Life History and Habits of the Brown Mite, Bryobia arborea M. & A. (Acarina: Tetranychidae) on Apple in Nova Scotia

1962 ◽  
Vol 94 (9) ◽  
pp. 934-941 ◽  
Author(s):  
H. J. Herbert
Keyword(s):  
British Columbia ◽  
Life History ◽  
Nova Scotia ◽  
Species Status ◽  
Apple Trees ◽  
Geographical Race ◽  
Nova Scotian

Morgan and Anderson (1957) discussed in detail the synonymy of the Bryobia praetiosa Koch complex. They raised the apple inhabiting form to species status, and gave it the name, brown mite, Bryobia arborea.The brown mite from apple trees in Nova Scotia was examined by C. V. G. Morgan, Summerland, British Columbia, and found to be morphologically similar to the B. arborea on apple in British Columbia. It is possible, however, that the Nova Scotian form may be a geographical race.

Alternative environment activities on both sides of the Atlantic: A Canada-Ireland consideration and comparison

2021 ◽  
pp. 1356336X2098588
Author(s):  
Daniel B Robinson ◽  
Nathan Hall ◽  
José da Costa ◽  
Brent Bradford
Keyword(s):  
Nova Scotia ◽  
Administrative Support ◽  
Vigorous Physical Activity ◽  
Comparative Investigation ◽  
Data Sets ◽  
Online Questionnaire ◽  
Traditional Sports ◽  
Development Participation ◽  
Ice Water ◽  
Nova Scotian

Due to the overemphasis of traditional sports at the expense of other movement domains in physical education (PE) programmes, there is a need to consider what factors might enable or limit PE teachers’ incorporation of some of these other domains that can support student learning. The focus of this article is on one such marginalized domain – alternative environment activities (AEAs). AEAs can afford students a breadth of opportunities for moderate-to-vigorous physical activity in different environments (i.e. land, snow and ice, water, air) and improve environmental awareness and stewardship. This article reports on a comparative investigation of Nova Scotian (Canadian) and Irish PE teachers’ incorporation of AEAs in their PE programmes. To understand what similarities or differences might exist with respect to these PE teachers’ incorporation of AEAs, along with existing enablers and barriers, a self-selected sample of current PE teachers (Nova Scotia = 53; Ireland = 64) completed a 22-item online questionnaire. Descriptive and inferential statistical analyses were employed to conduct comparisons among the two data sets. PE teachers’ understandings of curricular requirements for AEAs were found to be an issue in both Nova Scotia and Ireland. Reported significant differences include: AEA-related professional development participation; most important factors for deciding not to include AEAs; and feelings of school administrative support towards AEA incorporation. Findings also suggest that various issues may be hindering incorporation of AEAs in PE programmes, and that some of these issues do differ based on where the PE programme is situated.

SOME PREDATORS OF THE EUROPEAN RED MITE, PARATETRANYCHUS PILOSUS C. & F., IN NOVA SCOTIA

1935 ◽  
Vol 13d (2) ◽  
pp. 19-39 ◽  
Author(s):  
F. C. Gilliatt
Keyword(s):  
Life History ◽  
Nova Scotia ◽  
Natural Enemies ◽  
European Red Mite ◽  
Unidentified Species ◽  
Campylomma Verbasci

Predators are the most important natural enemies of the European red mite. Notes are given on the life history and habits of the following predaceous enemies of this mite, Seiulus pomi Parrott; Diaphnidia pellucida Uhl.; Diaphnidia capitata Van D.; Hyaliodes vitripennis Say; Stethorus punctum Leconte; Plagiognathus obscurus Uhl.; Camptobrochis nebulosus Uhl.; Anystis agilis Banks; Campylomma verbasci Mey., and an unidentified species of Syrphidae.

The Brown Mite, Bryobia arborea Morgan and Anderson (Acarina: Tetranychidae), on Apple in Nova Scotia.: I. Influence of Intratree Distribution on the Selection of Sampling Units. II. Differences in Habits and Seasonal Trends in Orchards With Bivoltine and Trivoltine Populations. III. Distribution of Diapause Eggs. IV. Hatching of Diapause Eggs

1965 ◽  
Vol 97 (12) ◽  
pp. 1303-1318 ◽  
Author(s):  
H. J. Herbert
Keyword(s):  
Nova Scotia ◽  
First Generation ◽  
Second Generation ◽  
Central Area ◽  
Third Generation ◽  
Apple Trees ◽  
Seasonal Trends ◽  
Sample Unit ◽  
The Third ◽  
Selection Of

