Dr. Julius A. Ellrich, Postdoctoral Fellow
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Marine Ecologist I am examining predator-prey interactions, predator nonconsumptive effects on prey populations, trait-mediated indirect interactions and the function of foundation species in benthic communities. For my research, I am using rocky intertidal organisms as model systems. Currently, I am investigating benthic-pelagic coupling along the Canadian Atlantic coast, biological invasions on the Japanese Pacific coast and plastic pollution in the Mediterranean Sea. Contact: jellrich@stfx.ca Profiles: academia.edu Figshare Mendeley ORCID Research Gate Address: Saint Francis Xavier University Department of Biology Marine Ecology Lab 2320 Notre Dame Avenue Antigonish, Nova Scotia, B2G 2W5, Canada |
News:
April 2020
Article in press:
Ellrich, J. A. 2020. Feeding for facilitation? Frontiers in Ecology and the Environment (in press)
Datasets published:
Scrosati, R. A. & J. A. Ellrich. 2020. Abundance of seaweeds and sessile invertebrates at the high and mid-intertidal zones in wave-exposed habitats along the Nova Scotia coast (2017). Figshare. https://doi.org/10.6084/m9.figshare.12058821.v1
Scrosati, R. A., J. A. Ellrich & M. J. Freeman. 2020. Daily SST measured at 8 wave-exposed intertidal locations along the Nova Scotia coast (May 2015 to June 2017). Figshare. https://doi.org/10.6084/m9.figshare.12058962.v1
March 2020
Videos published:
Ellrich, J. A. 2020. Grazing freshwater snails. Figshare. https://doi.org/10.6084/m9.figshare.11926752.v1
Ellrich, J. A. 2020. Burrowing and feeding green crabs. Figshare. https://doi.org/10.6084/mp.figshare.11955630.v1
February 2020
Article published:
Scrosati, R. A. & J. A. Ellrich 2020. Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July
of two years differing in ENSO conditions. Oceanological and Hydrobiological Studies 49(1): 81-87. DOI: 10.1515/ohs-2020-0008
January 2020
Article published and featured in the news:
Ehlers, S. M. & J. A. Ellrich 2020. First record of 'plasticrusts' and 'pyroplastic' from the Mediterranean Sea.
Marine Pollution Bulletin 151: 110845. http://doi.org/10.1016/j.marpolbul.2019.110845
Arrivano nuove tipologie di plastica inquinante (Offert Energia, Italy, 7 Jan 2020)
Field work in Madeira (link)
December 2019
Article in press and featured in the news:
Ehlers, S. M. & J. A. Ellrich 2020. First record of 'plasticrusts' and 'pyroplastic' from the Mediterranean Sea. Marine Pollution Bulletin (in press)
Ecco i 2 nuovi tipi di plastica che stanno inquinando in nostri mari (Cittadini Ecologisti, Italy, 31 Dec 2019)
November 2019
Preprint released and featured in the news:
Ehlers, S. M. & J. A. Ellrich 2019. First record of 'plasticrusts' and 'pyroplastic' from the European Mediterranean Sea.
Biorxiv. https://doi.org/10.1101/837484
New Scientist, UK (online: 14 Nov 2019)
Technologie Média, France (14 Nov 2019)
Deutschlandfunk Nova, Germany (15 Nov 2019)
Spektrum.de, Germany (15 Nov 2019)
Universität Koblenz-Landau, Germany (19 Nov 2019)
Mitteldeutscher Rundfunk, Germany (19 Nov 2019)
Focus, Italy (22 Nov 2019)
New Scientist, UK (print: 23 Nov 2019)
Forbes Magazine, USA (27 Nov 2019)
Mittelmeer Journal, Germany (28 Nov 2019)
October 2019
Conference presentation:
Yorisue, T., J. A. Ellrich & K. Momota 2019. 57th Annual Meeting of the Carcinological Society of Japan,
Shinagawa Campus, Tokyo University of Marine Sciences and Technology, Tokyo, Japan
Field work in France and Italy (link)
September 2019
Conference presentation:
Ellrich, J. A., T. Yorisue & K. Momota 2019. Icymare, University of Bremen, Bremen, Germany
Manuscript accepted:
Ellrich, J. A. 2019. Feeding for facilitation? Frontiers in Ecology and the Environment
August 2019
Conference presentation:
Ellrich, J. A., T. Yorisue & K. Momota 2019. European Marine Biology Symposium, University College Dublin, Dublin, Ireland
June 2019
Awarded German Academic Exchange Service (DAAD) Travel Scholarship
Article in press:
Scrosati, R. A. & J. A. Ellrich 2019. Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast
in July of two years differing in ENSO conditions. Oceanological and Hydrobiological Studies (in press)
May 2019
Article published:
Scrosati, R. A., J. A. Ellrich 2019. A 5-year study (2014-2018) of the relationship between coastal
phytoplankton abundance and intertidal barnacle size along the Atlantic Canadian coast . PeerJ 7: e6892.
