Showing posts with label Vulnerable. Show all posts
Showing posts with label Vulnerable. Show all posts
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Humboldt Penguin


The Humboldt penguin is a medium-sized species of penguin that is found breeding on the coasts of South America. The Humboldt penguin is similar in appearance to and closely related to other more northern penguin species including the African penguin, the magellanic penguin and the Galapagos penguin. The Humboldt penguin is one of the most northern-dwelling penguin species as it is found natively breeding on the coastlines of Peru and Chile. The Humboldt penguin is named after the cold water current that it spends most of it's time swimming in, which is itself named after the explorer, Alexander von Humboldt.


Humboldt penguins are medium-sized penguins that can grow to heights of 70 cm or more. Also the Humboldt penguin is undoubtedly very similar in appearance a number of other penguin species, the Humboldt penguin can be easily identified by the pink, fleshy base at the end of their bills. All penguins are fantastic swimmers and the Humboldt penguin is no exception. Humboldt penguins use their powerful flippers and streamlined bodies, aided by their webbed feet to soar through the water. Humboldt penguin populations have been severely affected in their native regions due to increasing commercial fishing which leaves less food for the penguins to eat.


The Humboldt penguin is a carnivorous animal, that like all other penguin species, survives on a diet that is only comprised of marine animals. Krill and small crustaceans make up the bulk of the Humboldt penguin's diet along with larger organisms including squid and various species of fish. Humboldt penguins can be at sea for days at a time whilst hunting and catch their food by diving deep into the water for minutes at a time. The Humboldt penguin has few predators on land, the main ones being large snakes and sea-birds that hunt their eggs.


Humboldt penguins nest on beaches and rocky islands along the South American coast, where their range in Chile overlaps that of the closely related magellanic penguin (these sites are known as rookeries). The female Humboldt penguin lays two eggs which are incubated for just over a month and usually fledge (leave the nest) when they are between 2 and 3 months old. Today, the Humboldt penguin populations throughout the Pacific Ocean have been drastically declining over the past few years, with human interference (mainly habitat loss and over-fishing) being the main cause. Source
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Kowari


Kowari also known as the Brush-tailed Marsupial Rat, Kayer Rat, Byrne's Crest-tailed Marsupial Rat, Bushy-tailed Marsupial Rat and Kawiri, is a small carnivorous marsupial native to the dry grasslands and deserts of central Australia. It is monotypical of its genus.  The Kowari is a ground dwelling carnivorous marsupial, living either in its own dug burrow or in the hole of another mammal.


Sexual maturity in a Kowari is reached in the first year of life but breeding seldom takes place until the second year between May and December. The female Kowari (who may produce 2 litters per season) carries up to six young on her teats for about eight weeks and suckles them in a nest (of soft materials) for a further eight weeks. Young Kowaris may ride on their mothers side or back (2-3 months old). The young become independant 100 days after birth.


The Kowari is well adapted to life in the central desert and does not need to drink, as it derieves needed moisture from its food. When cold and food supply is scarce, the Kowari may become torpid (a form of hibernation). By day, it sleeps in a burrow (sometimes can be seen "Sunbaking"), and at night it is a fierce predator on insects, the larger arthropods, and small vertebrates (eg birds, rodents, lizards) The Kowari can stalk like a cat and uses a direct neck bite when killing large prey.


Its range seems to have contracted considerably in recent decades but it is not clear whether this is an indication of its impending endangerment or of cyclical changes in the density of an opportunistic species, self regulating its numbers to survive in a harsh enviroment. So at this stage its Status is listed as Vulnerable Distribution: 100,000-300,000 square kilometers. Source
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