Field physiology: physiological insights from animals in nature

DP Costa, B Sinervo - Annu. Rev. Physiol., 2004 - annualreviews.org
▪ Abstract Whereas comparative physiology documents the range of physiological variation
across a range of organisms, field physiology provides insight into the actual mechanisms …

Aerobic dive limit: how often does it occur in nature?

DP Costa, NJ Gales, ME Goebel - … and Physiology Part A: Molecular & …, 2001 - Elsevier
Diving animals offer a unique opportunity to study the importance of physiological constraint
in their everyday behaviors. An important component of the physiological capability of any …

The cost of foraging by a marine predator, the Weddell seal Leptonychotes weddellii: pricing by the stroke

TM Williams, LA Fuiman, M Horning… - Journal of …, 2004 - journals.biologists.com
Foraging by mammals is a complex suite of behaviors that can entail high energetic costs
associated with supporting basal metabolism, locomotion and the digestion of prey. To …

Energetics of a benthic diver: seasonal foraging ecology of the Australian sea lion, Neophoca cinerea

DP Costa, NJ Gales - Ecological Monographs, 2003 - Wiley Online Library
This research examines the foraging energetics and diving behavior of the Australian sea
lion, Neophoca cinerea. We examine whether the foraging ecology of the Australian sea lion …

Linking movement, diving, and habitat to foraging success in a large marine predator

D Austin, WD Bowen, JI McMillan, SJ Iverson - Ecology, 2006 - Wiley Online Library
Establishing where and when predators forage is essential to understanding trophic
interactions, yet foraging behavior remains poorly understood in large marine carnivores …

A phylogenetic analysis of the allometry of diving

LG Halsey, PJ Butler… - The American …, 2006 - journals.uchicago.edu
The oxygen store/usage hypothesis suggests that larger animals are able to dive for longer
and hence deeper because oxygen storage scales isometrically with body mass, whereas …

When does physiology limit the foraging behaviour of freely diving mammals?

DP Costa, CE Kuhn, MJ Weise, SA Shaffer… - International congress …, 2004 - Elsevier
Diving animals offer a unique opportunity to study the importance of physiological constraint
and the limitation it can impose on animal's behaviour in nature. This paper examines the …

Multiple foraging strategies in a marine apex predator, the Galapagos sea lion Zalophus wollebaeki

S Villegas-Amtmann, DP Costa, Y Tremblay… - Marine Ecology …, 2008 - int-res.com
Three fundamental foraging patterns in air-breathing marine vertebrates have been
described: epipelagic, mesopelagic and benthic. Many sea lion species with access to …

Individual dietary specialization and dive behaviour in the California sea otter: Using archival time–depth data to detect alternative foraging strategies

MT Tinker, DP Costa, JA Estes, N Wieringa - Deep Sea Research Part II …, 2007 - Elsevier
The existence of individual prey specializations has been reported for an ever-growing
number of taxa, and has important ramifications for our understanding of predator–prey …

Geographic variation in the foraging behaviour, diet and chick growth of rockhopper penguins

Y Tremblay, Y Cherel - Marine ecology progress series, 2003 - int-res.com
The foraging ecology of rockhopper penguins was investigated at 3 sites marked by
contrasting ecological conditions. The northern subspecies was studied at Amsterdam …