Which is a community of living organisms where they live and interact with each other?

Ecosystems and habitats

The thin layer of the Earth's surface where living things are able to survive is called the biosphere. It is about 20km thick, from the bottom of the oceans high up into the atmosphere. Physical conditions outside the biosphere are too extreme to support life. Ecosystems are discrete, recognisable, self-sustaining units within the biosphere, such as woodlands, ponds, salt marshes and rocky shores. Every ecosystem has a living (biotic) component, i.e. the organisms that live there, and a non-living (abiotic) component, i.e. the physical conditions in which an organisms live, such as landscape, climate and type of soil. Specific and readily quantifiable abiotic factors might include temperature, pH, humidity, wind direction, water current, light quality, nutrients, pollutants, salinity, slope, aspect and altitude. An organisms environment refers to the complete range of conditions in the ecosystem which affect its way of life, not only abiotic factors but biological factors such as competition for food, space and shelter. The study of how living organisms interact with each other and with their environment is called ecology.

Although ecosystems are relatively self-contained and perpetuate themselves by the cycling of minerals, they are not completely closed as if surrounded by an invisible box. There is some movement of energy and materials between them. All the energy entering an ecosystem ultimately comes from the sun; sediment is eroded from hills, transported by streams and deposited in ponds; animals may enter and leave, perhaps on a large scale (e.g. migratory birds, butterflies and fish) or on a smaller scale (e.g. a woodpigeon flying from a wood to feed in a meadow). However, this two-way traffic between ecosystems is limited because animals are usually adapted to the particular conditions of only one ecosystem. Sometimes the natural boundaries between ecosystems overlap or are hard to define, such as those between rivers, estuaries and the sea.

The specific place where an organism lives is called its habitat. Habitats may exist on a range of scales: woodland is a habitat for spotted woodpeckers; an individual tree may provide the habitat for certain mosses, bark beetles; individual leaves provide a habitat for leaf miners, although at this small scale we might call it a microhabitat. The body of a host animal or plant provides a habitat for an internal parasite.

Contents

Diversity of organisms
Species interaction
Adaption
Diversity
Self assessment (1)
Micro-organisms
Self assessment (2)

The word ecosystem means ecological systems. Ecology is the study of ecosystems

An ecosystem includes all the living things (plants, animals and organisms) in a given area, interacting with each other, and with their non-living environments (weather, earth, sun, soil, climate, atmosphere). In an ecosystem, each organism has its own niche or role to play.

Ecosystems are the foundations of the Biosphere and they determine the health of the entire Earth system.

Sir Arthur George Tansley (1871 –1955) was an English botanist who introduced the concept of the ecosystem into biology

Ernst Heinrich Philipp August (1834 –1919) was a German biologist, naturalist philosopher, physician, professor, marine biologist, and artist who discovered, described and named thousands of new species mapped a genealogical tree relating all life forms invented many words commonly used by biologists today, such as phylum, phylogeny, and ecology.

An ecosystem is a community of living organisms (plants, animals and microbes) in a particular area.

The term `eco' refers to a part of the world and `system' refers to the co-ordinating units. An ecosystem is a community of organisms and their physical environment interacting together. Environment involves both living organisms and the non-living physical conditions. These two are inseparable but inter-related. The living and physical components are linked together through nutrient cycles and energy flows.

The organisms in an ecosystem are usually well balanced with each other and with their environment. An ecosystem may be natural or artificial, land-based or water-based. Artificial systems may include a cropland, a garden, a park or an aquarium. Introduction of new environmental factors or new species can have disastrous results, eventually leading to the collapse of an ecosystem and the death of many of its native species. Some of the major non-living factors of an ecosystem are: Sunlight Water Temperature Oxygen Soil Air

How big is an ecosystem?

Ecosystems can be of any size, but usually they are places. An ecosystem may be of very different size. It may be a whole forest, as well as a small pond. An ecosystem may be as large as the Great Barrier Reef or as small as the back of a spider crab's shell, which provides a home for plants and other animals, such as sponges, algae and worms.

Ecosystem boundaries are not marked (separated) by rigid lines. Ecosystems are often separated by geographical barriers such as deserts, mountains, oceans, lakes and rivers. As these borders are never rigid, ecosystems tend to blend into each other. Therefore, a lake can have many small ecosystems with their own unique characteristics. As a result, the whole earth can be seen as a single ecosystem, or a lake can be divided into several ecosystems, depending on the used scale. Scientists call this blending “ecotone”

Ecosystem diversity

Ecosystem diversity is the variety of ecosystems in a given place. An ecosystem is a community of organisms and their physical environment interacting together. For food, shelter, growth and development, all life systems interact with the environment. This is why it is necessary to preserve the ecosystems.

Scales of Ecosystems

Ecosystems come in indefinite sizes. It can exist in a small area such as underneath a rock, a decaying tree trunk, or a pond in your village, or it can exist in large forms such as an entire rain forest. Technically, the Earth can be called a huge ecosystem.

Ecosystems can be classified into three main scales.
Micro: A small scale ecosystem such as a pond, puddle, tree trunk, under a rock etc.
Messo: A medium scale ecosystem such as a forest or a large lake.
Biome: A very large ecosystem or collection of ecosystems with similar biotic and abiotic factors such as an entire Rainforest with millions of animals and trees, with many different water bodies running through them.

Which is a community of living organisms where they live and interact with each other in a specific environment?

Ecosystem: The collection of all living organisms in a geographic area, together with all the living and non-living things with which they interact.

What is a community of organisms interacting with each other?

An ecosystem consists of a community of organisms interacting with its physical environment. For the sake of convenience, ecosystems can be broadly categorised into aquatic ecosystems and terrestrial ecosystems.

What is a community of organisms living together called?

An ecosystem consists of a community of organisms together with their physical environment. Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial. Broad categories of terrestrial ecosystems are called biomes.

What do you call a community of living and non living things interacting with each other?

An ecosystem is a community made up of living and nonliving things interacting with each other. Nonliving things do not grow, need food, or reproduce. Some examples of important nonliving things in an ecosystem are sunlight, water, air, wind, and rocks. Living things grow, change, produce waste, reproduce, and die.