1. Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
2. Azorean Biodiversity Group - CITAA, Departemento Ciências Agrárias, Universidade dos Açores, 9700-042 Angra do Heroísmo, Terceira, Portugal
3. Environmental Science Program, Ramapo College, Mahwah, NJ 07430-1680, U.S.A.
4. Department of Biology, Duke University, Durham, NC 27708, U.S.A.