Pippa,
I disagree with you that every hunter is driven by the passion to kill. I know some that are very passionate about the wildlife they take care of. Actually the word care-taker would be the better word for them. They only kill an animal if all other measures have been considered and no option is left. Would you call a KWS ranger that has to shoot an elephant a passionate killer? I don´t. Hence I do make a big difference between them and tourists that fly to Africa for the passion to kill an animal.
The problems we have with wildlife today is not inside the national parks but in the buffer zones where animals go into farmland and destroy harvest etc. If you want to solve this problem there are only 3 options:
1. You put an electric fence around the national park and keep numbers of animals as low as they are,
2. You kill every animal that crosses the border of the park to avoid conflict because otherwise the farmer/poacher will,
3. Or you get rid of the farm to provide the animals with more space, hence allowing their numbers to increase. This is what I ment with turning an aquarium (=small national park) into a lake (=big national park that includes the buffer zones).
Since I guess we all agree on solution 3, how can we make sure all species will survive in equal numbers until we have enlarged the park? How do you suggest to avoid elephants turning the park into a desert which will leave most other animals without food and therefore threaten them of extinction? Please do not suggest relocation because the same problem exists in every park. How do you suggest to avoid human-wildlife conflicts until farm-land is turned into national parks or at least protected wildlife corridors?