Publications

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organochlorine and heavy metal residues in black duck eggs from the atlantic flyway, 1978.black duck (anas rubripes) eggs were collected during 1978 in the atlantic flyway. one egg from each of 49 clutches was analyzed for organochlorine compounds and mercury. dde was detected in 39 eggs, ranging from 0.09 ppm to 3.4 ppm, wet weight. dde residues were highest in eggs from delaware, where the mean dde level was 2.0 ppm. ddt and tde were present at low levels in only five and four eggs, respectively. pcbs resembling aroclor 1260 were detected in 24 eggs and ranged from 0.43 ppm to 2.9 ...19807232104
blood lead levels of wild steller's eiders (polysticta stelleri) and black scoters (melanitta nigra) in alaska using a portable blood lead analyzer.sea duck populations are declining in alaska. the reasons for the decline are not known; environmental lead exposure is one suspected cause. thirty wild steller's eider ducks (polysticta stelleri) and 40 wild black scoter ducks (melanitta nigra) were tested for blood lead levels using a portable blood lead analyzer (leadcare; esa, inc., chelmsford, massachusetts 01824, usa). sixty-seven and one-tenth percent of the sea ducks had undetectable blood lead levels, 30.0% had values indicating normal ...200617319136
a generalizable energetics-based model of avian migration to facilitate continental-scale waterbird conservation.conserving migratory birds is made especially difficult because of movement among spatially disparate locations across the annual cycle. in light of challenges presented by the scale and ecology of migratory birds, successful conservation requires integrating objectives, management, and monitoring across scales, from local management units to ecoregional and flyway administrative boundaries. we present an integrated approach using a spatially explicit energetic-based mechanistic bird migration m ...201627509754
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