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1. Developing rural insights for building age-friendly communities

Author:
McCrillis, Elizabeth; Skinner, Mark W.; Colibaba, Amber
Source:
Journal of rural studies 2021 v.81 pp. 336-344
ISSN:
0743-0167
Subject:
Ontario,   etc   ; case studies; rural communities;     Show all 3 Subjects
Abstract:
... Notwithstanding a few exceptions, the global age-friendly literature remains mostly silent on the problem of the longer-term, sustainable implementation of age-friendly initiatives. This paper seeks to address this gap by presenting rural insights from a multi-site case study in Ontario, Canada, that considers the influence of unique, rural community contexts that may differentially impact paramet ...
DOI:
10.1016/j.jrurstud.2020.10.053

2. The future of agroecology in Canada: Embracing the politics of food sovereignty

Author:
Laforge, Julia M.L.; Dale, Bryan; Levkoe, Charles Z.; Ahmed, Faris
Source:
Journal of rural studies 2021 v.81 pp. 194-202
ISSN:
0743-0167
Subject:
Ontario,   etc   ; agroecology; food sovereignty; governance;     Show all 4 Subjects
Abstract:
... Agroecology and food sovereignty have gained a significant foothold in the Global South; however, in the Global North, there are significant challenges hindering the adoption of these concepts. Drawing on participants' insights following an Agroecology Field School and Research Summit held in Ontario, Canada in 2018, this paper presents the context for agroecology's potential expansion in this cou ...
DOI:
10.1016/j.jrurstud.2020.10.025

3. Prices paid for farmland in Ontario: Does buyer type matter?

Author:
Vyn, Richard J.; Shang, Max Zongyuan
Source:
Canadian journal of agricultural economics 2021 v.69 no.1 pp. 59-72
ISSN:
0008-3976
Subject:
Ontario,   etc   ; agricultural land; agricultural productivity; farmers; farms;     Show all 5 Subjects
Abstract:
... In the wake of the substantial increases in farmland values that have occurred in Ontario since 2008, concerns have been expressed regarding the potential influence of nonfarmer buyers, such as investment companies and foreign buyers, on prices paid for farmland. To examine whether these concerns may be warranted, this paper estimates the impact of nonfarmer buyers on sale prices for farmland in O ...
DOI:
10.1111/cjag.12253

4. Late Ice-Off Negatively Influences Breeding in Common Loons (Gavia immer)

Author:
Bianchini, Kristin; Alvo, Robert; Tozer, Douglas C.; Mallory, Mark L.
Source:
Northeastern naturalist 2021 v.28 no.1 pp. 65-76
ISSN:
1092-6194
Subject:
Ontario,   etc   ; Gavia immer; lakes; reproductive success;     Show all 4 Subjects
Abstract:
... Productivity of Gavia immer (Common Loon) has declined in Ontario and across southern Canada. Variations in the timing of lake ice-off have the potential to negatively influence productivity of Common Loons, but there is conflicting evidence as to how ice-off dates affect this species' reproductive success. Our study investigated the association between annual ice-off timing in southern Ontario an ...
DOI:
10.1656/045.028.0105

5. The influence of human population change and aquatic invasive species establishment on future recreational fishing activities to the Canadian portion of the Laurentian Great Lakes

Author:
Hunt, Len M.; Phaneuf, Daniel J.; Abbott, Joshua K.; Fenichel, Eli P.; Rodgers, Jennifer A.; Buckley, Jeffrey D.; Drake, D. Andrew R.; Johnson, Timothy B.
Source:
Canadian journal of fisheries and aquatic sciences 2021 v.78 no.3 pp. 232-244
ISSN:
1205-7533
Subject:
Lake Ontario; Ontario,   etc   ; Ctenopharyngodon idella; human population; invasive species; models; population dynamics; urbanization;     Show all 8 Subjects
Abstract:
... We project how human population change (2018 to 2046) and aquatic invasive species (AIS) establishment events of bigheaded carps (Hypophthalmichthys spp.) and grass carp (Ctenopharyngodon idella) might combine to affect future Canadian recreational fishing activity for the Laurentian Great Lakes. Human population change is expected to affect the total number of fishing trips (increase of about 143 ...
DOI:
10.1139/cjfas-2020-0159

