What is the population of ecology explain, Biology

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What is the Population of Ecology explain?

Ecology is also studied at a higher level of organization the population level. In biological terms, a population is defined as a group of individuals of the same species that occupy a given physical space or geographic area. For example, all of the snapping turtles in a pond, all the people living on Maui, all of the Volvox (a species of green algae) living in an aquarium, or all of the rats living in a given neighborhood each represent populations. Therefore, population ecology addresses the interrelationships between populations and other populations, and the relationships between the population as a grouping and its environment.

The population level of organization is very often used as a key indicator in understanding environmental conditions. Whether the size of a population is increasing or decreasing can reflect changing physical or biological factors. Populations have a specific niche that is, each population has its own characteristic size, density, distribution, role in energy flow, and role in nutrient cycling. So if a population grows, it will impact its environment in a variety of ways. Conversely, the environment can impact upon the populations size and distribution, among other things.

  1. Population Size
  2. Patterns of Distribution

In nature, individuals within populations show different patterns of dispersion. Populations are usually dispersed three different ways: evenly (or regularly), randomly, or clustered (clumped). Clumped distributions can reflect many different causes presence/absence of nutrients or water, perhaps substrate, or even sunlight. Uniform or regular distributions usually indicate a territory defined by an animal, a limited water supply, or perhaps even defensive chemicals, which are produced by plants to ensure enough resources for all. Random distributions are normally found in populations such as fish in a pond, or trees in a forest. Random patterns are not as common as are clumped or even ones in nature.

  1. Even
  2. Clumped
  3. Random
  4. Density

Population density is another important ecological concept that is studied by scientists. The concentration of individuals within a population can act as an influencing factor. For example, if the numbers of individuals increases, resources may become limiting, or heightened competition for a mate could result in behavioral changes within a population. Conversely, if there are too few individuals within a population, the chances for meeting a suitable mate to reproduce decrease, which could further reduce the size of the population.


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