Jul 31, 2024 · Pregnant polar bears enter maternity dens in October/November, give birth to cubs in December/January, and exit dens in March/April. Historically, most polar bears from the …

In the animal kingdom, a maternity den is a lair where a mother gives birth and nurtures her young when they are in a vulnerable life stage. While dens are typically subterranean, they may also …

The data provided here are maternal den locations, where “maternal den” represents a structure that was used by a pregnant polar bear to give birth to young and, should parturition be …

Mar 7, 2025 · They found that camera traps provided fine-scale insights into maternal den behavior, while satellite collars are accurate and useful for monitoring bears over longer …

Jan 27, 2020 · This report presents data on the approximate locations and methods of discovery of 530 polar bear (Ursus maritimus) maternal dens observed in the Beaufort and Chukchi …

Feb 6, 2015 · While denning, polar bears are unable to simply move away from a disturbance without substantial risk to newborn cubs. A 2020 study by Polar Bears International …

Polar bears (Ursus maritimus) give birth during mid-winter in dens of ice and snow. Denning polar bears subjected to human disturbances may abandon dens before their altricial young can …

Magoun and Copeland (1998) described two types of reproductive dens, natal dens where young are born and maternal dens where the mother may move the kits if conditions are no longer …

BJ Kirschhoffer and Joanna Sulich set up a maternal den cam. We were also able to successfully fly a total of six ultra-wideband radar surveys at three den sites—testing whether they can …

Aug 25, 2022 · Maternal denning is arguably the most vulnerable aspect of polar bear life history because the adult female with her neonates cannot simply move to a new location if they are …