6. Deep decarbonization in Northeastern North America: The value of electricity market integration and hydropower

Author:
Rodríguez-Sarasty, Jesús A.; Debia, Sébastien; Pineau, Pierre-Olivier
Source:
Energy policy 2021 v.152 pp. 112210
ISSN:
0301-4215
Subject:
Ontario,   etc   ; electricity; energy policy; greenhouses; markets; models; water power; Quebec;     Show all 8 Subjects
Abstract:
... In several countries, electricity systems are under strong decarbonization pressure. In particular, the Canadian provinces of Quebec and Ontario as well as the states of the northeastern United States have committed to cut their greenhouse emissions by more than 70% (with respect to emission levels of 1990). Increased collaboration and integration between jurisdictions could decrease such decarbon ...
DOI:
10.1016/j.enpol.2021.112210

7. Trade-Offs among Release Treatments in Jack Pine Plantations: Twenty-Five Year Responses

Author:
Deighton, Holly D.; Bell, Frederick Wayne; Thiffault, Nelson; Searle, Eric B.; Leitch, Mathew; Sharma, Mahadev; Dacosta, Jennifer
Source:
Forests 2021 v.12 no.3
ISSN:
1999-4907
Subject:
Ontario,   etc   ; Pinus banksiana; conifers; species diversity; tree growth; trees;     Show all 6 Subjects
Abstract:
... We assessed 27 indicators of plant diversity, stand yield and individual crop tree responses 25 years post-treatment to determine long-term trade-offs among conifer release treatments in boreal and sub-boreal forests. This research addresses the lack of longer-term data needed by forest managers to implement more integrated vegetation management programs, supporting more informed decisions about r ...
DOI:
10.3390/f12030370

8. Detection of Babesia odocoilei in Ixodes scapularis Ticks Collected in Southern Ontario, Canada

Author:
Scott, John D.; Pascoe, Emily L.; Sajid, Muhammad S.; Foley, Janet E.
Source:
Pathogens 2021 v.10 no.3
ISSN:
2076-0817
Subject:
Ontario,   etc   ; Babesia; Ixodes scapularis; cats; dogs; erythrocytes; genetic databases;     Show all 7 Subjects
Abstract:
... Tick-borne zoonotic diseases have an economic and societal impact on the well-being of people worldwide. In the present study, a high frequency of Babesia odocoilei, a red blood cell parasite, was observed in the Huronia area of Ontario, Canada. Notably, 71% (15/21) blacklegged ticks, Ixodes scapularis, collected from canine and feline hosts were infected with B. odocoilei. Consistent with U.S. st ...
DOI:
10.3390/pathogens10030327

9. Water Insecurity in Ontario First Nations: An Exploratory Study on Past Interventions and the Need for Indigenous Water Governance

Author:
Arsenault, Rachel
Source:
Water 2021 v.13 no.5
ISSN:
2073-4441
Subject:
Ontario,   etc   ; indigenous knowledge; leadership; tourists; wastewater; water; water security;     Show all 7 Subjects
Abstract:
... In 2018, I began an exploratory study involving fourteen Ontario First Nation participants that examined some First Nation water security challenges and opportunities. In acknowledgment that many of the government assessments, reports, and investments to date have failed, this study aims to determine the causes of the water crisis as well as potential solutions by sharing Indigenous perspectives a ...
DOI:
10.3390/w13050717

10. The geographic distribution of un-immunized children in Ontario, Canada: Hotspot detection using Bayesian spatial analysis

Author:
Wilson, Sarah E.; Bunko, Andrean; Johnson, Steven; Murray, Jillian; Wang, Yue; Deeks, Shelley L.; Crowcroft, Natasha S.; Friedman, Lindsay; Loh, Lawrence C.; MacLeod, Melissa; Taylor, Christina; Li, Ye
Source:
Vaccine 2021 v.39 no.8 pp. 1349-1357
ISSN:
0264-410X
Subject:
Ontario,   etc   ; Bayesian theory; geographical distribution; models; risk; vaccines;     Show all 6 Subjects
Abstract:
... In Ontario, Canada, little is currently known about the extent to which un-immunized children may cluster geographically. Our objectives were to: describe the geographic distribution of fully un-immunized children; identify geographic clusters (hotspots) of un-immunized children; and to characterize the contribution of spatial effects and covariates on hotspots, where found.Our analytic cohort con ...
DOI:
10.1016/j.vaccine.2020.11.017

