Ecological Regions of the Northwest Territories

Ecological Regions of the Northwest Territories
Author:
Publisher: Department of Environment and Natural Resources Goverment. of Northwest Territories
Total Pages: 245
Release: 2010-01-01
Genre: Cordillera
ISBN: 9780770801885

"The mountains of the Northwest Territories (NWT) are collectively called the Cordillera. This area forms a semi-circle of high plateaus, jagged peaks and river valleys along the western NWT border and extends east of the Mackenzie River to include the Franklin Mountains. The Cordillera influences the climate and drainages of the Taiga Plains to the east. The region displays an exceptional assemblage of boreal and subarctic mountain landscapes and ecosystem diversity. Under the new ecosystem classification the NWT Cordillera is unique in that it contains portions of three level I ecoregions: Tundra, Taiga and Northwest Forested Mountains. Nested respectively within each of these level I ecoregions is the Tundra Cordillera, Taiga Cordillera and Boreal Cordillera level II ecoregions.

Ecological Regions of the Northwest Territories, Southern Arctic

Ecological Regions of the Northwest Territories, Southern Arctic
Author: Northwest Territories. Ecosystem Classification Group
Publisher:
Total Pages: 170
Release: 2012
Genre: Biotic communities
ISBN: 9780770801991

Coniferous trees are restricted to locally warm, dry places on slopes and along rivers where they usually occur as stunted individuals or groves, twisted and sheared by cold winter winds bearing sharp ice crystals that cut needles and branchlets. Low-elevation wet coastal plains, glacial till blankets, glacial outwash features, weather-worn plateaus that have been ice-free for hundreds of thousands of years, rocky barrens and river valleys add physical, biological and visual diversity to this unique northern landscape."--Preface.

Protected Areas in Northern Canada

Protected Areas in Northern Canada
Author: Yolanda F. Wiersma
Publisher:
Total Pages: 54
Release: 2007
Genre: Nature
ISBN:

"Building on the conclusions of NPA1, this report is a case study of the Western Canadian Mammalian Province, which is largely coincident with Canada's boreal ecozones east of the cordillera. The focus of this case study is the testing of an optimization model for representing disturbance sensitive mammalian species in protected areas large enough to maintain species diversity. This paper contains potential applications by protected area agencies and ENGOs conducting gap analyses throughout this region."--pub. website desc.

Ecological Regions of North America

Ecological Regions of North America
Author:
Publisher:
Total Pages: 92
Release: 1997
Genre: Biogeography
ISBN:

This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.

Landscapes and Landforms of Western Canada

Landscapes and Landforms of Western Canada
Author: Olav Slaymaker
Publisher: Springer
Total Pages: 439
Release: 2016-12-01
Genre: Science
ISBN: 3319445952

This is the only book to focus on the geomorphological landscapes of Canada West. It outlines the little-appreciated diversity of Canada’s landscapes, and the nature of the geomorphological landscape, which deserves wider publicity. Three of the most important geomorphological facts related to Canada are that 90% of its total area emerged from ice-sheet cover relatively recently, from a geological perspective; permafrost underlies 50% of its landmass and the country enjoys the benefits of having three oceans as its borders: the Arctic, Pacific and Atlantic oceans. Canada West is a land of extreme contrasts — from the rugged Cordillera to the wide open spaces of the Prairies; from the humid west-coast forests to the semi-desert in the interior of British Columbia and from the vast Mackenzie river system of the to small, steep, cascading streams on Vancouver Island. The thickest Canadian permafrost is found in the Yukon and extensive areas of the Cordillera are underlain by sporadic permafrost side-by-side with the never-glaciated plateaus of the Yukon. One of the curiosities of Canada West is the presence of volcanic landforms, extruded through the ice cover of the late Pleistocene and Holocene epochs, which have also left a strong imprint on the landscape. The Mackenzie and Fraser deltas provide the contrast of large river deltas, debouching respectively into the Arctic and Pacific oceans.

A Faunal Review of Aleocharine Beetles in the Rapidly Changing Arctic and Subarctic Regions of North America (Coleoptera, Staphylinidae)

A Faunal Review of Aleocharine Beetles in the Rapidly Changing Arctic and Subarctic Regions of North America (Coleoptera, Staphylinidae)
Author: Jan Klimaszewski
Publisher: Springer Nature
Total Pages: 712
Release: 2021-08-27
Genre: Science
ISBN: 3030681912

Arctic and Subarctic North America is particularly affected by climate change, where average temperatures are rising three times faster than the global average. Documenting the changing climate/environment of the north requires a structured knowledge of indicator taxa that reflect the effects of climate changes.Aleocharine beetles are a dominant group of forest insects, which are being used in many projects as indicators of environmental change. Many species are forest specialists restricted to certain microhabitats, some are generalists and others are open habitat specialists. They represent many ecological niches and, as such, are good indicators for many other species as well. The majority of Canadian aleocharine beetle species (about 600 spp.) has been studied and published by Jan Klimaszewski et al. (2018, 2020), mainly from southern, central, and western Canada, while the northern taxa remain poorly known and documented. The aim of the present book is to summarize the knowledge on this insect group in the Arctic and Subarctic North America and to provide a diagnostic and ecological tool for scientists studying and monitoring insects in northern Canada and Alaska. The book includes a review of the literature, information on 238 species and their habitats, taxonomic review, images, and identification tools.