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Topics related to "ecological niche"

cichlid
cichlid , common name for members of the family Cichlidae, several hundred species of spiny-finned freshwater fishes of moderate or small size, native to Africa, S Asia, Mexico, and Central and South America. Cichlids are found in tropical waters, where they occupy the same ecological niche as their... Read more
Darwin's finches
Darwin's finches or Galapagos finches , species of small finches, constituting the subfamily Geospizinae of the finch family. This group of thirteen species is confined to the Galápagos Islands, except a single species found on Cocos Island, about 600 mi (960 km) northeast. Their special ... Read more
fly
fly name commonly used for any of a variety of winged insects , but properly restricted to members of the order Diptera, the true flies, which includes the housefly , gnat , midge , mosquito , and tsetse fly . All have sucking or piercing-and-sucking mouthparts and, except for a few wingless ... Read more
fly
fly name commonly used for any of a variety of winged insects , but properly restricted to members of the order Diptera, the true flies, which includes the housefly , gnat , midge , mosquito , and tsetse fly . All have sucking or piercing-and-sucking mouthparts and, except for a few wingless ... Read more
coyote
coyote or prairie wolf, small, swift wolf , Canis latrans, native to W North America. It is found in deserts, prairies, open woodlands, and brush country; it is also called brush wolf. The coyote resembles a medium-sized dog, with a narrow, pointed face, long, thick, tawny fur and a black-ti... Read more
rhea
rhea , common name for a South American bird of the family Rheidae, which is related to the ostrich . Weighing from 44 to 55 lb (20-25 kg) and standing up to 60 in. (152 cm) tall, the rhea is slightly smaller than the ostrich and lacks that bird's extravagant plumelike tail feathers. The rhea also ... Read more
tenrec
tenrec , any of the small insectivorous mammals of the family Tenrecidae, also called tendrecs or tanrecs. These animals are found on the island of Madagascar. In that closed environment they have evolved diverse forms, filling various ecological niches occupied by other small mammals elsewhere. The... Read more
marsupial
marsupial , member of the order Marsupialia, or pouched mammals. With the exception of the New World opossums and an obscure S American family (Caenolestidae), marsupials are now found only in Australia, Tasmania, New Guinea, and a few adjacent islands. They are generally distinguished from placen... Read more
mass extinction
mass extinction the extinction of a large percentage of the earth's species, opening ecological niches for other species to fill. There have been at least ten such events. The five greatest were those of the final Ordovician period (approximately 435 million years ago), the late Devonian period ... Read more
ecology
ecology study of the relationships of organisms to their physical environment and to one another. The study of an individual organism or a single species is termed autecology; the study of groups of organisms is called synecology. The Ecosystem Within the biosphere —the total expan... Read more

Encyclopedia entries related to "ecological niche"

ecology
Book article from: The Columbia Encyclopedia, Sixth Edition ...support one or two people. The ecological conclusion is that if human beings...species to fill its so-called ecological niches, the different functional sites...the climax community. Similar ecological zonings occur among marine flora...
Extinction
Encyclopedia entry from: Macmillan Encyclopedia of Death and Dying ...these "relations" are the ecological niches, the millions of different...share a habitat, generally a niche can only be occupied by one...organisms compete for a particular niche, one will invariably lose out. If a niche should become empty, such...abundance of newly opened niches. ...
Dinosaur
Encyclopedia entry from: The Gale Encyclopedia of Science ...their behavior, physiology, and ecological relationships. Unfortunately...about their evolutionary and ecological relationships. Although they...and they filled a wide array of ecological niches. Some of the dinosaurs were...
Dinka
Encyclopedia entry from: Encyclopedia of World Cultures ...channel of the Nile River. The ecological year is defined by a dry season...however, in association with local ecological variation and with the seasonal...cover considerably different ecological niches, generalizations about the...
mass extinction
Book article from: The Columbia Encyclopedia, Sixth Edition ...large percentage of the earth's species, opening ecological niches for other species to fill. There have been at least...sea creatures, mass extinctions also opened new ecological niches, permitting surviving species to thrive in new habitats...
echinoderms
Book article from: The Oxford Companion to the Earth ...living echinoderms have occupied a number of the different ecological niches available to benthonic marine invertebrates. During the...extract nutritious particles. Many sea cucumbers occupied this niche, and other echinozoans such as the heart-shaped or irregular...
Nasioi
Encyclopedia entry from: Encyclopedia of World Cultures ...from the coast through the valleys up to altitudes 900 meters above sea level. Thus they occupied several different ecological niches; this settlement pattern conditioned exchanges of produce before European contact and created differential impacts...
Drung
Encyclopedia entry from: Encyclopedia of World Cultures ...from the Lisu and some were incorporated into Lisu society as slaves. The Drung continue to exploit a number of ecological niches with a local economy based on slash-and-burn agriculture (maize, wheat, beans), fishing, forest and mountain...
tenrec
Book article from: The Columbia Encyclopedia, Sixth Edition ...found on the island of Madagascar. In that closed environment they have evolved diverse forms, filling various ecological niches occupied by other small mammals elsewhere. There are about 30 tenrec species, classified in 10 genera. The common...
global warming
Book article from: The Columbia Encyclopedia, Sixth Edition ...supplies dependent on snow melts; profound changes in agriculture due to climate change; extinction of species as ecological niches disappear; more frequent tropical storms; and an increased incidence of tropical diseases. Among factors that...

