Additions to the Vascular Flora of Ontario, Canada, from the Sutton Ridges, Hudson Bay Lowland Ecoregion

Field studies in the Hudson Bay Lowland ecoregion of northern Ontario during 2010 resulted in the discovery of four native vascular plant species not previously confirmed from the province: Arctic Bellflower (Campanula uniflora; Campanulaceae), Lapland Diapensia (Diapensia lapponica; Diapensiaceae), Alpine Azalea (Kalmia procumbens; Ericaceae), and Alpine Brook Saxifrage (Saxifraga rivularis; Saxifragaceae). These four species are widespread arctic plants occurring in both North America and Eurasia and were found on the Sutton Ridges, a Precambrian bedrock inlier surrounded by the extensive wetlands of the Hudson Bay Lowland

Recent Expansion of Spiranthes cernua (Orchidaceae) into Northern Ontario due to Climate Change?

The expansion northward since 1980 of the native orchid Nodding Ladies'-tresses (Spiranthes cernua) in Ontario is described and assessed with respect to the possibility of the expansion being a recent response to climate change. Based on evidence of the extent of the orchid's distribution from prior botanical surveys, it is considered to be a recent arrival in a previously unoccupied area of northern Ontario. Second-order polynomial regression revealed a significant increase in mean yearly temperature of 1 Celsius degree in parts of northern Ontario since 1980. Based on close association with limits of yearly temperature, this is considered sufficient to explain the expansion, and the individual extensions of range fit well into the anticipated newly available territory. Based on a consideration of the location of extensions with respect to plant hardiness zones, the landscape that has become available since 1980 is 160 000 km2, in a band approximately 200 km wide across the southern part of northern Ontario. Assuming further temperature increases, this band is expected to expand to a width of approximately 300 km by 2040, providing 360 000 km2 of newly available landscape over six decades. Spiranthes cernua produces thousands of seeds per flower by adventitious embryony, allowing single individuals to establish populations through long-distance wind dispersal with no reliance on pollination. Spiranthes cernua is therefore well adapted to quickly colonize new territory that becomes available through climate warming

Bur Buttercup, Ranunculus testiculatus, New to Eastern Canada

Bur Buttercup (Ranunculus testiculatus) is newly reported for eastern Canada based on two collections from campgrounds in southern Ontario. This vernal, annual, Eurasian weed is widespread in western North America and is expanding its range in the east; it should be expected elsewhere in eastern Canada. Bur Buttercup is known to be toxic to livestock

Fetid Dogweed (Dyssodia papposa; Asteraceae) and Slender Russian Thistle (Salsola collina; Amaranthaceae), New to Alberta, Canada

Two non-native vascular plants, Fetid Dogweed (Dyssodia papposa; Asteraceae) and Slender Russian Thistle (Salsola collina; Amaranthaceae), are added to the flora of Alberta, Canada, based on collections and sight records made in 2011. Fetid Dogweed was found along roadsides at eight sites in southern Alberta, and Slender Russian Thistle was found along a hiking trail in Dinosaur Provincial Park near Drumheller. Both species are weedy and are probably expanding their range in North America

Hairy St. John’s-wort (Hypericum hirsutum L.) in the Toronto Area, New to North America

Hairy St. John’s-wort (Hypericum hirsutum L.) is newly reported for Canada and North America based on two collections from the Toronto, Ontario, area. This perennial Eurasian herb has a large natural range from western Europe to western China. It grows in moist successional, edge, and meadow habitats. It should be looked for in such habitats elsewhere in eastern North America

Slender False Brome (Brachypodium sylvaticum, Poaceae), an Invasive Grass New to Ontario, Canada

Brachypodium sylvaticum, Slender False Brome, an invasive Eurasian grass, is reported for the first time in Ontario and eastern Canada from Grey County, southern Ontario. The only previous Canadian record is from Vancouver Island, British Columbia. The species is widespread in the U.S. Pacific Northwest, where it is spreading aggressively throughout much of western Oregon. In the eastern U.S.A., known populations are few and localized, although the species will likely spread

Flora of the Erie Islands: A Review of Floristic, Ecological and Historical Research and Conservation Activities, 1976 – 2010

Author Institution: Lake Erie Islands Chapter, Black Swamp Conservancy, Put-in-Bay, OHAuthor Institution: Biota of North American Program, Chapel Hill, NCAuthor Institution: Ontario Natural Heritage Information Centre, Ministry of Natural Resources, Ontario, CanadaThe purpose of this review is to survey the floristic, ecological and historical research about the Erie Islands and its flora since 1976 and to describe efforts to conserve Erie Island habitats. Island location records, surveys and multi-island inventories reveal that over 1,000 vascular plant taxa are known from the Erie Islands and new records continue to be found. Alvar habitats, rare globally, occur on the Erie Islands and are a focus of conservation efforts. Forest composition is primarily related to island elevation above lake level and moisture availability. Patterns of succession in abandoned vineyards and orchards are not the same due to differing agricultural practices prior to abandonment that favored different suites of invading species. Applying island biogeographic theory and methods to analyze the flora of the Erie Islands demonstrated that the indigenous flora on individual islands varies in relation to the size of an island in accordance with biogeographic theory whereas the non-indigenous flora on smaller islands is a constantly changing random subset of the non-indigenous flora of larger islands. Geological and palynological research about pre-settlement forests support the historic descriptions of these forests by early European settlers. Governmental and private efforts to preserve Erie Island habitats and the flora therein expanded significantly in the past 35 years. Efforts by the State of Ohio, the Province of Ontario, non-governmental organizations and island communities to acquire and conserve unique island habitats resulted in the preservation of important alvar, wetland and woodland habitat on large islands and the acquisition of Green Island, Middle Island and West Sister Island

