|
Supertramp (ecology)
In ecology, a supertramp species is any type of animal which follows the "supertramp" strategy of high dispersion among many different habitats, towards none of which it is particularly specialized. Supertramp species are typically the first to arrive in newly available habitats, such as volcanic islands and freshly deforested land; they can have profoundly negative effects on more highly specialized flora and fauna, both directly through predation and indirectly through competition for resources. The name was coined by Jared Diamond in 1974, as an allusion to both the itinerant lifestyle of the tramp, and the then-popular band Supertramp. Although Diamond originally applied the term only to birds, the term has since been applied to insects and reptiles as well, among others; ''any'' species which can migrate can be a supertramp. In an evolutionary context, the supertramp may represent the first stage of the taxon cycle.Pepke, M. L., Irestedt, M., Fjeldså, J., Rahbek, C., & Jøns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history. Ecology is a branch of biology, and it is not synonymous with environmentalism. Among other things, ecology is the study of: * The abundance, biomass, and distribution of organisms in the context of the environment * Life processes, antifragility, interactions, and adaptations * The movement of materials and energy through living communities * The successional development of ecosystems * Cooperation, competition, and predation within and between species * Patterns of biodiversity and its effect on ecosystem processes Ecology has practical applications in conservation biology, wetland management, natural resource managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Island
Geologically, a high island or volcanic island is an island of volcanic origin. The term can be used to distinguish such islands from low islands, which are formed from sedimentation or the uplifting of coral reefs (which have often formed on sunken volcanos). Definition and origin There are a number of "high islands" that rise no more than above sea level, often classified as "islets or rocks", while some low islands, such as Banaba, Henderson Island, Makatea, Nauru, and Niue, as uplifted coral islands, rise over above sea level. The two types of islands are often found in proximity to each other, especially among the islands of the South Pacific Ocean, where low islands are found on the fringing reefs that surround most high islands. Volcanic islands normally arise above a hotspot. Habitability High islands above a certain size usually have fresh groundwater Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deforestation
Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, a half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute. The Food and Agriculture Organization of the United Nations defines deforestation as the conversion of forest to other land uses (regardless of whether it is human-induced). "Deforestation" and "forest area net change" are not the same: the latter is the sum of all forest losses (deforestation) and all forest gains (forest expansion) in a gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jared Diamond
Jared Mason Diamond (born September 10, 1937) is an American geographer, historian, ornithologist, and author best known for his popular science books ''The Third Chimpanzee'' (1991); ''Guns, Germs, and Steel'' (1997, awarded a Pulitzer Prize); ''Collapse'' (2005), ''The World Until Yesterday'' (2012), and '' Upheaval'' (2019). Originally trained in biochemistry and physiology,Jared Diamond, ''Collapse: How Societies Choose to Fail or Survive'', Penguin Books, 2005 and 2011 () Diamond is known for drawing from a variety of fields, including anthropology, ecology, geography, and evolutionary biology. He is a professor of geography at UCLA. In 2005, Diamond was ranked ninth on a poll by '' Prospect'' and ''Foreign Policy'' of the world's top 100 public intellectuals. Early life and education Diamond was born on September 10, 1937, in Boston, Massachusetts, United States. Both of his parents were from Ashkenazi Jewish families who had emigrated to the United States. His father, L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vagrants
Vagrancy is the condition of homelessness without regular employment or income. Vagrants (also known as bums, vagabonds, rogues, tramps or drifters) usually live in poverty and support themselves by begging, scavenging, petty theft, temporary work, or social security (where available). Historically, vagrancy in Western societies was associated with petty crime, begging and lawlessness, and punishable by law with forced labor, military service, imprisonment, or confinement to dedicated labor houses. Both ''vagrant'' and ''vagabond'' ultimately derive from the Latin word '' vagari'', meaning "to wander". The term ''vagabond'' is derived from Latin ''vagabundus''. In Middle English, ''vagabond'' originally denoted a person without a home or employment. Historical views Vagrants have been historically characterised as outsiders in settled, ordered communities: embodiments of otherness, objects of scorn or mistrust, or worthy recipients of help and charity. Some ancient sources ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tramp
