Pollution is changing the fungi that provide mineral nutrients to tree roots, which could explain malnutrition trends in Europe’s trees.
To get nutrients from the soil, trees host fungi, known as mycorrhizal fungi, in their roots. These fungi receive carbon from the tree in exchange for essential nutrients, like nitrogen, phosphorus and potassium, which they gather from the soil.
A huge, 10-year study of 13,000 soil samples across 20 European countries has revealed that many tree fungi communities are stressed by pollution, indicating that current pollution limits set by European countries may not be strict enough, that they may need to lower the amount of nitrogen and phosphorus levels allowed for soil amendments. To read all of this article, click here.
Study shows evidence of convergence in bird and primate evolution.
Neuroscientists have identified the neural circuit that may underlay intelligence in birds, according to a new study. “An area of the brain that plays a major role in primate intelligence. . .transfers information between the two largest areas of the brain, which allows for higher-order processing and more sophisticated behavior. In humans and primates, these specific nuclei are large compared to other mammals.”
Birds have a similar structure that has similar connectivity, located in a different part of the brain, which does the same thing – circulates information between the cortex and the cerebellum.
The study determined that the structure in parrots is much larger than that of other birds, with the relevant structure two to five times larger in parrots than in other birds, which has developed independently, involving sophisticated behaviors such as use of tools and self-awareness. Read the rest of the article here.
From the Washington Post Energy and Environment Newsletter. July 6, 2018, Lindsey Bever reporting.
Hawaii just banned your favorite sunscreen to protect its coral reefs
According to the Smithsonian’s National Museum of Natural History, coral reefs are crucial to marine and human life.
In addition to protecting sea creatures, the Smithsonian said, the reefs provide food, medication and tourism jobs, among other things — at a value of $30 billion to $172 billion per year.
Hawaii’s state lawmakers passed legislation in May that would ban skin-care companies from selling and distributing sunscreens on the islands that contain two chemicals deemed damaging to coral reefs. The chemicals, oxybenzone and octinoxate, have significant harmful impacts on Hawaii’s marine environment and residing ecosystems.”
The bill was opposed by various companies and business associations and even some dermatologists, who worry that the ban may discourage people from wearing sunscreen at all. (Blah-blah – no surprise that Big Money doesn’t care about anything other than making more money.)
Read the full article here.
From NBC News, Associated Press, June 15, 2018.
Lions and tigers and bears are increasingly becoming night owls because of us, a new study says.
Scientists have long known that human activity disrupts nature. Besides becoming more vigilant and reducing time spent looking for food, many mammals may travel to remote areas or move around less to avoid contact with people. (I know how they feel.)
The latest research found even activities like hiking and camping can scare animals and drive them to become more active at night.
Researchers analyzed 76 studies involving 62 species on six continents, including lions in Tanzania, otters in Brazil, coyotes in California, wild boars in Poland and tigers in Nepal. The study suggests that animals might be “playing it safe around people.”
Read the complete article here.
From NBC News, June 7 2018, Brandon Specktor reporting.
Climate change killed the aliens, and it might kill us too!
Professor Adam Frank, astrophysicist at the U. of Rochester, NY published a new paper in May that “aims to take a 10,000-light-year view of human-caused climate change.”
Using mathematical models based on the disappearance of the lost civilization of Easter Island, Frank and his colleagues simulated how various alien civilizations might rise and fall if they were to increasingly convert their planet’s limited natural resources into energy.
The results, as you might expect, were generally pretty grim. Of four common “trajectories” for energy-intense civilizations, three ended in apocalypse. The fourth scenario — a path that involved converting the whole alien society to sustainable sources of energy — worked only when civilizations recognized the damage they were doing to the planet, and acted in the right away.
“The last scenario is the most frightening,” Frank said. “Even if you did the right thing, if you waited too long, you could still have your population collapse.”
Read the rest of this interesting “what if?” article here.
Also, on my “Spotlight On” page, a bit about our favorite summer plant, Poison Ivy.
Again, don’t forget, Volume 3 of Secret Voices from the Forest is available now on Amazon – you can get there directly via this link.
Have a great week!