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The Biology Of Canadian Weeds. 131. Polygonum Aviculare L., Mihai Costea, François J. Tardif

Biology Faculty Publications

A review and assessment of biological information as well as personal data are provided for Polygonum aviculare in Canada. The species has been revised taxonomically and the six subspecies that occur in Canada are presented. Three of the subspecies, P. aviculare subsp. aviculare, P. aviculare subsp. neglectum and P. aviculare subsp. depressum are weeds introduced to Canada from Europe. A fourth subspecies, P. aviculare subsp. buxiforme is apparently native to North America. The geographical distribution of the latter four subspecies is very wide. Plants exhibit a high phenotypic plasticity and genetic variability, and they easily adapt to a multitude …

Physical Activity Context And University Students Propensity To Meet The Centers For Disease Control And Prevention/American College Of Sports Medicine Guidelines, Shauna M. Burke, Albert V. Carron, Mark Eys

Kinesiology and Physical Education Faculty Publications

Background: Previous research shows that exercise context is important for exercise adherence – exercising alone is associated with reduced adherence whereas exercising with others is associated with increased adherence. The purpose of the study was to examine whether exercising in one or a combination of four contexts for physical activity (in a structured class, with others outside of a structured class, alone but in an exercise setting, and completely alone) is related to the degree to which university students meet prescribed (i.e., CDC/ACSM) guidelines for aerobic activity.

Material/Methods: Males (n=196) and females (n=398) completed a self-reported physical activity questionnaire pertaining …