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NASA’s Investigating the Impact of Arctic Wildfires on Earth. Here’s Why

Originally posted on The Extinction Chronicles:
By Passant Rabie 10 hours ago Science & Astronomy  The wildfires are also harmful to ecosystems and human health, and they’re becoming more frequent. Using a combination of field and laboratory work, as well as satellite and airborne observations, NASA is launching a study of the effects of Arctic wildfires in Alaska on the surrounding habitat and people’s health, as well as how the increased frequency of these events affects climate forecasting. Wildfires in the Arctic are usually started by lightning strikes and left to burn unless they get too close to infrastructure or people, according to a statement by NASA. However, as a result, the fires tend to spread out and consume large areas of vegetation. “Fires are a natural part of the ecosystem, but what we’re seeing is an accelerated fire cycle: we are getting more frequent and severe fires and larger burned areas,” Liz Hoy, a boreal fire researcher at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, said in the statement. Related: How NASA Is Using Lasers to Study Climate Change (Video) These record-setting wildfires raged across the Northwest Territories of Canada in 2014. (Image credit: Peter Griffith/NASA) Hoy also works as part of NASA’s Arctic-Boreal Vulnerability Experiment (ABoVE), a field campaign that examines the resilience of Arctic and boreal ecosystems and societies in response to changes in the environment. Wildfires in the Arctic contribute to carbon emissions created by the burning of a thick, carbon-rich layer…

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Point Reyes

Originally posted on Jet Eliot:
Point Reyes, Tomales Point, Pacific Ocean side ? Tule elks (male), Point Reyes ? Pt. Reyes from Tomales Point Trail. McClure’s Beach. ? About a two-hour drive north of San Francisco is an expansive park called Point Reyes. Geologically it is a large cape that extends off the Pacific coast. Technically it is Point Reyes…

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Painted turtles, male, female, new research

Originally posted on Dear Kitty. Some blog: This 6 May 2018 video from the USA says about itself: In this video I will show you these cute amazing baby painted turtles. These baby turtles are only 1 day old and are so tiny, some of these baby turtles are the size of quarters and smaller. I saved the baby painted turtles from birds and at the end of the video I will let these turtles go. From Iowa State University in the USA: How scientists view sex determination in painted turtle populations August 6, 2019 Summary: A study that looks at how temperature influences the development of painted turtles may lead biologists to rethink the theoretical frameworks they use when analyzing the topic. The study found wide variation within local populations, suggesting temperature sensitivity of embryonic development can vary significantly from one turtle nest to another within a single population. A new study from Iowa State University scientists could flip the established framework for how scientists believe geography influences sex determination in painted turtles on its shell. The study, published Tuesday in the academic journal Functional Ecology, analyzed decades of data concerning painted turtles, a species widely distributed across North America that undergoes temperature-dependent sex determination. That means the temperatures experienced by an incubating painted turtle egg influence whether an embryo develops the physical characteristics biologists describe as male or female. Warmer temperatures tend to produce females, and cooler…

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