Wednesday, November 27, 2019
Fascinating Black-Footed Ferret Facts
Fascinating Black-Footed Ferret Facts Black-footed ferrets are easily recognized by their distinctive masked faces and resemblance to pet ferrets. Native to North America, the black-footed ferret is a rare example of an animal that went extinct in the wild, but survived in captivity and was ultimately released again. Fast Facts: Black-Footed Ferret Scientific Name: Mustela nigripesCommon Names: Black-footed ferret, American polecat, prairie dog hunterBasic Animal Group: MammalSize: 20 inch body; 4-5 inch tailWeight: 1.4-3.1 poundsLifespan: 1 yearDiet: CarnivoreHabitat: Central North AmericaPopulation: 200Conservation Status: Endangered (formerly extinct in the wild) Description Black-footed ferrets resemble domestic ferrets as well as wild polecats and weasels. The slender animal has buff or tan fur, with black feet, tail tip, nose, and face mask. It has triangular ears, few whiskers, a short muzzle, and sharp claws. Its body ranges from 50 to 53 cm (19 to 21 in), with a 11 to 13 cm (4.5 to 5.0 in) tail, and its weight ranges from 650 to 1,400 g (1.4 to 3.1 lb). Males are about 10 percent larger than females. Habitat and Distribution Historically, the black-footed ferret roamed across the prairies and steppes of central North America, from Texas to Alberta and Saskatchewan. Their range correlated with that of prairie dogs, since ferrets eat the rodents and use their burrows. After their extinction in the wild, captive-bred black-footed ferrets were reintroduced across the range. As of 2007, the only surviving wild population is in the Big Horn Basin near Meeteetse, Wyoming. Diet Around 90 percent of the black-footed ferrets diet consists of prairie dogs (genusà Cynomys), but in regions where prairie dogs hibernate for winter, ferrets will eat mice, voles, ground squirrels, rabbits, and birds. Black-footed ferrets get water by consuming their prey. Ferrets are preyed upon by eagles, owls, hawks, rattlesnakes, coyotes, badgers, and bobcats. Black-footed ferrets eat prairie dogs. USFWS Mountain-Prairie Behavior Except when mating or raising young, black-footed ferrets are solitary, nocturnal hunters. Ferrets use prairie dog burrows to sleep, catch their food, and raise their young. Black-footed ferrets are vocal animals. A loud chatter indicates alarm, a hiss shows fear, a females whimper calls her young, and a males chortle signals courtship. Like domestic ferrets, they perform the weasel war dance, consisting of a series of hops, often accompanied by a clucking sound (dooking), arched back, and frizzed tail. In the wild, the ferrets may perform the dance to disorient prey as well as to indicate enjoyment. The weasel war dance or dooking may be associated with hunting or with play. Tara Gregg / EyeEm / Getty Images Reproduction and Offspring Black-footed ferrets mate in February and March. Gestation lasts 42 to 45 days, resulting in the birth of one to five kits in May and June. The kits are born in prairie dog burrows and dont emerge until they are six weeks old. Initially, the kits are blind and have sparse white fur. Their eyes open at 35 days of age and dark markings appear at three weeks of age. When they are a few months old, the kits move to new burrows. Ferrets are sexually mature at one year of age, but reach peak reproductive maturity at age 3 or 4. Unfortunately, wild black-footed ferrets typically only live one year, although they can reach 5 years of age in the wild and 8 years of age in captivity. Conservation Status The black-footed ferret is an endangered species. It was extinct in the wild in 1996, but downgraded to endangered in 2008 thanks to a captive breeding and release program. Initially, the species was threatened by the fur trade, but it went extinct when prairie dog populations declined due to pest control measures and conversion of habitat to cropland. Sylvatic plague, canine distemper, and inbreeding finished off the last of the wild ferrets. The U.S. Fish and Wildlife Service artificially inseminated captive females, bred ferrets in zoos, and released them in the wild. The black-footed ferret is considered a conservation success story, but the animal faces an uncertain future. Scientists estimate only about 1,200 wild black-footed ferrets (200 mature adults) remained in 2013. Most reintroduced ferrets died from ongoing prairie dog poisoning programs or from disease. While not hunted today, ferrets still die from traps set for coyotes and mink. Humans pose a risk by killing prairie dogs directly or by collapsing burrows from petroleum industry activities. Power lines lead to prairie dog and ferret deaths, as raptors perch on them for easy hunting. At present, the average lifespan of a wild ferret is about the same as its breeding age, plus juvenile mortality is very high for those animals that do manage to reproduce. Black-Footed Ferret vs. Pet Ferret Although some domestic ferrets resemble black-footed ferrets, the two belong to separate species. Pet ferrets are descendants of the European ferret, Mustela putorius. While black-footed ferrets are always tan, with black masks, feet, tail tips, and noses, domestic ferrets come in a wide variety of colors and usually have a pink nose. Domestication has produced other changes in pet ferrets. While black-footed ferrets are solitary, nocturnal animals, domestic ferrets will socialize with each other and adjust to human schedules. Domestic ferrets have lost the instincts needed to hunt and build colonies in the wild, so they can only live in captivity. Sources Feldhamer, George A.; Thompson, Bruce Carlyle; Chapman, Joseph A. Wild mammals of North America: biology, management, and conservation. JHU Press, 2003. ISBN 0-8018-7416-5.Hillman, Conrad N. and Tim W. Clark. Mustela nigripes. Mammalian Species. 