Leptonychotes weddellii
Sex related differences in the postmolt distribution of Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea
... (Leptonychotes weddellii) is not dramatically sexually dimorphic, with some studies finding no difference in size at all (Staniland 2005) and others find- ing females to be slightly larger (Bryden et ...
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Reproductive Strategies of Adult Female Weddell Seals (Leptonychotes weddellii) and Their Implications for Pup Survival
... (Leptonychotes weddellii), to gain a better understanding of reproductive strategies of an upper trophic level predator that must cope with unpredictable food availability in an extreme and highly variable ...
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An assessment of the audibility of sound from human transport by breeding Weddell seals (Leptonychotes weddellii)
... (Leptonychotes weddellii) in particular can be exposed to anthropogenic noise because they live under, and breed on, the fast ice on which humans ...
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Muscle temperature and swim velocity profiles during diving in a Weddell seal, Leptonychotes weddellii
... Aortic temperature reductions of 1–3˚C have previously been recorded during or after extended dives in Weddell seals, Leptonychotes weddellii (Kooyman et al. 1980; Hill et al. 1987). Such changes appeared ...
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Bimodal winter haul out patterns of adult Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea
... The Southern Ocean is a dynamic and highly productive marine ecosystem that supports three pinniped species that remain within the pack and fast ice zones year-round (crabeater seal [Lobodon carcinophagus], leopard seal ...
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Diving into old age: muscular senescence in a large bodied, long lived mammal, the Weddell seal (Leptonychotes weddellii)
... To determine if an aspect of organismal senescence occurs in wild marine mammals, we examined the pattern of skeletal muscle aging contractile and connective tissue components of longiss[r] ...
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Measuring the effect of human activity on Weddell seals (Leptonychotes weddellii) in Antarctica
... during rest or travel and, further, to determine whether heart rate changed in response to pedestrian approaches; iv to determine the immediate behavioural response of lactating Weddell [r] ...
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The cost of foraging by a marine predator, the Weddell seal Leptonychotes weddellii: pricing by the stroke
... Following a dive, oxygen consumption was monitored continuously, and diving metabolism calculated from the recovery oxygen consumed in excess of resting rates for either post-absorptive [r] ...
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Reproductive Strategies of Adult Female Weddell Seals (Leptonychotes weddellii) and Their Implications for Pup Survival
... It appears that although larger females cannot increase energy transfer by modifying milk composition, they do have the physiological capabilities for a longer lactation and increased en[r] ...
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Aspects of the ecology of Weddell seals Leptonychotes weddellii along the Mawson Coastline, East Antarctica
... As well as being sighted within the transects during surveys 2 and 3, crabeater seals were also regularly sighted at other haul-out sites in the Macey area from late August, usually in c[r] ...
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Brucella antibody seroprevalence in Antarctic seals (Arctocephalus gazella, Leptonychotes weddellii and Mirounga leonina)
... The Antarctic continent is one of the most remote areas of the world and contains up to 50% or more of the world’s pinnipeds, with 6 different species: crabeater seal Lobodon carcinophagus, Antarctic fur seal ...
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Factors affecting stroking patterns and body angle in diving Weddell seals under natural conditions
... seals Leptonychotes weddellii at their own breeding sites using small data loggers that can record swimming speed, depth, two-dimensional (2- D) accelerations (flipper movements and body angle) and ...
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The ontogeny of aerobic and diving capacity in the skeletal muscles of Weddell seals
... Twenty-four newborn Weddell seal pups (Leptonychotes weddellii L.) (age 3–5 weeks, mean mass 75±3 kg) were captured over three field seasons (October to December of 2002, 2005 and 2006) using mild physical ...
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Studies on the Weddell seal (Leptonychotes weddelli Lesson) in McMurdo Sound, Antarctica
... that for asbestos Bryden, 1964 , and secondly as a possible metabolic fuel supplementing glycogen from the livero Co Liver The average proportion of liver weight to total bled body weigh[r] ...
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Population ecology of the Weddell seal (Leptonychotes weddelli) in McMurdo Sound, Antarctica
... Study Area Stranded l10raines Harble Point Cape Hallet Cape Crozier Franklin Island Cape Bird "\lhi te Island.. Study Area Stranded Horaines l·larble Point Cape Bird .Jhi te Island TOTAL[r] ...
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Articles
... Syngonanthus weddellii var. gracilis Moldenke (1973) was described very briefly based on a single collection. A careful analysis reveals that this variety has dimerous flowers, free petals of the pistillate flower ...
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Physiological control of diving behaviour in the Weddell seal Leptonychotes weddelli: a model based on cardiorespiratory control theory
... It is often assumed that asphyxia develops with time under water and the diving animal remains submerged until a strong drive to breathe or some other stimulus triggers it to return to the surface (Castellini and ...
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