Lynx Roux à Saint-Armand/Bobcat in Saint Armand

In 'Points North' podcast, researchers try to save ash trees from extinction

Are the ash trees doomed?

Mallory Yu, Daniel Wanschura - NPR, Great lakes Now - Mar 3, 2025

Kathleen Knight keeps looking for even more of these lingering ash trees. She finds them in parts of Ohio and Michigan and takes branches from these trees back to Jennifer Koch's lab. There, Jennifer clones them and runs tests to see if there's genetic resistance. And she discovers something amazing. These trees not only have resistance to the emerald ash borer, they actually kill EAB larvae. Scientists really didn't see that coming.

Lynx Canada et lynx roux du Pinacle de Freli/Canada Lynx and Bobcat on Frelighsburg Pinacle

Recent Canada lynx sightings point to success in Vermont’s conservation efforts 

Olivia Hagios - vtdigger.org - December 13, 2024

Over the summer, several Rutland County residents spotted what the Vermont Fish & Wildlife Department confirmed was a juvenile male Canada lynx. Since then, the department has confirmed more than 15 sightings of a Canada lynx moving through the state, suggesting Vermont’s conservation efforts were succeeding ... “The (land conservation) pattern we’re maintaining is integral to all our species,” said Jens Hilke, a conservation planning biologist for the department. “It’s a matter of maintaining what we’ve got instead of building something new.”

Endangered Canada lynx sightings continue in western Vermont

Klara Bauters - vtdigger.org - October 4, 2024, 2:0

“We’ve had 15 confirmed lynx sightings since August,” said a biologist with the Fish and Wildlife Department in a press release Friday. All signs point to the sightings being of the same animal, a young male lynx, she said.

 

Lynx sans frontières - Les corridors écologiques au secours des animaux

Conservation de la Nature Canada - 10 septembre 2019

Sous l’influence des changements climatiques, on estime qu’au Québec les habitats des espèces se transféreront d’environ 45 km par décennie vers le nord. La province pourrait devenir un refuge climatique pour plusieurs mammifères; elle risque donc de jouer un rôle primordial à l’échelle continentale dans l’adaptation aux changements climatiques. Pour contrer cette menace, il est impératif de consolider et restaurer les zones de connectivité dès maintenant. Ceci implique l’identification de ces secteurs clés pour le déplacement des espèces, l’acquisition de terres positionnées stratégiquement dans les corridors pour les protéger à long terme, l’intégration de ces secteurs dans les règlements d’urbanisme des municipalités et toute autre initiative citoyenne qui viserait à protéger un corridor écologique.

Lynx without borders

Nature Conservancy Canada - September 10, 2019

In order to survive, all animals, but especially large mammals, need to move to habitats where they can reproduce, feed and find shelter. Vanishing forests and landscape fragmentation is a direct threat to their survival unless we protect the passages, called ecological corridors, which connect natural areas together.Lynx requires a large home range, and its survival depends, in part, on maintaining these connectivity zones. The home range, which represents non-fragmented wooded areas or areas connected by corridors, are essential to a species’ life cycle and activities (reproduction, food, shelter, etc.).

Archive:

Vermont House bill would ban baiting for coyotes and other furbearers

Vermont House bill would ban baiting for coyotes and other furbearers

Olivia Gieger - VT Digger - March 2, 2025

Though the bill would apply to the broad category of furbearers — including foxes, bobcats or other smaller mammals — the discussion surrounding it has focused primarily on baiting for coyotes ... The Fish & Wildlife interim commissioner, Andrea Shortsleeve, summarized the department’s position in her testimony: “We are not aware of any population issues with furbearers in the state. We are not aware of any disease transmission of scavenging on carcasses, which occurs naturally on the landscape,” she said. “H.132 is trying to address a social values issue. This bill does not address any biological or conservation issues and is not based in science or wildlife management.”

Sauvegarder une montagne contre vents et marées

Canadian researchers trial nature trick to boost mood in winter

Canadian researchers trial nature trick to boost mood in winter

Ian Sample - the Guardian - 25 Dec 2024

“People really need something to help them get through the winter, especially after Christmas,” said Dr Holli-Anne Passmore, the psychologist leading the study at Concordia University of Edmonton in Alberta. “If people don’t like winter in the first place, they really don’t see anything good in it.” ... The participants will be instructed, while they are out and about, to pay attention to the natural amid the human-made – the frosty tree beside the tower block, the animal footprints on the snowy pavement, the icicles dangling from the warehouse roof – and make notes on how it makes them feel. Before and after the trial, named the Noticing Nature Intervention, participants will complete questionnaires so researchers can assess their levels of anxiety, stress, happiness, life satisfaction and sense of connection to the world. They will then work out whether noticing nature in a built-up environment provides something of a boost.

Conseiller(ère) en aménagement du territoire MRC Brome-Missisquoi

 

Lien: MRC Brome-Missisquoi

"Nightlife au mont Pinacle" d'Éliane Excoffier

Limited impact of soil inocula from arbuscular and ectomycorrhizal-dominated sites on root morphology and growth of four tree seedling species from a temperate deciduous forest

Limited impact of soil inocula from arbuscular and ectomycorrhizal-dominated sites on root morphology and growth of four tree seedling species from a temperate deciduous forest

Vlad Parasquive, Jacques Brisson, Etienne Laliberté, Pierre-Luc Chagnon - Plant Soil - 29 October 2024

We inoculated seedlings of ectomycorrhizal (ECM) and arbuscular mycorrhizal (AM) tree species with soils from ECM-dominated forests or AM-dominated open fields ... However, only Acer grew better and invested less in autonomous root-based foraging, when inoculated with AM-dominated soils ... Both AM species (Acer rubrum L. and Ulmus americana L.) had higher AM colonization rates when inoculated with AM-dominated open field soils. However, only Acer grew better and invested less in autonomous root-based foraging, when inoculated with AM-dominated soils. Responses of ECM species to soil inocula were more nuanced. Both species remained unresponsive to inoculation treatment. Populus tremuloides Michx. ECM colonization was higher when inoculated with ECM-dominated soils, while neither root morphology nor mycorrhizal colonization responded to inoculum origin for Quercus rubra L.

Links/Liens: ResearchGate, Springer-Verlag

Mycorrhizal dominance reduces local tree species diversity

Mycorrhizal dominance reduces local tree species diversity across US forests

Alexis Carteron, Mark Vellend & Etienne Laliberté - Nature Ecology & Evolution - 24 February 2022

... we analyse approximately 82,000 forest plots across the USA to show that both ectomycorrhizal-dominated and arbuscular mycorrhizal-dominated forests show relatively low tree diversity, while forests with a mixture of mycorrhizal strategies support a higher number of tree species. Our findings suggest that mycorrhizal dominance, rather than mycorrhizal type, shapes tree diversity in forests.

Link: Preprint

Mycorrhizal associations modify tree diversity−productivity relationships across experimental tree plantations

Shan Luo et al  - New Phytologist - 10 June 2024

... we tested tree species richness–community productivity relationships and the role of arbuscular (AM) or ectomycorrhizal (ECM) fungal-associated tree species in these relationships. Tree species richness had a positive effect on community productivity across experiments, modified by the diversity of tree mycorrhizal associations. In communities with both AM and ECM trees, species richness showed positive effects on community productivity, which could have resulted from complementarity between AM and ECM trees. Moreover, both AM and ECM trees were more productive in mixed communities with both AM and ECM trees than in communities assembled by their own mycorrhizal type of trees.