| 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 |
| long-term population trends of sooty shearwater (puffinus griseus) revealed by hunt success. | the annual hunt of muttonbirds (chicks of the sooty shearwater, puffinus griseus), undertaken by the rakiura maori people of southern new zealand, is economically and socially integral to their cultural identity. muttonbirders concerned at ensuring that the hunt remains viable for coming generations have provided catch records to help ascertain historic trends in hunt success. analysis of eight catch diaries for a 67-year period demonstrates considerable consistency across diaries in the variabi ... | 2011 | 21774432 |
| concentrations of trace elementals and organochlorines in mutton bird (puffinus griseus). | the sooty shearwater (puffinus griseus, commonly known as mutton bird) is a migratory wild seabird, annually harvested for food by certain native groups in new zealand and australia and in many parts of the world. the concentrations of 22 elements and several organochlorine pesticides [2,2-bis(chlorophenyl)-1,1,1-trichloroethane (ddt), its derivatives dichlorodiphenyldichloroethene (dde) and dichlorodiphenyldichloroethane (ddd), aldrin, chlordane, dicofol, lindane, and methoxychlor] in mutton bi ... | 2011 | 21676460 |
| fibrous osteodystrophy in two northern royal albatross chicks (diomedea sanfordi). | in february 2004, two northern royal albatross chicks aged 20 and 25 days old were presented for necropsy. both chicks had been hand-fed in situ at a breeding colony, from 2-3 days post-hatch. the hand-rearing diet consisted of boneless hoki fillets (macraronus novaezelandiae), electrolytes, and sooty shearwater (puffinus griseus) proventricular oil obtained as a by-product of cultural harvest. pathological findings: routine necropsies on the affected chicks revealed many bones were soft and eas ... | 2011 | 21851303 |
| size and dynamics of microplastic in gastrointestinal tracts of northern fulmars (fulmarus glacialis) and sooty shearwaters (ardenna grisea). | we found microplastic in 89.5% of 143 northern fulmars from 2008 to 2013 and 64% of 25 sooty shearwaters in 2011-2012 that were found dead or stranded on oregon and washington beaches. average plastic loads were 19.5 pieces and 0.461g for fulmars and 13.3 pieces and 0.335g for shearwaters. pre-manufactured plastic pellets accounted for 8.5% of fulmar and 33% of shearwater plastic pieces. in both species, plastic in proventriculi averaged 2-3mm larger in greatest dimension than in ventriculi. int ... | 2017 | 28063702 |
| seasonal sexual segregation by monomorphic sooty shearwaters puffinus griseus reflects different reproductive roles during the pre-laying period. | tracking technology has revolutionized knowledge of seabird movements; yet, few studies have examined sex differences in distribution and behavior of small to medium-sized, sexually-monomorphic seabirds. application of bird-borne geolocation-immersion loggers revealed seasonal segregation in the sexually-monomorphic sooty shearwater puffinus griseus, mainly in the pre-laying period, when there were clear differences in reproductive roles. shearwaters first returned to the falkland islands on 27 ... | 2014 | 24416429 |
| shearwater foraging in the southern ocean: the roles of prey availability and winds. | sooty (puffinus griseus) and short-tailed (p. tenuirostris) shearwaters are abundant seabirds that range widely across global oceans. understanding the foraging ecology of these species in the southern ocean is important for monitoring and ecosystem conservation and management. | 2010 | 20532034 |
| pattern recognition in long‐term sooty shearwater data: applying machine learning to create a harvest index. | rakiura māori (new zealand's southernmost group of indigenous peoples) have harvested the chicks of burrow-nesting sooty shearwaters (tītī; puffinus griseus) for generations. as part of the harvest process, some families have maintained annual harvest diaries, some dating back to the 1950s. we used generalized boosted regression models, a machine-learning algorithm, to calculate a harvest index that takes into account factors that could impact the numbers of birds taken on any given hunt. for pr ... | 2019 | 29188684 |