3/16/2024 0 Comments Wolf spiders groundedLouis, studies not only how a warming climate affects predator-prey relations, but also how changes in those relationships influence the broader ecosystem. Koltz, an Arctic ecologist at Washington University in St. The filmmakers created the content presented, and the opinions expressed are their own, not those of National Geographic Partners. The Short Film Showcase spotlights exceptional short videos created by filmmakers from around the web and selected by National Geographic editors. In Keeper of the Flame, Derrick Pottle shares the meaning behind the Inuit way of life and why he continues the traditions of his culture. In Northeastern Canada, a traditional Inuit hunter, carver, and guide is watching the world change before his eyes. Decomposition releases greenhouse gases like carbon dioxide and methane that further accelerate climate change. The Arctic's heat-up is particularly worrisome because as the region warms, permafrost-a frozen layer of soil and dead things-begins to melt, allowing fungi and bacteria to decompose it. Human activity, especially the release of heat-trapping greenhouse gases, is warming the planet-and the Arctic is getting hotter twice as fast as the rest of Earth. Her study reveals that at increased temperatures and population densities, arctic wolf spiders change their eating habits, starting an ecosystem-wide cascade that could change how quickly melting permafrost decomposes. The eye-popping calculation, published today in PNAS by National Geographic explorer Amanda Koltz, could shape our understanding of how the Arctic will respond to future climate change. The Arctic tundra is teeming with predators, just not the ones you might expect: By biomass, arctic wolf spiders outweigh arctic wolves by at least 80-to-1.
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