Sentences with phrase «expenditure of polar bears»

For the first time, researchers have measured the energy expenditure of polar bears in the wild during the summer months.

Not exact matches

When polar bears» feeding opportunities decrease during the summer ice melt, the animals can reduce their energy expenditure a little, but not enough to make up for the food shortages, a study in the 17 July issue of Science shows.

«Now that we have a better understanding of polar bear energy expenditures during summer because of this study, we are analyzing additional data we collected which relates to their energy storage,» Whiteman said.

To measure polar bears» energy expenditure during the summer months, Whiteman and his colleagues used satellite collars to track the movement of individual bears, both on shore and on ice.

The predominance of local vegetation in collected scat suggests little movement among habitat types between feeding sessions, indicating that the polar bears are keeping energy expenditure down.