Results 121 to 130 of about 124,617 (262)

Influence of drought identification methods on analyzing and assessing responses of water quality to droughts

Ecological Indicators
Hydrological drought, a global extreme event impacting water resources and ecosystems, is characterized by absolute (fixed drought threshold, FDT) or relative (variable drought threshold, VDT) low streamflow metrics. These metrics influence water quality
Weijie Zhang, Jiefeng Wu, Huaxia Yao, Jie Wang   +3 more
doaj   +1 more source

Reintroduction of an Endangered Butterfly, the Mottled Duskywing (Erynnis martialis)

Animal Conservation, EarlyView.
We reintroduced Mottled Duskywing (Erynnis martialis), an endangered skipper butterfly, at different life‐stages to restored oak savanna habitat in Ontario, Canada and then performed intensive post‐release monitoring. Our results show that, at one of three sites, a population was established within two years of initiating releases and that pupae and ...
Michelle Polley, Jessica E. Linton, Adrienne Brewster, Alistair S. MacKenzie, Nusha Keyghobadi, Jessica Steiner, Taylor Kerekes, D. Ryan Norris   +7 more
wiley   +1 more source

Climate Change Impacts on Agricultural Watershed Hydrology, Southern Ontario: An Integrated SDSM–SWAT Approach

Hydrology
Understanding the local-scale impacts of climate change is critical for protecting water resources and ecosystems in vulnerable agricultural regions. This study investigates the Canagagigue Creek Watershed (CCW) in Southern Ontario, Canada, which is an ...
Rong Hu, Ramesh Rudra, Rituraj Shukla, Ashok Shaw, Pradeep Goel   +4 more
doaj   +1 more source

Effectiveness of Best Management Cropping Systems to Abate Greenhouse Gas Emissions [PDF]

Best management practices (BMPs) for cropping systems that involve conservation tillage and nutrient management are proposed as potential win-win solutions for both farmers and the environment.
Jayasundara, Susantha, Meyer-Aurich, Andreas, Wagner-Riddle, Claudia, Weersink, Alfons   +3 more
core   +1 more source

Species‐Specific Genetic Patterns in Sympatric Freshwater Turtles Challenge a Generalized Multi‐Species Conservation Approach

Animal Conservation, EarlyView.
We compared genetic diversity and spatial genetic structure in the snapping turtle (Chelydra serpentina; left panel), Blanding's turtle (Emydoidea blandingii; bottom right), and spotted turtle (Clemmys guttata; top right) sampled in areas of co‐occurrence across ~49,160 km2.
Christina M. Davy, Erica Newton, Niamh Wall, Robert W. Murphy   +3 more
wiley   +1 more source

Phosphorus mass balance of 11 temperate agricultural headwater catchments: accumulating and depleting watersheds exhibit contrasting stream load patterns

Environmental Research: Water
Agriculture is one source of excess phosphorus (P) that contributes to the eutrophication of waters in the lower Great Lakes basin. To achieve P reduction goals set out by the Western Basin of Lake Erie Collaborative Agreement, a better understanding of ...
K M Biagi, A Pardy, M Luymes, B Mazumder, J L Thomas, R J Sorichetti, C C Wellen   +6 more
doaj   +1 more source

Seasonal Habitat Selection by a Threatened Ungulate in an Industrializing Boreal Landscape

Animal Conservation, EarlyView.
Understanding habitat selection by Threatened wood bison in landscapes characterized by anthropogenic disturbance is important for conservation planning. During summer and winter, bison selected for linear (e.g., roads, seismic lines, pipelines) and polygonal (e.g., well sites) disturbances, unless there were high densities of linear features.
Lisa J. Koetke, Christopher J. Lewis, Ingebjørg Jean K. Hansen, Thomas S. Jung, Chris J. Johnson   +4 more
wiley   +1 more source

Association of Brain‐derived Neurotrophic Factor Polymorphisms With Alcohol Use Disorder: An Updated Meta‐Analysis of Genetic Association Studies

Brain and Behavior
Background Brain‐derived neurotrophic factor (BDNF) has been proposed to play a role in chronic alcohol consumption. However, studies investigating the association of single nucleotide polymorphisms (SNPs) in the BDNF gene with alcohol use disorder (AUD),
Anorut Jenwitheesuk, Noel Pabalan, Pairath Tapanadechopone, Hamdi Jarjanazi, Kittipun Arunphalungsanti, Phuntila Tharabenjasin   +5 more
doaj   +1 more source

Atlas of the Breeding Birds of Ontario 2001–2005.— Michael D. Cadman , Donald A. Sutherland , Gregor G. Beck , Denis Lepage , and Andrew R. Couturier , editors. 2007. Copublished by Bird Studies Canada, Environment Canada, Ontario Field Ornithologists, Ontario Ministry of Natural Resources, and Ontario Nature, Toronto. xxii + 706 pp. ISBN 978-1-896059-15-0. US$92.50 (cloth). [PDF]

The Condor, 2010
openaire   +1 more source

Distribution and Concentration of Canadian Livestock [PDF]

Livestock Production/Industries,
Beaulieu, Martin S., Bedard, Frederic, Lanciault, Pierre   +2 more
core   +1 more source