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Region profile

Great Bear Plains

Great Bear Plains is a region extending from Great Slave Lake through to the Mackenzie Delta, characterized by short, cool summers and long, very cold winters, with predominant open, stunted stands of black spruce and tamarack, underlain by shale and limestone with extensive permafrost, and supporting wildlife like caribou, moose, and bear.

Zone

Prairie

Common Name

Great Bear Plains

CEC Level III Code

3.3.1

CEC Level II Code

3.3 Taiga Plains

Overview

About This Region

The Great Bear Plains ecoregion, located in the Canadian Northwest Territories, is characterized by its cold climate, continuous permafrost, and dominant Boreal Forest and tundra ecosystems. Pollinators like bees, flies, and beetles face extreme environmental challenges, including short, cold summers that limit foraging time and the overall growing season. Low species diversity and widespread permafrost also restrict floral resources. Climate change impacts, such as warming and altered precipitation, pose risks to this fragile region, potentially impacting the limited flowering plant communities and the survival of native arctic pollinators essential for local biodiversity.

Region facts

At a glance

AliasesGreat Bear Plains, CEC 3.3.1, Great Bear Plains ecoregion
Geographic Range
The Great Bear Plains region begins at the northwestern shores of Great Slave Lake and extends northwesterly through the Northwest Territories to the Mackenzie Delta.
Climate SnapshotThe Great Bear Plains climate is characterized by short, cool summers and long, very cold winters, with mean annual precipitation ranging between 200 and 300 mm.
Terrain ProfileThe terrain is generally below 350 meters above sea level, underlain by shale and limestone strata, and covered by undulating moraine and outwash deposits with extensive, discontinuous permafrost.
Vegetation CoverThe predominant vegetation consists of open, very stunted stands of black spruce and tamarack, with a ground cover of dwarf birch, willow, ericaceous shrubs, and moss, and low shrub tundra is also common.
Wildlife HabitatThe Great Bear Plains are home to caribou, moose, grizzly and black bears, wolf, coyote, arctic and red fox, snowshoe hare, muskrat, and beaver, along with common birds like spruce grouse, raven, osprey, and waterfowl.

Eco snapshot

What shapes this region

Climate pattern

  • Short growing season; timing can shift a lot by microclimate (small local weather differences) like wind shelter, slope, and proximity to water.
  • Cold-season conditions dominate much of the year; plants and pollinators rely on a brief, intense flowering period.
  • Wetlands and river influence can create pockets that green up differently than drier uplands.

Vegetation profile

The predominant vegetation consists of open, very stunted stands of black spruce and tamarack, with a ground cover of dwarf birch, willow, ericaceous shrubs, and moss, and low shrub tundra is also common.

Wildlife profile

The Great Bear Plains are home to caribou, moose, grizzly and black bears, wolf, coyote, arctic and red fox, snowshoe hare, muskrat, and beaver, along with common birds like spruce grouse, raven, osprey, and waterfowl.

Why pollinators matter here

  • Pollinators help native plants set seed during a short window when flowering is concentrated.
  • River corridors and sunny openings can act like “highways” of bloom and shelter.
  • Habitat can be patchy—small flower-rich areas may be especially important.
  • Avoiding pesticides helps protect pollinators where recovery time is slow in cold climates.

Seasonal timing

Planting seasons

Timing varies by microclimate; use this as a flexible guide.

Seasonal timing

  • After snowmelt: Watch for the first natural blooms; this is when early food can be scarce.
  • Main growing window: Focus on continuous bloom and keeping plants watered if soils dry out.
  • Late season: Prioritize late-blooming flowers and leave stems/leaf litter for shelter.

Quick seasonal checklist

  • Choose plants suited to your exact site (wet vs. dry, sunny vs. shaded).
  • Aim for at least 3 bloom periods (early / mid / late) during the local growing window.
  • Add nesting habitat (bare ground, stems/wood, and winter shelter).
  • Keep it pesticide-free.

Yearly needs

Pollinator calendar

What pollinators need throughout the year, and what to do about it.

Late winter / early springEarly food as soon as conditions allow; safe places to emergeProtect early-blooming native patches; avoid spring pesticide use; leave some leaf litter and stems until warmer weather is established
SpringA ramp-up of nectar/pollen; nesting sitesPlant or protect early bloomers; keep some bare, well-drained soil for ground nesters; add a small container planting if ground planting is difficult
SummerSteady bloom; water; shade/shelter on hot/windy daysMaintain continuous flowers; provide a shallow water source with landing stones; avoid mowing/clearing all flowers at once
Late summer / fall“Last chance” nectar/pollen; places to overwinterPrioritize late-blooming natives; stop deadheading some plants so they can set seed; leave stems standing for cavity nesters
WinterUndisturbed shelterDon’t over-tidy: leave stems, seed heads, and some natural debris; plan next season’s bloom sequence

Seed mix concept

A Billion Small Steps Seed mix

For the Great Bear Plains, a “seed mix” approach works best when it’s site-matched and focused on hardy natives that can complete their life cycle in a short season.

Spring starter

Spring starter: Early-blooming shrubs and low plants (often more reliable than seed alone).

Summer bridge

Summer bridge: Mid-season wildflowers that thrive in sunny openings.

Fall finisher

Fall finisher: Late bloomers (where they can mature) to extend food availability before winter.

What You Can Do

Make a difference for native habitats.

