Relative value of different heathland fragment sizes for biodiversity and provision of ecosystem services.

<p>(a) Biodiversity value, (b) carbon density, (c) aesthetic value, (d) recreation value, and (e) timber value. Heathland fragments were divided into three size categories: small (<50 ha), medium (50–300 ha) and large (>300 ha). The values presented were produced by multiplying the proportion of heathland area comprising the different vegetation types, by the values per unit area of each type (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0130004#pone.0130004.g002" target="_blank">Fig 2</a>). Values presented are means; those heathland sizes grouped by the same letter are not significantly different (P< 0.05, Mann Whitney U test conducted on median values).