HYDRURGA LEPTONYX PDF

Learn more about the Leopard seal – with amazing Leopard seal videos, photos and facts on Arkive. Hydrurga (Blainville, ). Environment. marine. Original description. Not documented. Taxonomic citation. WoRMS (). Hydrurga leptonyx (Blainville. Leopard seals feed primarily on krill, using their lobodont teeth to filter these small crustaceans from the water. Although krill are their primary food source.

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Males are thought to be serially polygynous. However, a decline in antarctic pack ice will likely to be impact the species. The main image in the set is File: The overall body shape of leopard seals are long and slender, making it very agile in the water.

File:Antarctic SoundBrown Bluff–Leopard seal (Hydrurga leptonyx) jpg – Wikipedia

Oritsland, ; Rogers, Range lifespan Status: The scientific name of leopard seals, Hydrurga leptonyxhyvrurga translated means ‘slender-clawed water-worker’. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a now extinct synapsid ancestor; the fossil record does not distinguish these possibilities.

In male seals, vocalizing coincides with the timing hgdrurga their breeding season, which falls between November and the first week of January; captive female seals vocalize when they have elevated reproductive hormones.

Laws, ; Rogers, ; Siniff, Southern fulmar Fulmarus glacialoides. Ethiopian dwarf mongoose H. Birth of leopard seal pups generally occurs between late October and November, with newborn pups measuring on average cm in length.

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Description & Behavior

Synapomorphy of the Bilateria. This is a file from the Wikimedia Commons. Help us share leptoyx wonders of the natural world. Lindsey Paretti – Blood Island. The male leopard seal does not participate in the care taking of the pup, and goes back to its solitary lifestyle after the breeding season.

When hunting penguins, the leopard seal patrols the waters leponyx the edges of the ice, almost completely submerged, waiting for the birds to enter the ocean. Owing to its widespread occurrence and large population size estimated at, individuals inthe leopard seal is currently classified as Least Concern on the IUCN Red List.

Leopard seal

This trait of vocalizing underwater for long periods has made them available to acoustic surveys, allowing researchers to gather most of what is known about them. Although krill are their primary food source, leopard seals are also aggressive apex predators eating penguinsyoung crabeater sealsand squid.

They also have a reinforced trachea to prevent collapse at great depth pressures. It is, however, known that males do not provide any post-fertilization parental investment once they have mated with a female. Adults have well developed canine teeth, and ,eptonyx tubercles or lobes on the sides of their jaws that allow them to filter krill from the water.

This file contains additional information, lfptonyx added from the digital camera or scanner used to create or digitize it. Marine Ecology Progress Series. This species is featured in: They use their front flippers similarly to sea lions otariids [33] and leopard seal females are larger than males.

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From a conservation standpoint, the only known predators of the leopard seals are killer whales and sharks.

A reduction in the area of pack-ice hydrurgs with global warming would not only affect the amount of habitat available for pupping and resting, but it is likely to also affect the availability of prey species 1.

Unlike other seal species that swim by moving their hind limbs side to side, leopard seals swim gracefully using long, powerful, simultaneous strokes of the forelimbs simultaneously. Males can grow up to 3 meters in length and weigh approximately kg. Adults have a silvery-grey to black coat, with variable dark spots leptonyd a paler underside 4 7.

Angolan slender mongoose G. Antarctic krill Euphausia superbasouthern leptontx seal Mirounga leonina pups and seabirds other than penguins have also been taken as prey.

ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Australian Antarctic Division September, http: By using this site, you agree to the Terms of Use and Privacy Policy.