Submitted by Anonymous on Fri, 01/07/2011 - 15:41
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Polar Bear Response to Sea Ice Loss

hi! i am doing a report and i need to make the exponential growth graph, but i can't find the birth and death rates of polar bears. can u plzzzz help

Sat, 04/22/2017 - 08:12

Anthony

Answer the question someone

Sat, 04/22/2017 - 10:00

CTWILLIAMS

Not my field but I've pulled some numbers from the scientific literature. There will be variation depending on what particular polar bear population you are looking at but, survival from birth to age 2 years is about 0.35 (35%), survival after age 2 is about 0.93 per year (93%). Females start to give birth at age 5, and produce 0.4 litters per year (they don't give birth every year) with an average litter size of 1.6 cubs.