The Effect of Mobility and Strength Training on Firefighter Cadet Functional Mobility

Strength and Conditioning programs have positive effects on athletic performance (Hedrick, 2002). Similarly, firefighters have to be adequately fit to perform their job duties which require muscular strength and endurance, and aerobic fitness (Smith, 2011). Thus, firefighter’s health and fitness, including mobility, is crucial in their job performance. PURPOSE: We examined the effects of a strength, conditioning, and mobility program on functional mobility in firefighter cadets. METHODS: 43 firefighter cadets who were enrolled in a 12-week basic firefighter academy course participated. Cadets were separated into one of three cohorts; 1) No program; 2) Unmonitored Program; and 3) Indirectly Monitored Program. Participants either completed daily physical fitness training tasks on their own or set by fire instructors. A certified strength and conditioning specialist (CSCS) set up the physical fitness training modes for cohorts 2 and 3; however, the CSCS did not monitor training directly. Mobility was assessed by ROM exercises using DARI Motion Capture® (DARI Motion, Kansas City, Missouri). Motions included bodyweight bilateral squat, unilateral squat right and left, forward lunge right and left, and lateral lunge right and left. Post testing was completed 12-weeks after initial assessments. Statistical analysis was conducted using SPSS. RESULTS: Overall Cohort 3, Indirectly Monitored Program, had the greatest positive mobility changes when comparing pre post testing. There were significant increases in bodyweight squat left knee flexion in cohort three (115.58±16.0 to 124.56±16.42, p=0.02). Bodyweight squat left ankle flexion also significantly increased (24.20±11.78 to 34.98±12.03, p=0.005). Significant increases in bodyweight squat percentage of lower body height in cohort three were also positive (47.3±10.7% to 52.7±10.0%, p=0.037), indicating that greater squat depth was achieved after the indirectly monitored program. However, negative effects on the bodyweight squat includes left and right knee valgus both increasing showing a lack of stability in dynamic knee control while squatting (left: 4.65±1.33to 5.02±0.66, p=0.039; right: 3.97±2.06 to 4.87±1.33, p=0.005). Unilateral squat depth percentage of lower body showed significant changes in Cohort 3 (26.9±8.3% to 32.0±13.6%, p=0.032). Unilateral squat knee and ankle flexion both showed positive significant differences (knee: 83.70±18.05 to 94.62±23.49, p=0.02; ankle: 24.34±9.38 to 34.57±12.25, p=0.001). CONCLUSION: The results of the current study suggest that even indirect monitoring of tactical strength and conditioning programming can have a positive effect on firefighter cadet’s functional mobility. In the future, programming should be more direct including the installation of tactical personnel to aid and facilitate training programs with proper supervision

Does Diet Self Efficacy and Stress Affect Body Composition in College Students?

Body composition is influenced by many variables, including stress and nutrition, which in turn is affected by the person’s belief in his or her ability to manage a diet even in the face of obstacles (Nastaskin, 2015). PURPOSE: This study examined the influence of college students’ dietary self-efficacy and responses to stress on body weight and body fat percentage from their freshman to senior year. METHODS: Fourteen participants (11W/3M, 18.1 ± 0.4 yrs, 165.3 ± 7.7 cm, 64.9 ± 14.2 kg at Year 1) underwent whole-body dual x-ray absorptiometry (DEXA, Hologic W). They also completed 2 questionnaires: 1) Diet Self-Efficacy (Knäuper, 2013), which assesses three factors that could negatively impact diet: high caloric food temptation (HCF), social/internal factors (SIF), and negative emotional events (NEE) (0-100 range for each score) and 2) the Vanderbilt Responses to Stress - Peer Stress College, which is a 57-question survey measuring coping and involuntary stress responses to specific situations (0-50 range). All assessments were completed annually from the students’ freshman to senior year. Data were analyzed using Pearson correlation. RESULTS: Overall, participants gained 5.1 ± 5.7 kg (6.6 ± 8.1%) of body weight and 0.5 ± 4.0% of body fat over the 4 years. At Year 1, diet self-efficacy scores were moderate (HCF 47.8 ± 22.1, SIF 56.7 ± 21.7, NEE 64.9 ± 22.0). Over four years, there was a strong negative correlation between NEE and body weight in 3 participants(r = -0.98, r = -0.96, r = -0.86), indicating that when these participants were better able to resist eating temptation when faced with a negative emotional event, they had a lower body weight. Also, SIF was trending towards a significant inverse relationship with body fat percentage (p = 0.07). Stress scores were inversely related with body fat percentage in the majority of the participants with the strongest correlation at (r = -0.96). CONCLUSION: Nutritional self-efficacy could influence weight changes in college students. However, any influence is highly individualized. Based on the limited number of participants in our study, it is too early to make generalized statements