Science, Space and Technology News 2023
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Photo taken on September 12, 2015, showing fall colors on the tundra at the north end of Frazer Lake in Kodiak National Wildlife Refuge. Fall colors on the tundra are on display in the photo , taken in September 2015 at the north end of Frazer Lake in Kodiak National Wildlife Refuge. In the short growing season of this harsh environment,as much time as possible on growth and reproduction while still allowing enough time to build up frost hardiness. Sunlight levels, snow conditions, and temperature are some of the factors thought to affect when tundra plants lose chlorophyll and reabsorb nutrients each year.
Across the Shelikof Strait, bears preparing for hibernation in Katmai National Park spent time in the spotlight during the annual Fat Bear Week competition. roam the mountains, forests, and tundra on the islands of the Kodiak Archipelago. Kodiak brown bears can weigh twice as much as interior brown bears, better known as grizzlies. Females can reach 700 pounds , and males can top out at 1,400 pounds .
On Kodiak, the bears have access to a bounty of food sources, foraging among the salmonberry and elderberry patches and fishing in the streams. The Karluk River, for example, boasts one of the most famousEarth Observatory image by Wanmei Liang, using Landsat data from the U.S. Geological Survey. Photo by Lisa Hupp, courtesy of the Alaska Region U.S. Fish & Wildlife Service.SciTechDaily: Home of the best science and technology news since 1998.
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