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Help Habitat Hot Spots

A Primer on Habitat Hot Spots

In most cases, wildlife can’t lie. When an organism thrives, it usually means its habitat is doing fine; when it wanes, something is wrong. Here, we take a look at the status of habitat in 10 regions across Canada. These profiles are followed by community projects for habitat hot spots.

Areas were selected to be representative of a habitat type: the marshes of Lake Champlain, for instance, face many of the same threats as other wetlands across Canada. Almost all the habitats we discuss are close to or amid human habitation or activity. This was no accident — coming to grips with declining biodiversity means learning more about our own role in life’s delicate web. Habitat is not something that can be defined within a sharp, clean border. It is not just a place, but a complex relationship between life, land, air, and water. Here are 10 places where Canadians play a key role in shaping that relationship.

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Vancouver Island

The largest island on North America’s west coast has the most diverse range of ecosystems in Canada. It is a region of inlets, islands, river valleys, and mountains. Habitats vary from stands of giant Douglas fir and alpine meadow to temperate rainforest. Offshore, sea otters gambol in kelp forests. Tidal zones and estuaries play host to a stunning array of waterfowl and crustaceans.

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South-Central British Colombia

The southern interior of British Columbia contains a diverse array of habitats that reflect its dry climate and mountainous terrain. The grasslands of the south Okanagan Valley are considered to be one of the most endangered ecosystems in Canada. Ponderosa pine forests, growing at the northern limit of their range, cover valley slopes, while dry interior Douglas fir, lodgepole pine, and montane spruce occur at higher elevations.

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North Yukon

From the valleys of the British and Ogilvie mountains, the porcupine caribou move south to the coastal plain, crossing the Firth River to feed on nutritious vascular plants. There, where cold breezes drive away tormenting mosquitoes, the caribou share the land with arctic foxes, wolves, musk oxen, Dall’s sheep, ptarmigans, snowy owls, arctic terns, tundra swans, and other nesting birds.

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Mixed Grasslands

A broad, rolling plain of native grasslands runs through southern Saskatchewan and Alberta. Despite the predominance of prairie in this broad swath, the mixed-grasslands landscape is diverse and includes sand dunes, potholes, numerous creeks and valleys, and badlands. Wheat grasses, spear grasses, and blue grama grass dominate on loamy soils. Sandy areas house a unique community of grasses and shrubs.

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Tall-grass Prairie

A mixture of native wildflowers and grasses, tall-grass prairie is one of the rarest habitats in Canada. Substantial tracts remain only in southern Manitoba, where all but 1 per cent has been converted to agricultural, industrial, or urban use or invaded by forest cover because of fire suppression.

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Great Lakes

The Great Lakes Basin holds 20 per cent of the world’s fresh water, while its shores
support one-tenth of North America’s population. Yet intertwined along 16,000 kilometres of crowded coastline are many diverse ecosystems, including freshwater marshes, sand dunes, and estuaries.

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Mixed-wood Plains

Mixed forest consisting of sugar maple, yellow birch, eastern hemlock, and eastern white pine once covered most of the region stretching from Quebec City through the lower Great Lakes. Only 10 per cent of this hardwood forest remains. This region includes Canada’s only Carolinian forest ecosystem.

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Quebec Wetlands

Wetlands throughout southwestern Quebec, particularly along the St. Lawrence and Richelieu river valleys and Lake Champlain, help control water flow and maintain water quality. Grasses, sedges, cattails, and lilies support large populations of turtles, fishes, muskrats, minks, otters, and raccoons, along with millions of ducks and geese.

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Coastal Plain

In southwestern Nova Scotia a stretch of flat lake-and-bog-dotted lowland extends toward the sea. Formed of material washed down from ancient mountains onto the continental shelf, it supports a wide range of specialized plants, 10 of which COSEWIC lists as at risk.

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South Avalon-Burin Oceanic Barrens

Southern tips of the Avalon and Burin peninsulas support dense carpets of moss and fruticose lichen along with low-growing ericaceous shrubs. The moss heath of this region is unique to North America. Locals call it caribou moss because it is eaten by woodland caribou that migrate into south Avalon in summer to escape the hordes of blackflies that plague them further inland.

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Conserve Habitat Hot Spots in Your Community

Chances are a unique habitat near you is in danger of being drained, paved over, dug up, or dumped upon. Some spots are destroyed before people even know they exist. Help avoid a habitat disaster by getting key lawmakers to take your concerns seriously. But first, do your homework.

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Conserve the Carolinian Life Zone

The amazing Carolinian Life Zone in south-western Ontario boasts a greater variety of wildlife than any other ecosystem in Canada. This smorgasbord of habitats includes tall grass prairies, sand dunes, marshes, and southern-type deciduous forests. Now only 10 per cent of the original unspoiled area remains; the rest has been swallowed up by cities and farmland. It’s no surprise that more than 40 per cent of the species designated as vulnerable, threatened, or endangered in Canada happen to live in this region. The Carolinian Life Zone is literally overflowing with wildlife.

