| spatial and temporal trends in brominated flame retardants in seabirds from the pacific coast of canada. | polybrominated diphenyl ethers (pbdes) and hexabromocyclododecane (hbcdd) are bioaccumulative flame retardants. pbdes increased in many ecosystems during the late 20th century, but recently have declined in some environments. to examine trends in the northern pacific, we analysed pbdes, hbcdd and carbon and nitrogen stable isotopes (δ13c and δ15n) to account for dietary effects in archived eggs of three seabird species from british columbia, canada, 1990-2011 (rhinoceros auklets, cerorhinca mono ... | 2014 | 25194271 |
| trace metals, stable isotope ratios, and trophic relations in seabirds from the north pacific ocean. | trace elements including mercury, cadmium, selenium, and stable nitrogen isotope ratios (sigma15n) were measured in tissues of pacific seabirds. two species of albatross (diomedea immutabilis, diomedea nigripes), four species of shearwaters (puffinus bulleri, puffinus carneipes, puffinus griseus, puffinus tenuirostris), northern fulmar (fulmarus glacialis), and horned puffin (fratercula corniculata) were collected opportunistically by an experimental fishery in the north pacific ocean. two speci ... | 2005 | 16445091 |
| size- and condition-dependent predation: a seabird disproportionately targets substandard individual juvenile salmon. | selection of prey that are small and in poor body condition is a widespread phenomenon in terrestrial predator-prey systems and may benefit prey populations by removing substandard individuals. similar selection is widely assumed to operate in aquatic systems. indeed, size-selective predation is a longstanding and central tenet of aquatic food web theory. however, it is not known if aquatic predators select prey based on their condition or state, compared to their size. surprisingly, no comparab ... | 2016 | 27145620 |