Marc Johnson@evoecolab

Professor @UTMBiology @eebtoronto, Canada Research Chair. EvoEco of plants & animals. VP of CSEE/SCEE. Proudly Canadian (he/him)

 Mississauga, Canada
evoeco.org
Joined August 2013
1,626 Photos and videos
WOAH!!! Our article on the ecological, evolutionary & health effects of urban induced mutations got the cover of @NatureEcoEvo @Nature. What a lovely capstone surprise to a wonderful collaboration. Read more here: nature.com/articles/s41559-0…. Description of the photo in altext.
Herring gull in Hamilton Harbour, Hamilton, Canada, with steel-plant smokestacks in the background. The smokestacks emit polycyclic hydrocarbons that have been shown to induce heritable mutations in herring gulls and mammals. A Perspective by Johnson et al. highlights how such mutations may be important for the ecology, evolution and health of diverse organisms.

ALT Herring gull in Hamilton Harbour, Hamilton, Canada, with steel-plant smokestacks in the background. The smokestacks emit polycyclic hydrocarbons that have been shown to induce heritable mutations in herring gulls and mammals. A Perspective by Johnson et al. highlights how such mutations may be important for the ecology, evolution and health of diverse organisms.

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And we’re back! Cohort #1 had a fantastic adventure at Riverwood this weekend, exploring forests and fields. They were lucky enough to watch a Praying Mantis shed its final instar skin and emerge as an adult. There were also some very cooperative toads.
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It was a pleasure to speak with @chrisgloverCBC on @CBCToronto's Metro Morning this morning about how climate change is changing the species we see in our cities. You can find the segment here at 6:45am cbc.ca/listen/live-radio/1-3…

Metro Morning with Chris Glover | Live Radio | CBC Listen

Metro Morning is the audio version of Toronto's Yonge Street: a central urban artery that cuts through the heart of the city and beyond; connecting people, neighbourhoods, communities, diverse...

cbc.ca
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Our Mini Naturalists were soaking up the sun at Riverwood today for their first meeting of our spring session. We looked for animal signs, signs of spring, squished through the mud, splashed in puddles and enjoyed hiding seeds like a squirrel. It was a gorgeous day ☀️
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Our Cohort #1 Junior Naturalists enjoyed their first meeting of the spring session in the valley of Riverwood. They learned about maple trees, ball galls, played in the creek and found the best way to get icy hills ❄️🥶
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Mark your calendars! Registration for the @JrNaturalists Club will open on February 3 at 6:00 pm, and registration for the Mini Naturalists Club will open on February 4 at 6:00 pm. See the schedules for both programs at theriverwoodconservancy.org/… and theriverwoodconservancy.org/….
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We are pleased to announce the inaugural Gordon Research Conference on Urban Evolution and Ecology which will be held from Jan. 31 - Feb. 5, 2027. Please save the dates, and we look forward to welcoming you to beautiful Ventura Beach, California!
Poster advertising the inaugural Gordon Research Conference on Urban Evolution and Ecology held January 31-February 5, 2027 in Ventura Beach, California

ALT Poster advertising the inaugural Gordon Research Conference on Urban Evolution and Ecology held January 31-February 5, 2027 in Ventura Beach, California

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JOBS IN BIOLOGY: I'm giving a lecture on careers in biology next week for our students. I'd love to hear your perspective on the 3 most important things that you think impress potential employers? #biology #careers #jobs
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Our Junior Naturalists in Cohort #1 also went hunting for fungi today. They learned all about the fungal life cycle, closely examined pores and spores. Used teamwork to roll some huge logs. And had a special visit with a deer at the end of their meeting 🦌🍄‍🟫
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Our Junior Naturalist club (Cohort#2) had a beautiful day looking for living things on logs at The Riverwood Conservancy. It was fun-gi! 🍄‍🟫. We found so many types of mushrooms, lichen, moss, galls and more!
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Investing in Canada’s research! Support Our Science welcomes Budget 2025’s focus on next-gen researchers: $133M for international PhDs & postdocs, plus funding for chairs, faculty & infrastructure. Read more:tinyurl.com/ysvyf9uj #SupportOurScience #cdnpoli

Support Our Science Welcomes the Focus on Research and Innovation in Budget 2025

News ReleaseFrom Support Our ScienceNovember 5, 2025OTTAWA, ON - Support Our Science, an organization dedicated to advocating for increased funding for Canada’s 300,000 graduate students and postdo...

supportourscience.ca
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SOS is concerned about the SRSR motion requesting 25 years of disaggregated tri-council data. While we understand the data is intended to be anonymized, this wasn't explicitly stated in the motion – and the specific information requested could still enable #SupportOurScience
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Curator of Birds position, Royal Ontario Museum, Toronto, ON, Canada. Please pass the word and amplify! royalontariomuseum.applytojo…
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#letsgojays #worldseries #bluejays
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Are you a carnivore, omnivore or herbivore? Cohort #1 discovered that they have some incredible instincts for survival today. We visited Mountsberg Conservation Area for a trip into their Spooky Forest and hoped we wouldn’t get eaten or taken out by humans or natural disasters.
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If you like fall colours, then this Mini Nat meeting was the one for you. We met new trees as we played leaf bingo, made a leaf kebob collection and looked for living things in, on and under trees and logs. 🍁🍂🌲🌳🪾
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Cohort #2 were treated to a tour of the forests, fields and aquatic habitats of the Mountsberg Conservation Area today. They found a variety of living things, learned about their adaptations and went on a scavenger hunt.
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Aujourd’hui, SOS se joint à @cancoalition pour demander au @PMcanadien d’investir dans la recherche afin de soutenir les étudiants aux cycles supérieurs, les postdocs et tous les chercheurs dans le #budget2025. Investir dans les chercheurs, c’est investir dans le Canada.
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Cohort #1 spent the morning contributing to the scientific community. With the help of iNaturalist, participants searched high and low in the very own BioBlitz on the @uoftmississauga campus. Highlights included: coyote den, salmon, salamanders, insects, fungi and more!
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📢 Today, SOS joins @cancoalition in calling on the @PMcanadien to invest in research funding to support graduate students, postdocs & all researchers in #budget2025 Investing in researchers = investing in Canada’s sovereignty, prosperity & economy. #SupportOurScience #cdnpoli
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Our Junior Naturalist Club is in full swing once again. Today Cohort #2 followed the @UTM nature trail, leaving no pond, wildflower patch or forest unexplored. We also managed to tag 35 Monarch Butterflies before they head off to Mexico
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