http://doi.org/10.7717/peerj.6892
Conference presentation:
Scrosati, R. A., M. Freeman & J. A. Ellrich 2019. Atlantic Canada Coastal & Estuarine Science Society Conference 2019
Saint Mary's University, Halifax, Nova Scotia, Canada
April 2019
Article published:
Yorisue, T., J. A. Ellrich & K. Momota 2019. Mechanisms underlying predator-driven biotic resistance
against introduced barnacles on the Pacific coast of Hokkaido, Japan. Biological Invasions (online first)
https://doi.org/10.1007/s10530-019-01980-4
Article in press:
Scrosati, R. A., J. A. Ellrich 2019. A 5-year study (2014-2018) of the relationship between coastal
phytoplankton abundance and intertidal barnacle size along the Atlantic Canadian coast . PeerJ (in press)
March 2019
Article in press:
Yorisue, T., J. A. Ellrich & K. Momota 2019. Mechanisms underlying predator-driven biotic resistance
against introduced barnacles on the Pacific coast of Hokkaido, Japan. Biological Invasions (in press)
February 2019
Conference attended:
Aquatic Invasive Species Meeting, Universität Koblenz-Landau, Koblenz, Germany
November 2018
Conference presentation:
Meunier, Z. D., R. A. Scrosati, J. A. Ellrich, S. D. Hacker & B. A. Menge 2018. Cross-continent comparison
of coastal cooling events in Oregon and Nova Scotia. 99th Annual Meeting of the Western Society of Naturalists,
Tacoma, Washington, USA
Workshop attended:
Quasimeme/Norman Microplastics Analysis Workshop, Vrije Universiteit Amsterdam, The Netherlands
October 2018
Article published:
Scrosati, R. A. & J. A. Ellrich 2018. Benthic-pelagic links along the Atlantic Canadian coast.
Bulletin of the Ecological Society of America 99(4): e01422. https://doi.org/10.1002/bes2.1422 (link)
Preprint & dataset published:
Scrosati, R. A. & J. A. Ellrich 2018. Positive relationship between coastal phytoplankton abundance
and intertidal barnacle growth along the Nova Scotia coast. MarXiv Papers. doi: 10.31230/osf.io/5e9cs
Scrosati, R. A. & J. A. Ellrich 2018. Chlorophyll-a and barnacle size data.
Figshare. https://doi.org/10.6084/m9.figshare.7212446.v1
September 2018
Conference presentations given:
Ellrich J. A., S. M. Ehlers, R. A. Scrosati & M. Molis (2018) European Marine Biology Symposium, Ostend, Belgium
Ellrich, J. A., T. Yorisue & K. Momota (2018) DZG Meeting 2018,
111th Annual Meeting of the German Zoological Society, Greifswald, Germany
Yorisue, T., J. A. Ellrich & K. Momota (2018) Joint Meeting of the Japanese Association of Benthology
& the Plankton Society of Japan, Sōka University, Hachiōji, Tokyo, Japan
Preprint published:
Scrosati, R. A. & J. A. Ellrich 2018. Coastal winds, sea surface temperature, and upwelling in Atlantic Canada in
two years differing in ENSO and NAO conditions. EarthArXiv Preprints. doi: 10.31223/osf.io/yfcp8
August 2018
Data, photos and videos published:
Scrosati, R. A. & J. A. Ellrich 2018. Intertidal barnacle and mussel recruitment data from Nova Scotia, Canada.
