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Keywords: pinniped
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Journal Articles
J Exp Biol (2022) 225 (18): jeb244163.
Published: 16 September 2022
... elephant seal). Power output and mechanical COT were compared for all four pinniped species by tracking the animals' center of mass. The quadrupedal gait of sea lions showed lower vertical displacements of the center of mass, and higher velocities compared with the terrestrial gait of phocids. Northern...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (8): jeb243766.
Published: 28 April 2022
... attributed. Summary: Harbour seals are vocal learners that can escape acoustic allometry despite complying with anatomical allometric constraints. Advanced neural control over their vocal organs may allow them to break acoustic allometry. Pinniped Harbour seal Vocal anatomy Acoustic...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (17): jeb227736.
Published: 11 September 2020
..., cardiorespiratory system and other attributes of diving physiology for pinnipeds and cetaceans to assess how physiological immaturity makes young marine mammals vulnerable to disturbance. Generally, the duration required for body oxygen stores to mature varies across species in accordance with the maternal...
Journal Articles
J Exp Biol (2019) 222 (12): jeb200246.
Published: 25 June 2019
... is not associated with oxidative stress in Weddell seals, suggesting that protection against diving-related increases in ROS generation is maintained into old age in these animals. Pinniped Aging Senescence Antioxidants Redox Ischemia–reperfusion Diving vertebrates employ a physiological diving...
Journal Articles
J Exp Biol (2019) 222 (5): jeb194985.
Published: 4 March 2019
... Biting Foraging Feeding Pinniped Kinematics Animals use diverse feeding strategies to capture and consume prey, and this diversity is shaped by the interplay of behavior, morphology and physiology ( Schoener, 1971 ; Schwenk, 2000 ). Species that use multiple feeding strategies often tailor...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (15): jeb179424.
Published: 6 August 2018
... strategy for these species, indicating that skull morphology alone does not capture the true diversity of feeding behaviors used by pinnipeds. The ability of all four species to use more than one feeding strategy is likely advantageous for foraging in spatially and temporally dynamic marine ecosystems...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (13): jeb178491.
Published: 9 July 2018
...-inflammatory properties in the serum of seals could protect these deep divers from negative downstream effects of lung collapse and bubble formation. Innate immunity Cytokine IL6 Endotoxin Pinniped Marine mammals such as pinnipeds (seals and sea lions) are highly specialized predators...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (Suppl_1): jeb161554.
Published: 7 March 2018
.... Mirounga angustirostris Milk Pinniped Insulin Lipolysis Periods of nutrient restriction are common for most free-ranging animals ( Secor and Carey, 2016 ; McCue, 2010 ). Some animals routinely fast (i.e. abstain from nutrient intake) as part of their life history and often display...
Journal Articles
J Exp Biol (2017) 220 (13): 2364–2371.
Published: 1 July 2017
... - 1484 . Miersch , L. , Hanke , W. , Wieskotten , S. , Hanke , F. D. , Oeffner , J. , Leder , A. , Brede , M. , Witte , M. and Dehnhardt , G. ( 2011 ). Flow sensing by pinniped whiskers . Philos. Trans. R. Soc. B Biol. Sci.   366 , 3077 - 3084 . 10.1098/rstb...
Journal Articles
J Exp Biol (2017) 220 (2): 174–185.
Published: 15 January 2017
...). Pinnipeds have so far been assumed to use vision or direct touch by means of the vibrissal system for benthic prey detection. For example, Lindt (1956) observed southern sea lions ( Otaria byronia ) searching in the benthos (not providing details of vibrissal use). Laboratory studies on sea lions...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (15): 2320–2330.
Published: 1 August 2016
... limit Diving Oxygen stores Pinniped South America Many marine top predators have undergone declines in their abundance, mostly as a consequence of human exploitation ( Casini et al., 2009 ; Heithaus et al., 2008 ). However, their ability to recover after cessation of exploitation varies...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (13): 2239–2243.
Published: 1 July 2014
...Kristina S. Ydesen; Danuta M. Wisniewska; Janni D. Hansen; Kristian Beedholm; Mark Johnson; Peter T. Madsen A key component in understanding the ecological role of marine mammal predators is to identify how and where they capture prey in time and space. Satellite and archival tags on pinnipeds...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (9): 1525–1534.
Published: 1 May 2014
... to understand the foraging behavior of pinnipeds . PhD dissertation , University of California , Santa Cruz, CA, USA . Lin   Y.-C. , Matsuura   D. T. , Whittow   G. C. ( 1972 ). Respiratory variation of heart rate in the California sea lion . Am. J. Physiol.   222 , 260 - 264...
Journal Articles
J Exp Biol (2012) 215 (15): 2637–2645.
Published: 1 August 2012
.... * Author for correspondence ( crocker@sonoma.edu ) 29 11 2011 5 4 2012 © 2012. 2012 sexual dimorphism fasting body composition field metabolic rate pinniped Energy used for reproduction comes from body reserves in ‘capital breeding’ animals. Body reserves available...
Journal Articles
J Exp Biol (2011) 214 (7): 1138–1147.
Published: 1 April 2011
... to pinnipeds, ASSRs elicited by single and multiple simultaneous tones were used to measure aerial hearing thresholds in several California sea lions ( Zalophus californianus ) and Steller sea lions ( Eumetopias jubatus ). There were no significant differences between thresholds measured using the single...
Journal Articles
J Exp Biol (2010) 213 (15): 2665–2672.
Published: 1 August 2010
... are discussed in the light of pinniped sensory biology and potential biomimetic applications. We thank Cansu Aslan for help with the head-mounted camera recordings. Andreas Stein (Institute of Human Genetics, Bonn, Germany) photographed Fig. 1 . This study was supported by grants of the German...
Includes: Supplementary data
Journal Articles
J Exp Biol (2007) 210 (2): 278–289.
Published: 15 January 2007
... stores aerobic dive limit pinniped Zalophus californianus For air-breathing vertebrates, an individual's ability to acquire food resources in the marine environment results from the interaction between an animal's behavior and its physiological capability, both of which may vary by age, body...
Journal Articles
J Exp Biol (2003) 206 (22): 4105–4111.
Published: 15 November 2003
...Rebecca R. Watson; Todd A. Miller; Randall W. Davis SUMMARY There is strong evidence that pinnipeds maintain a lipid-based, aerobic metabolism during diving. However, the few fiber-typing studies performed on pinniped skeletal muscles are not consistent with an aerobic physiological profile...