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Ctenophorus Spinodomus
''Ctenophorus spinodomus'' commonly known as Eastern Mallee Dragon, is a species of Agamidae, agamid lizard Endemism, endemic to the arid and Semi-arid climate, semi-arid regions of southeastern Australia. Belonging to the genus ''Ctenophorus'', which comprises a diverse group of 35 species this small lizard is characterised by striking colours and unique behaviours. Commonly known as dragon lizards, ''spinodomus'' is derived from the Greek words "spinos" (thorn) and "domos" (house), referring to its preference for burrowing habitats among spiny vegetation. They are curious creatures and can be found darting between the safety of ''Triodia (plant), Triodia'' grass clumps or basking on the red sand. Description The Eastern Mallee Dragon exhibits a range of physical features that distinguish it from other agamid lizards and which play a crucial role in their survival. Adult males have a continuous row of 15–22 femoral pores on each side, arranged in an arching pattern toward th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallee Military Dragon
The Mallee dragon (''Ctenophorus fordi)'', also Common name, commonly known as the Mallee dragon and the Mallee sand-dragon, is a species of lizard in the Family (biology), family Agamidae. The species is native to the arid parts of southern Australia. Etymology The Mallee military dragon's Specific name (zoology), specific name, ''fordi'', commemorates Dr. species:Julian Ralph Ford, Julian Ralph Ford (1932–1987). Dr. Ford was an ornithologist, herpetologist and chemist who worked at the Western Australian Museum. He collected the lizard holotype and many of the paratypes. Description ''C. fordi'' is a small Endemism, endemic Australian lizard that grows to a maximum size of snout–vent length (SVL).Garcia JRD, Dyer A (2013). "Trade-off between camouflage and sexual dimorphism revealed by UV digital imaging: the case of Australian Mallee dragons (''Ctenophorus fordi)''". ''Journal of Experimental Biology'' 216: 4290-4298. https://doi.org/:10.1242/jeb.094045 ''C. fordi'' di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Allen Sadlier
Ross or ROSS may refer to: People * Clan Ross, a Highland Scottish clan * Ross (name), including a list of people with the surname or given name Ross, as well as the meaning * Earl of Ross, a peerage of Scotland Places * RoSS, the Republic of South Sudan Antarctica * Ross Sea * Ross Ice Shelf * Ross Dependency Australia * Ross, Tasmania Chile * Ross Casino, a former casino in Pichilemu, Chile; now the Agustín Ross Cultural Centre Ireland *"Ross", a common nickname for County Roscommon * Ross, County Mayo, a townland in Killursa civil parish, barony of Clare, County Mayo, bordering Moyne Townland * Ross, County Westmeath, a townland in Noughaval civil parish, barony of Kilkenny West, County Westmeath * Ross, County Wexford * The Diocese of Ross in West Cork. The Roman Catholic diocese merged with Cork in 1958 to become the Roman Catholic Diocese of Cork and Ross, while the Church of Ireland diocese is now part of the Diocese of Cork, Cloyne and Ross. This area, centered aroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murray River
The Murray River (in South Australia: River Murray) (Ngarrindjeri: ''Millewa'', Yorta Yorta: ''Tongala'') is a river in Southeastern Australia. It is Australia's longest river at extent. Its tributaries include five of the next six longest rivers of Australia (the Murrumbidgee, Darling, Lachlan, Warrego and Paroo Rivers). Together with that of the Murray, the catchments of these rivers form the Murray–Darling basin, which covers about one-seventh the area of Australia. It is widely considered Australia's most important irrigated region. The Murray rises in the Australian Alps, draining the western side of Australia's highest mountains, then meanders northwest across Australia's inland plains, forming the border between the states of New South Wales and Victoria as it flows into South Australia. From an east–west direction it turns south at Morgan for its final , reaching the eastern edge of Lake Alexandrina, which fluctuates in salinity. The water then flows throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenophorus
''Ctenophorus'' is a genus of lizards, commonly known as comb-bearing dragons, in the family Agamidae. The genus contains the most diverse group of dragon lizards in Australia. It is the largest group of Australian lizards and it has an extensive radiation in the arid zones. Many of the species of ''Ctenophorus'' have been grouped by a similar morphology. The informal names and groupings within this genus — rock dragon, crevice-dragon, ground-dragon, sand-dragon, and bicycle-dragon — are named after the mythological creature, the dragon. Lizards in the genus ''Ctenophorus'' may be confused with lizards in the genera '' Tympanocryptis'' and ''Diporiphora''. Swan G, Shea G, Sadlier R (2004) ''A Field Guide to Reptiles of New South Wales''. Sydney, New South Wales: Reed New Holland. . Species There are 34 recognized species in the genus. *'' Ctenophorus adelaidensis'' (Gray, 1841) – western heath dragon *'' Ctenophorus butlerorum'' (Storr, 1977) – Butler's dragon, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agamid Lizards Of Australia
