Application of a global age-coding system (“WRP”), based on molts and plumages, for use in demographic and other studies of birds, Peter Pyle, Marcel Gahbauer, Erik I. Johnson, Thomas B. Ryder, Jared D. Wolfe
Michigan Tech Publications

Ecological and evolutionary significance of molt in lowland Neotropical landbirds, Jared D. Wolfe, Ryan S. Terrill, Erik I. Johnson, Luke L. Powell, T Brandt Ryder
Michigan Tech Publications

Long-term change in the avifauna of undisturbed Amazonian rainforest: ground-foraging birds disappear and the baseline shifts, Philip C. Stouffer, Vitek Jirinec, Cameron L. Rutt, Richard O. Bierregaard, Angélica Hernández-Palma, Erik I. Johnson, Stephen R. Midway, Luke L. Powell, Jared D. Wolfe, Thomas E. Lovejoy
Michigan Tech Publications