Slow to change? Individual fidelity to three-dimensional foraging habitats in southern elephant seals, Mirounga leonina


Contact
Horst.Bornemann [ at ] awi.de

Abstract

Long-term fidelity to foraging areas may have fitness benefits to individuals, particularly in unpredictable environments. However, such strategies may result in short-term energetic losses and delay responses to fast environmental changes. We used satellite tracking data and associated diving data to record the habitat use of nine individual southern elephant seals over 34 winter migrations. By assessing overlap in two- and three-dimensional home ranges we illustrate strong long-term (up to 7-year) fidelity to foraging habitat. Furthermore, a repeatability statistic and hierarchical clustering exercise provided evidence for individual specialization of foraging migration strategies.We discuss the possible influences of stable long-term foraging migration strategies on the adaptability of individual elephant seals to rapid environmental change. Our results further illustrate the need for more long-term longitudinal studies to quantify the influence of individual-level site familiarity, fidelity and specialization on population-level resource selection and population dynamics.



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
ISI/Scopus peer-reviewed
Publication Status
Published
Eprint ID
44384
DOI 10.1016/j.anbehav.2017.03.006

Cite as
McIntyre, T. , Bester, M. N. , Bornemann, H. , Tosh, C. A. and de Bruyn, P. N. (2017): Slow to change? Individual fidelity to three-dimensional foraging habitats in southern elephant seals, Mirounga leonina , Animal Behaviour, 127 , pp. 91-99 . doi: 10.1016/j.anbehav.2017.03.006


Download
[img]
Preview
PDF
McIntyre-etal_2017_postprint.pdf

Download (1MB) | Preview
Cite this document as:

Share


Citation

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item