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Emperor Goose
The emperor goose (''Anser canagicus''), also known as the beach goose or the painted goose, is a waterfowl species in the family Anatidae, which contains the ducks, geese, and swans. In summer, the emperor goose is found in remote coastal areas near the Bering Sea in arctic and sub-arctic Alaska and the Russian Far East, where it breeds in Monogamy in animals, monogamous pairs. It bird migration, migrates south to winter in ice-free mudflats and coasts in Alaska, mostly the Aleutian Islands, and Canada's British Columbia, rarely reaching the contiguous United States. Listed as near threatened by the International Union for Conservation of Nature, the species' population is declining due to threats such as pollution, hunting, and climate change. Taxonomy The emperor goose was described in 1802 as ''Anas canagica''. Its Locality (biology), type locality is Kanaga Island, which is located in the Aleutian Islands, Alaska. The species has sometimes been classified in the genus ''Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kigigak Island
Kigigak Island is an island located near the northwest corner of Nelson Island (Alaska), Nelson Island at the mouth of Ninglick River, 110 miles west of Bethel, Alaska, Bethel in the Yukon-Kuskokwim Delta. It is 5 miles across. The island has a land area of 31.839 km2 (12.293 sq mi) and was unpopulated at the United States Census, 2000, 2000 census. It is part of the Bethel Census Area, Alaska, Bethel Census Area. The nearest populated communities are Newtok, Alaska, Newtok and Tununak, Alaska, Tununak. ReferencesKigigak Island: Block 1004, Census Tract 1, Bethel Census Area, AlaskaUnited States Census Bureau, 2000 census External links Islands of Bethel Census Area, Alaska Islands of Alaska Islands of Unorganized Borough, Alaska * {{BethelAK-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chen Canagica, Yukon Delta NWR 3
Chen or Ch'en may refer to: People *Chen (surname) (陳 / 陈), a common Chinese surname *Chen (singer) (born 1992), member of the South Korean-Chinese boy band EXO * Chen Chen (poet) (born 1989), Chinese-American poet * (), a Hebrew first name or surname: ** Hen Lippin (born 1965), former Israeli basketball player ** Chen Kugel (born 1962), Israeli pathologist who did an autopsy on Yahya Sinwar **Chen Reiss (born 1979), Israeli operatic soprano ** Ronen Chen (born 1965), Israeli fashion designer Historical states *Chen (state) (c. 1045 BC–479 BC), a Zhou dynasty state in present-day Anhui and Henan *Chen (Thessaly), a city-state in ancient Thessaly, Greece * Chen Commandery, a commandery in China from Han dynasty to Sui dynasty *Chen dynasty (557–589), a Chinese southern dynasty during the Northern and Southern dynasties period Businesses and organizations * Council for Higher Education in Newark (CHEN) * Chen (), acronym in Hebrew for the Women's Army Corps (, ) a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and the proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine biology, marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater mollusc, freshwater and even terrestrial molluscs, terrestrial species. The phylum is typically divided into 7 or 8 taxonomy (biology), taxonomic class (biology), classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurobiology, neurologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed by a calcified exoskeleton consisting of a hinged pair of half-bivalve shell, shells known as valve (mollusc), valves. As a group, bivalves have no head and lack some typical molluscan organs such as the radula and the odontophore. Their gills have evolved into ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Common bivalves include clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. Majority of the class are benthic filter feeders that bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Brant
The brant or brent goose (''Branta bernicla'') is a small goose of the genus ''Branta''. There are three subspecies, all of which winter along temperate-zone sea-coasts and breed on the high-Arctic tundra. The Brent oilfield was named after the species. Taxonomy The brant was Species description, formally described in 1758 by the Swedish naturalist Carl Linnaeus in the 10th edition of Systema Naturae, tenth edition of his ''Systema Naturae'' under the binomial nomenclature, binomial name ''Anas bernicla''. Linnaeus specified the type locality (biology), type locality as Europe but in 1761 restricted it to Sweden. The brant is now one of six species placed in the genus ''Branta'' that was introduced in 1769 by the Austrian naturalist Giovanni Antonio Scopoli. The genus name ''Branta'' is a Latinised form of Old Norse ''brandgás'', "burnt (black) goose". The specific epithet ''bernicla'' is Medieval Latin for barnacle. The brant and the similar barnacle goose were previously c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emperor Goose In Flight
