“Hunters sometimes argue that if they were to stop hunting, the deer population would explode. This is a false argument, because if hunting were to stop, we would also stop the practices that increase the deer population. State wildlife management agencies artificially boost the deer population in order to increase recreational hunting opportunities for hunters. By clearcutting forests, planting deer-preferred plants and requiring tenant farmers to leave a certain amount of their crops unharvested in order to feed the deer, the agencies are creating the edge habitat that is preferred by deer and also feeding the deer. If we stop hunting, we would also stop these tactics that increase the deer population.
If we stopped hunting, we would also stop breeding animals in captivity for hunters. Many nonhunters are unaware of state and private programs that breed quail, partridges and pheasants in captivity, for the purpose of releasing them in the wild, to be hunted.”
And in Scientific Arguments Against Hunting, Lin writes,
“Big 'game' animals like the white-tailed deer and black bears rarely exceed their biological carrying capacity – the maximum number of individuals the ecosystem will support without threatening other species. If they exceed that number, a lack of food will kill the weakest individuals, and will also cause the pregnant females to resorb embryos and have fewer offspring. The strongest will survive and the population will become healthier.
Unlike nature, hunters select the small and the weak to survive — reverse evolution. Instead of targeting the young, old, or sick individuals, hunters kill the largest, strongest males. Because hunters prefer large males with big horns, bighorn sheep in Alberta, Canada are now smaller, with smaller horns, compared to thirty years ago. And because hunters prefer to kill elephants with tusks, the African and Asian elephants that have a genetic mutation that leaves them tuskless are now dominating those populations.”