About Us

Koffler Scientific Reserve at Jokers Hill – toward a sustainable future through research and education on the environment, in the environment.

Located on the Oak Ridges Moraine in King Township, north of Toronto, the Koffler Scientific Reserve at Jokers Hill is an internationally recognized site for cutting-edge research and education in biodiversity, ecology and conservation biology.

Murray and Marvelle Koffler

Murray and Marvelle Koffler

Its origin dates to 1995, when Drs. Murray and Marvelle Koffler donated their 350-hectare equestrian estate, Jokers Hill, to the University of Toronto. The gift made the University one of the largest landowners on the Moraine—and steward of a site of regional, provincial and national significance.

KSR-oldgrowth

Most of Jokers Hill is blanketed by a mosaic of wetlands and forests, including Ontario’s largest remaining stand of old-growth hardwood. In this Ecological Observatory, scientists monitor, measure and analyze natural processes as they unfold. The hayfield and pastures–relics of the equestrian days–are an Ecological Laboratory where researchers perform intensively manipulative experiments that subject theories about the environment to scientifically rigorous testing.

KSR-eastpondwetland

Courses from the University of Toronto bring students to Koffler Scientific Reserve for the type of hands on experience in natural environments that no campus can offer.

Learning is life long. Koffler Scientific Reserve offers instructive and entertaining learning experiences through special events, including informal guided Nature Walks and more intensive Natural History Workshops. A system of public walking trails, on the eastern end of Jokers Hill, offers an opportunity to experience an important piece of Ontario’s natural heritage.

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