scholarly journals Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada

PhytoKeys ◽  
2018 ◽  
Vol 105 ◽  
pp. 1-186 ◽  
Author(s):  
Loren Bahls ◽  
Beverly Boynton ◽  
Barb Johnston
Keyword(s):  
North America ◽  
Rocky Mountains ◽  
New Records ◽  
Natural Sciences ◽  
Western Canada ◽  
University Of Montana ◽  
Voucher Specimens ◽  
Standing Waters ◽  
The University ◽  
Collection Sites

High-resolution LM images of diatoms from remote regions of western Canada are presented as a contribution to our knowledge of diatom floristics, ecology and biogeography in North America. Approximately 600 taxa are imaged in 132 plates. Genera with the most taxa are Cymbella (19 taxa), Cymbopleura (29), Encyonema (23), Encyonopsis (15), Eunotia (77), Gomphonema (42), Navicula (47), Neidium (20), Nitzschia (35), Pinnularia (50) and Stauroneis (34). Diatoms were collected from diverse habitats in four of North America’s major biomes: Arctic tundra, taiga, Rocky Mountains and Pacific rainforest. Many of the photographed taxa could not be identified to species and are likely new to science. Other taxa may represent new records for North America or Canada. Images of voucher specimens are keyed to individual collection sites. Detailed descriptions of the collection sites include GPS coordinates, colour photographs, vegetation, algal substrates, elevations, pH, temperature and conductivity. Samples were collected from natural substrates in fresh to brackish, flowing and standing waters. Voucher slides are deposited in the Montana Diatom Collection (Helena) and the University of Montana Herbarium (Missoula). Cleaned diatom frustules have been deposited in the Diatom Herbarium of the Academy of Natural Sciences of Philadelphia.

James Hector (1834–1907): Doctor, geologist, explorer of Western Canada

2009 ◽  
Vol 17 (3) ◽  
pp. 174-176
Author(s):  
Brian Loosmore
Keyword(s):  
North America ◽  
Rocky Mountains ◽  
Western Canada ◽  
Large Measure ◽  
The Usa ◽  
University Of Edinburgh ◽  
The University

Summary A graduate of the University of Edinburgh, James Hector joined the Palliser Expedition of 1857 as a doctor and geologist. The objectives of the expedition were to explore the plains of North America along the 49th parallel of latitude, the recently agreed boundary between the USA and Canada, and investigate passes through the Rocky Mountains for possible railway passage. Hector's contribution was immense, his dedication and endurance contributing in large measure to the success of the venture.

scholarly journals The Deep Roots of the Rocky Mountains: Geophysical Studies of Western Canada

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Claire A. Currie
Keyword(s):  
North America ◽  
Rocky Mountains ◽  
Western Canada ◽  
Deep Roots ◽  
Tectonic Plates ◽  
North American Cordillera ◽  
Rugged Terrain ◽  
The North ◽  
Mountain Belt ◽  
Western Side

The Rocky Mountains in western Canada have some of the most spectacular scenery in the world, with rugged terrain and snow-covered peaks. The Rockies are part of the North American Cordillera, a ~4000 km mountain belt that runs along the western side of North America (Figure 1). This mountain belt formed over the last 200 million years, as rocks were added to the western side of North America during the convergence of tectonic plates. 

Environmental engineering education in conjunction with or as Part of social sciences curricula

2000 ◽  
Vol 41 (2) ◽  
pp. 47-54 ◽  
Author(s):  
H.H. Hahn
Keyword(s):  
Social Sciences ◽  
Engineering Education ◽  
Business Administration ◽  
Natural Sciences ◽  
Environmental Engineering ◽  
Basic Question ◽  
Basic Training ◽  
The University ◽  
Engineering Programme ◽  
Environmental Infrastructure

Traditionally in Germany environmental engineering education took place within the context of a civil engineering programme. There were reasons for this: the beginning of much of what we understand today to be environmental works fell within the parameters of city engineering. There were and are advantages mostly in view of the necessary planning, construction and operation of environmental infrastructure. There are also disadvantages which become more and more pronounced as the field of environmental protection expands: the civil engineer frequently lacks basic training in disciplines such as biology and chemistry and carries a large and sometimes burdensome knowledge of other less relevant subjects. Thus, educators begin to look for alternatives. This paper deals with an alternative that was developed some ten years ago and therefore has proven viable and successful: at the University of Karlsruhe students may choose to major in environmental engineering within the context or on the basis of an economics and business administration curriculum. The basic question here is as to what extent the student masters the field of environmental engineering if he or she has predominantly a solid background in social sciences and very little in natural sciences. The paper will describe the curriculum in structure and intensity and evaluate the accumulated knowledge and suitability of these students in terms of actual environmental problems. This will be done in terms of examination performance parallel and/or relative to traditionally trained civil environmental engineers as well as in terms of topics successfully treated in Masters' theses. In conclusion, it is argued that such combination of curricula should not be confined to economic sciences and environmental engineering but also be planned for legal sciences and environmental engineering.