Dictionary entries related to "ecological niche"

ecological niche
Book article from: A Dictionary of Biology ecological niche The status or role of an organism in its environment. An organism's niche is defined by the types of food it consumes, its predators, temperature tolerances, etc. Two species cannot coexist stably if they occupy identical niches.
niche
Book article from: A Dictionary of Zoology niche 1. ( ecological niche ) The functional position of an organism in its environment, comprising the habitat in which the organism lives, the periods of time during which it occurs and is active there, and the resources it obtains there. 2. ( evolutionary niche ) Way of life.
mass extinction
Book article from: A Dictionary of Biology ...cataclysmic changes in the earth's biota have profound effects on the course of evolution, for example by leaving vacant ecological niches into which surviving groups can expand and radiate. See Appendix.
pioneer plant
Book article from: A Dictionary of Ecology ...plant that occurs early in a vegetational succession . Pioneer species possess characters that suit them to their ecological niches , notably rapid growth, the production of copious, small, easily dispersed seed, and the ability to germinate...
effect hypothesis
Book article from: A Dictionary of Zoology ...proposed that a species , occupying a restricted ecological niche , would continually give rise to daughter species...characteristics; but because of the features of the particular ecological niche, only species that possessed a particular suite...
competitive exclusion principle
Book article from: A Dictionary of Biology ...in 1934, stating that two species that occupy the same habitat cannot also occupy the same ecological niche . Any two species that occupy the same niche will compete with each other to the detriment of one of the species, which will thus be excluded...
Cuénot, Lucien
Dictionary entry from: Complete Dictionary of Scientific Biography ...and environment he proposed the theory of preadaptation: the “ empty space ” or “ ecological niche ” is populated with mutants already showing characteristics adapted to the conditions of the “...
autecology
Book article from: A Dictionary of Biology ...investigate the ecology of populations or individuals of a particular species, including habitat, distribution, life cycle, etc. This should enable a full description of the ecological niche of the organism to be made. Compare synecology .
competitive-exclusion principle
Book article from: A Dictionary of Zoology ...exclusion principle ( exclusion principle , Gause principle ) The principle that no two species will occupy the same ecological niche ; i.e. two or more resource-limited species, having identical patterns of resource use, cannot coexist in...
Cultural relativity and religion
Book article from: The Concise Oxford Dictionary of World Religions ...much more than a change of clothes: the clothes worn are no doubt well-chosen (i.e. well-adapted for the ecological niche which a particular group inhabits), but they cover the same basic human body. At the other extreme are anthropologists...

