An ecosystem can be defined as a system that retains the physical, chemical, and biological components of its system, is resilient against change, and has an energy source. The term ecosystem is often used to describe the environment. In a natural setting, an ecosystem is a complex system that has a variety of relationships and interdependencies.
Resilient to withstand change
In ecological literature, resilience has been defined as the capacity of an ecosystem to endure a change or disturbance. This concept has expanded to include the ability of ecosystems to recolonize lost space and the ability of a population to supply new recruits. Resilience is best secured in a system with diverse connected ecological components that can respond to stress and strain. In addition, resilience is likely to be enhanced when there is feedback across spatial scales.
Although resilient systems are often considered a positive feature of a system, they can still suffer damage from change. For example, a lake can become eutrophic if nutrients become too abundant. This condition can result in hypoxia and the death of desirable fish species, and increase the population of unwanted pests.
Has an energy source
The Sun is a major source of energy for organisms and ecosystems. Plants absorb specific wavelengths of light and convert it into chemical energy. They also fix carbon dioxide from the air. This energy is then used by many organisms to produce organic matter. This process begins the flow of energy in an ecosystem and can be seen in the food web.
Energy is necessary for an ecosystem to function properly. For this reason, sun is an important source of energy. For example, plants can use sunlight to create oxygen and carbon dioxide. The sun is also an energy source for decomposers, which break down dead plants and return vital nutrients to the soil.
In addition to sunlight, a healthy ecosystem must also have an energy source. In fact, the energy needed by an ecosystem is stored in its biomass. The biomass produced by ecosystems can be divided into two types – primary and secondary production. The former is the amount of biomass produced per unit area during a certain period. This energy is stored as heat and biomass, which is then utilized by plants and algae. These plants and algae use the energy produced from the sun to fix carbon dioxide into simple sugars.