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Residues of DDE in kestrel eggs collected near Ithaca, New York, averaged 35, 42, 33 and 37 p.p.m. in 1969, 1970, 1971 and 1972, respectively. Based o...
Read moreIn studies on organochlorine residues in lakes of the Rift Valley, Kenya, 47% of the farms surveyed in the Nakuru catchment basin used either DDT or d...
Read moreOrganochlorine levels and shell thickness indices varied little between eggs in the same clutch of Accipiter nisus in the UK, but they varied greatly ...
Read moreSparrowhawks (Accipiter nisus) found dead in eastern England showed a significant reduction in HEOD (organochlorine pesticide residues derived from al...
Read moreA statistical study of breeding success, eggshell index, and DDE, HEOD and PCB levels in Accipiter nisus eggs collected from 17 areas in Britain durin...
Read morePersistent pesticide residues remain a significant environmental pollutant, reducing breeding success of predatory birds even where such pesticides ha...
Read moreA major challenge in the conservation of threatened and endangered species is to predict population decline and design appropriate recovery measures. ...
Read moreForty adult glaucous gulls Larus hyperboreus were collected on Bear Island, Norway, in the Svalbard archipelago in the western Barents Sea in July 199...
Read moreConcentrations of DDT and its metabolites were compared over space, time, feeding strategy and diet in the striped kingfisher (Halcyon chelicuti), red...
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