11. Revisiting water retention curves for simple hydrological modelling of peat

Author:
Dimitrov, Dimitre D.; Lafleur, Peter M.
Source:
Hydrological sciences journal 2021 v.66 no.2 pp. 252-267
ISSN:
2150-3435
Subject:
Ontario,   etc   ; field capacity; peat; peatlands; water table; Alberta;     Show all 6 Subjects
Abstract:
... Accurate modelling of peat water contents (θ) is critical for wetland studies. We modified the Campbell and Van Genuchten soil water retention curves (SWRCs) by replacing their empirical parameters with measurable properties. Combining the water table depth (d WT) into SWRCs, we derived formulae for calculating volumetric θ from d WT, coded in a simple model to test our hypotheses that d WT is a r ...
DOI:
10.1080/02626667.2020.1853132

12. Environmental conditions modulate compensatory effects of site dependence in a food‐caching passerine

Author:
Sutton, Alex O.; Strickland, Dan; Freeman, Nikole E.; Norris, D. Ryan
Source:
Ecology 2021 v.102 no.1 pp. e03203
ISSN:
0012-9658
Subject:
Ontario,   etc   ; Passeriformes; fecundity; population density; territoriality; wild animals;     Show all 6 Subjects
Abstract:
... Although density regulates the abundance of most wild animal populations by influencing vital rates, such as fecundity and survival, the mechanisms responsible for generating negative density dependence are unclear for many species. Site dependence occurs when there is preferential filling of high‐quality territories, which results in higher per capita vital rates at low densities because a larger ...
DOI:
10.1002/ecy.3203

13. Managing plantation density through initial spacing and commercial thinning: yield results from a 60-year-old red pine spacing trial experiment

Author:
Thiffault, Nelson; Hoepting, Michael K.; Fera, Jeff; Lussier, Jean-Martin; Larocque, Guy R.
Source:
Canadian journal of forest research 2021 v.51 no.2 pp. 181-189
ISSN:
1208-6037
Subject:
Ontario,   etc   ; Pinus resinosa; forests; mortality; planting density; research; trees;     Show all 7 Subjects
Abstract:
... We report on a 60-year-old red pine (Pinus resinosa Aiton) spacing trial experiment located in Ontario, Canada, that included the combinations between six initial spacings (from 1.2 to 3.0 m) and the presence or absence of a commercial thinning (CT) regime, as well as their impacts on quadratic mean diameter (QMD) and stand volume yield. The CT regime, initiated at age 30, targeted a residual basa ...
DOI:
10.1139/cjfr-2020-0246

14. Speed of sound gradients due to summer thermal stratification can reduce the detection range of acoustic fish tags: results from a field study in Hamilton Harbour, Ontario

Author:
Wells, Mathew G.; Li, Jingzhi; Flood, Bryan; Kuai, Yulong; Brooks, Jill L.; Cooke, Steven J.; Semcesen, Patricia; Midwood, Jonathan D.
Source:
Canadian journal of fisheries and aquatic sciences 2021 v.78 no.3 pp. 269-285
ISSN:
1205-7533
Subject:
Ontario,   etc   ; acoustics; fish; littoral zone; models; summer; telemetry; temperature profiles;     Show all 8 Subjects
Abstract:
... Understanding detection range is a key factor for the use of acoustic telemetry in fisheries research. Lakes have strong seasonal changes in thermal stratification, as well as short-term changes due to internal seiches. These thermal gradients in lakes imply strong sound-speed gradients that can refract and diverge acoustic signals, leading to acoustic attenuation and smaller detection range. Usin ...
DOI:
10.1139/cjfas-2020-0078

15. Investigating groundwater-lake interactions in the Laurentian Great Lakes with a fully-integrated surface water-groundwater model

Author:
Xu, Shu; Frey, S.K.; Erler, A.R.; Khader, O.; Berg, S.J.; Hwang, H.T.; Callaghan, M.V.; Davison, J.H.; Sudicky, E.A.
Source:
Journal of hydrology 2021 v.594 pp. 125911
ISSN:
0022-1694
Subject:
Lake Ontario; Ontario,   etc   ; Phanerozoic eon; basins; climatology; groundwater; lakes; models; rivers; shorelines; summer; winter; Lake Michigan; Michigan;     Show all 14 Subjects
Abstract:
... Modelling groundwater-surface water (GW-SW) interactions at scales of large river basins is a difficult challenge. In this study, a fully-integrated surface water-groundwater model accounting for hydrologic seasonality is developed for the 766,000 km² Laurentian Great Lakes basin, and applied towards the characterization of groundwater-lake (GW-lake) interactions in the five Great Lakes under mont ...
DOI:
10.1016/j.jhydrol.2020.125911

16. Comparison of dimensionality reduction techniques for cross-source transfer of fluorescence contaminant detection models

