Concept Structure And Function Of Ecosystem Pdf

File Name: concept structure and function of ecosystem .zip
Size: 15315Kb
Published: 08.05.2021

An ecosystem, a term very often used in biology, is a community of plants and animals interacting with each other in a given area, and also with their non-living environments. The ecosystem relates to the way that all these different organisms live in close proximity to each other and how they interact with each other. For instance, in an ecosystem where there are both rabbits and foxes, these two creatures are in a relationship where the fox eats the rabbit in order to survive.

Ecosystems: Concept, Structure and Functions of Ecosystems (with diagram)

We have loaded Previous years questions with explanations Like and Follow us on Facebook and Telegram for latest updates As already discussed in the previous article, Ecosystem is the structural and functional unit of ecology where living organisms interact with each other and also with the surrounding physical environment. In other words, it is the whole community in which plants and animals live together. For example, Tropical rain forest with its trees, animals etc. In the year , AG Tansley coined the term ecosystem.

According to Tansley, ecosystem consists of organisms and inorganic components in a relatively stable equilibrium. As per E P Odum, ecosystem is the basic functional unit of organisms and their environment interacting with each other.

In an ecosystem, biotic and abiotic components are inseparably inter-related. These components interact with each other. As ecosystem is an open system, the energy and the components can easily flow throughout the boundaries. Mainly there are two types of ecosystems.

Namely terrestrial ecosystem and aquatic ecosystem. It can be further divided into the following types,. Aquatic ecosystem: This is the ecosystem which exists in water. It can be further divided into,. Abiotic components: It is the nonliving component of the ecosystem.

The abiotic components of the ecosystem include basic inorganic elements and compounds like soil, water, oxygen and a variety of organic compounds. Also some physical factors like humidity, wind and water currents, solar energy etc. In terms of nutrition, biotic components can be grouped as autotrophs and heterotrophs. Autotrophs include green plants which make their own food with the help of sunlight and other inorganic matter.

Heterotrophs include non-green plants and all animals which depend on autotrophs for their food needs. On a broader scale biotic components includes producers, consumers and decomposers.

Producers- Producers are the autotrophic elements of the ecosystem. They use radiant energy of the sun during the process of photosynthesis whereby carbon dioxide is assimilated and the light energy is converted into chemical energy.

Consumers- These are the members of the ecosystem which consume the food prepared by the producers and hence are called as consumers. The following are different classes included in consumers,. Primary consumers: These are herbivorous animals which are dependent on the green plants for their food. For example, insects, cow, deer, buffalo, goat etc. Secondary consumers: These are carnivorous and omnivorous animals which feed on primary consumers and producers or both.

For example, sparrows, fox, crow, snake etc. Tertiary consumers: These are the top carnivorous animals which feed on other carnivorous, herbivorous and omnivorous animals. For example, lion, tiger, vulture, hawks etc. Scavengers and parasites: These are the parasitic plants and animals which make use of the living tissues of different plants and animals. The scavengers use dead remains of animals and plants as their feed.

Decomposers and transformers- These are living components of the ecosystem. Decomposers and transformers help to maintain the dynamic structure of ecosystems. The decomposers attack dead remains of producers and consumers. Decomposers degrade the complex organic substances into simpler compounds. Whereas the transformers change the organic compounds into inorganic forms that are suitable for reuse by the producers or green plants.

For example, Fungi and Bacteria. Ecosystem: Introduction, Types, Structure and Functions Posted on : Posted by : Admin Ecosystem: Definition As already discussed in the previous article, Ecosystem is the structural and functional unit of ecology where living organisms interact with each other and also with the surrounding physical environment.

Types of Ecosystem Mainly there are two types of ecosystems. Namely terrestrial ecosystem and aquatic ecosystem 1. It can be further divided into the following types, Forest ecosystem Grassland ecosystem Desert ecosystem 2.

