One of the reasons many uninformed people site as a reason for the bear research being done by Dr. Lynn Rogers and his staff at the Wildlife Research Institute in Ely,MN, is because bear mortality rates are not being consdered. These people believe that it should be alright to hunt and kill one of the bears, after years of unbroken research on many of them, because mortality rates are part of a bears life cycle.
First, let me say that there are many different types of animal resaerch, and many different ways of doing that research. What we knew about animal biology and behavior in the past, and what we want to know know, - has changed. And research techniques hve changed, and so has the technology to do wildlife research.
To respond to the "mortality" claim, let me ask a few questions:
When I was doing whitetail deer scraping activity research for 10 years, what did the mortality rates of the deer have to do with deer scrape activity? When I was researching how goose feeding strategies and feeding patterns changed in response to changes in the weather, what did goose mortality rates have to do with goose feeding habits? When I was doing turkey gobbling activity research in relation to turkey breeding phase changes, what did turkey mortality rates have to do with turkey gobbling activity? When I was doing elk communication research, what did elk mortality rates have to do with how elk communicate with each other?
Now let me ask this question: What do bear mortality rates have to do with the denning behvaior of pregnant sow bears, or to sow and cub behavior during the cub's first two years of life, or the home range size of different sexes and ages of bears, and individual to individual interactions of an extended clan of bears to each other, and to unrelated bears?
The answerto all of thequestions above - is nothing. Mortality rates do not have to be considered in every type of animal research project. And mortality rates do not have to be considered in Dr. Rogers bear research.
So - the contention that Dr.Roger's research is invalid, because bear mortality rates are not included or considered in it - is false.
One reason people cite for the bar study being unethical, is because camears are being placed in the dens of the sows in the winter, so that the researchers, and interested individuals worldwide, can observe the behavior of a sow and her cub throughout part of the gestation period, and the first few months of the newborn cub's life.