Figshare https://doi.org/10.6084/m9.figshare.7033538.v1
Scrosati, R. A. & J. A. Ellrich 2018. Photos of rocky intertidal locations along the Atlantic coast of Nova Scotia, Canada.
Figshare https://doi.org/10.6084/m9.figshare.6937916.v1
Ellrich, J. A. & R. A. Scrosati 2018. Videos of rocky intertidal locations along the Atlantic coast of Nova Scotia, Canada.
Figshare https://doi.org/10.6084/m9.figshare6936308.v1
July 2018
Dataset published:
Scrosati, R. A. & J. A. Ellrich 2018. Data on sea surface temperature, winds, and upwelling for the Atlantic coast of Nove Scotia, Canada.
Figshare https://doi.org/10.6084/m9.figshare.6871571.v1
June 2018
Article published:
Scrosati, R. A. & J. A. Ellrich 2018. Thermal moderation of the intertidal zone by seaweed canopies in winter.
Marine Biology 165:115 (link)
Article in press:
Scrosati, R. A. & J. A. Ellrich 2018. Benthic-pelagic links along the Atlantic Canadian coast.
Bulletin of the Ecological Society of America (in press)
May 2018
Article published:
Scrosati, R. A. & J. A. Ellrich 2018. Benthic-pelagic coupling and bottom-up forcing in rocky intertidal communities
along the Atlantic Canadian coast. Ecosphere 9(5): e02229. https://doi.org/10.1002/ecs2.2229 (link)
Conference presentation published online:
Scrosati, R. A. & J. A. Ellrich 2018. Ecological determinants of intertidal recruitment and metacommunity structure
on the Atlantic coast of Nova Scotia. 4th World Conference on Marine Biodiversity, Montreal, Quebec, Canada (link)
StFX Marine Ecology Lab well represented at World Conference on Marine Biodiversity (link)
Fieldwork on the Gulf of St. Lawrence coast (link)
April 2018
Article in press:
Scrosati, R. A. & J. A. Ellrich 2018. Benthic-pelagic coupling and bottom-up forcing in rocky intertidal communities
along the Atlantic Canadian coast. Ecosphere (in press)
Fieldwork along the Atlantic coast of Nova Scotia (link)
March 2018
Article published:
Ehlers, S. M., R. A. Scrosati & J. A. Ellrich 2018. Nonconsumptive predator effects on prey demography:
dogwhelk cues decrease benthic mussel recruitment. Journal of Zoology https://doi.org/10.1111/jzo.12555
Conference presentation:
Yorisue, T., K. Momota & J. A. Ellrich (2018) The 65th Annual Meeting of the Ecological Society of Japan. Sapporo, Japan
February 2018
Article in press:
Ehlers, S. M., R. A. Scrosati & J. A. Ellrich 2018. Nonconsumptive predator effects on prey demography:
dogwhelk cues decrease benthic mussel recruitment. Journal of Zoology (in press)
Course co-teaching:
Biological Invasions, Predator Nonconsumptive Effects on Prey Populations, Habitat Fragmentation & Modification.
Biology 308: Biology of Populations, St. Francis Xavier University, Antigonish, Canada
January 2018
Conference poster published online:
Scrosati, R. A. & J. A. Ellrich 2018. Nonconsumptive predator effects on prey demography.
Gordon Research Conference on Predator-Prey Interactions, Ventura, California, USA.
F1000Research 7:118. doi: 10.7490/f1000research.1115236.1
December 2017
Preprint published:
Scrosati, R. A. & J. A. Ellrich 2017. Recruitment and abundance of intertidal barnacles and mussels along the Atlantic Canadian coast:
pelagic influences and relationships with predator abundance. Biorxiv. doi: https://doi.org/10.1101/239756
November 2017
Conference presentation:
Yorisue, T. & J. A. Ellrich (2017) 3rd Asian Marine Biology Symposium, Kumamoto, Japan
Course co-taught:
Biological Invasions in Marine Systems. Biology 311: Coastal Marine Ecology,
St. Francis Xavier University, Antigonish, Canada
Fieldwork along the Atlantic coast of Nova Scotia (link)
October 2017
Lectures published online:
Ellrich, J. A. 2017. Predator nonconsumptive effects, trait-mediated indirect interactions
and influences of seaweed canopies in intertidal systems. figshare (link)
Guest blog published online:
Ehlers, S. M. & J. A. Ellrich 2017. Purple is possible, but rare. F1000Research blog (link)
Fieldwork along the Atlantic coast of Nova Scotia (link)
September 2017
Course co-taught:
Predator nonconsumptive effects, trait-mediated indirect interactions and influences of seaweed canopies in intertidal systems.