On a broader scale biotic components includes producers, consumers and decomposers Producers- Producers are the autotrophic elements of the ecosystem. The following are different classes included in consumers, Primary consumers: These are herbivorous animals which are dependent on the green plants for their food.

Login to post your comment here Disclaimer Privay Policy Contact Us.

Service Unavailable in EU region

In biology, an ecosystem is a community of organisms and their physical environment. The notion of an ecosystem recognizes the many ways that an organism interacts with and depends on various parts of its environment. The ecosystem idea generalizes the "food chain" and "food web" concepts, allowing for more relationships than just consumption. For example, plants provide not just food for animals but also shelter, shade, moisture, etc. While organisms in an ecosystem may be engaged in competition or predation, the concept focuses on interdependence — one organism's reliance on another or on the ecosystem as a whole.

What is an Ecosystem?

Ecosystem , the complex of living organisms, their physical environment , and all their interrelationships in a particular unit of space. A brief treatment of ecosystems follows. For full treatment, see biosphere. An ecosystem can be categorized into its abiotic constituents , including minerals , climate , soil , water , sunlight , and all other nonliving elements, and its biotic constituents, consisting of all its living members.

1.3. Structure and Function of Ecosystem

The functional attributes of the ecosystem keep the components running together. Ecosystem functions are natural processes or exchange of energy that take place in various plant and animal communities of different biomes of the world.

Welcome to Scribd!

Ecosystem : Structure and function. Organisms interact with each other and also with the physical conditions that are present in their habitats. Tansley Ecosystem is the major ecological unit. It has both structure and function. The structure is related to species diversity.

Выпустите меня отсюда. - Ты ранена? - Стратмор положил руку ей на плечо. Она съежилась от этого прикосновения. Он опустил руку и отвернулся, а повернувшись к ней снова, увидел, что она смотрит куда-то поверх его плеча, на стену. Там, в темноте, ярко сияла клавиатура. Стратмор проследил за ее взглядом и нахмурился Он надеялся, что Сьюзан не заметит эту контрольную панель. Эта светящаяся клавиатура управляла его личным лифтом.

Сьюзан до сих пор была ошеломлена ловкими действиями коммандера. Он разыграл звонок по телефону. И в результате одолел Хейла, освободил Сьюзан и выиграл время для переделки Цифровой крепости. Сьюзан с опаской посмотрела на связанного шифровальщика. Стратмор сидел на диване, небрежно положив берет-ту на колени. Вернувшись к терминалу Хейла, Сьюзан приступила к линейному поиску.

В феврале того года, когда Энсею исполнилось двенадцать, его приемным родителям позвонили из токийской фирмы, производящей компьютеры, и предложили их сыну-калеке принять участие в испытаниях новой клавиатуры, которую фирма сконструировала для детей с физическими недостатками. Родители согласились.

На этот раз послышались длинные гудки. Фонтейн насчитал уже шесть гудков. Бринкерхофф и Мидж смотрели, как он нервно шагает по комнате, волоча за собой телефонный провод. Директор АНБ напоминал тигра на привязи. Лицо его все сильнее заливалось краской.

Да еще хвастался, что снял ее на весь уик-энд за три сотни долларов. Это он должен был упасть замертво, а не бедолага азиат.  - Клушар глотал ртом воздух, и Беккер начал волноваться. - Не знаете, как его зовут. Клушар на мгновение задумался и покачал головой: - Понятия не имею.

4 Response
  1. Jasmine M.

    Ecosystem functions are subset of ecological processes and ecosystem structures. Each function is the result of the natural processes of the total ecological sub-.

  2. Г‰lodie T.

    Ecosystem constitutes a dynamic complex of plant, animal and micro-organism communities and their non-living environment, interacting as a functional unit (e.g., a lake, grassland, or a forest ecosystem). ii. Ecosystem structure is a network of interactions between abiotic and biotic components of the system.

  3. Jeremy M.

    To enhance our understanding of ecology and ecosystem, we shall have a small review of these terms.

Leave a Reply