Lichens from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada. I. Macrolichens

1980 ◽  
Vol 58 (18) ◽  
pp. 1947-1985 ◽  
Author(s):  
Charles D. Bird ◽  
John W. Thomson ◽  
Alfred H. Marsh ◽  
George W. Scotter ◽  
Pak Yau Wong
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Plant Communities ◽  
Coniferous Forest ◽  
Yukon Territory ◽  
High Mountains ◽  
The North ◽  
Major Tributary ◽  
Mackenzie River

The distribution and general ecology of 249 macrolichen taxa is described for 230 000 km2 of coniferous forest, open fens, and alpine terrain along the Mackenzie River in the District of Mackenzie, Northwest Territories, and the Peel River, a major tributary which rises in the Yukon Territory. Permafrost plays a major role in determining the plant communities that are present. Fire and man-made disturbances initiate succession. There are 45 new reports for the District of Mackenzie and 30 for the Yukon. Of the taxa, 86% are found in Europe, Asia, and North America, 9% are known from Asia and North America, whereas only 4% are restricted to North America. Pilophorus robustus is new to Canada. High mountains in the western part of the area, generally nonglaciated during the Wisconsinian, support a flora that contains many Arctic and Arctic–Alpine taxa. Amphi-Beringian species occur primarily in the north.

Lichens from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada. II. Microlichens

1981 ◽  
Vol 59 (7) ◽  
pp. 1231-1252 ◽  
Author(s):  
Charles D. Bird ◽  
John W. Thomson ◽  
Alfred H. Marsh ◽  
George W. Scotter ◽  
Pak Yau Wong
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Coniferous Forest ◽  
Yukon Territory ◽  
New Combinations ◽  
Major Tributary ◽  
Made In ◽  
Mackenzie River

A sequel to earlier papers on bryophytes and macrolichens, this treatment describes the distribution and general ecology of 314 microlichen taxa for 230 000 km2 of coniferous forest, open fens, and alpine terrain along the Mackenzie River in the District of Mackenzie, Northwest Territories, and the Peel River, a major tributary which extends into the Yukon Territory. There are 103 new reports for the District of Mackenzie and 69 for the Yukon. Of the taxa, 87% are found in Europe and Asia as well as in North America, 1% are known only from Asia and North America; and 9% are restricted to North America. Staurothele sessilis Magn. is new to Canada, while Sagiolechia protuberans (Ach.) Mass., Staurothele hymenogonia (Nyl.) Th.Fr., and two lichen parasites, Didymosphaeria epicrassa (Oliv.) Vouax and Lahmia fuistingii Körb. are new to North America.Seven new combinations are made in Aspicilia: A. aliena (Zahlbr.) Thoms., A. anseris (Lynge) Thoms., A. elevata (Lynge) Thoms., A. perradiata (Nyl.) Thoms., A. ryrkaipiae (Magn.) Thoms., A. sorediza (Lynge) Thoms., and A. subplicigera (Magn.) Thoms.

Bryophytes from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada

1977 ◽  
Vol 55 (23) ◽  
pp. 2879-2918 ◽  
Author(s):  
Charles D. Bird ◽  
George W. Scotter ◽  
William C. Steere ◽  
Alfred H. Marsh
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Coniferous Forest ◽  
High Mountains ◽  
Extensive Area ◽  
Discontinuous Permafrost ◽  
Major Tributary ◽  
Mackenzie River

The distribution and general ecology of 263 bryophyte taxa are presented for an extensive area of coniferous forest, open fens, and alpine terrain along the Mackenzie River in the District of Mackenzie and the Peel River, a major tributary which extends into the Yukon. The continuous or discontinuous permafrost which underlies the area plays a major role in determining the vegetational communities that are present. Fire and disturbance by man initiate succession. Thirty-nine liverworts, 20 peat mosses, and 204 true mosses are reported. There are 43 new reports for the District of Mackenzie and 16 for the Yukon. Cynodontium glaucescens is new to North America. Brachythecium glaciale, B. mildeanum, and B. trachypodium are confirmed for North America. Of the taxa 94.7% are found in Europe and Asia as well as North America, 4.2% are known only from Asia and North America, whereas only 1.1% are restricted to North America. High mountains in the western part of the area, generally nonglaciated during the Wisconsinan, support a flora that contains many Arctic and Arctic–Alpine taxa.

