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Thick-billed Grasswren
The thick-billed grasswren (''Amytornis modestus'') is a species of bird in the family Maluridae. It is Endemism, endemic to Australia. Its natural habitat is Mediterranean forests, woodlands, and scrub, Mediterranean-type shrubby vegetation. Taxonomy and systematics The thick-billed grasswren was formerly considered as conspecific with the western grasswren until split as a separate species in 2010. Subspecies Seven subspecies have been identified in recent studies (Black 2011, 2016; Austin et al. 2013): * †''A. m. modestus'' – (Alfred John North, North, 1902): Now extinct. Formerly found in Northern Territory * ''A. m. indulkanna'' – (Gregory Mathews, Mathews, 1916): Found in Northern Territory and South Australia * ''A. m. raglessi'' – Black, 2011: Found in Flinders Ranges in South Australia * ''A. m. curnamona'' – Black, 2011: Found in Lake Frome Basin in South Australia * ''A. m. cowarie'' – Black, 2016: Found in Sturt Stony Desert in South Australia * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred John North
Alfred John North (11 June 1855 – 6 May 1917) was an Australian ornithologist. North was born in Melbourne and was educated at Melbourne Grammar School. He was appointed to the Australian Museum, Sydney in 1886 and was given a permanent position there five years later. He wrote a ''List of the Insectivorous Birds of New South Wales'' (1897) and a ''Descriptive Catalogue of the Nests and Eggs of Birds Found Breeding in Australia and Tasmania'' (1889) with George Barnard as co-author. He described a number of birds for the first time, many in the ''Victorian Naturalist'', the magazine of the Field Naturalists Club of Victoria of which he was a founding member. ReferencesNorth, Alfred John (1855 - 1917)at Bright Sparcs, University of Melbourne The University of Melbourne (colloquially known as Melbourne University) is a public university, public research university located in Melbourne, Australia. Founded in 1853, it is Australia's second oldest university and the oldest in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sturt National Park
The Sturt National Park is a protected national park that is located in the arid far north-western corner of New South Wales, in eastern Australia. The national park is situated approximately northwest of Sydney and the nearest town is , away. Established in 1972, the park is named in honour of Charles Sturt, a colonial explorer. The park features typical outback scenery of flat, reddish-brown landscapes. It was resumed from five pastoral properties. The Sturt National Park was featured in British documentary called '' Planet Earth''. The Dingo Fence was built along the national park's northern boundary. Flora Flora consists mostly of mulga bushland and arid shrubland, particularly Saltbush. After good rain the harsh landscape is transformed by the growth of wildflowers including Sturt's desert pea. Fauna Mammals At least 31 species of mammal have been recorded in the park. The most obvious to visitors include the red kangaroo, western grey kangaroo, eastern grey kan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity (animal), captivity, an example being the military macaw. In 2012 there were 5,196 animals and 6,789 plants classified as vulnerable, compared with 2,815 and 3,222, respectively, in 1998. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Fragmentation
Population fragmentation is a form of population segregation. It is often caused by habitat fragmentation. Causes Population fragmentation can be the cause of natural forces or human actions, although in modern times, human activity is the most common cause. Some general causes of fragmentation are: * the development of land around a protected area, even through the addition of a single road lane or fence line, * the captivity, capture or killing of species in an area that links populations, * the movement of a population away from other individuals of that species, such as the natural introduction of wolves and moose on Isle Royale, * geologic processes, such as landslides or volcanoes, dividing a habitat * rising sea levels separating islands from what was once a common landmass, * global warming, especially when coupled with mountains, reducing movement from one habitat to another. Genetic effects Population fragmentation may cause inbreeding depression, which leads to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macroinvertebrate
Invertebrates are animals that neither develop nor retain a vertebral column (commonly known as a ''spine'' or ''backbone''), which evolved from the notochord. It is a paraphyletic grouping including all animals excluding the chordate subphylum Vertebrata, i.e. vertebrates. Well-known phyla of invertebrates include arthropods, molluscs, annelids, echinoderms, flatworms, cnidarians, and sponges. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxa have a greater number and diversity of species than the entire subphylum of Vertebrata. Invertebrates vary widely in size, from 10 μm (0.0004 in) myxozoans to the 9–10 m (30–33 ft) colossal squid. Some so-called invertebrates, such as the Tunicata and Cephalochordata, are actually sister chordate subphyla to Vertebrata, being more closely related to vertebrates than to other invertebrates. This makes the "invertebrates" paraphyletic, so the term has no sign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushire
