Abstract
Cover Photo: Working with data from a long term monitoring program at four Cinereous Vulture (Aegypius monachus) colonies in southern Spain, the authors evaluated the influence of environmental and population factors on breeding performance, both at the nest site and colony scale. At both scales, density-dependent processes regulated breeding productivity and were best explained by interference competition. This photo, used with permission by Antonio Atienza Fuerte, illustrates the article “Density-dependent productivity in a colonial vulture at two spatial scales” by Fernández-Bellon et al. that appears in Ecology 97(2). For more images related to the article, see the Photo Gallery in this issue of the Bulletin.
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