AbstractIn Nova Scotia one leaf cluster with an adjoining 1 inch of twig taken from the inside of each of 10 apple trees replicated four times is an adequate sample unit to measure the density of the brown mite.The brown mite has one generation with a partial second in some orchards and one with a partial second and partial third in others. The first generation adults in the bivoltine and trivoltine populations lay summer eggs on the leaves and twigs, and diapause eggs on tin twigs. The second generation adults in the bivoltine populations lay only diapause eggs; in the trivoltine populations they lay both summer and diapause eggs. The adults of the third generation lay only diapause eggs.The brown mite is found on both the leaves and woody parts of the tree. In orchards with bivoltine populations the proportion of mites on leaves reached a peak of 80% by mid-July, but thereafter gradually decreased to 10% by the end of August. However, in orchards with trivoltine populations the proportion of mites on leaves reached a peak of 80 to 90% by mid-July, remained constant until mid-August, and thereafter decreased to approximately 40% by the end of August.The number of diapause eggs laid by adults of each generation in both the bivoltine and trivoltine populations varies widely. The eggs are deposited on the trunk as well as on the branches, with the heaviest deposition in the central area of the tree. The diapause eggs laid by adults of the first generation are the last to hatch and those laid by the third generation are the first to hatch the following spring.The factors responsible for the differences in the number of generations and in the number of diapause eggs laid are unknown.

Eighteenth-Century Sierra Leone English

1999 ◽  
Vol 20 (1) ◽  
pp. 1-34 ◽  
Author(s):  
Michael Montgomery
Keyword(s):  
Eighteenth Century ◽  
African American ◽  
Nova Scotia ◽  
African Americans ◽  
Sierra Leone ◽  
American English ◽  
African American English ◽  
History Of ◽  
Nova Scotian

This essay examines the language of an expatriate community as found in letters and petitions written by African Americans who migrated to Sierra Leone by way of Nova Scotia in 1792. These documents provide some of the earliest first-hand evidence of African American English and contribute to debates about the history of that variety. The paper compares selected grammatical features in that variety to modern-day African Nova Scotian English for insights to the history of African American English and develops a case for the principled use of manuscript documents for reconstructing earlier stages of colloquial English.

Chrysomyxa arctostaphyli. [Distribution map].

1999 ◽  
Author(s):  
Keyword(s):  
New York ◽  
British Columbia ◽  
New Mexico ◽  
Nova Scotia ◽  
North America ◽  
New Brunswick ◽  
South Dakota ◽  
Geographical Distribution ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Chrysomyxa arctostaphyli Dietel Fungi: Basidiomycota: Uredinales Hosts: Picea spp. and Arctostaphylos uva-ursi. Information is given on the geographical distribution in NORTH AMERICA, Canada, Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Northwest, Territories, Nova Scotia, Ontario, Quebec, Saskatchewan, Yukon, USA, Alaska, Arizona, Colorado, Idaho, Maine, Michigan, Montana, New Mexico, New York, Oregon, South Dakota, Utah, Washington, Wisconsin, Wyoming.

STUDIES ON THE APOIDEA OF WESTERN NOVA SCOTIA WITH SPECIAL REFERENCE TO VISITORS TO APPLE BLOOM

1933 ◽  
Vol 9 (5) ◽  
pp. 443-457 ◽  
Author(s):  
C. E. Atwood
Keyword(s):  
Nova Scotia ◽  
Special Reference ◽  
Social Organization ◽  
Life Histories ◽  
Pupal Stage ◽  
Simple Type ◽  
Nest Construction ◽  
Wild Bees ◽  
Males And Females ◽  
Nova Scotian

This paper describes the results of studies on the wild bees of Nova Scotia, which were carried out in connection with apple pollination investigations in the Annapolis-Cornwallis Valley, Nova Scotia.The biology of the Apoidea in general is reviewed from the literature, and a list of bees taken on apple bloom is given. As the members of the genera Halictus and Andrena were found to be the most important native pollinators, the greater part of the paper is devoted to accounts of the habits and life histories of representative species.The members of the genus Andrena were found to have a simple type, such as is generally found among solitary bees. The females provision the nest and then die; the larvae develop to the pupal stage in their underground cells, then emerge as adults the following season. All Nova Scotian species studied were one-generation forms.The bees of the genus Halictus show a primitive social organization, more complex in some species than in others. The first brood consists of females only, which are apparently sterile and work at nest construction, the gathering of pollen, etc. They are followed later in the season by a brood of males and females; these females, after being fertilized, hibernate for the winter, while the males die in the fall. The hibernating habits of different species are described, and notes are given on some parasites and inquilines of the two genera.

scholarly journals Longer distance cycling for interspecies mobility justice in Canada

2021 ◽  
Author(s):  
Nicholas Scott
Keyword(s):  
British Columbia ◽  
Nova Scotia ◽  
Case Studies ◽  
Active Travel ◽  
Ethnographic Study ◽  
Moral Obligations ◽  
Social Production ◽  
Central Cities ◽  
The Social ◽  
Specific Number

This article explores how longer distance cycling can advance interspecies mobility justice, a theory of (im)mobilities and justice that includes other-than-human persons and habitats as worthy of our positive moral obligations. I argue that longer distance cycling can advance interspecies mobility justice by promoting socially inclusive and ecologically good cycling practices that redress the active travel poverty of marginalized and colonized populations, while replacing rather than augmenting auto roads with active travel routes that help humans respect other species. The article theorizes longer distance cycling not as some specific number of kilometres, but rather as the social production of cycling space across gentrified central cities, struggling inner suburbs, outer exurbs and rural countrysides. To explore this argument my analysis focuses on Canada, an extreme context for longer distance cycling. I offer a comparison of two case studies, situated on the country’s west and east coasts, Vancouver, British Columbia and Halifax, Nova Scotia, drawing on an ongoing ethnographic study of cycling practices and politics in Canada.  