Turn this knowledge into action. Whether you plant a single pot or a whole garden, you are building a vital bridge for local biodiversity.

Join the movement to restore our shared habitats.

Native plants

Plants that thrive in this region

Alders (*Alnus* spp.)

Alders

Alders are fast-growing trees in the genus Alnus that are especially useful in damp spots and along edges where you want quick cover and early-season pollen for insects.

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Asters (*Symphyotrichum* spp.)

Asters

Asters are late-season wildflowers that bring a burst of daisy-like blooms when many gardens are winding down, making them a reliable choice for pollinator-friendly planting.

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Birches (*Betula* (genus))

Birches

Birches are graceful trees in the genus Betula, known for their often light-colored bark and early-season pollen and catkins that support springtime insects.

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Blueberries & huckleberries (*Vaccinium* (genus))

Blueberries & huckleberries

Blueberries and huckleberries (genus Vaccinium) are berry-producing shrubs with spring flowers that can support pollinators and later feed people and wildlife—great for gardens, schoolyards, and even large containers.

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Clovers (*Trifolium* spp.)

Clovers

Clovers are small, easygoing plants in the genus Trifolium that can add nectar and pollen to gardens, lawns, and pots while helping cover bare soil.

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Fireweed (*Chamerion* spp.)

Fireweed

Fireweed is a tough, fast-growing wildflower in the genus Chamerion that brings bright pink blooms and lots of pollinator activity to sunny, open spaces.

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Fleabanes (*Erigeron* spp.)

Fleabanes

Fleabanes (genus Erigeron) are easygoing wildflowers with daisy-like blooms that can brighten gardens, schoolyards, and balcony pots while offering steady nectar and pollen for many small pollinators.

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Goldenrods (*Solidago* spp.)

Goldenrods

Goldenrods are tough, sunny wildflowers in the genus Solidago that light up late-season gardens with golden blooms and provide reliable nectar and pollen when many other flowers are fading.

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Kinnikinnick (Arctostaphylos spp.)

Kinnikinnick

Kinnikinnick is a tough, low-growing evergreen groundcover in the genus Arctostaphylos (often called bearberry) that forms a tidy mat and offers small spring flowers followed by red berries.

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Manzanitas (West) (Arctostaphylos spp.)

Manzanitas

Manzanitas are tough, beautiful western shrubs with urn-shaped flowers that can feed early-season pollinators and evergreen leaves that keep gardens looking good year-round.

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Poplars, aspens & cottonwoods (*Populus*)

Poplars, aspens & cottonwoods

Poplars, aspens, and cottonwoods (genus Populus) are fast-growing trees best known for their fluttering leaves and soft “cottony” seeds. They can support early-season pollinators with spring catkins, but they’re also big, thirsty, and often short-lived in small yards—so they’re best chosen with space and roots in mind.

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Rushes (*Juncus* spp.)

Rushes

Rushes are tough, grass-like wetland plants (genus Juncus) that thrive in damp soil and help create calm, sheltered habitat at the edges of ponds, rain gardens, and low spots.

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Sedges (*Carex* (genus))

Sedges

Sedges (genus Carex) are grass-like plants that form tidy clumps and thrive in many garden conditions, especially where soil stays a bit damp. They add texture, cover bare ground, and can support small wildlife by providing shelter and nesting material.

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Willowherbs (*Epilobium* spp.)

Willowherbs

Willowherbs (genus Epilobium) are easygoing wildflowers that pop up in sunny, open spots and offer simple, nectar-rich blooms that many small pollinators can use.

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Willows (*Salix* spp.)

Willows

Willows are fast-growing trees and shrubs in the genus Salix that offer some of the earliest pollen and nectar of the year, making them a strong choice for pollinator-friendly yards, parks, and school grounds.

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Yarrow (*Achillea millefolium*)

Yarrow

Yarrow is a tough, easygoing wildflower that brings long-lasting blooms and steady pollinator visits to gardens, schoolyards, and even containers.

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Pollinators

Pollinators active in this region

Bee flies (Family Bombyliidae)

Bee flies

Adults visit flowers for nectar and can move pollen between blooms; their presence is a sign of diverse, functioning habitats.

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Bumble bees (Genus Bombus)

Bumble bees

Bumble bees are important pollinators of many wildflowers and garden plants, helping ecosystems and food crops reproduce.

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Dance flies (Family Empididae)

Dance flies

Many visit flowers for nectar and can move pollen between blooms while also playing important roles in local food webs.

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Flower flies / hoverflies

Adults visit flowers for nectar and pollen, and many species’ larvae help keep plant-eating pests in check.

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Geometer moths (Family Geometridae)

Geometer moths

Adults can help move pollen as they nectar at flowers, and their caterpillars are an important part of local food webs.

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Hawk / sphinx moths (Family Sphingidae)

Hawk / sphinx moths

They can move pollen between flowers while feeding on nectar, especially for blooms that open or scent up in the evening.

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Small nectar moths (micro-moths) (Multiple families (varies))

Small nectar moths (micro-moths)

Many small moths move pollen while feeding on nectar, supporting wild plants and garden blooms—especially in the evening and at night.

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Soldier flies (Family Stratiomyidae)

Soldier flies

Many adults visit flowers for nectar and can move pollen between blooms while feeding.

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Whites & sulphurs (Family Pieridae)

Whites & sulphurs

They visit a wide range of flowers for nectar and can help move pollen between blooms as they feed.

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