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Biology: Biochemistry Biology: Evolutionary Biology: General Ecology: Invasive Species Ecology: Nature Environmental: Biodiversity
Published

Bottlenecks and beehives: How an invasive bee colony defied genetic expectations      (via sciencedaily.com)     Original source 

An invasive Asian honeybee colony in northern Australia has defied expectations, displaying emergent genetic variation in a short period of time. While bad news for biosecurity agencies, it could be a sign that species under pressure from climate change can be resilient.

Biology: Evolutionary Biology: General Biology: Zoology Ecology: Animals Ecology: Nature
Published

The veil varies more than the threat: Predator selection on variability in camouflage and warning signals      (via sciencedaily.com)     Original source 

Researchers leveraged open-access digital collections to validate an age-old hypothesis in evolutionary ecology. The classic hypothesis proposes that predators select for a great variety of camouflage and a limited variety of warning signals, but the idea has never been tested on natural prey.

Ecology: Nature Environmental: General Geoscience: Environmental Issues
Published

African great apes predicted to see frequent extreme climate events in the next 30 years      (via sciencedaily.com)     Original source 

African apes are already being exposed to climate change impacts, and will experience extreme events such as wildfires, heatwaves and flooding more frequently in the next 30 years, according to a new study.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Nature Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Climate change shrinking fish      (via sciencedaily.com)     Original source 

Fish weight in the western North Pacific Ocean dipped in the 2010s due to warmer water limiting food supplies, according to a new study. Researchers analyzed the individual weight and overall biomass of 13 species of fish. In the 1980s and 2010s, the fish were lighter. They attributed the first period of weight loss to greater numbers of Japanese sardine, which increased competition with other species for food. During the 2010s, while the number of Japanese sardine and chub mackerel moderately increased, the effect of climate change warming the ocean appears to have resulted in more competition for food, as cooler, nutrient-dense water could not easily rise to the surface. These results have implications for fisheries and policymakers trying to manage ocean resources under future climate change scenarios.

Biology: Biochemistry Biology: General Ecology: Endangered Species Ecology: Extinction Ecology: Nature
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Counting rays: Aerial surveys reveal ample populations in Southeast Florida      (via sciencedaily.com)     Original source 

A unique long-term study quantified the abundance of whitespotted eagle and giant manta rays in Southeast Florida. Researchers conducted 120 survey flights between 2014 and 2021 from Miami north to the Jupiter Inlet. One or both species were seen on nearly every flight and both populations appear to be stable in the region. The giant manta rays were more abundant in the south and the whitespotted eagle rays were found all along the coast. Neither species seems to be deterred by the greater human population density in Fort Lauderdale/Miami.

Biology: Biochemistry Biology: Marine Biology: Microbiology Ecology: Extinction Ecology: Nature Ecology: Sea Life
Published

'Janitors' of the Sea: Overharvested sea cucumbers play crucial role in protecting coral      (via sciencedaily.com)     Original source 

Researchers discovered that sea cucumbers -- sediment-eating organisms that function like autonomous vacuum cleaners of the ocean floor -- play an enormous role in protecting coral from disease.

Biology: General Ecology: Nature
Published

Temperature, humidity may drive future transmission of parasitic worm infections      (via sciencedaily.com)     Original source 

Studies on climate and infectious disease typically focus on temperature's role on disease transmission. However, an international team found that both temperature and humidity contribute to future trends in the transmission of parasitic worm infections.

Ecology: Nature Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
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Reforestation schemes are not enough to recover the carbon created by harvesting wood      (via sciencedaily.com)     Original source 

Forests have a critical role to play in capturing and storing carbon from the Earth's atmosphere -- but some models exaggerate their carbon removal potential by almost three-fold, according to a leading professor of forest economics.

Biology: Zoology Ecology: Animals Ecology: Invasive Species Ecology: Nature Environmental: Ecosystems Geoscience: Geography
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Birds and bee lessons as Pacific field trips also solve 'Michener's mystery'      (via sciencedaily.com)     Original source 

Eight new Pacific bee species and new insights into Fijian bird behaviour on Viti Levu Island have been described in new scientific studies. The research highlights the potential for species discovery, ecological and conservation knowledge and cultural engagement from Asia-Pacific research collaborations.

Biology: General Biology: Microbiology Ecology: Nature Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
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Global warming increases the diversity of active soil bacteria      (via sciencedaily.com)     Original source 

Warmer soils harbor a greater diversity of active microbes, according to a new study. The study represents a significant shift in our understanding of how microbial activity in the soil influences the global carbon cycle and possible feedback mechanisms on the climate. Until now, scientists have assumed that higher soil temperatures accelerate the growth of microbes, thus increasing the release of carbon into the atmosphere. However, this increased release of carbon is actually caused by the activation of previously dormant bacteria.

Biology: Biochemistry Biology: Botany Biology: General Biology: Genetics Biology: Microbiology Ecology: Endangered Species Ecology: Nature
Published

Altering the circadian clock adapts barley to short growing seasons      (via sciencedaily.com)     Original source 

To ensure that plants flower at the right time of year, they possess an internal clock, which enables them to measure the amount of daylight during a day. Biologists now describe that the mutation of a specific gene makes the flowering time of barley almost entirely independent of day length. This mutation can be useful for breeding varieties adapted to altered climatic conditions with relatively mild winters and hot, dry summers.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Marine Biology: Zoology Ecology: Nature
Published

Snakes do it faster, better: How a group of scaly, legless lizards hit the evolutionary jackpot      (via sciencedaily.com)     Original source 

More than 100 million years ago, the ancestors of the first snakes were small lizards that lived alongside other small, nondescript lizards in the shadow of the dinosaurs.

Ecology: Nature Environmental: Ecosystems Environmental: General Environmental: Wildfires
Published

Cooler, wetter parts of Pacific Northwest likely to see more fires, new simulations predict      (via sciencedaily.com)     Original source 

Forests in the coolest, wettest parts of the western Pacific Northwest are likely to see the biggest increases in burn probability, fire size and number of blazes as the climate continues to get warmer and drier.

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

Carbon emissions from the destruction of mangrove forests predicted to increase by 50,000% by the end of the century      (via sciencedaily.com)     Original source 

The annual rate of carbon emissions due to the degradation of carbon stocks in mangrove forests is predicted to rise by nearly 50,000% by the end of the century, according to a new study. Mangroves in regions such as southern India, southeastern China, Singapore and eastern Australia are particularly affected.

Biology: Biochemistry Biology: General Ecology: Animals Ecology: Invasive Species Ecology: Nature Ecology: Research
Published

Mice surprise: Researchers discover new native species      (via sciencedaily.com)     Original source 

Australia can lay claim to two new species of native rodent thanks to a new study. The aptly named delicate mouse was previously thought to be a single species spanning a massive stretch of the country from the Pilbara in Western Australia, across parts of the Northern Territory and through Queensland down to the New South Wales border. We now know there are three distinct species.