Bushehr (; ) is a port city in the Central District of Bushehr County, Bushehr province, Iran, serving as capital of the province, the county, and the district. Etymology The roots of the name "Bushehr" are uncertain. It is unlikely that it is derived from ''Abū Šahr'' ("father of the city"), a theory which remains popular. It may be an abbreviation of Bokht-Ardashir ("Ardashir has given"), though this is not backed by conclusive evidence History Origins A number of alleged premodern references to Bushehr, including the first made by an Arab geographer in 1225, have been disputed as perhaps alluding to the modern city of Reishahr, a harbor 10 km to the south, where archaeological evidence points to the presence of a much older settlement. Reishahr is also most likely equivalent to the town of Mesambria, a place the Greeks knew since the campaign of Nearchus (died 300 BC), and which also has been occasionally identified with Bushehr. Rise In 1734, the Iranian mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feral Cats In Australia
Cats (''Felis catus''), initially introduced into Australia with the First Fleet in 1788, now number more than 11 million distributed across more than 90% of the continent including every major island. They are the second most popular pet by household (third most populous overall after dogs and fish). In 2023 there were 5.3 million kept as pets of which approximately 95% are neutered. In addition there are estimated to be up to 6 million feral cats found in almost every remote area across the country. Cats are considered by the CSIRO to be the most damaging invasive pest by costPest plants and animals cost Australia aroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Foxes In Australia
Red foxes pose a serious conservation problem in Australia. 2012 estimates indicate that there are more than 7.2 million red foxes (''Vulpes vulpes'') (and growing), with a range extending throughout most of the continental mainland. The species became established in Australia through successive introductions, by settlers, beginning around the 1830s. Due to its rapid spread and ecological impact, it has been classified as one of the most damaging invasive species in Australia. Introduction and spread European red foxes were introduced to the British colonies of Van Diemen's Land as early as 1833, and to the Port Phillip District and Sydney Regions of New South Wales as early as 1845; introductions were, originally, intended to uphold the traditional English sport of fox hunting. Curiously, prior to 2010, a permanent fox population was not established on the island of Tasmania, and it is widely held that they were outcompeted by the Tasmanian devil and the now-extinct thylacin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feral
A feral (; ) animal or plant is one that lives in the wild but is descended from domesticated individuals. As with an introduced species, the introduction of feral animals or plants to non-native regions may disrupt ecosystems and has, in some cases, contributed to extinction of indigenous species. The removal of feral species is a major focus of island restoration. Animals A feral animal is one that has escaped from a domestic or captive status and is living more or less as a wild animal, or one that is descended from such animals. Other definitions include animals that have changed from being domesticated to being wild, natural, or untamed. Some common examples of animals with feral populations are horses, dogs, goats, cats, rabbits, camels, and pigs. Zoologists generally exclude from the feral category animals that were genuinely wild before they escaped from captivity: neither lions escaped from a zoo nor the white-tailed eagles re-introduced to the UK are regarded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overgrazing
Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature reserves. It can also be caused by immobile, travel restricted populations of native or non-native wild animals. Overgrazing reduces the usefulness, productivity and biodiversity of the land and is one cause of desertification and erosion. Overgrazing is also seen as a cause of the spread of invasive species of non-native plants and of weeds. Degrading land, emissions from animal agriculture and reducing the biomass in a ecosystem contribute directly to climate change between grazing events. Successful planned grazing strategies have been in support of the American bison of the Great Plains, or migratory wildebeest of the African savannas, or by holistic planned grazing. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loss Of Habitat
Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease in biodiversity and species numbers. Habitat destruction is in fact the leading cause of biodiversity loss and species extinction worldwide. Humans contribute to habitat destruction through the use of natural resources, agriculture, industrial production and urbanization (urban sprawl). Other activities include mining, logging and trawling. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introduction of invasive species, ecosystem nutrient depletion, water and noise pollution are some examples. Loss of habitat can be preceded by an initial habitat fragmentation. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invertebrate
Invertebrates are animals that neither develop nor retain a vertebral column (commonly known as a ''spine'' or ''backbone''), which evolved from the notochord. It is a paraphyletic grouping including all animals excluding the chordata, chordate subphylum Vertebrata, i.e. vertebrates. Well-known Phylum, phyla of invertebrates include arthropods, molluscs, annelids, echinoderms, flatworms, cnidarians, and sponges. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxon, taxa have a greater number and diversity of species than the entire subphylum of Vertebrata. Invertebrates vary widely in size, from 10 Micrometre, μm (0.0004 in) myxozoans to the 9–10 m (30–33 ft) colossal squid. Some so-called invertebrates, such as the Tunicata and Cephalochordata, are actually sister chordate subphyla to Vertebrata, being more closely related to vertebrates than to other invertebrates. This makes the "invertebrates" para ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
