Abiotic factors are any non-living factors that affect an organism or shape its environment. These include:
Changes in abiotic factors can affect the number of organisms in a population and the rate of growth.
Temperature affects the rate of photosynthesis. As the temperature rises, the enzymes involved can work faster. Due to this, there is an increase in the rate of plant growth.
An increase in temperature also means that animals are able to spend less energy trying to keep warm.
Animals and plants both need a sufficient amount of water to survive.
Plants need light for photosynthesis and the rate of photosynthesis affects the rate of plant growth.
In areas of slow plant growth, there will be fewer plants for organisms to eat.
The pH of soil affects the rate of decay, which in turn affects how fast mineral ions return to soil for uptake by plants.
Different species of plants thrive under varying nutrient concentrations.
Wind affects the rate of transpiration in plants.
Transpiration plays a role in the rate of photosynthesis by transporting water and mineral ions from the roots to the leaves.
The carbon dioxide levels affect the rate of photosynthesis in plants.
Oxygen concentrations in water are typically lower than in the air. Aquatic animals have adapted to survive in water, but only some can only survive in water with low concentrations of oxygen.