Rats are various medium-sized, long-tailed rodents. Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus Rattus. Other rat genera include Neotoma, Bandicota and Dipodomys.
The black rat, also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus Rattus, in the subfamily Murinae. It likely originated in the Indian subcontinent, but is now found worldwide.
The brown rat, also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 and 500 g. Thought to have originated in northern China and neighbouring areas, this rodent has now spread to all continents except Antarctica, and is the dominant rat in Europe and much of North America. With rare exceptions, the brown rat lives wherever humans live, particularly in urban areas.
Anacapa Island is a small volcanic island located about 11 miles off Port Hueneme in Ventura County, California. The island is composed of a series of narrow islets 6 mi (10 km) long, oriented generally east–west and 5 mi (8 km) east of Santa Cruz Island. The three main islets, East, Middle and West Anacapa, have precipitous cliffs, dropping off steeply into the sea.
The Virgin Islands National Park is an American national park preserving about 60% of the land area of Saint John in the United States Virgin Islands, as well as more than 5,500 acres of adjacent ocean, and nearly all of Hassel Island, just off the Charlotte Amalie, Saint Thomas harbor.
The Polynesian rat, Pacific rat or little rat, known to the Māori as kiore, is the third most widespread species of rat in the world behind the brown rat and black rat. Contrary to its vernacular name, the Polynesian rat originated in Southeast Asia, and like its relatives has become widespread, migrating to most of Polynesia, including New Zealand, Easter Island, and Hawaii. It shares high adaptability with other rat species extending to many environments, from grasslands to forests. It is also closely associated with humans, who provide easy access to food. It has become a major pest in most areas of its distribution.
Jost Van Dyke is the smallest of the four main islands of the British Virgin Islands, measuring roughly 8 square kilometres. It rests in the northern portion of the archipelago of the Virgin Islands, located in the Atlantic Ocean and Caribbean Sea. Jost Van Dyke lies about 8 km (5 mi) to the northwest of Tortola and 8 km (5 mi) to the north of Saint John, U.S. Virgin Islands. Little Jost Van Dyke lies off its eastern end.
An ecological island is a term used in New Zealand, and increasingly in Australia, to refer to an area of land isolated by natural or artificial means from the surrounding land, where a natural micro-habitat exists amidst a larger differing ecosystem. In New Zealand the term is used to refer to one of several types of nationally protected areas.
Gugh could be described as the sixth inhabited island of the Isles of Scilly, but is usually included with St Agnes with which it is joined by a sandy tombolo known as "The Bar" when exposed at low tide. The island is only about 1 km (0.62 mi) long and about 0.5 km (0.31 mi) wide, with the highest point, Kittern Hill at 34 m (112 ft). The geology consists of Hercynian granite with shallow podzolic soils on the higher ground and deeper sandy soils on the lower ground. The former Gugh farm is just north of the neck across the middle of the island between the two hills. The two houses were designed and built in the 1920s by Charles Hamlet Cooper.
Green Cay is an uninhabited island of the British Virgin Islands in the Caribbean. It sits between the eastern tip of Little Jost Van Dyke and Tortola. It is 14 acres (6 ha) in area.
Little Jost Van Dyke is one of the British Virgin Islands. It is a small island on the east end of the island of Jost Van Dyke. Like Jost Van Dyke, it takes its name from the Dutch privateer Joost van Dyk. It is the location of the Diamond Cay National Park, which includes the nesting grounds of wild boobies, terns and pelicans.
The Christmas Island shrew, also known as the Christmas Island musk-shrew is an extremely rare or possibly extinct shrew from Christmas Island. It was variously placed as subspecies of the Asian gray shrew or the Southeast Asian shrew, but morphological differences and the large distance between the species indicate that it is an entirely distinct species.
Diamond Cay is a tiny islet located just off Jost Van Dyke in the British Virgin Islands in the Caribbean. At low tide, it is connected by a sandbar to Jost Van Dyke. It was declared a national park in 1991. The Diamond Cay National Park provides habitat for pelicans, terns and boobies to nest.
Great Tobago is an uninhabited island of the British Virgin Islands in the Caribbean, located, along with sister island Little Tobago, approximately six miles west of Jost Van Dyke. The Tobagos are the westernmost of the British Virgin Islands. At 210 acres (85 ha) in size, it is surrounded by steep cliffs that also extend below the water. Since the 1990s, Great Tobago, Little Tobago islands, and nearby Mercurious and Watson Rocks are protected as part of the National Parks Trust.
Little Tobago is an uninhabited island of the British Virgin Islands in the Caribbean, located, along with sister island Great Tobago, approximately 3.6 nautical miles west of Jost Van Dyke. The Tobagos are the westernmost of the British Virgin Islands.
Sage Mountain National Park is a protected area of the British Virgin Islands. It is named after the highest peak of the island of Tortola, Mount Sage. The Mount Sage volcanic peak rises to a height of 1,716 feet (523 m), and is thus the highest point in all of the Virgin Islands. The park is located to the southwest of the island group's capital, Road Town. The park, which includes the mountain range, extends over an area of 96 acres (39 ha). The vegetation is of semi-rain forest type. There are many trails for trekking and hiking.
Seabirds include some of the most threatened taxa anywhere in the world. For example, of extant albatross species, 82% are listed as threatened, endangered, or critically endangered by the International Union for Conservation of Nature. The two leading threats to seabirds are accidental bycatch by commercial fishing operations and introduced mammals on their breeding islands. Mammals are typically brought to remote islands by humans either accidentally as stowaways on ships, or deliberately for hunting, ranching, or biological control of previously introduced species. Introduced mammals have a multitude of negative effects on seabirds including direct and indirect effects. Direct effects include predation and disruption of breeding activities, and indirect effects include habitat transformation due to overgrazing and major shifts in nutrient cycling due to a halting of nutrient subsidies from seabird excrement. There are other invasive species on islands that wreak havoc on native bird populations, but mammals are by far the most commonly introduced species to islands and the most detrimental to breeding seabirds. Despite efforts to remove introduced mammals from these remote islands, invasive mammals are still present on roughly 80% of islands worldwide.
The small Indian mongoose is a mongoose species native to Iraq and northern India; it has also been introduced to several Caribbean and Pacific islands.