Author:
Li, Ziyu; Peleato, Nicolas M.
Source:
Chemosphere 2021 v.276 pp. 130064
ISSN:
0045-6535
Subject:
Lake Ontario,   etc   ; fluorescence; fluorescence emission spectroscopy; models; principal component analysis; rivers; water quality;     Show all 7 Subjects
Abstract:
... Fluorescence spectroscopy shows promise as a tool for monitoring water quality due to its real-time capabilities and sensitive detection of several compounds of interest. Previous work has shown the possible use of fluorescence to detect and quantify low levels of polycyclic aromatic hydrocarbons and fluorescing pesticides. However, the fluorescence-based contaminant detection models are highly so ...
DOI:
10.1016/j.chemosphere.2021.130064

17. Modelling climate effects on diameter growth of red pine trees in boreal Ontario, Canada

Author:
Sharma, Mahadev
Source:
Trees, forests and people 2021 v.4 pp. 100064
ISSN:
2666-7193
Subject:
Ontario,   etc   ; Pinus resinosa; bark; climate change; heat; meteorological data; tree and stand measurements; tree growth;     Show all 8 Subjects
Abstract:
... The climate is changing and these changes may affect tree growth. Diameter growth models are one of the essential inputs for many growth and yield projection systems. Therefore, diameter growth models that can be used to estimate inside bark diameter at breast height (DBH) for red pine plantations in a changing climate were developed. One hundred and fifty red pine (Pinus resinosa Ait.) trees were ...
DOI:
10.1016/j.tfp.2021.100064

18. Study of the relationship between untypable and typable isolates of Streptococcus suis recovered from clinically ill and healthy nursery pigs

Author:
Denich, Leann; Farzan, Abdolvahab; Friendship, Robert; Arndt, Emily; Ricker, Nicole; Gottschalk, Marcelo; Poljak, Zvonimir
Source:
Veterinary microbiology 2021 v.257 pp. 109064
ISSN:
0378-1135
Subject:
Ontario,   etc   ; Streptococcus suis; disease severity; farms; microbiology; phylogeny; polysaccharides; respiratory system; serotypes;     Show all 9 Subjects
Abstract:
... Streptococcus suis naturally colonizes the upper respiratory tract of pigs and can lead to severe disease conditions. Although there are several serotypes associated with disease, untypable isolates have also been observed. The objective of this study was to investigate the relatedness of untypable S. suis isolates detected in clinical cases and healthy pigs in Ontario, Canada, and their relation ...
DOI:
10.1016/j.vetmic.2021.109064

19. A focus group study of Ontario dairy producer perspectives on neonatal care of male and female calves

Author:
Wilson, Devon J.; Pempek, Jessica A.; Roche, Steve M.; Creutzinger, Katherine C.; Locke, Samantha R.; Habing, Gregory; Proudfoot, Kathryn L.; George, Kelly A.; Renaud, David L.
Source:
Journal of dairy science 2021 v.104 no.5 pp. 6080-6095
ISSN:
0022-0302
Subject:
Ontario,   etc   ; colostrum; dairy industry; economic costs; farms; females; focus groups; herds; infrastructure; males; motivation; prioritization; weather;     Show all 13 Subjects
Abstract:
... Providing optimal calf care remains a challenge on many dairy farms and has important implications for the future health, welfare, and productivity of male and female calves. Recent research suggests that male dairy calves receive a lower quality of care early in life than female calves, but further investigation is required to determine the factors that influence this disparity. The objectives of ...
DOI:
10.3168/jds.2020-19507

20. Nutrient enrichment effects are conditional on upstream nutrient concentrations: Implications for bioassessment in multi-use catchments

Author:
Pearce, Nolan J.T.; Lavoie, Isabelle; Thomas, Kathryn E.; Chambers, Patricia A.; Yates, Adam G.
Source:
Ecological indicators 2021 v.124 pp. 107440
ISSN:
1470-160X
Subject:
Ontario,   etc   ; ; anthropogenic activities; biological assessment; climate change; ecosystems; humans; macroinvertebrates; population growth; sewage effluent; streams;     Show all 11 Subjects
Abstract:
... Human impacts on stream ecosystems are expected to intensify with population growth and climate change. Decisive information on how stream communities respond to cumulative human impacts is therefore integral for protecting streams draining multi-use catchments. To determine cumulative influences of nutrient enrichment and assess more nuanced approaches for the evaluation of human impacts, we pres ...
DOI:
10.1016/j.ecolind.2021.107440