This is a great topic, and cheers to
@Onychorhynchus coronatus for starting up a discussion on it.
I'll preface by saying that whether or not trophy hunting is morally good or permissible is a different issue than whether or not trophy hunting helps conserve wildlife. I'm going to leave the former alone for the most part, other than to address a couple of things:
That's not surprising to me. There are a lot of instances of Western countries and organizations dictate what they think the right moves are to conserve wildlife in Africa. Many African people, governments, and countries disagree with some of these moves and resent being told that they don't know how to manage their own wildlife and natural resources. Personally I'm sympathetic to that standpoint; Africans have a tough situation balancing necessary economic development with conserving wildlife; there's a lot of trade-off decisions and cost-benefit analyses involved that Westerners may not intuitively understand. Many people have a globalist mindset and want wildlife in Africa to be conserved for the
world's benefit, while Africans and the governments on that continent may not share the same perspective.
I think utilitarian applies here in the sense that a few animals being given up to trophy hunters to conserve the population as a whole is an intrinsically utilitarian argument. As for the naming of that philosophy, it relates to maximizing "utility", which can mean "greater good" or "happiness" or "revenue" or any other number of things depending on the context.
With that, I'll focus on the idea of whether or not trophy hunting helps conservation.
I think the correct answer is: it can, but only when applied properly. Part of the reason for there being mixed evidence about the benefits of trophy hunting is because situations are different between species and between countries; what works for lions in Tanzania may not be what works for rhinos in South Africa. I have read papers showing evidence that trophy hunting indeed has helped many species in many areas; the comeback of white rhinos was largely supported by trophy hunting. Meanwhile, trophy hunting may be partly to blame for a sharp decline in lions throughout the continent (though it's certainly not the only reason - habitat loss, poaching, and conflict with local people are most likely bigger contributors).
Some general findings from what I've read on the subject:
- Trophy hunting works best when managed by local communities who benefit from the practice. They have an incentive to protect the animal populations they have, as well as protect the economic impact of the hunters' bid money and spending on local services. Governments are prone to treating trophy wildlife as resources to be tapped harder when revenue is low, and the corruption of many African countries leads to poor practices and over-exploitation of populations. Likewise, if the benefits mainly go to private non-local companies that lowers personal investment and raises the likelihood of improper practices.
- Trophy hunting works best when the animals taken were not going to have a significant impact on the population, the primary example being older males that are past the age of peak reproductive dominance. Hunting females, juveniles, or males in their reproductive prime can harm the population both demographically and genetically.
- Trophy hunting works best in areas where ecotourism is not a viable alternative. A study found that most hunters were fine with hunting in areas where wildlife was not concentrated or easily visible, or where the surroundings were not very aesthetically pleasing. As much as ecotourism is touted as the best way to conserve wildlife, for places that are not pretty and where wildlife is not easy to look at ecotourism is not a very realistic option. Trophy hunting provides communities in those areas with a suitable replacement model.
- Trophy hunting can also be a good substitute for national parks or tourism-based conservation areas because it receives far fewer people. While national parks are great and we should keep them, the reality is that high levels of tourism can put stress on local environments and populations. Game reserves allow for a more natural, less human-stressed local environment that nevertheless becomes profitable thanks to hunter bids - even if it makes less money on average than national parks or tourism-based ventures do.
- In relation to the two points above, game reserves create a reason to leave many wildlife areas undeveloped - which is important when land is a commodity and there are economic incentives to develop it rather than leaving it natural.
TL,DR: I would say that trophy hunting is a useful and realistically necessary conservation tool. It is not perfect and only works when done properly, but it fills in gaps created by other conservation measures and there is evidence showing that trophy hunting can have a positive impact on wildlife populations in some situations. Ultimately the decision of whether or not to practice it should, I think, be left up to two things: the likelihood of it benefiting a particular population in a particular area, and the likelihood of it positively benefiting the local community.