Pelagic distribution of Gould’s Petrel (Pterodroma leucoptera): linking shipboard and onshore observations with remote-tracking data

摘要: This study describes and compares the pelagic distribution migratory patterns of two subspecies Gould’s Petrel (Pterodroma leucoptera), contrasts data obtained from tracking birds at sea using geolocators with observational (shipboard sightings, by-catch records beachcast specimens). While breeding, tracked individuals both (P. l. leucoptera P. caledonica) foraged within Tasman Sea south Australian continent, forays west into Indian Ocean before laying. After migrated to distinct non-breeding ranges eastern tropical Pacific Ocean. Observational identified general pattern migration foraging areas species, whereas provided details routes timing migration, core ranges, marked spatial temporal segregation between subspecies. However, by attaching only established breeders, as is typical studies small medium-sized seabirds, these devices failed identify that (pre-breeders adults are deferring breeding) may not follow same schedules or have at-sea distribution. We conclude integrating electronic substantially improves our understanding seabird populations.