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Ecology Reference Libraries

Page 8 of about 87 Articles
Red-footed tortoise
2006-12-26 16:07:31

Image Credit: Thinkstock.com The Red-footed tortoise, Geochelone carbonaria, known in Brazil as Jabuti, is a tortoise from South America. They live in tropical forests and grasslands in northern South America and some islands of the Caribbean. It draws its name from the red and orange scales visible on its limbs, as well as its head and tail. It is protected by CITES* as an endangered...

Laysan Duck
2006-03-20 10:57:08

The Laysan Duck (Anas laysanensis) is a dabbling duck which is native to Laysan Island, Hawaii. This duck is related to the Mallard, and has sometimes been considered to be an island race of that species. It has been determined, however, that it is not as closely related, but rather is a sister taxon to the Mallard and its closest relatives. Subfossil remains found on the major southeastern...

Rhinoceros Auklet
2006-02-23 14:21:10

The Rhinoceros Auklet (Cerorhinca monocerata) is a seabird considered by some to be a close relative of the puffin. It is the only member of the genus Cerorhinca. It ranges widely across the North Pacific feeding on small fish and nesting in mixed seabird colonies. Its name is derived from a horn-like extension of the beak. This horn is only present in breeding adults, and like the elaborate...

Whiskered Auklet
2006-02-23 14:02:07

The Whiskered Auklet (Aethia pygmaea) is a small seabird of the auk family. It has a more restricted range than other members of its genus, Aethia, living only around the Aleutian Islands and on some islands off Siberia (like Commander Islands). It also breeds on these islands. It is one of the smallest auks, only the closely related Least Auklet being smaller. Its name is derived from the long...

Ancient Murrelet
2006-02-23 13:34:27

The Ancient Murrelet (Synthliboramphus antiquus) is a bird of the auk family. It breeds in colonies principally on the Aleutian Islands and other Alaskan islands. They female lays one or two eggs directly amongst tree roots or in rock crevices. These small auks are nocturnal on the breeding grounds, presumably to reduce predation, and for the same reason the young are never fed at the nest,...

Black Guillemot
2006-02-23 12:20:33

The Black Guillemot or Tystie (Cepphus grille) is a medium-sized auk measuring 32-38 cm in length, and with a 49-58 cm wingspan. Adult birds have black bodies with a white wing patch, a thin dark bill and red legs and feet. They show white wing linings in flight. In winter, the upperparts are pale grey and the underparts are white. The wings remain black with the large white patch on the...

Great Auk
2006-02-23 12:15:07

At 30 inches (75 centimeters), the flightless Great Auk (Pinguinus impennis) was the largest of the auks. It was hunted for food, as well as for down for mattresses, from at least the 8th century. It is classified as the only species in the genus Pinguinus. It was also known as "garefowl", from the Old Norse geirfugl, or "penguin". Before hunted to extinction, the Great Auk could be found in...

Brnnichs Guillemot
2006-02-23 11:58:32

The Brünnich's Guillemot, or Thick-billed Murre (Uria lomvia) is a bird in the auk family that breeds on coasts and islands in the high Arctic of Europe, Asia and North America. It is one of the most numerous birds in the high arctic. These birds breed in large colonies located high atop coastal cliffs. They lay a single egg directly on a cliff ledge. They migrate south in winter into the...

Common Guillemot
2006-02-23 11:35:14

The Common Guillemot, also known as the Common Murre in North America (Uria aalge) is a large auk measuring 38-46 cm in length and with a wingspan of 61-73 cm. They are black on the head, back and wings, and have white underparts. They have a thin dark pointed bill and a small rounded dark tail. The face becomes white in winter. Western European birds of the race U. a. albionis are dark...

Black Noddy
2006-02-22 13:41:03

The Black Noddy is tern whose Latin name, Anous minutus, means "small, stupid bird," supposedly named because these birds would create nests on old sailing ships, where they provided a welcome change in diet for the sailors aboard. It is also called the White-capped Noddy. The nests of these birds are built on a level platform and are usually created in the branches of trees by a series of...

Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.