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The Ecology of Place: Contributions of Place-Based
The Ecology of Place: Contributions of Place-Based

... appear to enjoy laws, constants, and relationships—descriptions of the behavior of matter and energy—that apply universally, at least at macroscopic and nonrelativistic scales. Does ecology have any similar universal laws or invariant constants, which allow us to generalize from one system to anothe ...
controls on food webs in gravel-bedded rivers
controls on food webs in gravel-bedded rivers

... stoneflies, dragonflies, damselflies), with generation times of months to years. These small predators are in turn consumed by fishes and other vertebrates, with generation times of years to decades. These patterns can lead to inverted pyramids of trophic level biomass rarely seen in terrestrial foo ...
The co-evolutionary genetics of ecological communities
The co-evolutionary genetics of ecological communities

... either simultaneously or one after the other, modified and adapted in the most perfect manner to each other, by continued preservation of individuals presenting mutual and slightly favourable deviations of structure.” Patterns of co-adaptation result from the process of co-evolution, which occurs wh ...
Why biodiversity is important to oceanography: potential roles of
Why biodiversity is important to oceanography: potential roles of

... processes in marine benthic and terrestrial systems also may operate in pelagic systems. We review selected examples of how genetic, species, and functional group diversity may affect ocean ecosystem processes. We consider 3 types of examples that detail how (1) producer richness or composition can ...
Creative Ecosystems
Creative Ecosystems

... The design of environments from which creative behaviour is expected to emerge is at least as important as the design of the individuals who are expected to evolve this behaviour. The Artificial Ecosystem as a generalised evolutionary approach for creative discovery. Natural ecosystems exhibit a vas ...
biod10
biod10

... evolution, and ecosystems are all tied together. If a contiguous gradient is preserved in a series of fragments will the fragments still function the way they used to? “Maintain evolutionary and ecological processes.” The first two statements are counter to this one, and it is hard to maintain what ...
Mechanistic Approaches to Community Ecology
Mechanistic Approaches to Community Ecology

... law" sensu Nagel (1961; see below), or at least some assumptions used in its derivation can be called experimental laws. In fact, as is so often the case in community ecology, these are more nearly "hopeful laws" rather than laws; they are proposals about nature that remain, for the most part, to be ...
Ecosystem Changes, Biodiversity Loss and Human Well
Ecosystem Changes, Biodiversity Loss and Human Well

... the extinction of species and populations at local scales or changes in community composition. A current trend is the simplification of biotic communities due to the increasing dominance of species better adapted to humanmodified ecosystems (species that are more tolerant to perturbation, that benef ...
Engineering microbial systems to explore ecological and
Engineering microbial systems to explore ecological and

... having to deal with many confounding factors in the natural context (i.e. ‘background’ processes). For instance, one may be interested in the property of a particular regulatory module (Figure 1, shaded region in the right panel). In reality, however, the module cannot be completely insulated from o ...
File - Mr. Greening`s Science
File - Mr. Greening`s Science

... Date: 19. Base your answer to the following question on the information below and on your knowledge of biology. The dodo bird inhabited the island of Mauritius in the Indian Ocean, where it lived undisturbed for years. It lost its ability to fly and it lived and nested on the ground where it ate fr ...
MS Chapter 3 Powerpoint
MS Chapter 3 Powerpoint

... • Others get their nutrients by consuming other organisms ...
Biotic and Abiotic Controls in River and Stream Communities
Biotic and Abiotic Controls in River and Stream Communities

... Abstract. Lotic ecologists share a major goal of explaining the distribution and abundance of biota in the world's rivers and streams, and of predicting how this biota will respond to change in fluvial ecosystems. We discuss five areas of research that would contribute to our pursuit of this goal. F ...
Farewell Spit Ramsar Site
Farewell Spit Ramsar Site

... • CALLS ON Contracting Parties to support the development, by the relevant authorities within their territories, of Early Warning Systems for detecting, and initiating action in response to, change in ecological character ...
Canton Keystone Biology Curriculum Map
Canton Keystone Biology Curriculum Map

... Common characteristics of life: o composed of one or more units called cells o obtain and use matter and energy to carry out their life processes o reproduce and pass their genetic material on to the next generation o seek to maintain a biological balance between their internal and external environm ...
habitat loss, trophic collapse, and the decline of ecosystem services
habitat loss, trophic collapse, and the decline of ecosystem services

... We have used the list of ecosystem goods and services developed by the Millennium Ecosystem Assessment as the basis of our list of services provided by different natural and human-modified ecosystems (Table 1; Millennium Ecosystem Assessment 2003). We have then classified the response of ecosystem ser ...
Document
Document

... 89. Using a chart, show the three main differences between RNA and DNA (sides, sugars and bases). 90. Sketch and explain the steps involved in the process of transcription. 91. Sketch and explain the steps involved in the process of translation 92. Explain the relationship between DNA and chromosom ...
PDF
PDF

