Results 71 to 80 of about 270,892 (351)

Extreme drought to extreme floods: summary of hydrologic conditions in Georgia, 2009 [PDF]

open access: yesFact Sheet, 2010
The U.S. Geological Survey (USGS) Georgia Water Science Center (GAWSC) maintains a long-term hydrologic monitoring network of more than 317 real-time streamgages, more than 180 groundwater wells of which 31 are real-time, and 10 lake-level monitoring stations.
Andrew E. Knaak   +2 more
openaire   +1 more source

The Role of Certifications in Improving Household Food Security Among Peruvian Farmers

open access: yesAgribusiness, EarlyView.
ABSTRACT Achieving global food security requires sustainable transformations in agri‐food systems. Voluntary Sustainability Standards (VSS) such as Organic and Fairtrade aim to internalize certain social and environmental costs while promoting more equitable value distribution, improved market access, and sustainable production practices.
Lisa‐Marie Schulte, Awudu Abdulai
wiley   +1 more source

Large reorganizations in butterfly communities during an extreme weather event [PDF]

open access: yes, 2016
Drought events are projected to increase in frequency and magnitude, which may alter the composition of ecological communities. Using a functional community metric that describes abundance, life history traits and conservation status, based upon Grime’s ...
Bates   +74 more
core   +2 more sources

Digital Agriculture: Past, Present, and Future

open access: yesAdvanced Intelligent Discovery, EarlyView.
Digital agriculture integrates Internet of Things, artificial intelligence, and blockchain to enhance efficiency and sustainability in farming. This review outlines its evolution, current applications, and future directions, highlighting both technological advances and key challenges for global implementation.
Xiaoding Wang   +3 more
wiley   +1 more source

Feeding habits of otters living on three moors in the Pannonian ecoregion (Hungary) [PDF]

open access: yes, 2006
Diet composition and feeding habits of Eurasian otters (Lutra lutra) living on three moors (Balata, Nagyberek and Feherviz) in Hungary were studied over two years using spraint analysis (n = 199, 503 and 3 15 samples from the three moors, respectively ...
Lanszki, József   +1 more
core  

Rangewide responses of Mimulus cardinalis to an extreme heat event

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Extreme events are an understudied aspect of ongoing anthropogenic climate change that could play a disproportionate role in the threat that rapid environmental shifts pose to natural populations. Methods We exposed plants originating from seeds that were harvested before (ancestors) and after (descendants) multiple extreme heat events
Lucas J. Albano   +6 more
wiley   +1 more source

Increasing impacts of extreme droughts on vegetation productivity under climate change [PDF]

open access: yes, 2019
Terrestrial gross primary production (GPP) is the basis of vegetation growth and food production globally1 and plays a critical role in regulating atmospheric CO2 through its impact on ecosystem carbon balance.
Christoffersen, Bradley O   +7 more
core   +3 more sources

Phylogenomics, ecomorphological evolution, and historical biogeography in Deuterocohnia (Bromeliaceae: Pitcairnioideae)

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Bing Li   +5 more
wiley   +1 more source

High N, dry: Experimental nitrogen deposition exacerbates native shrub loss and nonnative plant invasion during extreme drought. [PDF]

open access: yes, 2017
Hotter, longer, and more frequent global change-type drought events may profoundly impact terrestrial ecosystems by triggering widespread vegetation mortality.
Allen E. B.   +6 more
core   +1 more source

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