The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules in her own right and name (empress regnant or ''suo jure''). Emperors are generally recognized to be of the highest monarchic honour and rank, surpassing king. In Europe, the title of Emperor has been used since the Middle Ages, considered in those times equal or almost equal in dignity to that of Pope due to the latter's position as visible head of the Church and spiritual leader of the Catholic part of Western Europe. The emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor". Both emperors and kings are monarchs or sovereigns, both emperor and empress are considered monarchical titles. In as much as there is a strict definition of emperor, it is that an emperor has no relations imply ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precociality
Precocial species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial species are those in which the young are underdeveloped at the time of birth, but with the aid of their parents mature after birth. These categories form a continuum, without distinct gaps between them. In fish, this often refers to the presence or absence of a stomach: precocial larvae have one at the onset of first feeding whereas altricial fish do not. Depending on the species, the larvae may develop a functional stomach during metamorphosis (gastric) or remain stomachless (agastric). Precociality Precocial young have open eyes, hair or down, large brains, and are immediately mobile and somewhat able to flee from or defend themselves against predators. For example, with ground-nesting birds such as ducks or turkeys, the young are r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beardsley Zoo
Connecticut's Beardsley Zoo, located in Bridgeport, Connecticut, is the only Association of Zoos and Aquariums (AZA)–accredited zoo in the state of Connecticut. The zoo includes one of the few carousels in the state. The zoo has around 500 animals, from over 100 species, and welcomes about 280,000 visitors a year. History The Park In 1878, James W. Beardsley, a wealthy farmer, donated over of hilly, rural land bordering on the Pequonnock River, with a distant view of Long Island Sound, to the city of Bridgeport on the condition that "the city shall accept and keep the same forever as a public park". In 1881, the city contracted Frederick Law Olmsted, famous for creating New York City's Central Park, to create a design for Beardsley Park. Olmsted described the existing land as "pastoral, sylvan and idyllic" and, in 1884, delivered his plan for a simple, rural park for the residents to enjoy:[The land donated by Beardsley] is thoroughly rural and just such a countryside as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg Incubation
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg. Multiple and various factors are vital to the incubation of various species of animal. In many species of reptile for example, no fixed temperature is necessary, but the actual temperature determines the sex ratio of the offspring. In birds, the sex of offspring is genetically determined, but in many species a constant and particular temperature is necessary for successful incubation. Especially in poultry, the act of sitting on eggs to incubate them is called brooding. The action or behavioral tendency to sit on a clutch of eggs is also called broodiness, and most egg-laying breeds of poultry have had this behavior selectively bred out of them to increase production. Avian incubation A wide range o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monogamy In Animals
Some animal species have a monogamous mating system, in which pairs bond to raise offspring. This is associated, usually implicitly, with sexual monogamy. Monogamous mating Monogamy is defined as a pair bond between two adult animals of the same species. This pair may cohabitate in an area or territory for some duration of time, and in some cases may copulate and reproduce with only each other. Monogamy may either be short-term, lasting one to a few seasons or long-term, lasting many seasons and in extreme cases, life-long. Monogamy can be partitioned into two categories, social monogamy and genetic monogamy which may occur together in some combination, or completely independently of one another.Ophir, Alexander G., Phelps, Steven M., Sorin, Anna Bess & O. Wolff, J. (2008)Social but not genetic monogamy is associated with greater breeding success in prairie voles/ref> As an example, in the cichlid species '' Variabilichromis moorii'', a monogamous pair will care for eggs and y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chukchi Peninsula
The Chukchi Peninsula (also Chukotka Peninsula or Chukotski Peninsula; , ''Chukotskiy poluostrov'', short form , ''Chukotka''), at about 66° N 172° W, is the easternmost peninsula of Asia. Its eastern end is at Cape Dezhnev near the village of Uelen. The Chukotka Mountains are located in the central/western part of the peninsula, which is bounded by the Chukchi Sea to the north, the Bering Sea to the south, and the Bering Strait to the east, where at its easternmost point it is only about from Seward Peninsula in Alaska; this is the smallest distance between the land masses of Eurasia and North America. The peninsula is part of Chukotka Autonomous Okrug of Russia. Accessed September 2010. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
