Holocene Paleoecology of the Boreal Forest and Great Lakes‐St. Lawrence Forest in Northern Ontario

1990 ◽  
Vol 60 (2) ◽  
pp. 179-212 ◽  
Author(s):  
Kam-Biu Liu
Keyword(s):  
Great Lakes ◽  
Boreal Forest ◽  
Northern Ontario ◽  
Holocene Paleoecology

Classification of annual non-stand replacing boreal forest change in Canada using Landsat time series: a case study in northern Ontario

2016 ◽  
Vol 8 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Oumer S. Ahmed ◽  
Michael A. Wulder ◽  
Joanne C. White ◽  
Txomin Hermosilla ◽  
Nicholas C. Coops ◽  
...  
Keyword(s):  
Time Series ◽  
Boreal Forest ◽  
Forest Change ◽  
Northern Ontario

SEXUAL BEHAVIOR AND THE CLASSIFICATION OF THE PHILODROMUS RUFUS COMPLEX IN NORTH AMERICA (ARANEIDA: THOMISIDAE)

1967 ◽  
Vol 45 (4) ◽  
pp. 453-459 ◽  
Author(s):  
C. D. Dondale
Keyword(s):  
Sexual Behavior ◽  
North America ◽  
Great Lakes ◽  
Pacific Coast ◽  
Eastern North America ◽  
Northern Ontario ◽  
Southern Ontario ◽  
The Pacific ◽  
Mating Behaviors

The mating behaviors of Philodromus rufus-like spiders from the Pacific coast, northern Ontario, and southern Ontario near Belleville revealed two species and a subspecies. P. rufus Walckenaer is identified as a transcontinental species in which the males vibrate their legs in courtship and possess an "angular" retro-lateral apophysis on the palpal tibia. P. rufus vibrans Dondale is a small, heavily-speckled subspecies of rufus. The second species is P. exilis Banks, in which the males do not vibrate and have a "non-angular" apophysis, and which occurs in the Great Lakes-St. Lawrence-Acadian forests of eastern North America.

Wolves and coyotes in Ontario: morphological relationships and origins

1985 ◽  
Vol 63 (5) ◽  
pp. 1130-1137 ◽  
Author(s):  
O. J. Schmitz ◽  
G. B. Kolenosky
Keyword(s):  
Boreal Forest ◽  
Multivariate Analyses ◽  
Clinal Variation ◽  
Northern Ontario ◽  
Southern Ontario ◽  
Small Form ◽  
Forest Region ◽  
Boreal Forest Region

Morphologically distinct groups of Canis in Ontario were identified using multivariate analyses on 6 body and 21 cranial characters. Three groups of wolves and three groups of coyotes were identified. Wolves in Ontario appeared to exhibit clinal variation. Large wolves were found in the boreal forest region of northern Ontario, intermediate-sized wolves were found in central Ontario, and a small form existed in southern Ontario. Coyotes in Ontario also varied geographically in size. Coyotes in southeastern and central Ontario resembled coyote–wolf hybrids.

scholarly journals Woodland caribou and forestry in Northern Ontario, Canada

Rangifer ◽  
1986 ◽  
Vol 6 (2) ◽  
pp. 87 ◽  
Author(s):  
W. R. Darby ◽  
L. S. Duquette
Keyword(s):  
Boreal Forest ◽  
Timber Harvest ◽  
Woodland Caribou ◽  
Forest Stands ◽  
Migration Routes ◽  
Northern Ontario ◽  
Winter Range ◽  
The Third ◽  
Peripheral Portion ◽  
Deer Density

Expansion of logging in remote Ontario boreal forest requires mitigation of effects on woodland caribou. Three examples of caribou-forestry interaction are reviewed. In two, caribou were apparently displaced from peripheral portions of their winter range by logging. In the third, caribou disappeared when exposed to: logging in a central third of their winter range; increased deer density, and; a probable increase in predation. In all cases there is no evidence of human harvest. The literature plus experience in Ontario suggest the following mitigative techniques: protection of winter concentration areas, significant calving areas and traditional migration routes from logging; directing timber harvest to forest stands of least value to caribou; restricting disturbance to one large clearcut in a peripheral portion of range rather than dispersing it over a large portion as several small clearcuts; modified site preparation and regeneration, and; restricted road access. Research is required on the effect of forestry on caribou with and without mitigation, and on causes for effects observed.

