About forty years ago the Great Auk (Plautus impennis) of the Northern Atlantic became exterminated. -A vigorous search has been made for it and its remains; fabulous sums have been paid for skins and eggs; and monographers, among whom some of the most prominent ornithologists, have collected together the most minute facts bearing upon its history, and discussed in extreme detail the number of ...

Our previous study demonstrated that avian species possesses two distinct aryl hydrocarbon receptors (AHR1 and AHR2). To elucidate the functional characterization of avian AHRs, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) binding affinities and in vitro DRC-induced transcriptional activities of AHR isoforms from chicken (Gallus gallus), black-footed albatross (Phoebastria nigripes), common cormo...

Cormorants and other wildlife populations have come in real or perceived conflicts with humans over exploited fish stocks. From gut contents of cormorants, and using an extension of the Catch equation, we estimated the degree of short term competition between great cormorants and coastal fisheries in two areas along the Swedish Baltic Sea. Cormorants consumed 10 and 44%, in respective area, of ...

introductionenvironmental pollution, especially marine pollution, is one of the complex and minatory problems that human is facing at the present time. many of human activities have irrecoverable outcomes and affect the marine environment in such a way that destruction of marine zones has become a significant warning. one of the most important ecosystems in iran is hara biosphere reserve, locat...

Contaminant monitoring in biota is important for determining environmental status and to detect or prioritize action on hazardous substances. Predators higher up a food chain are often used of contaminants that bioaccumulate. However, it not always possible find predators both abundant have wide distribution national international contaminant monitoring. Great cormorants (Phalocrocorax carbo) w...