PeerJ Author 35 Points Contributions by role Preprint Author 35 Contributions by subject area Biodiversity Ecology Marine Biology Statistics Juan J Cruz Motta PeerJ Author Summary Ecology Environmental Impacts Past or current institution affiliations Universidad de Puerto Rico PeerJ Contributions Preprints 1 April 3, 2018 - Version: 1 An alternative protocol to estimate sample size at different spatial scales in studies of ecological communitie Edlin Guerra, Nuno Simoes, Juan J Cruz-Motta, Maite MascarĂ³ https://doi.org/10.7287/peerj.preprints.26823v1