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Cover: Tuatara (Sphenodon punctatus) at Victoria University of Wellington, New Zealand. On pages 199-207, Moir et al. examine potential methods to prevent extinction of species dependent on hosts of divergent taxa, including the tuatara, when translocating threatened animals or plants. A tick (Amblyomma sphenodonti) that is specific to tuatara did not establish after two translocations of tuatara. Moir et al. suggest determining viable sizes of founder host populations for dependent species and managing populations of dependent species to maximize the probability of sustainable rates of transmission between hosts. Cover image © 2012 Piotr Naskrecki.

Photographer: Piotr Naskrecki is an entomologist and conservation biologist at the Museum of Comparative Zoology, Harvard University, where he works on conservation, biogeography, and evolution of sound-producing insects. As a photographer, Piotr has mastered the art of creating portraits of some of the smallest and most beautiful organisms. Between 2002 and 2009 he served as director of the Invertebrate Diversity Initiative at the Center for Applied Biodiversity Science of Conservation International. His work on the distribution of numerous groups of invertebrates informed decisions such as designations of regions with high concentrations of species richness. Piotr's publications, both technical and popular, strive to promote appreciation and conservation of invertebrates. His book The Smaller Majority (2005, Harvard University Press) illustrates many threats to the persistence of invertebrates. Relics: Travels in Nature's Time Machine (2011, Chicago University Press) discusses ecology and conservation of some of the world's most ancient organisms and ecosystems.