Related newspaper, magazine, and trade journal articles from HighBeam Research

Ecological Niche May Dictate Sleep Habits
Newspaper article from: The Washington Post; 10/31/2005; ; 700+ words ; ...included, have adapted to their ecological niches. While many valuable functions...with this huge variation in the niches that animals occupy," Siegel...is to adapt animals to their ecological niche," Siegel said. "Given the...
Geographic distribution and ecological niche of plague in sub-Saharan Africa.(Research)(Report)
Magazine article from: International Journal of Health Geographics; 10/23/2008; ; 700+ words ; ...distribution. To this end, we develop ecological niche models (ENMs) using human plague...distribution of plague and its ecological requirements across sub-Saharan...environmental variables. If ecological factors affect the distribution...
Using ecological niche modeling for quantitative biogeographic analysis: a case study of Miocene and Pliocene Equinae in the Great Plains
Magazine article from: Paleobiology; 10/1/2009; ; 700+ words ; ...late Miocene. Here we use ecological niche modeling (ENM), specifically...each species' fundamental niche. The geographic range of each...that constrain the fundamental niche occurs. We analyze changes...distributions partitioned their niches to exploit different resources...analyze habitat ...
US ARS: Cattle fill ecological niche where buffalo no longer roam.
M2 Presswire; 5/7/1999; 691 words ; M2 PRESSWIRE-7 May 1999-US ARS: Cattle fill ecological niche where buffalo no longer roam (C)1994-99 M2 COMMUNICATIONS...Plains. Arguably the century's worst farming, ecological, economic and social disaster, the Dust Bowl taught...
Areas of endemism of Mexican terrestrial mammals: a case study using species' ecological niche modeling, Parsimony Analysis of Endemicity and Goloboff fit/Areas de endemismo de mamiferos terrestres de Mexico: un caso de estudio usando modelos de nicho ecologico, Analisis de Parsimonia de Endemismos y ajuste de Goloboff/Areas de endemismo dos mamiferos terrestres do Mexico: um estudo de caso usando modelamento de nicho ecologico ...
Magazine article from: Interciencia; 3/1/2007; ; 700+ words ; ...of endemism of Mexican terrestrial mammals using ecological niche modeling projected as species' potential distributions...obtain a smaller number of cladograms. KEYWORDS / Ecological Niche Modeling / Endemicity / GARP / Mexico / PAE / Species...
SCIENTISTS STUDYING EFFECTS OF RADIATION Chernobyl area becomes animal refuge World's worst nuclear accident has created a new ecological niche
Newspaper article from: The Milwaukee Journal Sentinel; 3/3/1996; ; 700+ words ; ...Island-size region 60 miles north of the capital, Kiev, the world's worst nuclear accident has created a new ecological niche. It is very much alive. "The zone has become a wildlife refuge," Shokhalevich says. Large animals, shy around...
A most ingenious paradoxical plankton: how do seemingly similar organisms coexist in the same ecological niche?(phytoplankton)(Report)
Magazine article from: Oceanus; 12/1/2008; ; 700+ words ; ...unique place in the world, a job to do, a niche to fill. When you are a tiny phytoplankter...ocean, how do you stand out and find your niche amid all the other phytoplankton? All...though they all seem to fill the same niche--a phenomenon known as the "paradox...
Cephalopods occupy the ecological niche of epipelagic fish in the Antarctic Polar Frontal Zone.
Magazine article from: The Biological Bulletin; 10/1/1995; ; 700+ words ; The presence of this trophic system was already evident among the results of the Discovery expeditions. Large quantities of squid remains, especially their indigestible beaks, were found in the gut contents of several albatross and seal species (1). But because E. superba is so conspicuous and
Lean, mean and green: Ecover MD Mick Bremans tells Rachel Barnes how he plans to transform the niche ecological brand into a major force in grocery.(the big interview)(Interview)
Magazine article from: Grocer; 10/20/2007; ; 700+ words ; ...green brands. Set to report sales of 50m [pounds sterling] this year, half of which will come from the UK, the Belgian ecological cleaning products business is riding high and Bremans cuts a confident figure as he talks to The Grocer at the company's...
Eco-tutelage: teachers experiment with eclectic efforts at ecological erudition.
Magazine article from: Science News; 9/22/1990; ; 700+ words ; ...at a meeting of the Ecological Society of America...demonstrate concepts of niche, competition, evolution...fries -- represent ecological niches, or areas of competitive...discover a smorgasbord of ecological rules. For example...fast-food jungle, niche dimensions (food categories...