Agamidae is a family of over 300 species of iguanian lizards indigenous to Africa, Asia, Australia, and a few in Southern Europe. Many species are commonly called dragons or dragon lizards. Overview Phylogenetically, they may be sister to the Iguanidae, and have a similar appearance. Agamids usually have well-developed, strong legs. Their tails cannot be shed and regenerated like those of geckos (and several other families such as skinks), though a certain amount of regeneration is observed in some. Many agamid species are capable of limited change of their colours to regulate their body temperature. In some species, males are more brightly coloured than females, and colours play a part in signaling and reproductive behaviours. Although agamids generally inhabit warm environments, ranging from hot deserts to tropical rainforests, at least one species, the mountain dragon, is found in cooler regions. They are particularly diverse in Australia. This group of lizards includes som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recolonization
Recolonization is a process in which former or new colonizing powers retain influence over former colonies in respects which effectively replicate or reproduce the conditions for the former colony which existed under direct colonialism, especially in instances in which the former colony is now an List of countries, independent nation state. Recolonization inherently references the failure or incomplete nature of decolonization and is often used to reference the conditions of former colonies in the Global South, many of which are now officially independent and sovereign nations yet are still subjugated to former colonial powers in the Global North by global capitalism, which maintains continued resource extraction and military control (e.g. counter-revolutionary forces and Regime change, regime changes) in former colonies with the explicit purpose of serving and benefiting the interests of the former or new colonizing powers.Saul 1993, p. x-xii. The term has been compared to neocolonia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecological Succession
Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire) or more or less. Bacteria allows for the cycling of nutrients such as carbon, nitrogen and sulphur. The community begins with relatively few pioneering plants and animals and develops through increasing complexity until it becomes stable or self-perpetuating as a climax community. The "engine" of succession, the cause of ecosystem change, is the impact of established organisms upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one's own environment. Succession is a process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Fragmentation
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment (suspected of being one of the major causes of speciation), and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats. Definition The term habitat fragmentation includes five discrete phenomena: * Reduction in the total area of the habitat * Decrease of the interior: edge ratio * Isolation of one habitat fragment from other areas of habitat * Breaking up of one patch of habitat into several smaller patches * Decrease in the average size of each patch of habitat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predation
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators. Predators may actively search for or pursue prey or wait for it, often concealed. When prey is detected, the predator assesses whether to attack it. This may involve ambush or pursuit predation, sometimes after stalking the prey. If the attack is successful, the predator kills the prey, removes any inedible parts like the shell or spines, and eats it. Predators are adapted and often highly specialized for hunting, with acute senses such as vision, hearing, or smell. Many predatory animals, both vertebrate and inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oviparity
Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and monotremes. In traditional usage, most insects (one being ''Culex pipiens'', or the common house mosquito), molluscs, and arachnids are also described as oviparous. Modes of reproduction The traditional modes of reproduction include oviparity, taken to be the ancestral condition, traditionally where either unfertilised oocytes or fertilised eggs are spawned, and viviparity traditionally including any mechanism where young are born live, or where the development of the young is supported by either parent in or on any part of their body. However, the biologist Thierry Lodé recently divided the traditional category of oviparous reproduction into two modes that he named ovuliparity and (true) oviparity respectively. He distinguished the tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectotherm
An ectotherm (from the Greek () "outside" and () "heat") is an organism in which internal physiological sources of heat are of relatively small or of quite negligible importance in controlling body temperature.Davenport, John. Animal Life at Low Temperature. Publisher: Springer 1991. Such organisms (for example frogs) rely on environmental heat sources, which permit them to operate at very economical metabolic rates. Some of these animals live in environments where temperatures are practically constant, as is typical of regions of the abyssal ocean and hence can be regarded as homeothermic ectotherms. In contrast, in places where temperature varies so widely as to limit the physiological activities of other kinds of ectotherms, many species habitually seek out external sources of heat or shelter from heat; for example, many reptiles regulate their body temperature by basking in the sun, or seeking shade when necessary in addition to a whole host of other behavioral thermo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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