Canadian Prairies - Present Landscapes and Environments

Aspen Ecology

Bailey, A. W. 1994

Aspen Parkland: Then and Now. Alberta Archaeological Review 24:21-23.
AEU HSS E 78 A33 A325

Bird, R. D. 1961

Ecology of the Aspen Parkland. Contribution No. 27, Research Station, Canada Department of Agriculture, Winnipeg, Manitoba. Research Branch, Canada Department of Agriculture, Ottawa, Ontario, Canada. ix + 155 pages.
AEU SCI QH 106.2 P7 B62

Brayshaw, T. C. 1965

Native Poplars of Southern Alberta and Their Hybrids. Department of Forestry Publication No. 1109. Department of Forestry, Ottawa, Ontario, Canada.
AEU SCI SD 145 P97 No. 1109 Delineates six species that occur in southern Alberta: trembling aspen (Populus tremuloides), balsam poplar (P. balsamifera), black cottonwood (P. balsamifera ssp. trichocarpa), narrowleaf cottonwood (P. angustifolia), plains cottonwood (P. deltoides var. occidentalis), lanceleaf cottonwood (P. x acuminata). Notes hydridization occurs between taxa ("a hybrid swarm").

Campbell, C., I. D. Campbell, C. B. Blyth, and J. H. McAndrews 1994

Bison Extirpation May Have Caused Aspen Expansion in Western Canada. Ecography 17:360-362.
AEU SCI CIRCUMPOLAR

Hogg, E. H. 1999

Simulation of Interannual Responses of Trembling Aspen Stands for Climatic Variation and Insect Defoliation in Western Canada. Ecological Modelling 114:175-193.
AEU SCI QH 541.15 M3 E19

Hogg, E. H., T. A. Black, G. den Hartog, and H. H. Neumann ((R. Zimmerman, P. A. Hurdle, P. D. Blanken, Z. Nesic, P. C. Yang, R. M. Staebler, K. C. McDonald, and R. Oren)) 1997

A Comparison of Sap Flow and Eddy Fluxes of Water Vapor from a Boreal Deciduous Forest. Journal of Geophysical Research 102(D24):28,929- 28,937.
AEU PHYSC QC 811 J86 Working in mature aspen stand in central Saskatchewan.

Hogg, E. H., and P. A. Hurdle 1995

The Aspen Parkland in Western Canada: A Dry-climate Analogue for the Future Boreal Forest? Water Air and Soil Pollution 82:391-400.
AEU SCI TD 172 W32

Hogg, E. H., and P. A. Hurdle 1997

Sap Flow in Trembling Aspen: Implications for Stomatal Responses to Vapor Pressure Deficit. Tree Physiology 17:501-509.
AEU SCI QK 474.8 T78

Hogg, E. H., D. T. Price, and T. A. Black 2001

Postulated Feedbacks of Deciduous Forest Phenology on Seasonal Climate Patterns in the Western Canadian Interior. Journal of Climate 13:4229-4243.
AEU SCI QC 851 J8624

Hogg, E. H., B. Saugier, J. Pontailler, T. A. Black, W. Chen, P. A. Hurdle, and A. Wu 2000

Responses of Trembling Aspen and Hazlenut to Vapor Pressure Deficit in a Boreal Deciduous Forest. Tree Physiology 20:725-734.
AEU SCI QK 474.8 T78 BOREAS study area in Prince Albert National Park, Saskatchewan.

Hogg, E. H., and A. G. Schwartz 1999

Tree-ring Analysis of Declining Aspen Stands in West-Central Saskatchewan. Information Report NOR-X-359. Northern Forestry Centre, Canadian Forest Service, Natural Resources Canada, Edmonton, Alberta, Canada. vi + 25 pages.
AEU SCI SD 356.54 C22 C212

Kay, C. E. 1993

Browsing by Native Ungulates: Effects on Shrub and Seed Production in the Greater Yellowstone Ecosystem. In Proceedings: Wildland Shrub and Arid Land Restoration Symposium, edited by B. A. Roundy, E. D. McArthur, J. S. Haley and D. K. Mann, pp. 310-320. Intermountain Research Station, Forest Service, United States Department of Agriculture, Ogden, Utah, USA.
AEU SCI QK 474.85 W54 1993

Kay, C. E. 1995

Pre-Columbian Human Ecology: Aboriginal Hunting and Burning Have Serious Implications for Park Management. Research Links 3(2):20-21. Parks Canada, Alberta and Pacific-Yukon Regions.
AEU SCI SB 484 C2 R47

Kay, C. E. 1995

Aboriginal Overkill and Native Burning: Implications of Modern Ecosystem Management. Western Journal of Applied Forestry 10(4):121-126.
AEU SCI SD 143 W515

Kay, C. E. 1996

The Condition and Trend of Aspen Communities in Kootenay and Yoho National Parks: Implications for Ecosystem Management and Ecological Integrity. Report to Parks Canada, Kootenay National Park and Yoho National Park. Utah State University, Logan, Utah, USA.
Unpublished report. Abstract only available. Contends that aspen does not reproduce from seed, but only from clones. Hence, aspen on burned areas is derived from clones that were there prior to fire, not from seed set after fire.

Kay, C. E., and D. L. Bartos 2000

Ungulate Herbivory on Utah Aspen: Assessment of Long-term Exclosures. Journal of Range Management 53:145-153.
Examine data from exclusion plots. Conclude that climate does not affect aspen regeneration. Livestock browsing and big-game browsing (deer and elk) are advanced as major controls on regeneration. Regeneration most pronounced on plots where grazing excluded.

Kay, C. E., B. Patton, and C. A. White 1994

Assessment of Long-term Terrestrial Ecosystem States and Processes in Banff National Park and the Central Canadian Rockies. Report to Parks Canada.
AEU SCI QH 77 A3 K235 1994 Contends that aspen in the Canadian Rockies does not establish from seed but from clones. Suggests that the clones have survived through the entire Holocene, i.e., that they may be 10,000 years old. Contends that under the present situation in Banff Park, aspen is "approaching ecological extinction" (p. xiv).

Kay, C. E., and C. A. White 1995

Long-Term Ecosystem States and Processes in the Central Canadian Rackies [sic]: A New Perspective on Ecological Integrity and Ecosystem Management. In Sustainable Society and Protected Areas, edited by R. M. Linn, pp. 119-132. Contributed Papers of the 8th Conference on Research and Resource Management in Parks and Public Lands, April 17-21, 1995, Portland, Oregon. The George Wright Society, Hancock, Michigan, USA.
Discusses aspen ecology and history in Banff National Park.

Stewart, J. D., E. H. Hogg, P. A. Hurdle, K. J. Stadt, P. Tollestrup, and V. J. Lieffers 1998

Dispersal of White Spruce Seed in Mature Aspen Stands. Canadian Journal of Botany 76:181-188.
AEU SCI QK 1 C21 An experimental study.