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Daisy Gilardini

@natgeotravel @natgeowild Swiss Nikon Ambassador CanGeo photographer in residence Ambassador for Greenpeace, Nikon, Gitzo, Lowepro, SanDisk, WD, Eizo

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hace 1 día

Photo and video by @daisygilardini / Polar Bear International in partnership with Brigham Young University are studying a promising new den-finding method, Synthetic Aperture Radar, or SAR, that could greatly improve the ability to locate dens under the snow, helping to identify and protect denning areas to ensure the safety of moms and cubs. This small device acts like a large antenna and it is operated from an aircraft. According to BJ Kirschhoffer, PBI director of field operations “SAR technology doesn’t have the limitations that FLIR does. You can fly at almost any height you want, at any time, and in any weather. Also, the FLIR only covers a narrow range: It’s like looking through a soda straw, whereas SAR covers a wide sweep. SAR has the potential to be more accurate, more flexible, and much faster”. Follow and support @polarbearsinternational to know more about bears and help them fund a project to develop SAR technology to find and map den locations in order to protect them. Join us to protect the polar bear's future—and our own. Canadian donors https://polarbearsinternational.salsalabs.org/ipbd2021_ca/index.html Non Canadian donors https://polarbearsinternational.salsalabs.org/ipbd2021/index.html To read more about SAR https://polarbearsinternational.org/news/article-polar-bears-international/finding-dens-under-the-snow/ Polar bears need to stay dry and clean, because wet, matted fur is a poor insulator. As soon as mama bear exited the den, she started to clean herself, by rolling around in the snow. Not long afterwards, two adorable cubs emerged from the den. Wapusk National Park is the world’s southernmost denning area for polar bears. Female bears usually start to dig maternity dens in the fall. Expecting mothers dig into the raised peat soil found in palsa formations on the leeward side of snowdrifts that build up over time along riverbanks and lake shores. The resulting snow/earth cave needs to be large enough that she can turn around in, but small enough to keep her and her newborn cubs warm. #PolarBearDay #SaveOurSeaIce #ProtectMomsAndCubs #TalkAboutIt #EnergyShift #ClimateHope #polarbear #churchill #wapusknationalpark #conservation

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hace 1 día

Photo and video by @daisygilardini / In celebration of International Polar Bear Day, let’s talk science. Right now, polar bear moms and their newborn cubs are snuggled together in snow dens across the Arctic and are getting ready to emerge from the maternity dens. The denning period is the most vulnerable time in a polar bear’s life. In a warming Arctic, where gas development and other human activities expand in polar bear territories, it has never been so important to locate and protect these extremely sensitive areas. A recent study led by Dr. Tom S. Smith of Brigham Young University (27.02.2020) reveals that aerial forward-looking infrared (FLIR) surveys conducted by the oil-industry to locate maternal dens fails 55% of the time. FLIR can be an incredibly effective tool for research but weather conditions are critical for its success. Limitation on this technology suggests that denning mothers and cubs may be increasingly in harm’s way. Follow and support @polarbearsinternational to know more about bears and help them fund a project to develop a new tool to find and map den locations in order to protect them. More on this project in my next posts. Join us to protect the polar bear's future—and our own. Canadian donors https://polarbearsinternational.salsalabs.org/ipbd2021_ca/index.html Non Canadian donors https://polarbearsinternational.salsalabs.org/ipbd2021/index.html #PolarBearDay #SaveOurSeaIce #ProtectMomsAndCubs #TalkAboutIt #EnergyShift #ClimateHope #polarbear #churchill #wapusknationalpark #conservation

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hace 3 días

Photo and video by @daisygilardini / In celebration of International Polar Bear Day, let’s talk science. Why is it so important to protect polar bear mothers with cubs? Polar bears’ reproductive rate is among the lowest of all mammals. Females reach maturity at the age of four- to five-years-old and usually give birth to two cubs. Mortality is high during the cubs’ first year of life and depends largely on the mother’s health. Cubs will stay with their mother for two and a half to three years. Bears can live anywhere from 20 to 30 years. That means a typical female will have five or six litters during her lifetime, of which two in three cubs will die within their first two years. With such a slow-to-reproduce animal, bad polar bear management could have dramatic consequences on their numbers. Follow and support @polarbearsinternational to know more about bears and help them fund a project to develop a new tool to find and map den locations in order to protect them. More on this project in my next posts. Join us to protect the polar bear's future—and our own. Canadian donors https://polarbearsinternational.salsalabs.org/ipbd2021_ca/index.html Non Canadian donors https://polarbearsinternational.salsalabs.org/ipbd2021/index.html #PolarBearDay #SaveOurSeaIce #ProtectMomsAndCubs #TalkAboutIt #EnergyShift #ClimateHope #polarbear #churchill #wapusknationalpark #conservation