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Article
Bridget Re, Auteur ; Sarah M. Karpanty, Auteur ; Elizabeth A. Hunter, AuteurSaltmarsh Sparrows (Ammospiza caudacuta), a tidal-marsh specialist, face severe population declines due to habitat loss, sea-level rise, and predation. While previous research suggests that predation pressure increases at the southern extent of [...]
Article
Chelsea E. Weithman, Auteur ; James D. Fraser, Auteur ; Sarah M. Karpanty, Auteur ; Daniel H. Catlin, AuteurMobility of precocial chicks facilitates self-feeding and escape from predators, but also allows chicks to move into potentially dangerous areas. At Cape Hatteras National Seashore and Pea Island National Wildlife Refuge, North Carolina, precoci[...]
Article
Chelsea E. Weithman, Auteur ; Daniel Gibson, Auteur ; Katie M. Walker, Auteur ; Sidney B. Maddock, Auteur ; James D. Fraser, Auteur ; Sarah M. Karpanty, Auteur ; Daniel H. Catlin, AuteurPiping Plovers (Charadrius melodus) undertake comparatively short migrations for a shorebird and were not previously thought to congregate in large numbers during migration. Superpopulation size (individuals occurring at the study site during th[...]
Article
Kelsi L. Hunt, Auteur ; James D. Fraser, Auteur ; Sarah M. Karpanty, Auteur ; Daniel H. Catlin, AuteurHabitat quality can have a profound effect on the condition and fitness of individual birds and on population demography. We investigated the effects of habitat metrics (invertebrate abundance and habitat type) on the condition (egg mass, adult [...]
Article
Stephanie M. Nefas, Auteur ; Kelsi L. Hunt, Auteur ; James D. Fraser, Auteur ; Sarah M. Karpanty, Auteur ; Daniel H. Catlin, Auteur
Article
Christy N. Wails, Auteur ; Daniel H. Catlin, Auteur ; Samantha G. Robinson, Auteur ; Henrietta A. Bellman, Auteur ; Katie W. Oliver, Auteur ; Hope L. VanDerwater, Auteur ; Sharon S. Dorsey, Auteur ; Audrey DeRose-Wilson, Auteur ; Sarah M. Karpanty, Auteur ; James D. Fraser, AuteurThe use of unique markers in ornithology has a long history and is predicated on the assumption that markers have negligible effects on behavior and survival. The assumption that marks are harmless is particularly important with imperiled specie[...]
Article
Jonathan B. Cohen, Auteur ; Sarah M. Karpanty, Auteur ; James D. Fraser, Auteur ; Barry R. Truitt, AuteurA population decline of the western Atlantic red knot (Calidris canutus rufa) has been linked to food limitation during the spring migratory stopover in Delaware Bay, USA. The stopover ecology at potential alternative sites has received little a[...]
Article
Matthew D. Hillman, Auteur ; Sarah M. Karpanty, Auteur ; James D. Fraser, AuteurMethods commonly used to estimate the number of nests and size of the breeding population at colonies of Least Terns (Sternula antillarum) and other waterbirds include walk-through counts of nests (ground-nest counts) and counts of incubating ad[...]
Article
Audrey DeRose-Wilson, Auteur ; James D. Fraser, Auteur ; Sarah M. Karpanty, Auteur ; Daniel H. Catlin, AuteurDespite concerns about their population status, information about the habitat preferences, population size, and vital statistics of Wilson's Plovers (Charadrius wilsonia) is currently lacking. We compared habitat characteristics of nest sites an[...]
