Even though this provided wildlife biologists with important information, they went further (step 3) and tried to see what happened if new bears were added to the initial population over the 100 years course. Wildlife biologists consulted historical data (step 4) with the intention of discovering what the home range (amount of land used throughout a lifetime) an adult female was. Combining information obtained during the previous steps, wildlife biologists found the minimum land area a bear population needed in order to have 50% chances of survival.
Step 6 involves the combination of information found in step 4 with that found in step 5. The scatter plot (a graph) was used in order to compare data sets, with the purpose of finding if the critical reserve was influenced by the home range.
Results:
Step 2 showed how 10 bears introduced into a nature reserve would have no chances of producing...
In contrast, if 50 individuals were to be introduced in a nature reservation, the population would have 98% chances of survival. In Step 3, it became obvious how the bear population would thrive if new bears were introduced every time a new generation emerged. Step 4 has shown that a female grizzly would use 774 km over its lifetime. Consequent to step 5, wildlife biologists found that a grizzly population would require at least 3981 km in order to have 50% of survival. Step 6 showed that an area of 3981 km would be enough to provide about 5 adult bear females with home ranges.
Discussion:
This study proved that the effectiveness of a nature reserve can be influenced by several factors, all of them being interdependent. Even though it is difficult to provide grizzly bears with everything they need in order for their population to thrive,…
