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EIA Database

Summing the strokes: Energy economy in northern elephant seals during large scale foraging migrations

2015
Open Access Peer Reviewed Publication

Movement Ecology

Maresh, J., Adachi, T., Takahashi, A., Naito, Y. et al.

Background: The energy requirements of free-ranging marine mammals are challenging to measure due to cryptic and far-ranging feeding habits, but are important to quantify given the...
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Keywords: Accelerometer, Aerobic dive limit, Body size, Disturbance, Field metabolic rate, Foraging, Hypometabolism, Locomotion, Pregnancy

The extra burden of motherhood: reduced dive duration associated with pregnancy status in a deep-diving mammal, the northern elephant seal

2017
Open Access Peer Reviewed Publication

Biology Letters

Hückstädt, L. A., Holser, R. R., Tift, M. S., and Costa, D. P

The cost of pregnancy is hard to study in marine mammals, particularly in species that undergo pregnancy while diving continuously at sea such as elephant seals...
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Keywords: Biologging, Diving behaviour, Northern elephant seal, Pregnancy