Ecology, 2018 Journal Article, 2018

Van Der Molen, J. and Ruardij, P. and Mooney, K. and Kerrison, P. and O'Connor, N.E. and Gorman, E. and Timmermans, K. and Wright, S. and Kelly, M. and Hughes, A.D. and Capuzzo, E., Modelling potential production of macroalgae farms in UK and Dutch coastal waters, Biogeosciences, 15, (4), 2018, p1123-1147 Journal Article, 2018 DOI

White, L.J., Donohue, I., Emmerson, M.C. & O'Connor, N. E., Combined effects of warming and nutrients on marine communities are moderated by predators and vary across functional groups, Global Change Biology, 24, 2018, 5853 - 5866 Journal Article, 2018 DOI

Reynolds, P.L., Stachowicz, J.J., Hovel, K., Boström, C., Boyer, K., Cusson, M., Eklöf, J.S., Engel, F.G., Engelen, A.H., Eriksson, B.K., Fodrie, F.J., Griffin, J.N., Hereu, C.M., Hori, M., Hanley, T.C., Ivanov, M., Jorgensen, P., Kruschel, C., Lee, K.-S., McGlathery, K., Moksnes, P.-O., Nakaoka, M., O'Connor, M.I., O'Connor, N.E., Orth, R.J., Rossi, F., Ruesink, J., Sotka, E.E., Thormar, J., Tomas, F., Unsworth, R.K.F., Whalen, M.A., Duffy, J.E., Latitude, temperature, and habitat complexity predict predation pressure in eelgrass beds across the Northern Hemisphere, Ecology, 99, (1), 2018, p29-35 Journal Article, 2018

Bertolini C., Montgomery W.I., O'Connor N.E., Habitat with small inter-structural spaces promotes mussel survival and reef generation, Marine Biology, 165, (10), 2018 Journal Article, 2018 DOI

Bertolini, C., Geraldi, N.R., Montgomery, W.I., O'Connor, N.E., Substratum type and conspecific density as drivers of mussel patch formation, Journal of Sea Research, 121, 2017, p24-32 Journal Article, 2017

Geraldi, N.R., Bertolini, C., Emmerson, M.C., Roberts, D., Sigwart, J.D., O'Connor, N.E., Aggregations of brittle stars can perform similar ecological roles as mussel reefs, Marine Ecology Progress Series, 563, 2017, p157-167 Journal Article, 2017

Firth, L.B., Grant, L.M., Crowe, T.P., Ellis, J.S., Wiler, C., Convery, C., O'Connor, N.E., Factors affecting the prevalence of the trematode parasite Echinostephilla patellae (Lebour, 1911) in the limpet Patella vulgata (L.), Journal of Experimental Marine Biology and Ecology, 2017 Journal Article, 2017

Donohue, I., Petchey, O. L., Kéfi, S., Génin, A., Jackson, A. L., Yang, Q., O'Connor, N. E., Loss of predator species, not intermediate consumers, triggers rapid and dramatic extinction cascades, Global Change Biology, 23, 2017, p2962 - 2972 Journal Article, 2017

Green, D.S., Boots, B., O'Connor, N.E., Thompson, R., Microplastics Affect the Ecological Functioning of an Important Biogenic Habitat, Environmental Science and Technology, 51, (1), 2017, p68-77 Journal Article, 2017

Kyle, R., Reid, N., O'Connor, N., Roberts, D., Development of release methods for captive-bred freshwater pearl mussels (Margaritifera margaritifera, Aquatic Conservation: Marine and Freshwater Ecosystems, 27, (2), 2017, p492-501 Journal Article, 2017

Vye, S.R., Emmerson, M.C., Dick, J.T.A., O'Connor, N.E., Cumulative effects of multiple stressors: An invasive oyster and nutrient enrichment reduce subsequent invasive barnacle recruitment, Journal of Experimental Marine Biology and Ecology, 486, 2017, p322-327 Journal Article, 2017

Calderwood, J., O'Connor, N.E., Roberts, D., Breaking and entering: Examining the role of stress and aerial exposure in predator-prey relationships between the common shore crab (Carcinus maenas) and cultivated blue mussels (Mytilus edulis), Aquaculture, 452, 2016, p217-223 Journal Article, 2016

Firth, L. B., Knights, T. M., Bridger, D., Evans, A., Mieskowska, N., Moore, P. J., O'Connor, N. E., Sheehan, E. V., Thompson, R. C., Hawkins, S. J., Ocean sprawl: challenges and opportunities for biodiversity management in a changing world, Oceanography and Marine Biology: An Annual Review, 54, 2016, p189 - 262 Journal Article, 2016