Thermal history and subsidence of rifted continental margins—evidence from wells on the Nova Scotian and Labrador Shelves

1979 ◽  
Vol 16 (3) ◽  
pp. 505-522 ◽  
Author(s):  
C. E. Keen
Keyword(s):  
Nova Scotia ◽  
Time History ◽  
The United States ◽  
Tectonic Subsidence ◽  
Continental Margins ◽  
Thermal Cooling ◽  
Nova Scotian ◽  
Temperature Time ◽  
Good Agreement ◽  
Cooling Model

The subsidence histories of the Labrador and Nova Scotian rifted continental margins have been determined from biostratigraphic data for 11 deep exploratory wells off Nova Scotia, for five wells off Labrador, for three wells northeast of Newfoundland, and for one well off the northeast coast of the United States of America. The components of subsidence, due to sediment loading, and when possible due to loading by changes in eustatic sea level, were removed, leaving that part of the subsidence, the tectonic subsidence, caused by cooling of the lithosphere or by other deep seated processes. The thermal cooling model theoretically predicts a linear relationship between tectonic subsidence and t½, where t is the time since subsidence began. This relationship should be obeyed during the first tens of Ma of subsidence. The slope of this curve depends upon the temperature to which the crust and upper mantle were heated during the initial rifting stage and can be used to derive the temperature–time history within the sediments, the present temperature distribution, and geothermal gradient. The data show that the observed subsidence curves behave in accordance with the thermal cooling model, at least during the first 80 Ma after subsidence began and obey the equation y = 300(± 80)t1/2 m, where y is the tectonic subsidence. The slopes of the subsidence curves are similar for the Labrador Shelf, the Nova Scotian Shelf, and the shelf off the northeastern U.S.A. More rapid and variable subsidence occurs northeast of Newfoundland and this may be associated, in a way yet to be established, with the anomalous foundered continental crust near the Orphan Knoll and Flemish Cap micro-continents which lie close to this area. After about 80 Ma, the subsidence appears to depart from the linear t1/2 law in a manner similar to the subsidence curves for oceanic crust, but this is not well established by the data. The present temperatures and temperature gradients computed using the slope of the subsidence curves show good agreement with measured values; geothermal gradients of 17.5 °C km−1 and 26 °C km−1 are calculated off Nova Scotia and Labrador respectively, and mean values of about 23 °C km−1 are observed. The computed temperature–time history within the sediments was used to estimate values of vitrinite reflectance, an indicator of the degree of organic metamorphism. These values show reasonable agreement with the measured values and suggest that only the Upper Jurassic and Lower Cretaceous sediments off Nova Scotia and the Paleocene sediments off Labrador are sufficiently mature to be good sources of petroleum. The linear t1/2 behaviour of the subsidence, and the good agreement between predicted and observed temperatures support the contention that cooling is largely responsible for the observed tectonic subsidence. The similarity of results from different areas suggests that the usefulness of the method is not restricted to a particular geographical area and may be applied to other rifted continental margins. Comparisons between the subsidence rates, thermal histories, and crustal structure at rifted margins on a worldwide scale may provide insights concerning the processes controlling their development. The temperature–time histories of the sediments estimated from the subsidence may be useful in establishing the potential of a rifted margin area for petroleum generation when little other information is available.

Mycosphaerella iridis. [Descriptions of Fungi and Bacteria].

2013 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
British Columbia ◽  
North Carolina ◽  
New Mexico ◽  
New Zealand ◽  
Nova Scotia ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Conservation Status ◽  
Himachal Pradesh

Abstract A description is provided for Mycosphaerella iridis, a terrestrial fungus, parasitic and causing brownish spots on the distal parts of older leaves. Some information on its habitats, economic impacts, dispersal and transmission and conservation status is given, along with details of its geographical distribution (Africa (Zambia, Zimbabwe), North America (Canada (British Columbia, Nova Scotia, Ontario, Saskachewan, Quebec), USA (California, Colorado, Idaho, Indiana, New jersey, New Mexico, North Carolina, Utah, Wyoming), South America (Venezuela), Asia (Armenia, China, Cyprus, Georgia, India (Himachal Pradesh, Jammu & Kashmir), Iran, Kazakhstan (Alma-Atinskaya oblast, Chimkentskaya oblast), Kyrgyzstan, Turkey, Turkmenistan), Australasia (New Zealand), Caribbean (St. Vincent), Europe (Austria, Belgium, former Czechoslovakia, Denmark, Estonia, France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Norway, Poland, Portugal, Romania, Russia (Leningradskaya oblast, Novgorodskaya oblast, Pskovskaya oblast, Yaroslavskaya oblast), Slovakia, Spain, Sweden, Switzerland, Ukraine, UK))) and hosts.

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