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ScienceDaily: Earth & Climate News |
| Biodiversity: Land use – Threat to and opportunity for bumblebees Posted: 20 Aug 2021 08:11 AM PDT Bumblebees largely contribute to the pollination of crops. However, they are threatened by land use changes due to climate change. Long-term simulations have now shown that smart land management may stabilize some species. |
| Female and young walruses depend on disappearing Arctic sea ice for food sources Posted: 20 Aug 2021 08:11 AM PDT A new study shows that disappearing sea ice is a significant element of the food web supporting female walruses and their dependent young in the Arctic's Chukchi Sea. Researchers were able to trace biomarkers that are unique to algae growing within sea ice to connect marine mammals with a food source that is rapidly diminishing in the face of climate change. |
| Cloud shadows cue mini-migrations Posted: 20 Aug 2021 08:11 AM PDT A new study shows that zooplankton swim up and down repeatedly within the ocean's twilight zone due to subtle changes in daylight intensity, with implications for deep-sea ecology and the Earth's carbon cycle. |
| Hundreds of Cape Fur seals entangled in fishing lines and nets every year Posted: 20 Aug 2021 08:10 AM PDT Fishing line and nets are having a major impact on Cape fur seals, the most common marine mammal observed around the coastline of South Africa and Namibia, where they are endemic. The first results from an ongoing study, initiated in 2018, shows that a high number of affected animals are pups and juveniles, which were mainly entangled around the neck with fishing line, causing horrific injuries and resulting in a slow, painful death. |
| Evolution now accepted by majority of Americans Posted: 20 Aug 2021 08:10 AM PDT The level of public acceptance of evolution in the United States is now solidly above the halfway mark, according to a new study based on a series of national public opinion surveys conducted over the last 35 years. |
| Integrative approach by biologists increases accuracy of mosquito vector surveillance Posted: 20 Aug 2021 08:10 AM PDT A team of researchers has developed an integrative approach that increases the accuracy of mosquito surveillance and management. The two-pronged strategy boosts accuracy in sampling by including mosquito larvae, and species identification using short DNA sequences. |
| Opening the climate change forecasting toolbox Posted: 20 Aug 2021 06:34 AM PDT It is not easy to predict how animals -- from insects to fish -- are going to respond to climate change and especially extremes of temperature. This lack of understanding hinders our ability to predict the vulnerability of these animals to climate change. Scientists now make several proposal on how to improve the current, widely adopted thermal vulnerability index. |
| Researchers help track the growth of ginseng forest farming in Pennsylvania Posted: 19 Aug 2021 04:50 PM PDT There is good and bad news about ginseng collection and production in Pennsylvania, and likely much of Appalachia, according to a new study. |
| Effect of ‘eddy killing’ in oceans is no longer a matter of guesswork Posted: 19 Aug 2021 04:50 PM PDT Applying a new coarse-graining, spatial method of analysis to satellite imagery, scientists provide a direct measure of the impact of wind driven eddy-killing on the kinetic energy of ocean currents -- a continual loss of 50 gigawatts, equivalent to the detonation of a Hiroshima nuclear bomb every 20 minutes, year round. |
| Nutrient-rich human waste poised to sustain agriculture, improve economies Posted: 19 Aug 2021 04:08 PM PDT The future connection between human waste, sanitation technology and sustainable agriculture is becoming more evident. According to a civil and environmental engineering professor, countries could be moving closer to using human waste as fertilizer, closing the loop to more circular, sustainable economies. |
| More research needed into microbes that live in and on sea creatures Posted: 19 Aug 2021 11:28 AM PDT Experts discuss the growing evidence that beneficial members of microbiomes play critical roles in diverse marine ecosystems, identifying areas where there are still major knowledge gaps. |
| Recordings of the magnetic field from 9,000 years ago teach us about the magnetic field today Posted: 16 Aug 2021 01:13 PM PDT New research has uncovered findings regarding the magnetic field that prevailed in the Middle East between approximately 10,000 and 8,000 years ago. Researchers examined pottery and burnt flints from archaeological sites in Jordan, on which the magnetic field during that time period was recorded. |
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