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A bioenergetics approach to understanding the population consequences of disturbance: elephant seals as a model system
Costa, D.P.; Schwarz, L.; Robinson, P.; Schick, R.S.; Morris, P.A.; Condit, R.; Kilpatrick, A.M. (2016). A bioenergetics approach to understanding the population consequences of disturbance: elephant seals as a model system, in: Popper, A.N. et al. (Ed.) The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875: pp. 161-169. hdl.handle.net/10.1007/978-1-4939-2981-8_19
In: Popper, A.N.; Hawkins, A. (Ed.) (2016). The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875. Springer Science+Business Media, Inc: New York. ISBN 978-1-4939-2980-1. xxx, 1292 pp., more
In: Advances in Experimental Medicine and Biology. Springer: Berlin. ISSN 0065-2598, more
Peer reviewed article  

Available in  Authors 

Keywords
    Behavior; Demography; Otariidae Gray, 1825 [WoRMS]; Marine
Author keywords
    Population consequences of acoustic disturbance; Acoustic disturbance; Sea lion

Authors  Top 
  • Costa, D.P.
  • Schwarz, L.
  • Robinson, P.
  • Schick, R.S.
  • Morris, P.A.
  • Condit, R.
  • Kilpatrick, A.M.

Abstract
    Using long-term empirical data, we developed a complete population consequences of acoustic disturbance (PCAD) model and application for northern elephant seals. We assumed that the animals would not successfully forage while in a 100-km-diameter disturbance region within their foraging and transit paths. The decrease in lipid gain due to exposure was then translated to changes in birth rate and pup survival. Given their large foraging range, elephant seals were resilient to such a disturbance, showing no population-level effects. However, similar track analysis showed that given their more coastal nature, California sea lions were within a 25-km-diameter region of disturbance more often.

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