Calderwood, J., O'Connor, N.E., Roberts, D., Efficiency of starfish mopping in reducing predation on cultivated benthic mussels (Mytilus edulis Linnaeus), Aquaculture, 452, 2016, p88-96 Journal Article, 2016

Reddin, C.J., O'Connor, N.E., Harrod, C., Living to the range limit: Consumer isotopic variation increases with environmental stress, PeerJ, 2016, (6), 2016 Journal Article, 2016

Mrowicki, R.J., O'Connor, N.E. & Donohue, I., Temporal variability of a single population can determine the vulnerability of communities to perturbations, Journal of Ecology, 104, 2016, p887 - 897 Journal Article, 2016 DOI

Donohue, I., Hillebrand, H., Montoya, J.M.; Petchey, O.L., Pimm, S.L., Fowler, M.S., Healy, K., Jackson, A.L., Lurgi, M., McClean, D., O'Connor, N.E., O'Gorman, E.J. & Yang, Q., Navigating the complexity of ecological stability, Ecology Letters, 19, 2016, p1072 - 1085 Journal Article, 2016 DOI

Zwerschke, N., Emmerson, M.C., Roberts, D., O'Connor, N.E., Benthic assemblages associated with native and non-native oysters are similar, Marine Pollution Bulletin, 111, (1-2), 2016, p305-310 Journal Article, 2016

Mrowicki, R.J., Maggs, C.A., O'Connor, N.E., Consistent effects of consumer species loss across different habitats, Oikos, 124, (12), 2015, p1555-1563 Journal Article, 2015

Vye, S.R., Emmerson, M.C., Arenas, F., Dick, J.T.A., O'Connor, N.E., Stressor intensity determines antagonistic interactions between species invasion and multiple stressor effects on ecosystem functioning, Oikos, 124, (8), 2015, p1005-1012 Journal Article, 2015

Calderwood, J., O'Connor, N.E., Roberts, D., The effects of transportation stress and barnacle fouling on predation rates of starfish (Asterias rubens) on mussels (Mytilus edulis), Aquaculture, 444, 2015, p108-113 Journal Article, 2015

Alexander, M.E., Dick, J.T.A., O'Connor, N.E., Predation in the marine intertidal amphipod Echinogammarus marinus Leach: Implications of inter- and intra-individual variation, Journal of Experimental Marine Biology and Ecology, 462, 2015, p50-54 Journal Article, 2015

Mrowicki, R.J., O'Connor, N.E., Wave action modifies the effects of consumer diversity and warming on algal assemblages, Ecology, 96, (4), 2015, p1020-1029 Journal Article, 2015

Calderwood, J., O'Connor, N.E., Roberts, D., Effects of baited crab pots on cultivated mussel (Mytilus edulis) survival rates, ICES Journal of Marine Science, 72, (6), 2015, p1802-1810 Journal Article, 2015

O'Connor, N.E., Bracken, M.E.S., Crowe, T.P. & Donohue, I., Nutrient enrichment alters the consequences of species loss, Journal of Ecology, 103, 2015, p862-870 Journal Article, 2015 DOI

Reddin, C.J., Docmac, F., O'Connor, N.E., Bothwell, J.H., Harrod, C., Coastal upwelling drives intertidal assemblage structure and trophic ecology, PLoS ONE, 10, (7), 2015 Journal Article, 2015

Mrowicki, R.J., Maggs, C.A., O'Connor, N.E., Does wave exposure determine the interactive effects of losing key grazers and ecosystem engineers?, Journal of Experimental Marine Biology and Ecology, 461, 2014, p416-424 Journal Article, 2014

Calderwood, J., O'Connor, N.E., Sigwart, J.D., Roberts, D., Determining optimal duration of seed translocation periods for benthic mussel (Mytilus edulis) cultivation using physiological and behavioural measures of stress, Aquaculture, 434, 2014, p288-295 Journal Article, 2014

O'Connor, N.E., Emmerson, M.C., Crowe, T.P. & Donohue, I., Distinguishing between direct and indirect effects of predators in complex ecosystems, Journal of Animal Ecology, 82, 2013, p438-448 Journal Article, 2013 DOI

Donohue, I., Petchey, O.L., Montoya, J.M., Jackson, A.L., McNally, L., Viana, M., Healy, K., Lurgi, M., O'Connor, N.E. & Emmerson, M.C., On the dimensionality of ecological stability, Ecology Letters, 16, 2013, p421 - 429 Journal Article, 2013

