Kamis, 21 Mei 2015

Adelie penguins classification and evolution


Adelie penguin is the smallest and most common species of penguins in the Southern Ocean and is one of only two species of penguins in the Antarctic continent (the other is the much larger Emperor penguin) found. The Adelie Penguin in 1840 by French explorer Jules Dumont d'Urville, who named the penguin by his wife, Adelia name. Adelie penguins are well to life in Antarctica since adapted these migratory birds winter in the northern ice bag before returning south to the coast of Antarctica to the summer months.


Adelie Penguin Anatomy and appearance

The Adelie Penguin is one of the most easily recognizable species penguin with a blue-black back and very white chest and abdomen. The head and beak Adelie penguin are both black, with a distinctive white ring around each eye. Strong, pink feet Adelie penguin are hard and bumpy with nails that will not only help Adelie penguins to climb the rocks to reach their nesting sites but also help push along, if changed (paddle) along the ice. Adelie penguins and webbed, with their little flippers to propel next to swimming in cold water.


Adelie Penguin Distribution and habitat

The Adelie Penguin is one of the southernmost world's birds, such as those found along the coast of Antarctica and the surrounding islands. During the winter months, Adelie penguins migrate north, home to large ice shelves and better access to food. During the summer months, Adelie penguins back to the south, where. On the beaches of the coast in search of ice-free ground on the rocky slopes, where they build their nests head More than half a million Adelie penguins have made through the activities of the four monstrous volcanoes in the Ross Sea is one of colonies of larger animals in the world in Ross Iceland, an island.


Adelie penguin behavior and lifestyle

Like all species of penguin Adelie penguin it is a very social animal, gathering in large groups known as colonies that many thousands of people Number of Penguin. Although Adelie penguins are not known for being terribly territorial, it is not uncommon for adults to be aggressive at nesting sites, and have even been known to steal the stones from their neighbors' nests. Adelie penguins are also known to hunt in packs, as it is believed that the risk of being eaten by hungry predators to reduce. Adelie penguins are constantly interacting with each other, they thought with body language and certain eye movements being the most common forms of communication.


Adelie penguin breeding and life cycles

Adelie penguins back to their breeding grounds in the Antarctic summer months of November and December. Her soft feet are good for walking on land to make the trek to make it much easier for nesting penguins fasts developed during this time. Adelie penguin couples mate for life built in large colonies, with female lays two eggs a few days apart in a nest of stones. Both male and female take turns incubating their eggs, while the other will feed for up to 10 days at a time. Adelie penguin chicks with an egg tooth. A knock at the top of their beaks, which helps it to hatch Once hatched, the parents still take turns caring for their young, while the other will pick up the food. After a month, the chicks gather in groups called crèches and are able to fend for themselves in the sea when they are between 2 and 3 months old.

Adelie penguin diet and prey

Adelie penguins are strong and able swimmer, get all the seafood. These penguins feed on krill, first, that can be found throughout the Southern Ocean, as well as mollusks, squid and small fish. The report on the fossilized egg shells in the colonies of Adelie penguins shows accumulated over the past 38,000 years a sudden change of a diet based on fish krill, which began two hundred years ago. This is believed to be due to reduced Antarctic fur seal seal in 1700 and baleen whales in the late twentieth century. The reduced competition from these predators and has been used in the situation, as a source of light food abundance of krill, the Adelie penguins are now.

Adelie Penguin Predators and threats

Adelie penguins have no land predators adults due to the intransigent conditions that inhabit it. In water, however, the greatest threat to Adelie penguins is the Leopard Seal, which is one of the most southern species of seals and a dominant predator in the Southern Ocean. These penguins have learned to avoid these predators swimming in large groups and not walk the tightrope. The orca whale is the other main enemy of Adelie penguins, but usually hunt larger species of penguins north. Antarctic skuas are to take advantage of the Adelie penguin eggs known if unattended, along with chickens have been removed from a group.

Adelie Penguin Interesting Facts and Features

Adelie penguins inhabit one of the coldest environments on Earth and thus a thick layer of fat under the skin that helps to keep warm. To help its springs to isolate and waterproof coating for extra protection. Adelie penguin is a very efficient hunter and should be able to eat up to 2 kg of food per day, meant a breeding colony consume about 9,000 tons of food for more than 24 hours. Fins Adelie penguins make great for swimming and diving for food at a depth of 175 meters. Adelie penguins have no teeth as such, but have spiked in the form of teeth on the tongue and roof of the mouth. These spikes do not exist for chewing, but help the penguin to slippery prey to swallow.

Adelie penguins relationship with people

A visit to the colonies of Adelie penguins have been long admired in the program for tourists in Antarctica, the nest in the large number of them on the beaches, and hunting in the surrounding waters. This has meant that Adelie penguins are one of the most of all known species of penguins today. Early explorers but also hunted penguins, both for their meat and their eggs to survive in such uncompromising conditions.

Protection status of Adelie penguins and today life

Although it limited to the life of the coast of Antarctica Adelie one of the most common and widespread in the Southern Hemisphere penguins. Found more than 2.5 million breeding pairs in all of Southern Antarctica, Adelie penguin is well suited polar habitat. Scientists have also been known to use patterns nesting Adelie penguin as indicators of climate change, to remember him. Being able to nest on the beaches that were previously covered by ice Adelie penguin appears to be safe.

Adelie Penguin Facts

Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Sphenisciformes
Family: Spheniscidae
Genre: Pygoscelis
Scientific name: Pygoscelis
Common name: Adelie penguin
Group: Birds
Number of species: 1
Location: Coast of Antarctica
Habitat: Antarctic land and sea
Color: Black with white chest
Skin type: springs
Size (H): 40cm - 75cm (16 inches - 30 inches)
Wingspan: 35cm - 70cm (14 inches - 27.5in)
Weight: 3 kg - 6 kg (€ 7 - £ 13)
Top speed: 72kph (45 mph)
Diet: Carnivore
Prey: krill, fish, squid
Predators: Leopard Seal, Skua Gull, Orca
Lifestyle: Day
Group behavior: Colony
Life: 10 - 20 years
Age of sexual maturity 2 - 3 years
Incubation period: 2 months
Average clutch size: 2
Young names: Chicks
Fledging age: 90 Days
Conservation Status: Endangered
Estimated Population: 5000000
Greater threat: The rapid melting of ice
The most striking feature: small white circle around each eye
Fun fact: Eat up to 2 kg of food per day!
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