Fossil Coleoptera from the postglacial spruce–pine transition period near Minesing Swamp, Ontario

1987 ◽  
Vol 24 (10) ◽  
pp. 2099-2103 ◽  
Author(s):  
Randall F. Miller ◽  
W. D. Fitzgerald ◽  
D. N. Buhay
Keyword(s):  
Great Lakes ◽  
Boreal Forest ◽  
Climatic Change ◽  
Bark Beetles ◽  
Transition Period ◽  
Pollen Zone ◽  
Forest Region ◽  
Minesing Swamp ◽  
Insect Assemblage

Analysis of Coleoptera fragments from a woody peat overlain by alluvial sands, near the margin of Minesing Swamp, records the adjustment of the beetle fauna to climatic change at the time of the spruce–pine transition. The site, dated at 10 280 years BP, contains a small but interesting insect assemblage recovered from a 1 m section. Bark beetles and staphylinid beetles typical of the Boreal forest occur in the spruce pollen zone. Higher in the section bark beetles are absent, and staphylinid beetles typical of the Great Lakes – St. Lawrence Forest Region occur in the pine and hemlock pollen zones.

scholarly journals Patterns of Consumption and Diet Differentiation for Three Breeding Warbler Species During a Spruce Budworm Outbreak

The Auk ◽  
2002 ◽  
Vol 119 (1) ◽  
pp. 216-220 ◽  
Author(s):  
B. McMartin ◽  
I. Bellocq ◽  
S. M. Smith
Keyword(s):  
Boreal Forest ◽  
Breeding Season ◽  
Spruce Budworm ◽  
The Other ◽  
Food Category ◽  
Northern Ontario ◽  
Food Items ◽  
Species Pairs ◽  
Food Niche

Abstract Diets of three warbler species were analyzed during a spruce budworm outbreak in the boreal forest of northern Ontario. Beetles constituted a large portion of the food items consumed by Cape May (Dendroica tigrina), Bay-breasted (Dendroica castanea), and Tennessee (Vermivora peregrina) warblers early in the breeding season (7–11 June), and caterpillars were the most frequently used food category shortly later (18–24 June). Differences in diet served to differentiate the warbler species in the earlier period when Bay-breasted Warblers consumed more beetles, Tennessee Warblers consumed more caterpillars, and Cape May Warblers consumed more flies than the other species. Only Bay-breasted Warblers' continuing preference for beetles differentiated the warblers' diets in the later period. Food-niche overlaps increased for two of the three warbler species pairs between the two periods in June, but there was no change in the overlap between Bay-breasted and Cape May warbler diets.

scholarly journals Climate-Biome Envelope Shifts Create Enormous Challenges and Novel Opportunities for Conservation

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 1015
Author(s):  
Ryan Toot ◽  
Lee E. Frelich ◽  
Ethan E. Butler ◽  
Peter B. Reich
Keyword(s):  
Great Lakes ◽  
Boreal Forest ◽  
Protected Areas ◽  
Temperate Forest ◽  
Mixed Forest ◽  
Great Lakes Region ◽  
Recent Climate ◽  
Normal Period ◽  
Western Great Lakes ◽  
Envelope Model

Research Highlights: We modeled climate-biome envelopes at high resolution in the Western Great Lakes Region for recent and future time-periods. The projected biome shifts, in conjunction with heterogeneous distribution of protected land, may create both great challenges for conservation of particular ecosystems and novel conservation opportunities. Background and Objectives: Climate change this century will affect the distribution and relative abundance of ecological communities against a mostly static background of protected land. We developed a climate-biome envelope model using a priori climate-vegetation relationships for the Western Great Lakes Region (Minnesota, Wisconsin and Michigan USA and adjacent Ontario, Canada) to predict potential biomes and ecotones—boreal forest, mixed forest, temperate forest, prairie–forest border, and prairie—for a recent climate normal period (1979–2013) and future conditions (2061–2080). Materials and Methods: We analyzed six scenarios, two representative concentration pathways (RCP)—4.5 and 8.5, and three global climate models to represent cool, average, and warm scenarios to predict climate-biome envelopes for 2061–2080. To assess implications of the changes for conservation, we analyzed the amount of land with climate suited for each of the biomes and ecotones both region-wide and within protected areas, under current and future conditions. Results: Recent biome boundaries were accurately represented by the climate-biome envelope model. The modeled future conditions show at least a 96% loss in areas suitable for the boreal and mixed forest from the region, but likely gains in areas suitable for temperate forest, prairie–forest border, and prairie. The analysis also showed that protected areas in the region will most likely lose most or all of the area, 18,692 km2, currently climatically suitable for boreal forest. This would represent an enormous conservation loss. However, conversely, the area climatically suitable for prairie and prairie–forest border within protected areas would increase up to 12.5 times the currently suitable 1775 km2. Conclusions: These results suggest that retaining boreal forest in potential refugia where it currently exists and facilitating transition of some forests to prairie, oak savanna, and temperate forest should both be conservation priorities in the northern part of the region.

scholarly journals An uncommon infectious etiology in an unlikely geographic location: A case report of cutaneous blastomycosis in Saskatchewan

2019 ◽  
Vol 7 ◽  
pp. 2050313X1989771
Author(s):  
Lindsay Richels ◽  
Karen Holfeld
Keyword(s):  
Case Report ◽  
Great Lakes ◽  
Geographic Location ◽  
Northern Ontario ◽  
Lake Of The Woods ◽  
Pulmonary Mycosis ◽  
Infectious Etiology

Blastomycosis is a primary pulmonary mycosis of humans usually affecting patients geographically located near the Great Lakes, Lake-of-the-Woods and northern Ontario. We report a case of cutaneous blastomycosis in a patient with no environmental contact outside of Saskatchewan.

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