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ScienceDaily: Earth & Climate News |
| Tug of sun, moon could be driving plate motions on ‘imbalanced’ Earth Posted: 21 Jan 2022 01:55 PM PST A study proposes that imbalanced forces and torques in the Earth-moon-sun system drive circulation of the whole mantle. The new analysis provides an alternative to the hypothesis that the movement of tectonic plates is related to convection currents in the Earth's mantle. |
| River flows linked to the ups and downs of imperiled Chinook salmon population Posted: 21 Jan 2022 11:54 AM PST A study has discovered that sufficient water flows during summer can be critical to a Chinook salmon population in the interior of British Columbia. |
| Mange outbreak decimated a wild vicuna population in Argentina Posted: 21 Jan 2022 11:54 AM PST Mange has decimated the population of wild vicunas and guanacos in an Argentinian national park that was created to conserve them, according to a new study. The findings suggest domestic llamas introduced to the site may have been the source of the outbreak. Cascading consequences for local predator and scavenger species are expected. |
| Balanced diet can mitigate negative impact of pests for bumblebees Posted: 21 Jan 2022 09:48 AM PST Bumblebees are important pollinators because they pollinate many different plant species and are extremely resilient. They can still manage to fly at temperatures that are too cold for other pollinators. Like many other insects, they are in sharp decline. This makes it even more important to find out what bumblebees need to reproduce successfully. A team has shown that a diverse landscape and a diverse pollen diet, which the bumblebees collect as a protein source to nourish their offspring, play a significant role in this. A more diverse diet could even mitigate negative effects of infestation with parasitic wax moth larvae. |
| Scientists build 'valves' in DNA to shape biological information flows Posted: 21 Jan 2022 06:43 AM PST Scientists have developed new biological parts that are able to shape the flow of cellular processes along DNA. |
| Shifting ocean closures best way to protect animals from accidental catch Posted: 17 Jan 2022 01:55 PM PST A new analysis looks at how effective fishing closures are at reducing accidental catch. Researchers found that permanent marine protected areas are a relatively inefficient way to protect marine biodiversity that is accidentally caught in fisheries. Dynamic ocean management -- changing the pattern of closures as accidental catch hotspots shift -- is much more effective. |
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