... Whereas speciation may be the general pattern in biological systems not subject to exogenous forces (or massive human manipulation), it is not clear that economic processes evolve in the same manner. On a global scale, economic processes may result in reduced product variety, increased business conc ...
Literature bibliography
Literature bibliography

... McKey, D., Waterman, P.G., Mbi, C.N., Gartlan, J.S., and Struhsaker, T.T. 1978. Phenolic content of vegetation in two African rain forests: Ecological implications. Science 202: 61-64. Rosenthal, G.A., and Janzen, D.H. (eds.) 1979. Herbivores. Their Interaction with Secondary Plant Metabolites. New ...
EVOLUTION BY NATURAL SELECTION
EVOLUTION BY NATURAL SELECTION

... both extremes over the intermediate types. Disruptive selection favours individuals with variation at opposite extremes of trait over individual with intermediate variations. Sometimes environmental conditions may ...
Ecologically Appropriate Plant Materials for
Ecologically Appropriate Plant Materials for

... material that is generally adapted to the site but not necessarily local (Broadhurst et al. 2008, Hoffmann and Sgrò 2011, Sgrò et al. 2011, Weeks et al. 2011). Increased genetic variation can enhance genetic flexibility and can provide additional raw material to drive natural selection, potentially ...
EVOLUTION 129Q
EVOLUTION 129Q

... Which term refers to the classification of organisms in an ordered system that indicates natural relationships? A. ...
Bill Analysis - Texas Legislature Online
Bill Analysis - Texas Legislature Online

... designee and an authorized official of a public or private college or university, allows the college or university to engage in ecological research on the land throughout the year, subject to reasonable notice, and provides that other uses of the land are subordinate to ecological research. The bill ...
Darwinism- Natural Selection by Dr. Istiak Mahfuz
Darwinism- Natural Selection by Dr. Istiak Mahfuz

... The sex distinction between the worker and queens is an acquired variation ...
Using artificial systems to explore the ecology and evolution of
Using artificial systems to explore the ecology and evolution of

... Can constructed artificial systems teach us principles that govern all, including natural, systems? Like natural systems, artificial systems have their idiosyncrasies. Thus, it is critical to study several systems so that we may discern idiosyncratic properties unique to a particular system from con ...
introduction ernst mayr and the theory of evolution
introduction ernst mayr and the theory of evolution

... adaptation to the ways of life and environments of each organism. Adherents of this theory rejected natural selection as an explanation for adaptation to the environment. The rediscovery in 1900 of Mendel’s theory of heredity led to an emphasis on the role of heredity in evolution. In the Netherland ...
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Ecology



Ecology (from Greek: οἶκος, ""house""; -λογία, ""study of"") is the scientific analysis and study of interactions among organisms and their environment. It is an interdisciplinary field that includes biology and Earth science. Ecology includes the study of interactions organisms have with each other, other organisms, and with abiotic components of their environment. Topics of interest to ecologists include the diversity, distribution, amount (biomass), and number (population) of particular organisms; as well as cooperation and competition between organisms, both within and among ecosystems. Ecosystems are composed of dynamically interacting parts including organisms, the communities they make up, and the non-living components of their environment. Ecosystem processes, such as primary production, pedogenesis, nutrient cycling, and various niche construction activities, regulate the flux of energy and matter through an environment. These processes are sustained by organisms with specific life history traits, and the variety of organisms is called biodiversity. Biodiversity, which refers to the varieties of species, genes, and ecosystems, enhances certain ecosystem services.Ecology is not synonymous with environment, environmentalism, natural history, or environmental science. It is closely related to evolutionary biology, genetics, and ethology. An important focus for ecologists is to improve the understanding of how biodiversity affects ecological function. Ecologists seek to explain: Life processes, interactions and adaptations The movement of materials and energy through living communities The successional development of ecosystems The abundance and distribution of organisms and biodiversity in the context of the environment.Ecology is a human science as well. There are many practical applications of ecology in conservation biology, wetland management, natural resource management (agroecology, agriculture, forestry, agroforestry, fisheries), city planning (urban ecology), community health, economics, basic and applied science, and human social interaction (human ecology). For example, the Circles of Sustainability approach treats ecology as more than the environment 'out there'. It is not treated as separate from humans. Organisms (including humans) and resources compose ecosystems which, in turn, maintain biophysical feedback mechanisms that moderate processes acting on living (biotic) and non-living (abiotic) components of the planet. Ecosystems sustain life-supporting functions and produce natural capital like biomass production (food, fuel, fiber and medicine), the regulation of climate, global biogeochemical cycles, water filtration, soil formation, erosion control, flood protection and many other natural features of scientific, historical, economic, or intrinsic value.The word ""ecology"" (""Ökologie"") was coined in 1866 by the German scientist Ernst Haeckel (1834–1919). Ecological thought is derivative of established currents in philosophy, particularly from ethics and politics. Ancient Greek philosophers such as Hippocrates and Aristotle laid the foundations of ecology in their studies on natural history. Modern ecology became a much more rigorous science in the late 19th century. Evolutionary concepts relating to adaptation and natural selection became the cornerstones of modern ecological theory.
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