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Populations and Ecosystems (Soil factors (pioneers, A horizon, B horizon,…
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- In biology, a population is all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.
- Community, also called biological community, in biology, an interacting group of various species in a common location.
- An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
- place where an organism or a community of organisms lives, including all living and nonliving factors or conditions of the surrounding environment.
- components or biotic factors, can be described as any living component that affects another organism, or shapes the ecosystem.
- In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
- is defined as the average state of everyday's weather condition over a period of 30 years. It is measured by assessing the patterns of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods of time. Climate differs from weather, in that weather only describes the short-term conditions of these variables in a given region.
- Just as species have geographic ranges, they also have tolerance ranges for the abiotic environmental conditions. In other words, they can tolerate (or survive within) a certain range of a particular factor, but cannot survive if there is too much or too little of the factor.
- species is the first to colonize an ecosystem previously disturbed or damaged.
- is uppermost and is sometimes called the zone of leaching.
- are commonly referred to as the subsoil. They are a zone of accumulation where rain water percolating through the soil has leached material from above and it has precipitated within the B horizons or the material may have weathered in place.
- C horizon is relatively unaffected by the processes of soil formation and therefore does not exhibit as much internal layering.
- is a situation in which two populations do not grow as well together as they do separately because they use the same limited supply of resources.
- Mutualism describes the ecological interaction between two or more species where each species benefits. Mutualism is thought to be the most common type of ecological interaction, and it is often dominant in most communities worldwide.
- the inevitable elimination from a habitat of one of two different species with identical needs for resources.
- The specific area where an organism inhabits. (ecology) The role or function of an organism or species in an ecosystem.
- DescriptionIn evolutionary ecology, an ecotype, sometimes called ecospecies, describes a genetically distinct geographic variety, population or race within a species, which is genotypically adapted to specific environmental conditions.
- 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).
- pecies possess relatively stable populations and tend to produce relatively low numbers of offspring; however, individual offspring tend to be quite large in comparison with r-selected species.
- species are those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood (i.e., high r, low K).
- is the science of populations. Demographers seek to understand population dynamics by investigating three main demographic processes: birth, migration, and aging (including death).
- the natural arrangement and apportionment of the various forms of animals and plants in the different regions and localities of the earth.