In fact, many species of plants and animals native to the area can be found nowhere else in the country. The prairie white fringed orchis, which is threatened worldwide, blooms here. The Karner blue butterfly flutters, the Cooper’s hawk soars, the black rat snake slithers, and the orange spotted sunfish splashes here too. All of these species are in peril. Today, conservationists, landowners, and government and private agencies are trying to ensure that what remains of this precious habitat will be protected for all time.

If you live in the Carolinian Life Zone, here’s your chance to learn a lot about the wonderful wildlife around you. At the same time, you ’II be helping one of our richest habitats stay healthy.

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Save B.C.’s Richest Habitat

The South Okanagan and Lower Similkameen area is out of this world! It’s one of Canada’s four most endangered habitats. (The others are the Garry oak meadows of Vancouver Island, the tall-grass prairies of Manitoba and Ontario, and the Carolinian Life Zone of southwestern Ontario.)

Many species that live happily in the South Okanagan and Lower Similkameen aren’t found anywhere else in Canada — and some of them may not live anywhere else in the world. The area forms a rough rectangle between the Similkameen and Okanagan rivers, running south from Keremeos and Penticton down to the U.S. border.
The hot, dry climate of the region is very popular with people too. Since European settIers first arrived, four species have been extirpated because of habitat loss and over-hunting — the sage grouse, sharp-tailed grouse, burrowing owl, and the white-tailed jack rabbit. A fifth species, the eastern short-horned lizard, may also have been extirpated. Today, land developments continue to squeeze many other rare species out of their homes — species like the white-headed woodpecker, sage thrasher, flammulated owl, Nuttall’s cottontail, desert night snake, and spotted and pallid bats.

There are no laws to protect much of this rich habitat from being damaged. A lot of people, including developers and municipal employees, have no idea that the area is so important to so many species. Thirty-one per cent of British Columbia’s threatened or endangered vertebrates depend on this tiny slice of the province to survive.

You can be a huge help to wildlife by educating the public — and yourself — about the
amazing South Okanagan and Lower Similkameen area. The following guidelines will help make your effort a success:

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Conserve Coastal Plant Habitat

Nova Scotia is home to some very unusual plants. One of them is the thread-leaved sundew, which is listed as endangered by the Committee on the Status of Endangered Wildlife in Canada. It grows in bogs and is now at the centre of quite a controversy. A developer planned to dig peat from a bog where this insect-eating wildflower grows. However, the 36-hectare project has been blocked- at least for now — by an environmental assessment review ordered by the provincial government.

Such a review looks at wetlands, soil, plants, and wildlife that could be threatened by developments. Often a public presentation is held so that people can voice their opinions. In some cases, a project may be cancelled if a review shows that wildlife could be harmed.

The thread-Ieaved sundew is one of a small group of species included in Nova Scotia’s rare coastal plain flora. Several plants in this group, such as the water-pennywort, pink coreopsis, and Plymouth gentian, grow nowhere else in Canada. Most are found around bogs and along gently sloping sand and gravel freshwater shores near the East Coast. Also among these coastal plain species are the buttonbush, white fringed orchis, common meadow-beauty, swamp-milkweed, Long’s bulrush, and golden crest.

If you know a shore line where any of these rare species grow, spread the word. Prepare and distribute a fact-sheet to alert landowners and lake users about the importance of their shore-line habitats. Include the following suggestions:

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Foster Old-growth Forests and Rain Forests

Many creatures can survive only in very particular habitats. The Newfoundland pine marten, for example, depends on old-growth forests full of fallen logs, rotting leaves, and stumps. Cleared woods and new forests replanted after logging fail to serve the needs of this species. Nearly 70 per cent of this marten’s habitat has already been lost through logging.

Although other Canadian provinces and territories have pine martens, the Newfoundland species is found nowhere else in the world. A recovery team is now developing a plan to make sure the Newfoundland pine marten will never disappear.

Countless other species of wildlife depend on rain forests for their survival. Fortunately, a lot of people are working hard to save these exotic habitats worldwide — especially in South America. But let’s not forget that Canada also has some very important rain forests, which are home to an amazing diversity of wildlife. One of these rain forest zones is found along the coast of British Columbia, while another is located in the southeastern part of the province. It’s so soggy in some parts of the coastal rain forest that trees have trouble even growing. In fact, some trees are 400 years old — but only three metres high!

These special habitats are being threatened by flooding from hydro-electric projects, logging, and urbanization. Over 100 species of rare plants are found in the B.C. coastal rain forest alone, and 37 of the wildlife species that live there are at risk. Many newly discovered species of spiders, mites, and insects are now being studied there.