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Deboullie Ecoreserve

T15 R9 WELS

Vital Statistics

Size: 7,253 acres
Regulated: 1,086 acres
Non-Regulated: 6,167 acres
Upland: 6,213 acres
Forested Wetland (NWI): 108 acres
Non-Forested Wetland: 49 acres
Open Water: 897 acres
Roads: unimproved-4 miles
Roads: trails-17 miles
Roads: Total-21 miles
Biophysical Region: St. John Uplands
BPL Region: North

Map showing location of Deboullie Ecoreserve

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Exemplary Natural Communities

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Also see the Natural Community Fact Sheet page.

Scientific Name	Common Name	State Rank	Global Rank
Boreal Circumneutral Outcrop	Circumneutral Outcrop	S2	GNR
Labrador Tea Talus - Dwarf Shrubland	Cold-air Talus Slope	S2	G3G5
Cedar - Spruce Seepage Forest	Evergreen Seepage Forest	S4	GNR
Spruce - Fir - Broom-moss Forest	Lower Elevation Spruce-Fir Forest	S4	GNR
Beech - Birch - Maple Forest	Northern Hardwoods Forest	S4	G3G5
Circumneutral Riverside Seep	Riverside Seep	S4	GNR
Spruce Talus Woodland	Spruce Rocky Woodland	S4	G3G5

Photo: Open talus slope on Deboullie Mountain

Rare Plants

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See the Rare Plant Fact Sheet list for more information about individual species.

Scientific Name	Common Name	State Rank	Global Rank	State Status
Juncus alpinoarticulatus	Alpine Rush	S3	G5T5?	SC
Minuartia rubella	Arctic sandwort	S1	G5	T
Eleocharis quinqueflora	Few-flowered Spikerush	S2	G5	SC
Dryopteris fragrans	Fragrant Cliff Wood-fern	S3	G5	SC
Stuckenia filiformis var. alpinus	Northern Slender Pondweed	S2	G5T5	SC
Woodsia alpina	Northern woodsia	S1	G4	T
Woodsia glabella	Smooth woodsia	S1	G5	T

Photo: Aerial view of Deboullie Preserve

Rare Animals

There are no documented occurrences of rare animals within this Ecoreserve.

For more information on rare animals in Maine, visit the Maine Department of Inland Fisheries and Wildlife.

Description

The Deboullie Ecological Reserve is a microcosm of the landscape of northern Aroostook County, with lakes, ponds, low mountains, and stream valleys providing a variety of physical settings. Fire and logging have both played a part in the reserve's history; however, because of steep slopes and lakeshore, much of the reserve has received little cutting in the recent past, with some isolated older stands.

The large ponds include Deboullie, Gardner, and Black Ponds; smaller ponds (Mud Pond, Pushineer, Little Black, etc.) are scattered throughout the reserve. The reserve encompasses the entire shorelines of 11 ponds, with surface waters totaling almost 900 acres. These ponds are well known as sport-fishing areas, as long as one is willing to make the effort to get to them. Blueback trout (a.k.a. the landlocked arctic charr), an unusual variety of trout, occur in several of the lakes. Some pondshores have gradual transitions to upland, such as the Mud Pond basin, with various wetland habitats (e.g. Acidic Sedge Fens and Northern White Cedar Swamps). Other pondshores, where slopes come steeply into the pond basin, have an abrupt transition from aquatic to upland habitats.

The mountains ringing the lakes include areas of spruce slope forests, northern hardwood forests, and exposed talus, reflecting the variety of exposures and slopes. The steep slopes of Deboullie and Black Mountains (and probably Whitman Mountain) support several stands of old-growth spruce (some over 200 years old); though uncut, all have been heavily damaged by budworm and subsequent windthrow. The ridges and upper slopes on Black Mountain and Whitman Mountain support mature Beech - Birch - Maple Forests, with trees over 50 cm dbh, fallen trees, and canopy gaps. The Cold-Air Talus Woodlands on Deboullie and Gardner Ponds (which are so sparsely treed that "woodland" is an exaggeration) are particularly noteworthy, with similar communities found in only a few other places in the state.

Away from the ponds and their hills are several broad stream valleys with extensive mature cedar forests along the drainages. The cedar forms a dense canopy over sedges, sphagnum, and boreal herbs.

Resources

Deboullie Management Unit-Management Plan. 1987. Bureau of Public Lands, Department of Conservation, Augusta, Maine. 47 pp.
Kern, M.J. 1985. Natural Resources Inventory and Critical Area Survey of T15 R9. Bureau of Public Lands, Department of Conservation, Augusta, Maine. 169 pp.

Photo: Image of an ecologist working a survey transect at along a glacial erratic at Deboullie Preserve

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