Weddell seal predators

Weddell seal (Leptonychotes weddellii) is the most southern mammal in the world.


Uncertainty exists over the importance of Antarctic toothfish (Dissostichus mawsoni) as prey of top predators in the Ross Sea.In this paper we assess relative weight given to direct, observational evidence of prey taken, as opposed to indirect evidence from scat and biochemical analysis, and conclude that toothfish are important to Weddell seals (Leptonychotes weddellii). If you had to choose only one word to describe the Weddell Seal, it would like be that they are cute. There predators are leopard seals and orcas. One of the most common seals you may see on a TravelWild Antarctica cruise, the Weddell seal (Leptonychotes weddelli) also has the distinction of being the most southern dwelling of all mammals—except for Homo sapiens on … The pattern was similar to that described by Ponganis et al. With their streamlined bodies, sensitive ears and strong flippers, seals can detect predators and swim at high speeds to escape an attack. However, as they stand over drift ice, they become more vulnerable to predators like leopard seals and orcas. 2003). Bulletin of the Scripps Institution of Oceanography, vol 28.University of California Press. A known hunting tactic of the Weddell seal is the use of backlighting to spot fish. The other three seals from this tribe are Ross seal, leopard seal and crabeater seal. Weddell seals have very few predators -- their main predators are orcas and leopard seals, the latter of which preys primarily on the pups and young of Weddell seals. For the Weddell seals in this study, feeding resulted in a 44.7% increase in metabolic rate over a wide range of dive durations and distances traveled . Weddell Seal – Leptonychotes weddellii Description. Weddell seals communicate with each other predators in the Ross Sea. However, weddell seal is the only species from the Antarctic tribe as well as its genus. Polar Biol 32:833–838. Name: These seals were named for the British Antarctic explorer James Weddell, who commanded British expeditions into the Weddell Sea (which is also named for him). They can grow up to 11 feet long and weigh up to 1,300 pounds. Weddell seals are often protected from predators during the winter since both the killer whale and leopard seal cannot travel great distances under the ice. However, others have plenty of large predators that they need to be worried about. Weddell seals are top predators in the Antarctic. In this paper we assess relative weight given to direct, observational evidence of prey taken, as opposed to indirect evidence from scat and biochemical analysis, and conclude that toothfish are important to Weddell seals (Leptonychotes weddellii). They live in remote habitats that also helps to protect them from predators. Many species of seals have no natural predators. Every day, an active weddell seal eats up to 110 pounds while a lazy seal only eats 22 pounds. - Castellini M, Davis R, Kooymann G (1992) Diving behavior and ecology of the Weddell seal: annual cycles.


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