Some recent conservation proposals – including the Zoological Society of London’s (ZSL) EDGE of Existence programme – have focused on the value of protecting species with high evolutionary distinctiveness, a dimension of biodiversity conservation that’s not been much emphasized in conservation practice. In this paper we critically examine this strategy, investigating whether there are good reasons for prioritizing evolutionarily distinctive species, and the phylogenetic diversity to which they contribute, over other forms of biodiversity. We first discuss evolutionary distinctiveness, its relationship (...) to phylogenetic diversity, how phylogenetic diversity can be measured, and intuitive thoughts about its value. Then we consider five kinds of arguments about the value of phylogenetic diversity that might be made to support prioritizing it, given its current lack of emphasis in conservation practice. These are: arguments based on protecting biodiversity, arguments based on option value, arguments based on ecological resilience, arguments based on historical value, and arguments based on aesthetic value. We maintain that these arguments, taken individually, offer varying degrees of fairly weak support for valuing species with high evolutionary distinctiveness. Taken together, however, these arguments seem sufficiently strong to justify programs such as EDGE, insofar as such programs are framed as correctives to a past lack of emphasis on the protection of phylogenetic diversity. We suggest, however, that these arguments are not sufficiently strong to support an absolute prioritization of phylogenetic diversity over protecting other forms of biodiversity. (shrink)

The attribution of perceptually based aesthetic properties to a garden should be indexed to whether that attribution is (1) to the ever-changing dynamic garden or (2) to some phenomenal capture of the garden in one’s experience, frozen like a photograph. Perceptually based aesthetic properties are used to identify objects, to compare them to others, to evaluate them, and to describe them as we seek to interpret or find meaning in them. This set of activities requires aesthetic properties that do not (...) change, or at least not much, if any degree of normativity is to be maintained. But those aesthetic properties that are derived from our immediate sensations of a garden only describe a garden at a certain time, under certain conditions, in certain states—all of which change constantly. Both descriptions are useful, and perhaps necessary, for appreciating gardens. (shrink)

Mei in Chinese is normally translated into English as "beauty" or "the beautiful." The nature of mei is not a central theme in Zhuangzi's philosophy; neither is it a concept of particular importance in traditional Chinese aesthetics. The core concepts of Chinese aesthetics, according to historians of Chinese aesthetics, are dao, qi, and xiang, but mei is not one of them.1 In Chinese aesthetic history, we see different points of emphasis in contrast to the prevailing concern with beauty in Western (...) aesthetics. "The nature of beauty," as Crispin Sartwell points out, "is one of the most enduring and controversial themes in Western philosophy, and is—with the nature of art—one of the two fundamental issues in... (shrink)

This paper describes the disorienting aesthetics of some environments that are characteristic of the Anthropocene. We refer to these environments as 'mashed-up' and present three dimensions - phenomenological, epistemological and narrative - of the aesthetic disorientation they can trigger. We then advance the suggestion that a rich, nuanced and meaningful aesthetic experience of mashed-up Anthropocene environments (MAEs) calls for a mode of appreciation grounded on performative practices of aesthetic familiarisation with particular MAEs and entities and processes thereof. Familiarisation with MAEs, (...) we further note, can have disorienting codas of its own. It can reveal and highlight, rather than eliminate or alleviate, the solid strangeness of Earth even in the systemically humanised world of the Anthropocene, and it can expose and tie at least some of our agency, identity and sources of meaning in life to the same unstable evolvability of particular MAEs. (shrink)