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Categories: Ecology: Animals, Geoscience: Severe Weather

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Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

Climate network analysis helps pinpoint regions at higher risk of extreme weather      (via sciencedaily.com)     Original source 

Climate change and the rapid increase in frequency of extreme weather events around the globe reinforces the reality that these events are interconnected. Researchers now describe a climate network analysis method to explore the intensity, distribution, and evolution of this interlinked climate behavior, or teleconnections. The analysis combines the directions and distribution patterns of teleconnections to evaluate their intensity and to identify sensitive regions using global daily surface air temperature data. The method relies on advanced data processing and mathematical algorithms to find meaningful insights.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature
Published

Genomic analysis in snakes shows link between neutral, functional genetic diversity      (via sciencedaily.com)     Original source 

In the world of threatened and endangered species conservation, the genomic revolution has raised some complicated questions: How can scientists justify assessing species genetic diversity without consulting entire genomes now that they can be sequenced? But then again, how can scientists justify the time and expense of genome sequencing when age-old measures of neutral genetic diversity are much cheaper and easier to obtain? A new study suggests making a transition from 'old school' genetics to 'new school' genomics for species conservation purposes probably isn't necessary in all cases.

Geoscience: Geography Geoscience: Severe Weather
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Rising seas will tighten vise on Miami even for people who are not flooded, says study      (via sciencedaily.com)     Original source 

A new study that examines both the physical and socioeconomic effects of sea-level rise on Florida's Miami-Dade County area finds that in coming decades, four out of five residents may face disruption or displacement, whether they live in flood zones or not. As inundation spreads, the effects will be felt predominantly by lower-income people as habitable areas shrink and housing prices rise, says the study. Only a small number of affluent residents will be able relocate from low-lying or waterfront properties, while many others without sufficient means may be trapped there, it says.

Geoscience: Geography Geoscience: Severe Weather
Published

Management zone maps of little use to corn growers      (via sciencedaily.com)     Original source 

A multiyear analysis tested whether management zone maps based on soil conditions, topography or other landscape features can reliably predict which parts of a cornfield will respond best to higher rates of seeding or nitrogen application. The study found that -- contrary to common assumptions -- crop-plot responses to the same inputs vary significantly from year to year. The most unpredictable factor -- the weather -- seemed to have the biggest impact on how the crops responded to these inputs.

Environmental: General Geoscience: Earth Science Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
Published

How weather phenomena affect ocean circulation      (via sciencedaily.com)     Original source 

A new study has investigated how future changes in weather patterns could affect the tropical Pacific Ocean and its ecosystems. The research, based on complex computer models, has shown that these changes will have far-reaching consequences for ocean circulation. The authors stress the need to take this more into account in future climate models. 

Ecology: Animals Ecology: Endangered Species Geoscience: Environmental Issues
Published

Flagship individual animals can boost conservation      (via sciencedaily.com)     Original source 

'Flagship' individual animals like Cecil the lion or Freya the walrus can boost conservation, new research suggests.

Biology: Cell Biology Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Experts warn of risk of civil unrest in UK due to food shortages      (via sciencedaily.com)     Original source 

Food shortages caused by extreme weather could lead to civil unrest in the UK, according to a new study which has surveyed some of the country’s leading food experts. 

Environmental: Ecosystems Environmental: Water Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Rivers may not recover from drought for years      (via sciencedaily.com)     Original source 

Lack of rainfall is not the only measure of drought. New research shows that despite a series of storms, the impact of drought can persist in streams and rivers for up to 3.5 years.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
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Killer whales' diet more important than location for pollutant exposure      (via sciencedaily.com)     Original source 

Both elegant and fierce, killer whales are some of the oceans' top predators, but even they can be exposed to environmental pollution. Now, in the largest study to date on North Atlantic killer whales, researchers report the levels of legacy and emerging pollutants in 162 individuals' blubber. The animals' diet, rather than location, greatly impacted contaminant levels and potential health risks -- information that's helpful to conservation efforts.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Warm summers and wet winters yield better wine vintages      (via sciencedaily.com)     Original source 

Wine quality is notorious for varying from year to year, but what makes for a 'good year?' Researchers show that weather plays an important role in determining wine quality. By analyzing 50 years’ worth of wine critic scores from the Bordeaux wine region in relation to that year’s weather, the researchers showed that higher quality wine is made in years with warmer temperatures, higher winter rainfall, and earlier, shorter growing seasons—conditions that climate change is predicted to make more frequent.

Chemistry: Thermodynamics Geoscience: Severe Weather
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Experiencing record-breaking heat days affects perception of weather trends      (via sciencedaily.com)     Original source 

Research finds that experiencing days in which the temperature exceeds previous highs for that time of year affects people’s perception of weather trends.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Zoology Ecology: Animals Ecology: Nature
Published

Death is only the beginning: Birds disperse eaten insects' eggs      (via sciencedaily.com)     Original source 

Relationship patterns among flightless stick insects suggest that birds disperse the eggs after eating gravid females. Lab experiments previously suggested the possibility, but a new genetic analysis of natural populations in Japan now supports the idea.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather Paleontology: Climate Paleontology: General
Published

Paleoclimatologists use ancient sediment to explore future climate in Africa      (via sciencedaily.com)     Original source 

With global warming apparently here to stay, a team of paleoclimatologists are studying an ancient source to determine future rainfall and drought patterns: fossilized plants that lived on Earth millions of years ago.

Biology: Biochemistry Ecology: Animals Ecology: Nature
Published

Wild pig populations in U.S. can be managed      (via sciencedaily.com)     Original source 

Recent conservation efforts have proven effective at controlling wild pig populations in the Southeastern United States, according to new research. Within 24 months of the start of control efforts in the study area located around the Savannah River Site in Aiken, South Carolina, researchers found a reduction of about 70% in relative abundance of pigs and a corresponding decline in environmental rooting damage of about 99%.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geomagnetic Storms Geoscience: Severe Weather Paleontology: Fossils
Published

Researchers identify largest ever solar storm in ancient 14,300-year-old tree rings      (via sciencedaily.com)     Original source 

An international team of scientists have discovered a huge spike in radiocarbon levels 14,300 years ago by analyzing ancient tree-rings found in the French Alps. The radiocarbon spike was caused by a massive solar storm, the biggest ever identified.  A similar solar storm today would be catastrophic for modern technological society – potentially wiping out telecommunications and satellite systems, causing massive electricity grid blackouts, and costing us billions. The academics are warning of the importance of understanding such storms to protect our global communications and energy infrastructure for the future.