Marc Johnson (he/him)

@evoecolab.bsky.social

Professor of Biology. Ecology, evolution, genetics, in natural and urban habitats. VP of Canadian Society of Ecology and Evolution. Passionate about connecting kids with nature, advocating for grad students, postdocs, science funding. Proud Canadian!

Excited to share our new paper: Predictions from evolutionary theory for urban environments. We brought together empiricists and mathematical theorists to find common ground on where and how we can work together to better understand urban evolution onlinelibrary.wiley.com/doi/abs/10.1...

Predictions From Evolutionary Theory for Urban Environments

Urbanization drives rapid and extreme environmental change, profoundly shaping the ecology and evolution of populations. In this Perspective, we call for the integration and development of evolutiona...

onlinelibrary.wiley.com

The meetings of the CSEE/SCÉÉ have benefitted from hundreds of volunteers who helped further ecology and evolution research in Canada. Here are those from the 2025 meeting in Sherbrooke. My contributions were to talk others into doing most of the work and suggesting the color of the T-shirts.

Most of the volunteers for the 2025 meeting of the CSEE/SCÉÉ in Sherbrooke, Québec. The T-shirts illustrate some of the wildlife on Mt Bellevue, next to the UdeS campus. The meeting featured a land acknowledgment where I uttered a few words in Abenaki, a daycare, a nursing room and a substantial amount of French being spoken. The CSEE/SCÉÉ is strong on EDI, a key to its success.
CSEE_SCEE@csee-scee.bsky.social · 3mo ago

🎉💚The Canadian Society of Ecology and Evolution turns 20 this year: As we head toward the annual meeting, we invite you to share your favourite memories, photos, and throwbacks from past CSEE meetings and events! Tag your post with hashtag #SCEECSEE20

It might be #SCEECSEE20 anniversary, but it's also St. John's, NL 10th anniversary! We had rain, fog, a Newfoundlander dog at the mixer, a baby on a SWEEET panel, row houses, icebergs, gannets, screech ins, and more. It was a time! Photo credit to folks on that other app using the conf. hashtag.

CSEE 2016 tote bag with the logo "From windswept land to spindrift swirl"SWEEET 2016. Panel members are in discussion, one of which is a baby, while the audience listens. Watson the Newfoundlander dog at the welcome mixerOutdoor photo with a sign in the foreground reading "Wind and Fog" and dense fog in the background.
CSEE_SCEE@csee-scee.bsky.social · 3mo ago

🎉💚The Canadian Society of Ecology and Evolution turns 20 this year: As we head toward the annual meeting, we invite you to share your favourite memories, photos, and throwbacks from past CSEE meetings and events! Tag your post with hashtag #SCEECSEE20

Chaque congrès de la SCEE est un souvenir préféré pour nous, et cette photo du Conseil à #CSEE2013 à Kelowna nous rappelle de très beaux moments. Merci à l’ancien président S. Barrett d’avoir rassemblé un véritable trésor de souvenirs sur l’écologie et l’évolution au Canada et ailleurs. #SCEECSEE20

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CSEE_SCEE@csee-scee.bsky.social · 3mo ago

🎉💚La Société canadienne d’écologie et d’évolution célèbre ses 20 ans en 2026. À l’approche du congrès annuel, nous vous invitons à partager vos souvenirs préférés, photos et moments marquants des anciens congrès et événements de la SCEE! Identifiez votre publication avec hashtag #SCEECSEE20

Happy anniversary CSEE! I co-organised the first meeting with Graham Bell, in Montréal, in 2006. It was exciting to see the birth of this new Society. Now CSEE has reached maturity and I’m getting closer to retirement! Sad I’m not joining you this year

CSEE_SCEE@csee-scee.bsky.social · 3mo ago

🎉💚The Canadian Society of Ecology and Evolution turns 20 this year: As we head toward the annual meeting, we invite you to share your favourite memories, photos, and throwbacks from past CSEE meetings and events! Tag your post with hashtag #SCEECSEE20

🎉💚La Société canadienne d’écologie et d’évolution célèbre ses 20 ans en 2026. À l’approche du congrès annuel, nous vous invitons à partager vos souvenirs préférés, photos et moments marquants des anciens congrès et événements de la SCEE! Identifiez votre publication avec hashtag #SCEECSEE20

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🎉💚The Canadian Society of Ecology and Evolution turns 20 this year: As we head toward the annual meeting, we invite you to share your favourite memories, photos, and throwbacks from past CSEE meetings and events! Tag your post with hashtag #SCEECSEE20

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A fond post-CSEE meeting memory was meeting with Prof. Graham Bell after #CSEE2025 in Sherbrooke, co-founder and the first president of CSEE. As we sipped espresso at his favourite cafe in Montreal he shared with me the story of how CSEE came to be 20 years ago. A magical moment #SCEECSEE20

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CSEE_SCEE@csee-scee.bsky.social · 3mo ago

🎉💚The Canadian Society of Ecology and Evolution turns 20 this year: As we head toward the annual meeting, we invite you to share your favourite memories, photos, and throwbacks from past CSEE meetings and events! Tag your post with hashtag #SCEECSEE20

A highlight of every CSEE meeting for me is getting to see so many past and present members of our lab, and seeing the amazing things they have done and outstanding ecologists and evolutionary biologists they have become. This photo from a few years ago in Montreal #SCEECSEE20

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CSEE_SCEE@csee-scee.bsky.social · 3mo ago

🎉💚The Canadian Society of Ecology and Evolution turns 20 this year: As we head toward the annual meeting, we invite you to share your favourite memories, photos, and throwbacks from past CSEE meetings and events! Tag your post with hashtag #SCEECSEE20

☘️New paper!☘️ Very excited that my 3rd and final data chapter of my PhD with @evoecolab.bsky.social is now published in JEB! We manipulated precipitation and herbivory at field sites in Ontario and Louisiana to test their effects on white clover HCN chemical defense phenotypes

Journal of Evolutionary Biology@jevbio.bsky.social · 4mo ago

A field experiment by @lucasjalbano.bsky.social et al. assessing the roles of drought, herbivory, and local climate on cyanogenesis cline formation and local adaptation in Trifolium repens: doi.org/10.1093/jeb/...

Joyeuse Journée internationale des femmes! Nous sommes reconnaissants envers les femmes extraordinaires qui dirigent (et qui ont dirigé) la SCEE, ainsi qu’envers toutes les femmes écologistes et biologistes de l’évolution à travers le Canada pour leur travail essentiel.

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Happy International Women’s Day! We are grateful to the incredible women who lead (and have led) the Canadian Society of Ecology and Evolution, & to all the women ecologists & evolutionary biologists across Canada for their important work. You help make our society, country, & planet a better place!

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☘️NEW PAPER☘️ I am incredibly excited to announce that the centrepiece of my PhD was just published in Ecological Monographs! This was a massive transcontinental common garden experiment using white clover with researchers from UToronto 🇨🇦, UL Lafayette 🇺🇸, CNRS 🇫🇷, and SLU 🇸🇪 doi.org/10.1002/ecm....

doi.org

Happy holidays from CSEE! ☃️ Now’s a great time to (re)join. Learn more: csee-scee.ca. Faculty: consider gifting CSEE memberships to students & postdocs! They're just $30/person and grant-eligible.

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