Results 51 to 60 of about 5,020 (178)

Ice-cover is the principal driver of ecological change in High Arctic lakes and ponds. [PDF]

PLoS ONE, 2017
Recent climate change has been especially pronounced in the High Arctic, however, the responses of aquatic biota, such as diatoms, can be modified by site-specific environmental characteristics.
Katherine Griffiths, Neal Michelutti, Madeline Sugar, Marianne S V Douglas, John P Smol   +4 more
doaj   +1 more source

Conservation challenges and opportunities for native apple (Malus) species in Canada

PLANTS, PEOPLE, PLANET, EarlyView.
Apple, one of the world's most widely cultivated and economically important fruit crops, has two wild relatives native to Canada. In this review, we describe the importance of these native apple species to Indigenous heritage and the current threats the species faces due to pests, diseases, and habitat loss.
Terrell T. Roulston, Chelsey Geralda Armstrong, Mckenna Batstone, Kyle Bobiwash, Sylvia Grace Borda, Dionne Bunsha, Claudia Ciotir, Brian C. Husband, Paul Manning, Tara L. Moreau, Amritpal S. Singh, Tyler W. Smith, Jens Ulrich, Zoë Migicovsky   +13 more
wiley   +1 more source

Assessing the utility of sulfur isotope values for understanding mercury concentrations in water and biota from high Arctic lakes

Arctic Science, 2019
Methylmercury (MeHg) biomagnifies through aquatic food webs resulting in elevated concentrations in fish globally. Stable carbon and nitrogen isotopes are frequently used to determine dietary sources of MeHg and to model its biomagnification.
Gretchen L. Lescord, Meredith G. Clayden, Karen A. Kidd, Jane L. Kirk, Xiaowa Wang, Nelson J. O’Driscoll, Derek C.G. Muir   +6 more
doaj   +1 more source

Carbon fluxes and soil carbon dynamics along a gradient of biogeomorphic succession in alpine wetlands of Tibetan Plateau

Fundamental Research, 2023
Hydrological changes under climate warming drive the biogeomorphic succession of wetlands and may trigger substantial carbon loss from the carbon-rich ecosystems. Although many studies have explored the responses of wetland carbon emissions to short-term
Hao Wang, Lingfei Yu, Litong Chen, Zhenhua Zhang, Xuefei Li, Naishen Liang, Changhui Peng, Jin-Sheng He   +7 more
doaj   +1 more source

Hydropower Effluent as a Marine Pollutant; Impacts of River Regulation on Estuarine and Coastal Ecology

River Research and Applications, EarlyView.
ABSTRACT The confluence of rivers with the ocean creates biological hotspots where temperature, salinity, and nutrients mix to provide excellent conditions for rearing, growth, and refuge to a multitude of organisms. Worldwide, estuaries are highly productive and biodiverse.
Robert J. Lennox, Jan Grimsrud Davidsen, Sindre H. Eldøy, Bronwyn M. Gillanders, Ulrich Pulg, Kirstine Thiemer, William M. Twardek, Ava J. A. Sergio, Øystein Varpe, Gaute Velle, Knut Wiik Vollset   +10 more
wiley   +1 more source

Toxicity of Commonly Used Plasticizers to the Freshwater Organisms Tilapia sparrmanii (Fish) and Caridina nilotica (Shrimp): Lethal and Sublethal Effects

Environmental Toxicology, EarlyView.
ABSTRACT The toxicity of microplastics in aquatic environments is usually due to plasticizers, the chemical additives that keep the plastic polymers together. Thus, the current study reports on the toxicity of three common plasticizers found in freshwater ecosystems and their impacts on two South African freshwater organisms at the organismal and ...
Paul Kojo Mensah, Neil John Griffin, Ntombekhaya Mgaba, Margaret Fafa Awushie Akwetey, Oghenekaro Nelson Odume   +4 more
wiley   +1 more source

Fatty acid stable isotope signatures of molluscs exposed to finfish farming outputs

Aquaculture Environment Interactions, 2016
Tracing the flow of nutrients from aquaculture operations to the surrounding biota is important for environmental monitoring and developing integrated aquaculture practices.
SM Colombo, CC Parrish, MJ Whiticar
doaj   +1 more source

Soil and microbial responses to wild ungulate trampling depend more on ecosystem type than trampling severity

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Physical trampling is a ubiquitous activity of walking vertebrates, but is poorly understood as a mechanism impacting biogeochemical cycling in soil. Lack of detailed knowledge of soil abiotic–biotic interactions underlying trampling effects, and the primary sources of ...
G. Adam Meyer, Shawn J. Leroux, Kathryn E. Hargan, Niels van Miltenburg   +3 more
wiley   +1 more source

Battle of the giants: Clonal expansion rates, effects on wetland plant communities and competition between introduced Phragmites australis australis and native Phragmites australis americanus

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The success of non‐native species in novel environments has received worldwide attention, resulting in dozens of hypotheses trying to explain this demographic success.
Bernd Blossey, Victoria Nuzzo, Andrea Dávalos   +2 more
wiley   +1 more source

Relationships between Potentially Toxic Elements in intertidal sediments and their bioaccumulation by benthic invertebrates.

PLoS ONE, 2019
The bioaccumulation of Potentially Toxic Elements (PTEs) by benthic invertebrates in estuarine sediments is poorly understood. We sampled and analysed PTEs in sediments and benthic invertebrates from five sites in the Skeena Estuary (British Columbia ...
Tom Sizmur, Lily Campbell, Karina Dracott, Megan Jones, Nelson J O'Driscoll, Travis Gerwing   +5 more
doaj   +1 more source