126 (126): 1ââ¬â3, 1980. doi:10.2307/3503892McLendon, Russell. Rare U.S. ferret marks 30-year comeback. Mother Nature Network, September 30, 2011.Owen, Pamela R. and Christopher J. Bell. Fossils, diet, and conservation of black-footed ferrets Mustela nigripes.à Journal of Mammalogy.à 81à (2): 422, 2000.Stromberg, Mark R.; Rayburn, R. Lee; Clark, Tim W.. Black-footed ferret prey requirements: an energy balance estimate. Journal of Wildlife Management. 47 (1): 67ââ¬â73, 1983. doi:10.2307/3808053
Saturday, November 23, 2019
Bicycle Theif essays
Bicycle Theif essays Another fine example of neorealism is The Bicycle Thief (1948), written by Cesare Zavattini and directed by Vittorio De Sica. The narrative of this film unfolds in post-W.W.II times. The film is a portrait of the post-war Italian disadvantaged class (the majority) in their search for self-respect. It is a time of struggle for the Italian people, amplified by a shortage of employment and lack of social services. In the first scenes of the film, these conditions are evident as Antonio Ricci (Lamberto Maggiorami) meets his spouse Maria (Lianalla Carell) on his way back home. We see the men arguing at the employment office as the women argue about the shortage of water. Although the directors pessimism drives the plot, it is ultimately the clash with human optimism which gives this film affective power. Antonios new job can bring his family new hopes and happiness, which are drastically destroyed when his bicycle is stolen. The banal circumstances are brought to life when it is realized that a modest bicycle is such an important element in determining the future survival of the Ricci family. Human optimism is there, beginning with Antonios excitement when he gets his bike from the pawn shop, and the next morning when the family joyfully interacts before setting out for work. These scenes contain the promises that a modest job can bring and the dignity and pride of being able to once more function within Italian society. The embodiment of this self-respect is shown when Antonio and his son Bruno (Enzo Staicca) both smile at Maria as they leave home. Self-respect and all the related values such as pride, dignity, modesty and honor are very important in Italian society. Witness Bruno, whom at a young age, works full time at a gas station. Brunos contributions to the Ricci family make him a man and strip him of his innocence. Being able to work is a ...
Thursday, November 21, 2019
Movement of goods and services across borders, trade blocks (within Essay
Movement of goods and services across borders, trade blocks (within Europe) - Essay Example The aim of the European Union was to develop a single market in Europe and enhance a free movement of goods and services from one country to another within the Union. The European Union also plays a significant role in enacting laws regarding home affairs and justice, maintaining common trade policies, and allowing free movement of people and capital. The internal goods and services market in Europe has become an essential part of EUââ¬â¢s success, and it is the main catalyst for economic growth in the region. Through the European Union, most of the barriers to free movement of goods and services have been eliminated. According to the Treaty on the Functioning of the European Union (TFEU), goods and services are defined as anything that is capable of forming the subject of commercial transaction. They include anything that has economic value and can be valued in terms of money. Things such as artworks, coins no longer in circulation, electricity, natural gas, bank notes and bearer notes have economic value that can be measured in monetary terms. Therefore, they can all be classified as goods. However, donation in kind and television signals is not considered as goods. In terms of distinction between goods and services, goods are tangible while services are intangible. For example, fishes are goods while fishing rights are serv ices. The free movement of goods and services is usually affected by barriers to trade. Article 34 of the Treaty on the Functioning of European Union (TFEU) provides guidelines on the obstacles to trade between member states. The article is used as a right of defense against measures developed on the national level to create unjustified barriers to entry or exit of goods and services to and out of member states (Woods, 2004). Activity of the state that may infringe section 34 of TFEU leads to prohibited obstacle to the free movement of goods and services. An administrative practice on the part of member
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