Biology 311: Coastal Marine Ecology, St. Francis Xavier University, Antigonish, Canada
Article published:
Ehlers, S. M. & J. A. Ellrich 2017. First visual record of rare purple-colored dogwhelks (Nucella lapillus)
on the Atlantic coast of Nova Scotia, Canada. F1000Research 5:2435. doi: 10.12688/f1000research.9707.2
Dataset published:
Ellrich, J. A. & R. A. Scrosati 2017. Maximum water velocities in wave-exposed rocky intertidal habitats
from Deming Island, Atlantic coast of Nova Scotia, Canada. Pangaea. doi: https://doi.pangaea.de/10.1594/PANGAEA.880722
August 2017
Fieldwork along the Atlantic coast of Nova Scotia (link)
Marine Ecology Lab presents at annual congress of the Ecological Society of America
www.stfx.ca/about/news/marine-ecology-lab
Conference presentation published:
Scrosati, R. A., Z. T. Sherker, S. M. Ehlers & J. A. Ellrich 2017. Nonconsumptive predator effects on prey:
dogwhelk cues limit mussel recruitment and trigger mussel shell plasticity that hinders predation.
102nd Congress of the Ecological Society of America. Portland, Oregon, USA.
F1000Research 6: 1425. doi: 107490/f1000research.1114677.1
Preprint published:
Ehlers, S. M., R. A. Scrosati & J. A. Ellrich 2017. Nonconsumptive predator effects
on prey demography: Dogwhelk cues decrease benthic mussel recruitment.
BioRxiv, doi: https://doi.org/10.1101/172692
July 2017
Fieldwork along the Atlantic coast (link)
June 2017
Awarded German Academic Exchange Service (DAAD) Postdoctoral Scholarship
Articles published:
Sherker, Z. T., J. A. Ellrich & R. A. Scrosati 2017. Predator-induced shell plasticity in mussels hinders
predation by drilling snails. Marine Ecology Progress Series 573: 167-175. DOI 10.3354/meps12194 (link)
Scrosati, R. A. & J. A. Ellrich 2017. Unimodal relationship between small-scale barnacle recruitment
and the density of pre-existing barnacle adults. PeerJ 5:e3444 DOI 10771/peerj.3444 (link)
May 2017
Manuscripts accepted:
Sherker, Z.T., J.A. Ellrich & R. A. Scrosati 2017. Predator-induced shell plasticity in mussels hinders
predation by drilling snails. Marine Ecology Progress Series, in press
Scrosati, R. A. & J. A. Ellrich 2017. Unimodal relationship between small-scale barnacle recruitment
and the density of pre-existing barnacle adults. PeerJ, in press
Conference presentations given:
Ellrich, J. A., Sherker, Z. T. & R. A. Scrosati 2017 Atlantic Canada Coastal & Estuarine Science Society (ACCESS) Conference 2017,
McGill University, Montreal, Quebec, Canada.
Ehlers, S. M., J. A. Ellrich & R. A. Scrosati 2017 Atlantic Canada Coastal & Estuarine Science Society (ACCESS) Conference 2017,
McGill University, Montreal, Quebec, Canada.
April 2017
Preprints published:
Sherker, Z. T., J. A. Ellrich & R. A. Scrosati (2017) Predator-induced shell plasticity in mussels hinders predation
by drilling snails. BioRxiv. doi: https://doi.org/10.1101/124784
Scrosati, R. A. & J. A. Ellrich (2017) Unimodal relationship between adult and recruit density in barnacle populations.