Smale, D.A., Burrows, M.T., Moore, P., O'Connor, N., Hawkins, S.J., Threats and knowledge gaps for ecosystem services provided by kelp forests: A northeast Atlantic perspective, Ecology and Evolution, 3, (11), 2013, p4016-4038 Journal Article, 2013

Alexander, M.E., Dick, J.T.A., O'Connor, N.E., Trait-mediated indirect interactions in a marine intertidal system as quantified by functional responses, Oikos, 122, (11), 2013, p1521-1531 Journal Article, 2013

Alexander, M.E., Dick, J.T.A., O'Connor, N.E., Born to kill: Predatory functional responses of the littoral amphipod Echinogammarus marinus Leach throughout its life history, Journal of Experimental Marine Biology and Ecology, 439, 2013, p92-99 Journal Article, 2013

O'Connor, N.E., Impacts of sewage outfalls on rocky shores: Incorporating scale, biotic assemblage structure and variability into monitoring tools, Ecological Indicators, 29, 2013, p501-509 Journal Article, 2013

O'Connor, N.E. & Donohue, I. , Environmental context determines multi-trophic effects of consumer species loss, Global Change Biology, 19, 2013, p431-440 Journal Article, 2013 DOI

Alexander, M.E., Dick, J.T.A., O'Connor, N.E., Haddaway, N.R., Farnsworth, K.D., Functional responses of the intertidal amphipod Echinogammarus marinus: Effects of prey supply, model selection and habitat complexity, Marine Ecology Progress Series, 468, 2012, p191-202 Journal Article, 2012

Matias, M.G., Chapman, M.G., Underwood, A.J., O'Connor, N.E., Increasing density of rare species of intertidal gastropods: Tests of competitive ability compared with common species, Marine Ecology Progress Series, 453, 2012, p107-116 Journal Article, 2012

Reality check: issues of scale and abstraction in biodiversity research, and potential solutions in, editor(s)Paterson, D. M., Aspden, R. J. A. & Solan, M. , Marine biodiversity futures and ecosystem functioning: Frameworks, methodologies and integration, Oxford University Press, 2012, pp185 - 199, [Crowe, T. P., Bracken, M. E. & O'Connor, N. E. ] Book Chapter, 2012

O'Connor, N.E., Donohue, I., Crowe, T.P. & Emmerson, M.C., Importance of consumers on exposed and sheltered rocky shores, Marine Ecology Progress Series, 443, 2011, p65 - 75 Journal Article, 2011 DOI

O'Connor, N.E., Shore exposure affects mussel population structure and mediates the effect of epibiotic algae on mussel survival in SW Ireland, Estuarine, Coastal and Shelf Science, 87, (1), 2010, p83-91 Journal Article, 2010

O'Connor, N.E., Crowe, T.P., Do mussel patches provide a refuge for algae from grazing gastropods?, Journal of Molluscan Studies, 74, (1), 2008, p75-78 Journal Article, 2008

O'Connor, N.E., Grabowski, J.H., Ladwig, L.M., Bruno, J.F., Simulated predator extinctions: Predator identity affects survival and recruitment of oysters, Ecology, 89, (2), 2008, p428-438 Journal Article, 2008

O'Connor, N.E., Bruno, J.F., Predatory fish loss affects the structure and functioning of a model marine food web, Oikos, 116, (12), 2007, p2027-2038 Journal Article, 2007

O'Connor, N.E., Crowe, T.P., Biodiversity among mussels: Separating the influence of sizes of mussels from the ages of patches, Journal of the Marine Biological Association of the United Kingdom, 87, (2), 2007, p551-557 Journal Article, 2007

O'Connor, N.E., Crowe, T.P., McGrath, D., Effects of epibiotic algae on the survival, biomass and recruitment of mussels, Mytilus L. (Bivalvia: Mollusca), Journal of Experimental Marine Biology and Ecology, 328, (2), 2006, p265-276 Journal Article, 2006

O'Connor, N.E., Crowe, T.P., Biodiversity loss and ecosystem functioning: Distinguishing between number and identity of species, Ecology, 86, (7), 2005, p1783-1796 Journal Article, 2005

O'Connor, N. E. & Crowe, T. P. , Biodiversity and ecosystem functioning: distinguishing between effects of the number of species and their identities., Ecology , 86 , 2005, p1783 - 1796. Journal Article, 2005

Research Expertise


Aquatic Ecology; Coastal Environmental Change; Coastal management and conservation; Coastal Processes; ECOLOGY; Ecology, Ecosystems; MARINE; Marine and Ocean Sciences; MARINE AQUACULTURE; Marine Biology; Marine pollution; Marine science and Fisheries biology; Marine Zoology; MARINE-ENVIRONMENT; RESTORATION ECOLOGY