| elevated mercury concentrations in the feathers of grey-faced petrels (pterodroma gouldi) in new zealand. | our objective was to measure the concentrations of hg, as, cd, co, cr, cu, pb, sb, v and zn in the body feathers of grey-faced petrel (pterodroma gouldi), fluttering shearwater (puffinus gavia), little shearwater (puffinus assimilis) and common diving petrel (pelecanoides urinatrix) from breeding colonies in new zealand between 2006 and 2013. the mean hg concentration (36.48ppm; sd=9.59) in grey-faced petrel feathers was approximately 8.5 to 14 times that detected in the other three species samp ... | 2017 | 28372818 |
| non-precocial grey-faced petrel chicks (pterodroma macroptera gouldi) show no age-related variation in corticosterone responses to capture and handling. | development patterns in birds range from precocial species, which hatch chicks largely capable of independent existence, to altricial species, chicks of which are highly dependent on their parents for extended periods. previous work indicates precocial chicks have a robust corticosterone response from hatching whereas non-precocial and altricial chicks have a small response that increases through development. grey-faced petrels are characteristic of most burrowing procellariiform seabirds with n ... | 2008 | 18472100 |
| corticosterone responses of grey-faced petrels (pterodroma macroptera gouldi) are higher during incubation than during other breeding stages. | we report the results of the first field study examining seasonal changes in corticosterone responses of typically long-lived birds of the order procellariiformes. in particular, we examined whether grey-faced petrels pterodroma macroptera gouldi showed changes in circulating baseline corticosterone concentrations and corticosterone responses to a standardized handling protocol across the breeding season. such changes have been associated with changes in body condition and variations in energy d ... | 2013 | 15702465 |