PeerJ Preprints 5: article e2914v1https://doi.org/10.7287/peerj.preprints.2914v1
March 2017
Conference presentations given:
Ehlers, S. M., J. A. Ellrich & R. A. Scrosati 2017 St. Francis Xavier University Research Day,
St. Francis Xavier University, Antigonish, Nova Scotia, Canada
Sherker, Z. T., J. A. Ellrich & R. A. Scrosati 2017 Science Atlantic Biology Conference,
St. Francis Xavier University, Antigonish, Nova Scotia, Canada
Invited lectures:
Predator Nonconsumptive Effects & Trait-Mediated Indirect Interactions in Intertidal Systems.
Biology 308: Biology of Populations, St. Francis Xavier University, Antigonish, Canada
February 2017
Course co-taught:
Biological Invasions in Marine, Freshwater & Terrestrial Systems, Habitat Fragmentation & Modification
Biology 360: Global Change Biology, St. Francis Xavier University, Antigonish, Canada
Frozen Gulf of Saint Lawrence coast (link)
January 2017
Awarded Stiftung für Kanada-Studien (Trier, Germany) Postdoctoral Scholarship
December 2016
Fieldwork on the Atlantic (link)
Winter in Antigonish (link)
November 2016
Invited lectures:
Predator Nonconsumptive Effects & Trait-Mediated Indirect Interactions in Intertidal Systems.
Biology 311: Coastal Marine Ecology, St. Francis Xavier University, Antigonish, Canada
October 2016
Article published:
Scrosati, R. A. & J. A. Ellrich (2016) A 12-year record of intertidal barnacle recruitment
in Atlantic Canada (2005-2016): relationships with sea surface temperature and
phytoplankton abundance. PeerJ 4: e2623. DOI 10.7717/peerj.2623 (link)
Fieldwork on the Atlantic (link)
Autumn in Antigonish (link) and Cape Breton (link)
September 2016
Manuscript accepted:
Scrosati, R. A. & J. A. Ellrich (2016) A 12-year record of intertidal barnacle recruitment
in Atlantic Canada (2005-2016): relationships with sea surface temperature and
phytoplankton abundance. PeerJ (in press)
Preprint published:
Ehlers, S. M. & J. A. Ellrich (2016) First visual record of rare purple dogwhelks (Nucella lapillus)
on the Atlantic coast of Nova Scotia, Canada. PeerJ Preprints 4:e2486v1
https://doi.org/10.7287/peerj.preprints.2486v1
Bay of Fundy (link)
August 2016
Atlantic field work in August (link)
Conference presentation published:
Ellrich, J. A. & R. A. Scrosati (2016) Flushing away the stink of predators:
The modulation of predator chemical cues by water motion.
F1000Research 2016, 5:2079 (slides) (doi: 10.7490/f1000research.1112922.1)
Preprint published:
Scrosati, R. A. & J. A. Ellrich (2016) Intertidal barnacle recruitment in Nova Scotia (Canada)
between 2005-2016: relationships with sea surface temperature and phytoplankton abundance.
PeerJ Preprints 4:e2355v1 https://doi.org/10.7287/peerj.preprints.2355v1
July 2016
Article published:
Ellrich, J. A. & R. A. Scrosati (2016) Water motion modulates predator nonconsumptive
limitation of prey recruitment. Ecosphere 7(7):e01402. DOI 10.1002/ecs2.1402 (link)
June 2016
Fieldwork along the Atlantic coast (link)
Collecting dogwhelks (video)
May 2016
Manuscript accepted:
Ellrich, J. A. & R. A. Scrosati (2016) Water motion modulates predator nonconsumptive
limitation of prey recruitment. Ecosphere 7 (in press)
Conference presentations published:
Ellrich, J. A., R. A. Scrosati, C. Bertolini & M. Molis (2016) A predator has nonconsumptive
effects on different life-history stages of a prey. F1000Research 2016, 5:909 (slides)
DOI 10.7490/f1000research.1111901.1 (link)
Ellrich, J. A., R. A. Scrosati & M. Molis (2016) Predator nonconsumptive effects on prey
recruitment weaken with prey density. F1000Research 2016, 5:801 (slides)
DOI 10.7490/f1000research.1111811.1 (link)
Fieldwork on predator nonconsumptive effects started (video)
April 2016
Article published:
Ellrich, J. A., R. A. Scrosati, K. Romoth & M. Molis (2016) Adult prey neutralizes predator
nonconsumptive limitation of prey recruitment. PLOS ONE 11(4): e0154572.
