A/biotic factors Flashcards
abiotic factors
Nonliving components of environment.
light intensity
abiotic factor - The level of light received on a plant surface
temperature
abiotic factor -A measure of how hot or cold something is.
moisture levels
abiotic factor - necessary for the survival of most plants and specific humidity levels or water sources are essential for most organisms
soil pH content
abiotic factor - The pH of soils can have a huge effect on the plants that are able to grow in them. Some plants, like azaleas, grow best in acidic soils and will quickly die if planted in alkaline soils. Others, like clematis, prefer alkaline soils
water content
abiotic factor - Different species have evolved to survive at different pH levels found within water
soil mineral content
abiotic factor -Many plants require high levels of soil minerals to grow well. An example of this is magnesium, which is required to produce chlorophyll. Plants with unnaturally yellow leaves may have a magnesium deficiency. Carnivorous plants, such as pitcher plants, have evolved to catch insects to supplement the low levels of minerals found in the soils in which they grow.
wind intensity and direction
abiotic factor -can affect the rate of transpiration in plants, can damage organisms and can help some organisms to disperse
biotic factors
Factors that are living or produced by living things.
food availability
biotic factor - spatial and temporal presence of food
new predators
biotic factor - a new species enters an area and begins feeding on a different species that originally had fewer organisms eating it
new pathogens
biotic factor, organisms can be severely affected by the introduction of new diseases
out-competition
The introduction of a new species into an ecosystem can result in it out-competing another native species.
biotic factors
food availability, new predators, new pathogens,
abiotic factors
light intensity, temperature, moisture levels, soil pH content, water content, soil mineral content, wind intensity and direction