EXPERIENCE ONE: ANALYSIS OF A DECADE OF IMMERSION SCHEDULING AND EXPERIENTIAL LEARNING AT THE UNIVERSITY OF MONTANA WESTERN

2017 ◽  
Author(s):  
Robert C. Thomas ◽  
◽  
Rebekah Levine ◽  
Sheila M. Roberts ◽  
Spruce W. Schoenemann
Keyword(s):  
Experiential Learning ◽  
University Of Montana ◽  
The University

Wildfires in the southern Canadian Rocky Mountains and their relationship to mid-tropospheric anomalies

1993 ◽  
Vol 23 (6) ◽  
pp. 1213-1222 ◽  
Author(s):  
E.A. Johnson ◽  
D.R. Wowchuk
Keyword(s):  
North America ◽  
Rocky Mountains ◽  
Large Scale ◽  
Fire Frequency ◽  
Fuel Moisture ◽  
Large Fire ◽  
Canadian Rocky Mountains ◽  
Area Burned ◽  
Upper Level ◽  
Moisture Conditions

In this paper we present evidence for a large-scale (synoptic-scale) meteorological mechanism controlling the fire frequency in the southern Canadian Rocky Mountains. This large-scale control may explain the similarity in average fire frequencies and timing of change in average fire frequencies for the southern Canadian Rocky Mountains. Over the last 86 years the size distribution of fires (annual area burned) in the southern Canadian Rockies was distinctly bimodal, with a separation between small- and large-fire years at approximately 10–25 ha annual area burned. During the last 35 years, large-fire years had significantly lower fuel moisture conditions and many mid-tropospheric surface-blocking events (high-pressure upper level ridges) during July and August (the period of greatest fire activity). Small-fire years in this period exhibited significantly higher fuel moisture conditions and fewer persistent mid-tropospheric surface-blocking events during July and August. Mid-tropospheric surface-blocking events during large-fire years were teleconnected (spatially and temporally correlated in 50 kPa heights) to upper level troughs in the North Pacific and eastern North America. This relationship takes the form of the positive mode of the Pacific North America pattern.

Climatic implications of latest Pleistocene and earliest Holocene mammalian sympatries in eastern Washington state, USA

2008 ◽  
Vol 70 (3) ◽  
pp. 426-432 ◽  
Author(s):  
R. Lee Lyman
Keyword(s):  
North America ◽  
Late Pleistocene ◽  
Rocky Mountains ◽  
Taxonomic Composition ◽  
Washington State ◽  
The West ◽  
Mammalian Faunas ◽  
Eastern Washington

AbstractFor more than fifty years it has been known that mammalian faunas of late-Pleistocene age are taxonomically unique and lack modern analogs. It has long been thought that nonanalog mammalian faunas are limited in North America to areas east of the Rocky Mountains and that late-Pleistocene mammalian faunas in the west were modern in taxonomic composition. A late-Pleistocene fauna from Marmes Rockshelter in southeastern Washington State has no modern analog and defines an area of maximum sympatry that indicates significantly cooler summers than are found in the area today. An earliest Holocene fauna from Marmes Rockshelter defines an area of maximum sympatry, including the site area, but contains a single tentatively identified taxon that may indicate slightly cooler than modern summers.

Three new records of the genus Solenostoma (Solenostomataceae, Marchantiophyta) in Indian bryoflora from Sikkim

2015 ◽  
Vol 38 (3) ◽  
pp. 233-240
Author(s):  
Devendra Singh
Keyword(s):  
North America ◽  
New Records ◽  
Eastern Himalaya ◽  
First Time

Three species of the genus Solenostoma Mitt., viz. Solenostoma baueri (Schiffn.) Steph. earlier known from Indonesia, S. fusiforme (Steph.) R.M.Schust. from China, Korea, Japan, Russia and North America and S. vulcanicola (Schiffn.) Va?a, Hentschel & Heinrichs from Indonesia and Japan, are described for the first time in Indian bryoflora from Sikkim in Eastern Himalaya.

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