DOI 10.1371/journal.pone.0154572 (link)
Presentation given:
Ellrich, J. A. (2016) German Day, 11th Annual
St. Francis Xavier University, Antigonish, Nova Scotia, Canada
Fieldwork on the Atlantic coast (link)
March 2016
Presentation given:
Ellrich, J. A. & R. A. Scrosati (2016) Student Research Day, 14th Annual
St. Francis Xavier University, Antigonish, Nova Scotia, Canada
Invited lecture:
Predator Nonconsumptive Effects & Trait-Mediated Indirect Interactions in Intertidal Systems.
Biology 308: Biology of Populations, St. Francis Xavier University, Antigonish, Canada
February 2016
Datasets published:
Ellrich, J. A., R. A. Scrosati & M. Molis (2016) Predator nonconsumptive effects on prey recruitment weaken with recruit density,
supplementary material. doi:10.1594/PANGAEA.857409
Ellrich, J. A., R. A. Scrosati, C. Bertolini & M. Molis (2016) A predator has nonconsumptive effects on
different life-history stages of a prey, supplementary material. doi:10.1594/PANGAEA.857351
January 2016
Article published:
Ellrich, J. A., R. A. Scrosati, C. Bertolini & M. Molis (2016) A predator has nonconsumptive effects on
different life-history stages of a prey. Marine Biology 163:5 DOI 10.1007/s00227-015-2778-6 (link)
StFX researchers publish paper in leading marine biology journal on novel relationship between predators and prey (link)
Presentation given:
Ellrich J. A. (2016) St. Francis Xavier University, Antigonish, Nova Scotia, Canada
December 2015
Chedabucto Bay (link)
November 2015
Gulf of Saint Lawrence (link)
October 2015
Manuscript accepted:
Ellrich, J. A., R. A. Scrosati, C. Bertolini & M. Molis (2016) A predator has nonconsumptive effects on
different life-history stages of a prey. Marine Biology (in press)
Autumn in Cape Breton (link) and in Antigonish (link)
September 2015
Atlantic Coast (link)
August 2015
Research Conducted in StFX Lab Leads to Successful PhD Defense for International Student (link)
July 2015
PhD Thesis defended:
Ellrich J. A. (2015) Predator Nonconsumptive Effects and Seaweed Canopy Influences on Barnacle Populations.
University of Bremen, Germany
Articles published:
Ellrich J. A., R. A. Scrosati & W. Petzold (2015) Predator density affects nonconsumptive predator limitation of prey recruitment:
field experimental evidence. Journal of Experimental Marine Biology and Ecology 472: 72-76 (link)
Ellrich J. A., R. A. Scrosati & M. Molis (2015) Predator nonconsumptive effects on prey recruitment.
Bulletin of the Ecological Society of America 96(3): 478-480 (link)
June 2015
PhD Thesis submitted
Join us for a trip from Antigonish to Halfway Cove (link)
(another clip by Willy Petzold)
May 2015
"Wrapping IT up!"
In the meantime:
Enjoy Nova Scotia 500+ times! (link)
and Willy's clip "Setup at Sunrise" (link)
April 2015
Access Student Profile April 2015: Julius A. Ellrich (link)
March 2015
Article published:
Ellrich J. A., R. A. Scrosati & M. Molis (2015) Predator nonconsumptive effects on prey recruitment weaken with recruit density.
Ecology 96(3): 611-616 (link)
Conference presentations given:
Ellrich J. A., R. A. Scrosati & M. Molis (2015) Benthic Ecology Meeting 2015, 44th Annual,
Le Chateau Frontenac, Quebec City, Quebec, Canada
Ellrich J. A., R. A. Scrosati & M. Molis (2015) Student Research Day, 13th Annual
St. Francis Xavier University, Antigonish, Nova Scotia, Canada
StFX Marine Ecology Lab members present at North American Benthic Ecology Meeting (link)