Identification and morphology of the aecial state of Pucciniastrum sparsum in northwestern Canada

1970 ◽  
Vol 48 (3) ◽  
pp. 433-435
Author(s):  
Y. Hiratsuka
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Picea Glauca ◽  
Yukon Territory ◽  
New Hosts ◽  
First Time

From inoculation experiments and morphological examinations, the aecial state of Pucciniastrum sparsum (Wint.) E. Fisch. (= Thekopsora sparsa (Wint.) Magn.) has been identified for the first time in North America from specimens collected in the Northwest Territories and the Yukon Territory. Picea glauca (Moench) Voss, P. mariana (Mill.) BSP., and P. pungens Engelm. (from inoculation only) are reported as new hosts of this fungus. An expanded description of the spermogonia and aecia of the fungus is given.

The Northwest Territories and its future constitutional and political development: an examination of the Drury Report

Polar Record ◽  
1982 ◽  
Vol 21 (131) ◽  
pp. 117-125 ◽  
Author(s):  
Bernard W. Funston
Keyword(s):  
Northwest Territories ◽  
Significant Role ◽  
Political Development ◽  
Yukon Territory ◽  
The Political ◽  
National Unity ◽  
Political Processes ◽  
The North ◽  
Canadian Federalism

‘No scheme of Canadian historiography yet advanced is wholly satisfactory because none as yet takes account of the occurrence of the North’ (Morton, 1970, p 31). Where Canadian historiography has been silent, studies of Canadian federalism have chosen to ignore. The Northwest Territories (NWT) and die Yukon Territory have certainly never been major actors in national political forums, nor have they yet to play a significant role in the political processes surrounding the two major preoccupations of Canadian federalism, namely the economy and national unity.

Anastrophyllum assimile and Marsupella revoluta, new to the interior of North America

1977 ◽  
Vol 55 (19) ◽  
pp. 2479-2484 ◽  
Author(s):  
Diana G. Horton
Keyword(s):  
British Columbia ◽  
North America ◽  
Northwest Territories ◽  
North American ◽  
Yukon Territory ◽  
The Arctic ◽  
Devon Island ◽  
New Localities ◽  
Central Eastern ◽  
Coastal British Columbia

Anastrophyllum assimile (Mitt.) Steph. and Marsupella revoluta (Nees) Lindb. are reported from the Keele Peak area, central-eastern Yukon Territory, Canada, and M. revoluta is also reported from Devon Island, Northwest Territories, Canada. These new localities extend a pattern of disjunct occurrences throughout the known range of both species, which further support the hypothesis of their relictual status. However, collections of A. assimile from coastal British Columbia and the Alexander Archipelago, Alaska, are indicative of strong oceanic affinities of North American populations of this species. Also, the arctic and alpine localities at which either A. assimile or M. revoluta might be expected to occur in the interior of Alaska and the Yukon are limited in number as both species invariably occur in association with siliceous substrates.

A new Early Cretaceous articulate brachiopod from the Northwest Territories, Canada, and its paleobiogeographic significance

1990 ◽  
Vol 64 (3) ◽  
pp. 367-372 ◽  
Author(s):  
Michael R. Sandy
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Early Cretaceous ◽  
New Record ◽  
High Latitudes ◽  
American Continent ◽  
North American Continent ◽  
The North ◽  
Northwest Europe ◽  
Central Atlantic

A new terebratellid brachiopod species, Modestella jeletzkyi n. sp., is described from the Early Cretaceous of Prince Patrick Island, Northwest Territories, Canada. The occurrence extends the paleobiogeographic range of Modestella from northwest Europe into the northern high-latitudes of the North American continent. This new record of Modestella suggests brachiopod dispersal between northwest Europe and North America via the East Greenland Seaway, probably during the Albian. The occurrences of two other Cretaceous terebratellid genera, Advenina and Psilothyris, are updated. They are both homeomorphic with Modestella. Advenina, from the Tethyan and Jura regions of Europe, is now recorded from the Early Cretaceous of Sardinia. The occurrence of Psilothyris in North America and Europe is best explained by dispersal through the opening central Atlantic Ocean, indicating the continuation of Hispanic Corridor-type faunal links established during the Jurassic.

