Showing 20 articles starting at article 321

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Research, Geoscience: Severe Weather

Return to the site home page

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

Climate change isn't producing expected increase in atmospheric moisture over dry regions      (via sciencedaily.com)     Original source 

The warming climate has not lead to an expected increase in atmospheric moisture over arid and semi-arid regions of the world. The finding, which has surprised scientists, indicates that some regions may be even more vulnerable to future wildfires and extreme heat than projected.

Biology: Botany Ecology: General Ecology: Nature Ecology: Research Ecology: Trees Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
Published

Climate change threatens global forest carbon sequestration, study finds      (via sciencedaily.com)     Original source 

Climate change is causing Western U.S. forests to be less effective carbon sinks, even as it boosts the productivity of forests in the Eastern U.S., according to new research.

Biology: Biochemistry Biology: Evolutionary Biology: Marine Biology: Zoology Ecology: Research Ecology: Sea Life Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

Pacific kelp forests are far older that we thought      (via sciencedaily.com)     Original source 

Fossils of kelp along the Pacific Coast are rare. Until now, the oldest fossil dated from 14 million years ago, leading to the view that today's denizens of the kelp forest -- marine mammals, urchins, sea birds -- coevolved with kelp. A recent amateur discovery pushes back the origin of kelp to 32 million years ago, long before these creatures appeared. A new analysis suggests the first kelp grazers were extinct, hippo-like animals called desmostylians.

Geoscience: Severe Weather Offbeat: Earth and Climate Offbeat: General
Published

Pain-based weather forecasts could influence actions      (via sciencedaily.com)     Original source 

For individuals who experience chronic pain, weather can be a significant factor in their day-to-day plans. In a recent study, about 70 percent of respondents said they would alter their behavior based on weather-based pain forecasts.

Biology: Biochemistry Biology: Botany Biology: General Ecology: Endangered Species Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems
Published

Human activity facilitates invasive plants' colonization in Mediterranean ecosystems      (via sciencedaily.com)     Original source 

Some invasive plants can form persistent banks of seeds that remain under the soil for years, and this makes their eradication practically impossible. Over time, this invisible population of large quantities of living, buried plants -- in seed form -- will reoccupy ecosystems and displace the typical flora of the natural environment.

Biology: Biochemistry Biology: General Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Thermal vision shows endangered numbats feel the heat of warming climate      (via sciencedaily.com)     Original source 

Research using thermal imaging of numbats in Western Australia has found that during hot weather the endangered animals are limited to as little as ten minutes of activity in the sun before they overheat to a body temperature of greater than 40 C.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Environmental: Ecosystems
Published

Red deer populations in Europe: More influenced by humans than by wolves and other predators      (via sciencedaily.com)     Original source 

A new study shows that human hunting and land use have a decisive influence on red deer density in Europe. Red deer density is only reduced when wolves, lynx and bears co-occur at the same site.

Biology: Biochemistry Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: Water Geoscience: Environmental Issues Geoscience: Severe Weather
Published

'Carbon vault' peat suffers greatly from drought      (via sciencedaily.com)     Original source 

Peatlands are affected more by drought than expected. This is concerning, as these ecosystems are an important ally in the fight against climate change. Following long periods of drought, peat is able to absorb little to no extra carbon (CO2). Increasing biodiversity also does little to make peat more drought-resilient.

Biology: Biochemistry Biology: Botany Biology: General Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Geography
Published

Scientists name the most common tropical tree species      (via sciencedaily.com)     Original source 

Researchers have found almost identical patterns of tree diversity across the world's tropical forests. The study of over one million trees across 1,568 locations found that just 2.2% of tree species make up 50% of the total number of trees in tropical forests across Africa, the Amazon, and Southeast Asia. Each continent consists of the same proportion of a few common species and many rare species.

Biology: Marine Ecology: Extinction Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems
Published

In hot water: Coral resilience in the face of climate change      (via sciencedaily.com)     Original source 

Researchers have been studying the effects of climate change on coral reefs. Monitoring two coral species off the coast of Hawaii, one team found that local adaptations in response to near-severe heat stress allowed certain populations to endure such events.

Biology: Biochemistry Ecology: General Ecology: Nature Ecology: Research Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

Global study of extreme drought impacts on grasslands and shrublands      (via sciencedaily.com)     Original source 

A global study shows that the effects of extreme drought -- which is expected to increase in frequency with climate change -- has been greatly underestimated for grasslands and shrublands. The findings quantify the impact of extreme short-term drought on grassland and shrubland ecosystems across six continents with a level of detail that was not previously possible. It is the first time an experiment this extensive has been undertaken to generate a baseline understanding of the potential losses of plant productivity in these vital ecosystems.

Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Nature Ecology: Research Energy: Alternative Fuels Environmental: Ecosystems Environmental: General
Published

Conflict in full swing: Forest bats avoid large areas around fast-moving wind turbines      (via sciencedaily.com)     Original source 

Not only do many bats die at wind turbines, the turbines also displace some species from their habitats over large areas. When the turbines are in operation at relatively high wind speeds, the activity of bat species that hunt in structurally dense habitats such as forests drops by almost 80 per cent within a radius of 80 to 450 meters around the turbine.

Biology: General Biology: Marine Biology: Zoology Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General
Published

The choreography connecting kelp forests to the beach      (via sciencedaily.com)     Original source 

A new study uncovers a symphony of synchrony between the kelp forest and beach, with broader implications for the beach food web as the climate changes.

Chemistry: Biochemistry Geoscience: Oceanography Geoscience: Severe Weather
Published

Path-following performance of autonomous ships      (via sciencedaily.com)     Original source 

With recent requirements for reducing greenhouse gas emissions of autonomous ships, an emerging body of research is focused on assessing the path-following performance of maritime autonomous surface ships (MASS) at low speeds under adverse weather conditions. To combat the poor accuracy of traditional methods, in a new study, researchers investigated the path-following performance of MASS using a free-running computational fluid dynamics model. Their findings can help ensure safer autonomous navigation with reduced propulsion power.

Biology: Cell Biology Biology: Microbiology Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Microbial awakening restructures high-latitude food webs as permafrost thaws      (via sciencedaily.com)     Original source 

Wildlife biologists used a novel technique to trace the movement of carbon through Arctic and boreal forest food webs and found that climate warming resulted in a shift from plant-based food webs to fungal-based food webs for several high-latitude species, with potential indirect effects on nutrient cycling and ecosystem function.

Chemistry: General Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

Unraveling the mysteries of fog in complex terrain      (via sciencedaily.com)     Original source 

While fog presents a major hazard to transportation safety, meteorologists have yet to figure out how to forecast it with the precision they have achieved for precipitation, wind and other stormy events. This is because the physical processes resulting in fog formation are extremely complex, Now researchers report their findings from an intensive study centered on a northern Utah basin and conceived to investigate the life cycle of cold fog in mountain valleys.

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

Finding new ways to adapt to a growing weather threat      (via sciencedaily.com)     Original source 

Research reveals a steady increase in the number of people at risk from tropical cyclones and the number of days per year these potentially catastrophic storms threaten health and livelihoods. The findings could help relief agencies, development banks, and other organizations plan more effective strategies for mitigating extreme weather impacts.