abiotic factors

Cards (8)

what abiotic factors effect a community?
light intensity
temperature
moisture levels
soil pH and mineral content
wind intensity and direction
c02 levels for plqnts
o2 levels for aquatic animals
how does light intensity affect communities?
can limit photosynthesis
affect distribution of plants and animals
affect plant growth and chlorophyll distribution
affect breeding cycles of plant and animal species
how does temperature affect communities?
is a limiting factor on photosynthesis
in cold climates, it is always limiting
how do moisture levels affect communities?
if there is no water, there will be little to no life
plants and animals are rare in desert
after rain, plants may grow
how does soil pH and mineral content affect communities?
nitrate ions are needed in carnivorous plants to break down animal proteins
pH of soil has an affect on what can grow in it and on the rate of decay, releasing mineral ions back into the soil
how does wind intensity affect comminuties?
tree shape and landscape is affecting in areas with a prevailing wind direction. plants transpire quickly
how does the availability of o2 affect communities?
has ah huge impact on water-living organisms. most fish need a high level of dissolved oxygen. o2 in air varies little
how does c02 availability affect communities?
it is a limiting factor on photosynthesis and plant growth.
can also effect distribution of organisms eg mosquitos attracted to food