Cyclops strenuus (Fischer, 1851) sensu lato in Alaska and Canada, with new records of occurrence

1995 ◽  
Vol 73 (9) ◽  
pp. 1699-1711 ◽  
Author(s):  
Edward B. Reed ◽  
Nancy E. McIntyre
Keyword(s):  
North America ◽  
American Literature ◽  
Northwest Territories ◽  
New Records ◽  
Morphological Parameters ◽  
Passive Dispersal ◽  
Large Area ◽  
Male And Female ◽  
The North ◽  
Interior Alaska

References to Cyclops strenuus in the North American literature are reviewed. Male and female specimens of C. strenuus sensu lato from 20 sites in Alaska, Yukon, Northwest Territories, and Saskatchewan were measured and compared using several morphological parameters. Two or more phenotypes may be present among the 20 populations. The specimens examined differ sharply from Cyclops canadensis Einsle, 1988, especially in the length of the caudal ramus, length of the antennules, width of prosomites 4 and 5, and length of the lateralmost and medialmost terminal caudal setae. Thus, Einsle's conclusion that previous records of C. strenuus in North America are likely referable to C. canadensis may be premature. New records of C. strenuus away from northern coastal areas of Alaska and Canada include Saint Matthew and Nunivak islands, two interior Alaska locations, Galena and Chatanika, and four locations in central and southern Saskatchewan. Passive dispersal via migrating waterfowl may account for the presence of C. strenuus in Saskatchewan. To date, only a very few individuals of C. strenuus s.l. from a very large area in North America have been examined. Final decisions about relationships among Nearctic C. strenuus and their relationships to Palearctic congeners must await the examination of many more animals and investigations using biochemical or chromosomal techniques in conjunction with morphology.

Chronological list of expeditions and histrical events in northern Canda. IX. 1881–96

Polar Record ◽  
1973 ◽  
Vol 16 (103) ◽  
pp. 559-577
Author(s):  
Alan Cooke ◽  
Clive Holland
Keyword(s):  
Northwest Territories ◽  
Practical Interest ◽  
Gold Rush ◽  
Yukon Territory ◽  
Geological Survey ◽  
Hudson Bay ◽  
Northern Canada ◽  
The North ◽  
Short Period ◽  
The Government

During this short period began what may be termed the re-exploration of northern Canada, a scientific examination of lands that had been roughly charted by expeditions of the previous hundred years, but that were otherwise little known except to fur traders, a few missionaries, and the occasional traveller. Only now did the newly confederated Dominion of Canada begin to take a practical interest in its vast northern expansions. The government sent three scientific expeditions to Hudson Strait and Hudson Bay, and the Geological Survey of Canada began to direct its attention towards the north. One of its officers, A. P. Low, explored the length and breadth of the Quebec-Labrador peninsula virtually single-handed and, as if anticipating the Klondike gold rush, towards which the work of many prospectors in Yukon Territory was steadily leading, Dawson, McConnell and Ogilvie published detailed accounts of routes and conditions in the Northwest Territories and Yukon Territory, information that proved invaluable to both government and individuals when the rush was on.

NEWLY RECOGNIZED HOLARCTIC AND INTRODUCED PLANT BUGS IN NORTH AMERICA (HETEROPTERA: MIRIDAE)

1998 ◽  
Vol 130 (3) ◽  
pp. 267-283 ◽  
Author(s):  
Michael D. Schwartz ◽  
G.G.E. Scudder
Keyword(s):  
British Columbia ◽  
North America ◽  
Northwest Territories ◽  
North American ◽  
Washington State ◽  
Yukon Territory ◽  
Lygus Rugulipennis

AbstractThe first North American records forDeraeocoris punctulatus(Fallén),Labopidea artemisiae(Sahlberg), andLabopidea bermaniKerzhner indicate that the species are naturally Holarctic.Lygus rugulipennisPoppius is now considered naturally Holarctic after specimens ofLygus perplexusStanger from Alaska, Yukon Territory, and Northwest Territories are correctly identified asL.rugulipennis. Additional North American localities forLabopidea discolor(Sahlberg) support the contention that the species is naturally Holarctic. Collections ofOrthotylus ochrotrichusFieber from Royal Oak, British Columbia, andMalacocoris chlorizansPanzer from British Columbia and Washington state suggest that these species are adventive to North America. Diagnoses are provided to distinguish all the taxa from other North American congeners. A key to the northern Nearctic species ofLabopideais given.

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