Ecological inventory of wetland sites in the Thompson Chain of Lakes and vicinity - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2000)

Ecological inventory of wetland sites in the Thompson-Fisher conservation easement - Hendricks, P. (Montana Natural Heritage Program, 2002)

Ecological land classification and vegetation description of Upper Bob Creek Ecological Reserve - Cornish, Beth. (Alberta Environmental Protection, Resource Data Division, 1997)

Ecological land classification of Beauvais Lake Provincial Park study area - Alberta. Alberta Environment. (Alberta Environment, 2001)

Ecological land classification of Big Hill Springs Provincial Park, Alberta - Sutherland, Ian. (Alberta Environmental Protection, 1998)

Ecological land classification of Carson-Pegasus Provincial Park - Alberta. Alberta Environment. (Alberta Environment, 1999)

Ecological land classification of Police Outpost Provincial Park and Outpost Wetlands natural area - Alberta. Alberta Environment. (Alberta Environment, 2001)

Ecological resources baseline report : technical report for the White Pine Power Project - United States. Bureau of Land Management. Nevada State Office. (Dames & Moore, 1983)

An ecological study of the Douglas fir vegetation in Banff and Jasper National Parks - Stringer, Paul William. (1966)

An ecological study of wildlife and fisheries in the Pembina and Sturgeon River Basins - Alberta. Dept. of Environment. Water Resources Division, (Government of Alberta, 1971)

An ecological survey in northern Michigan - Adams, Charles C. (Charles Christopher), 1873 -1955 (Wynkoop Hallenbeck Crawford co., state printers, 1906)

An ecological survey of Isle Royale, Lake Superior - Adams, Charles C. (Charles Christopher), 1873 -1955 (Wynkoop Hallenbeck Crawford Co., State Printers, 1909)

An ecological survey of the Porcupine Mountains - Darlington, Henry T. (Henry Townsend) 1875 -1964 (Darlington, 1923)

Ecological types of the upper Gunnison Basin : review draft - Johnston, Barry C. (U.S. Department of Agriculture, Forest Service, Grand Mesa-Uncompahgre-Gunnison National Forests, 1997)

Ecologically significant wetlands in the Missouri headwaters : Jefferson, lower Madison, lower Gallatin, and upper Red Rock River watersheds - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2004)

Ecologically significant wetlands in the Upper Yellowstone River watershed : including the Boulder, Clarks Fork Yellowstone, Shields, and Stillwater River drainages - United States. Environmental Protection Agency. (Montana Natural Heritage Program, 2001)

Ecology and conservation of wolves in a changing world - Carbyn, Ludwig N. 1941 - (Canadian Circumpolar Institute, University of Alberta, 1995)

Ecology and management of larix forests : a look ahead : proceedings of an international symposium, Whitefish, Montana, U.S.A. October 5-9, 1992 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1995)

The ecology and status of Mountain caribou and caribou range in Central British Columbia - Bloomfield, Michael Irwin. (University of Alberta, Dept. of Animal Science, 1979)

Ecology notes - Dana, Miss (1900)

Ecology of feral horses in western Alberta - University of Alberta. (University of Alberta, 1978)

Ecology of Shiras moose in Montana : big game research projects W-98-R and W-120-R, January 4, 1965-December 31, 1973 : final report - Montana. Department of Fish; Game (The Department, 1974)

Ecology of the aspen parkland of western Canada in relation to land use - Bird, Ralph Durham, 1901 -1972 (Research Branch, Canada Dept. of Agriculture, 1961)

Ecology of the Columbian ground squirrel in the Sheep River region - University of Alberta. Department of Zoology. (1962)

Ecology of the muskrat (Ondatra zibethicus spatulatus) on the Peace-Athabasca Delta, Wood Buffalo National Park - Westworth, David Arthur. (University of Alberta, Dept. of Zoology, 1974)

The ecology of the plants native to Dutchess County, New York - Roberts, Edith Adelaide, 1881 - (Conservation Committee of the Garden Club of America, 1924)

Economics of forestry : a bibliography for the United States and Canada, 1953-1954 - Berry, Margaret W. (Forest Service, U.S. Dept. of Agriculture, 1953)

Ecosystem goods and services southern Alberta : a framework for assessing natural asset condition - Alberta. Alberta Environment. (Alberta Environment, 2009)

Ecosystem management : rare species and significant habitats : proceedings of the 15th Annual Natural Areas Conference - Mitchell, Richard S., 1938 - (New York State Museum, University of the State of New York, State Education Dept, 1990)

The Edinburgh new philosophical journal (A. and C. Black [etc.], 1861)

Edward Gillett's eleventh annual catalogue of North American wild flowers, orchids, alpine, shrubs, aquatic, climbers and bog plants, rare ferns, etc. for 1888 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1888)

Edward Gillett's twelfth annual catalogue of North American wild flowers, orchids, shrubs, climbers : alpine, aquatic, and bog plants, rare ferns, etc. for 1889 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1889)

The effect of abnormal weather conditions during 1934 on vegetation in the northeast - Northeastern Forest Experiment Station (Radnor, Pa.) ([Northeastern Forest Experiment Station], 1935)

The effect of burning and mowing on Festuca hallii (Vasey) Piper (Festuca scabrella Torr.) - University of Alberta. (University of Alberta, 1980)

Effect of cold storage on development of suckers on aspen root cuttings - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1978)

The effect of fire on grasslands in the Alberta aspen parkland - University of Alberta. Dept. of Plant Science. (University of Alberta, Dept. of Plant Science, 1972)