University of Toronto

10 items:

Late Glacial and Holocene environmental change inferred from sedimentary archives of Kusawa Lake, Boundary Range Mountains, Yukon Territory, Canada Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GEOLOGY, Paleo and Holocene
Reproduction, hibernation, and population regulation of arctic ground squirrels (Spermophilus parryii plesius) Populations of arctic ground squirrels in the boreal forest of the southwest Yukon were studied in order to answer the following questions: (1) What are the mechanisms of population regulation in arctic ground squirrel populations, (2) How does variation among individuals and their environment influence their reproduction and survival, and (3) How does variation in habitat influence hibernating strategies of arctic ground squirrels? In spring 1996, control densities of ground squirrels were 1.6 per ha, and four other populations ranged in density from 3.2 to 30.1 per ha as a result of a 10-year (1987-96) large scale manipulation of food and predators in the boreal forest of the Kluane Boreal Forest Ecosystem Project.... Categories: Publication; Types: Citation; Tags: Mammals, Monitoring 1-Changes in Plant and Animal Distribution: Fauna
Reproduction, hibernation, and population regulation of arctic ground squirrels (Spermophilus parryii plesius) Populations of arctic ground squirrels in the boreal forest of the southwest Yukon were studied in order to answer the following questions: (1) What are the mechanisms of population regulation in arctic ground squirrel populations, (2) How does variation among individuals and their environment influence their reproduction and survival, and (3) How does variation in habitat influence hibernating strategies of arctic ground squirrels? In spring 1996, control densities of ground squirrels were 1.6 per ha, and four other populations ranged in density from 3.2 to 30.1 per ha as a result of a 10-year (1987-96) large scale manipulation of food and predators in the boreal forest of the Kluane Boreal Forest Ecosystem Project.... Categories: Publication; Types: Citation; Tags: M1-Mammals
Holocene paleoenvironmental changes inferred from diatom assemblages in Kusawa Lake, Yukon Territory, Canada (Yukon) Diatom community composition and primary production in Kusawa Lake, Yukon Territory, Canada, over the Holocene were assessed and related to inferred environmental variables in order to determine the factors responsible for influencing species assemblages in a large, deep, sub-Arctic lake. The Kusawa Lake record was dominated by planktonic species with Cyclotella ocellata and Cyclotella pseudostelligera showing the highest abundances throughout the record. Holocene temperature changes as inferred from pollen data, ice core data, and oxygen isotope values, were found to influence changes in diatom community composition and were positively related to primary production. The peaks in diatom primary production and species... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: P2-Changes in Plant and Animal Species Due to Climate Change
Reproduction, hibernation, and population regulation of arctic ground squirrels (Spermophilus parryii plesius) Populations of arctic ground squirrels in the boreal forest of the southwest Yukon were studied in order to answer the following questions: (1) What are the mechanisms of population regulation in arctic ground squirrel populations, (2) How does variation among individuals and their environment influence their reproduction and survival, and (3) How does variation in habitat influence hibernating strategies of arctic ground squirrels? In spring 1996, control densities of ground squirrels were 1.6 per ha, and four other populations ranged in density from 3.2 to 30.1 per ha as a result of a 10-year (1987-96) large scale manipulation of food and predators in the boreal forest of the Kluane Boreal Forest Ecosystem Project.... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Mammals, Monitoring 1-Changes in Plant and Animal Distribution: Fauna

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