A tramp is a long-term homeless person who travels from place to place as a vagrant, traditionally walking all year round. Etymology Tramp is derived from a Middle English verb meaning to "walk with heavy footsteps" (''cf.'' modern English ''trample'') and "to go hiking". In Britain the term was widely used to refer to vagrants in the early Victorian period. The social reporter Henry Mayhew refers to it in his writings of the 1840s and 1850s. By 1850 the word was well established. In that year Mayhew described "the different kinds of vagrants or tramps" to be found in Britain, along with the "different trampers' houses in London or the country". He distinguished several types of tramps, ranging from young people fleeing from abusive families, through to people who made their living as wandering beggars and prostitutes. In the United States, the word became frequently used during the American Civil War, to describe the widely shared experience of undertaking long marches, ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supertramp
Supertramp were an English rock band that formed in London in 1969. Marked by the individual songwriting of founders Roger Hodgson (vocals, keyboards, and guitars) and Rick Davies (vocals and keyboards), they are distinguished for blending progressive rock and pop styles as well as for a sound that relied heavily on Wurlitzer electric piano. The group's lineup changed numerous times throughout their career, with Davies being the only consistent member throughout the decades. Other longtime members included bassist Dougie Thomson, drummer Bob Siebenberg, and saxophonist John Helliwell. The band were initially a prog-rock group, but starting with their third album, ''Crime of the Century'' (1974), they began moving towards a more pop-oriented sound. They reached their commercial peak with 1979's ''Breakfast in America'', which yielded the international top 10 singles "The Logical Song", "Breakfast in America", "Goodbye Stranger", and " Take the Long Way Home". Their other top 4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colonisation (biology)
Colonisation or colonization is the process in biology by which a species spreads to new areas. Colonisation often refers to ''successful'' immigration where a population becomes integrated into an ecological community, having resisted initial local extinction. In ecology, it is represented by the symbol ''λ'' (lowercase lambda) to denote the long-term intrinsic growth rate of a population. One classic scientific model in biogeography posits that species must continue to colonize new areas through its life cycle (called a '' taxon cycle'') in order to achieve longevity. Accordingly, colonisation and extinction are key components of island biogeography, a theory that has many applications in ecology, such as metapopulations. Scale Colonisation occurs on several scales. In the most basic form, as biofilm in the formation of communities of microorganisms on surfaces. In small scales such as colonising new sites, perhaps as a result of environmental change. And on larger scales w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assembly Rules
Community assembly rules are a set of controversial rules in ecology, first proposed by Jared Diamond. Rules The rules were developed after more than a decade of research into the avian assemblages on islands near New Guinea. The rules assert that competition is responsible for determining the patterns of assemblage composition. Rule 1: Forbidden species combinations The first rule is "forbidden species combinations". Diamond's hypothesis was that competition, not random immigration, was the main force structuring the species composition of islands. So for example, the Bismarck black myzomela (''Myzomela pammelaena'') excludes the black sunbird (''Nectarinia sericea''). The Bismarck black myzomela lives on 23 of the 41 surveyed islands in the Bismarck Archipelago, but not on any of the 14 islands inhabited by the black sunbird. The two birds are about the same size, and both use their curved bills to sip nectar; Diamond argued that competition affects their distribution. Rule 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecological Processes
Ecosystem ecology is the integrated study of living ( biotic) and non-living (abiotic) components of ecosystems and their interactions within an ecosystem framework. This science examines how ecosystems work and relates this to their components such as chemicals, bedrock, soil, plants, and animals. Ecosystem ecology examines physical and biological structures and examines how these ecosystem characteristics interact with each other. Ultimately, this helps us understand how to maintain high quality water and economically viable commodity production. A major focus of ecosystem ecology is on functional processes, ecological mechanisms that maintain the structure and services produced by ecosystems. These include primary productivity (production of biomass), decomposition, and trophic interactions. Studies of ecosystem function have greatly improved human understanding of sustainable production of forage, fiber, fuel, and provision of water. Functional processes are mediated by regi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecology Terminology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history. Ecology is a branch of biology, and it is not synonymous with environmentalism. Among other things, ecology is the study of: * The abundance, biomass, and distribution of organisms in the context of the environment * Life processes, antifragility, interactions, and adaptations * The movement of materials and energy through living communities * The successional development of ecosystems * Cooperation, competition, and predation within and between species * Patterns of biodiversity and its effect on ecosystem processes Ecology has practical applications in conservation biology, wetland management, natural resource management (ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Ecology")
.JPG "Click for more on -> Supertramp")
