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Plaisance (QC139)

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Plaisance (QC139)

Plaisance, Québec

Latitude 45.595°N
Longitude 75.091°W
Altitude 40 - 80m
Area 3.38km²

Site Description

The Plaisance Wildlife Reserve is located on the Ottawa River between the towns of Thurso and Papineauville, Québec. The wildlife reserve is composed of a mix of habitats - islands, deciduous forest, fields, bays, marshes and river. Approximately 60% of the reserve consists of aquatic habitats such as open water, emergent vegetation, submerged grassy areas and other wetlands. The remainder of the area is flooded mature deciduous forests and grassy fields. Many tree species typical of southern Québec are found on site, including White Walnut, Rock Elm, Ironwood, Bitternut Hickory, and Blue-Beech.

Birds

In spring, this site becomes a major staging area for Canada Geese: thousands of geese rest and feed in the fields and on the river. During peak migration, 30,000-35,000 Canada Geese can be found at the reserve. This represents 5% of the Atlantic Canada Goose population and is a globally significant waterfowl concentration. A small proportion of the migrants belong to the Mississippi Valley population (B. c. interior). It is thought that about 219,000 Canada Geese use the reserve each season. Several other species of waterfowl such as scaup, Common Goldeneye and Common Merganser also occur in large numbers in the spring.

Least Bittern, a nationally threatened species, nests at the Plaisance Wildlife Reserve. In 1996, it was estimated that there were at least 15 pairs nesting here. This is 1.5% of the Canadian population and possibly almost half of the Least Bittern population in Québec. In addition, from 1962 to 1989, one to three pairs of provincially rare Sedge Wrens nested at the reserve.

Conservation Issues

In 2002 the Plaisance Wildlife Sanctuary was officially declared as the Parc national de Plaisance; to strengthen advocacy efforts to protect natural ecosystems in this area. Conservation of habitats/biodiversity is achieved via a diversity of management activities and visitation/learning opportunities at this site.

IBA Criteria Habitats Land Uses Potential or Ongoing Threats Conservation Status
Canada Goose
Number Year Season
10,0002017Spring
3,0002016Spring
2,000 - 3,0002015Fall
2,000 - 5,0002015Spring
6,0002014Fall
2,000 - 6,0002014Spring
2,1002012Winter
2,000 - 3,0002012Spring
1,7002011Fall
3,8002011Spring
2,5002010Fall
2,0002010Spring
3,500 - 8,0002009Spring
5,0002008Spring
2,0002007Spring
5,0002006Fall
5,000 - 10,0002006Spring
2,000 - 20,0002004Spring
2,0002002Fall
50,0002002Spring
2,0002001Spring
50,0002000Spring
5,0001997Spring
6,000 - 10,0001996Spring
5,000 - 6,0001995Spring
6,000 - 18,0001994Spring
5,000 - 22,0001993Spring
5,0001992Winter
5,000 - 17,7501992Spring
7,500 - 16,0001991Spring
5,000 - 10,0001990Spring
30,0001990Fall
5,000 - 22,0001989Spring
219,0001989Other
5,000 - 16,0601988Spring
5,000 - 7,0001987Spring
5,000 - 6,0001986Spring
5,000 - 8,0001985Spring
5,000 - 20,0001984Spring
5,000 - 9,0001983Spring
8,000 - 15,0001982Spring
10,000 - 20,0001980Spring
Rusty Blackbird
Number Year Season
282017Spring
302016Spring
252015Fall
582014Spring
402013Spring
Least Bittern
Number Year Season
301995Summer
Loggerhead Shrike
Number Year Season
12002Spring
Waterbirds
Number Year Season
20,0001990Spring
20,0001990Winter