There are many great associations and not for profit groups concerned about wildlife, invasive species, protecting forests, advancing the cause of nature. Here are some links to great sites

Canadian Wildlife Federation

Carolinian Canada GoWildGrowWild

Food Not Lawns

Identify your Tree

LEAF – Local enhancement and appreciations of forests

LEN – London Environmental Network

Salthaven Wildlife Rehabilitation and Education Center

Nature London

Ontario Invasive Plant Council

Ontario Trees and Shrubs

Pollinators:

• Ontario Planting Guides for pollinators
• OMAFRA Pollinator Info for Gardeners
• Province of Ontario – Pollinator Health

Reforest London

St. Clair Region Conservation Authority

Seeds of Diversity

Thames Region Ecological Association

Thames Talbot Land Trust International Society of Arboriculture – Trees Are Good

Upper Thames Conservation Authority