[2] His work focuses primarily on impacts of forestry practices on the behavior, ecology and rapid evolution of birds and mammals.

Since 2000, he has devoted most of his work at the Forêt Montmorency [fr],[10] Université Laval research and teaching forest, the largest one of its kind in the World.

[7] For a more complete overview: Centre for Forest Research For several years (2013–2020), he has been vice-president of the Regroupement QuébecOiseaux and a member of its board of directors,[15] an NGO formerly known as "Quebec Association of ornithologists groups", whose aim is to "promote the study of birds and ensure their protection and their habitats" while allowing people to enjoy the field of ornithology in Quebec.

[17] In the 1990s, he was a member of a group of about ten volunteers who gave birth to the "Fondation pour la protection du patrimoine naturel" for the Quebec City region.

[19] For each season, the site presents a summary of bird species observed in each region of Quebec from various amateur ornithologists' clubs.

Formerly alarmed by global warming, he has lately become a vocal "lukewarmer", making accusations of attempting to thwart debate on the causes of climate change and the associated policy consequences.

[23][24] A self-described humanist, Desrochers says he actively promotes the use of the scientific method and contests the "alarmism" and misanthropy in current environmentalist discourse.