Of Trees in Trouble

Conserve Genetic Diversity of Trees in Trouble

Species at Risk

There are many reasons species become officially listed species at risk – either endangered, threatened or of concern. Threats include insects, diseases, habitat loss, and hybridization. In some cases more than one threat is at work. Other factors such as seed predation, poor harvest practices, natural rarity, and climate change effects can add to their vulnerability. There are also species that are in trouble though not yet officially listed.

Endangered Species Act
More than 200 species of plants and animals are at risk of disappearing from Ontario.

Learn how a plant or animal is classified as endangered, threatened, special concern or extirpated. The Committee on the Status of Species at Risk in Ontario (COSSARO) oversees this work.

How Species are listed — The Endangered Species Act


The FGCA specializes in supplying information to landowners about Butternut. Please explore our resources.


Threats to our forests’ genetic diversity include climate change, invasive species, and habitat loss.

Our forests’ genetic diversity is made of many species, each with many locally adapted populations, unique individuals, and genes. All this diversity helps keep our forests resilient in the face of many pressures, including climate change.

How can we manage forests under climate change?

Read more about climate change