It is often supposed that valuable organisms are more valuable if they are rare. Likewise if they belong to endangered species. I consider what kinds of value rarity and endangerment can add in such cases. I argue that individual organisms of a valuable species typically have instrumental value as means to the end of preserving their species. This progenitive value, I suggest, tends to increase exponentially with rarity. Endlings, for their part, typically have little progenitive value; however, I argue that (...) they may nonetheless have persistence value because, merely by existing, they postpone the numerical extinction of their species. Finally, I propose that a sentient endling can have higher lifeworld value than it would have had were it not the last of its kind. This, I argue, is because when a sentient endling dies, very little of its lifeworld is preserved – and this, I suggest, can be a bad thing. (shrink)

It is fairly commonplace to think that the capacity for sentience need not be the only basis of moral status. Pluralists contend that moral status is grounded in several other valuable capacities as well as, or instead of, sentience, such as agency, empathy, or sociality. However, this contention contrasts with a standard assumption in animal ethics: that sentience should be the only basis of moral status. This article vindicates that assumption. Whilst classical utilitarians have defended a similar claim about sentience (...) in relation to ultimate value, the merits of this view have gone relatively unnoticed in contemporary debates about moral status and animal ethics. An account based on sentience alone avoids conceptual redundancy and has greater explanatory power than pluralist alternatives. An account of moral status based exclusively on sentience also yields two significant and revisionary implications that have not been recognised. First, the distinction between persons and nonpersons cannot hold, so all moral patients, including nonhuman animals, should feature as primary subjects in ethical theories, public policies, and research agendas. Second, we ought to favour nonhuman interests far more often than we tend to suppose. (shrink)

Values have always tended to play a central role in discourse on the environment, a tendency which is currently particularly evident in the biodiversity context. Traditionally, arguments about the environment have invoked instrumental value to highlight the necessity or utility of a healthy environment for people and intrinsic value to emphasize the importance of protecting nature for its own sake. More recently, this value dichotomy has been challenged, and the notion of a third value category – relational value – has (...) been introduced into the political and social conservation discussion. In the field of environmental philosophy, the idea of a third category of environmental value already has a longer tradition. This article describes and compares several philosophical accounts of third-category environmental value to contribute to a better characterization of relational value and thus to a better understanding of the role this type of value can play in environmental discourse and policy. (shrink)

The Southern Journal of Philosophy, Volume 59, Issue 3, Page 270-308, September 2021.