Habitat preferences of Phoebetria albatrosses in sympatry and allopatry
Bentley, Lily K. ORCID: https://orcid.org/0000-0002-0365-6385; Phillips, Richard A.; Carpenter‐Kling, Tegan; Crawford, Robert J. M.; Cuthbert, Richard J.; Delord, Karine; Dilley, Ben J.; Makhado, Azwianewi B.; Miller, Peter I.; Oppel, Steffen; Pistorius, Pierre A.; Ryan, Peter G.; Schoombie, Stefan; Weimerskirch, Henri; Manica, Andrea. 2024 Habitat preferences of Phoebetria albatrosses in sympatry and allopatry. Journal of Biogeography, 51 (10). 1986-1998. 10.1111/jbi.14966
Before downloading, please read NORA policies.Preview |
Text (Open Access)
© 2024 The Author(s). Journal of Biogeography published by John Wiley & Sons Ltd. Journal of Biogeography - 2024 - Bentley - Habitat preferences of Phoebetria albatrosses in sympatry and allopatry.pdf - Published Version Available under License Creative Commons Attribution 4.0. Download (9MB) | Preview |
Abstract/Summary
Aim: Competition is often proposed to drive niche segregation along multiple axes in speciose communities. Understanding spatial partitioning of foraging areas is particularly important in species that are constrained to a central place. We present a natural experiment examining variation in habitat preferences of congeneric Southern Ocean predators in sympatry and allopatry. Our aim was to ascertain consistency of habitat preferences within species, and to test whether preferences changed in the presence of the congener. Location: Southern Hemisphere. Taxon: Multiple colonies of both species within the genus Phoebetria (sooty albatrosses). Methods: The two Phoebetria albatrosses breed on islands located from ~37–55°S – sooty albatrosses (P. fusca) in the north and light-mantled albatrosses (P. palpebrata) in the south – with sympatric overlap at locations ~46–49°S. We analysed GPS and PTT tracks from 87 individuals and multiple remotely sensed environmental variables using GAMs, to determine and compare the key factors influencing habitat preference for each species at each breeding colony. Results While foraging habitat preferences are consistent in light-mantled albatrosses, there is divergence of preferences in sooty albatrosses depending on whether they are in sympatry with their congener or in allopatry. Main Conclusions This study represents the most comprehensive work on this genus to date and highlights how habitat preferences and behavioural plasticity may influence species distributions under different competitive conditions.
Item Type: | Publication - Article |
---|---|
Digital Object Identifier (DOI): | 10.1111/jbi.14966 |
ISSN: | 0305-0270 |
Additional Keywords: | albatross, antarctica, biologging, coevolution, competition, marine predators, satellite telemetry, seabirds, Southern Ocean |
Date made live: | 03 Jun 2024 13:23 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/537509 |
Actions (login required)
View Item |
Document Downloads
Downloads for past 30 days
Downloads per month over past year