Sustainable hunting

Methods

Various actions and plans can be taken to make hunting more sustainable. A common practice of most sustainable hunting models includes using monetary value derived from purchases and spending that money back on conservation. Methods regarding what and when animals should and shouldn't be taken are also common, such as hunting outside of breeding seasons, restricting areas that can be hunted, and not hunting premature game. Selective hunting and implementing hunting seasons are other approaches by which flourishing species can be taken while those with threatened populations are protected. Hunting limits are also an effective measure, as over-harvest will negatively affect the population's density. Studies have shown that it is best when a bundle of these methods are applied to have the greatest effect on growing a population. A method seen in Zambia is the closure of hunting for a short number of years to allow species recovery. While recovery is often used once the damage has been done, using it as a precautionary measure has proven effective in that estimates of age restrictions and other regulations are not always fully accurate; thus, temporary complete closure accounts for error. Conservation efforts through the use of trophy hunting have been used to grow the white rhinoceros population as a managed hunting system allows for calculated removal from populations, generating revenue without affecting numbers too much. When hunting has no regulation, no money is gained for conservation, and the removal rate is unregulated. With trophy hunting, conservation revenue is made even where ecotourism is not possible.

Current efforts

Sustainability and conservation have been a relatively new focus for the world as environmental changes press forward. Current examples of sustainable hunting and conservation development include collecting more data in a methodical manner to better study policy's effect on populations, as well as the World Wide Fund for Nature measuring the effect of sustainable hunting in Namibia through the Living in a Finite Environment Project. This project worked to develop conservation planning and has been successful in preventing the overexploitation of resources such as locally hunted animals. In regards to whaling, Japan had put toward conservation efforts until it withdrew from the International Whaling Commission in 2018 due to a shift toward restricted whale hunting compared to sustainable taking. Efforts toward sustainable hunting can stem from the need for local cultures to continue harvesting bushmeat species. The flying fox, for example, is culturally valuable, and as its harvest is unlikely to be stopped, methods of regulating the take can be implemented. While a sustainable implementation of trophy and sport hunting has improved the numbers of some species, a sustainable modeled management does not always guarantee the growth of the population in targeted species. For instance, despite an aim to increase waterfowl populations in the 1990s and 2000s, the number of species most sought by hunters such as black ducks and mallards continued to fall.

Challenges

There are many obstacles that prevent sustainable hunting from growing into a model where populations would not be negatively affected by hunting. These include issues such as private land, the growth of the human population, and the challenge of creating laws/ regulations that protect multiple species. Political issues regarding indigenous people and those who rely on certain animals for food also pose challenges. Protections that promote sustainable hunting need to be strict enough to effectively regulate commercialized and recreational huntsmen and prevent the populations of game animals from dwindling, but special policies must ensure that those who rely on the animals for a way of life can still survive. Conflicting views between those who support sustainable hunting and groups like the Humane Society of the United States make ethical considerations another factor when implementing this system. Certain geographical areas, such as parts of Africa, rely on mammals that may be endemic or endangered to the world but are still hunted as the main source of bushmeat to allow human survival. This conflicts with conservation-related hunting practices as the food source needs to be taken regardless of environmental concerns. Other challenges include finding ways of systemizing and measuring data accurately and using it to develop a sustainable hunting model that will for sure be successful. Factors from other human-related environmental pressures, such as urbanization and climate change, make conclusive models hard to calculate. When sport hunting is implemented as a conservation tool through revenue generation to help the targeted species flourish, the conservation approach itself can have adverse effects. Adverse effects and biodiversity issues have arisen in the case of white-tailed deer in the U.S. from attempts to keep their population numbers high to supply enough game for hunters. The artificially high game numbers then cause environmental damage, showing that the growth of population numbers, often a goal for sustainable hunting models, poses its own challenges.