B16 - Adaptations, Interdependence and Competition Flashcards
distribution
where species are found within an ecosystem, often affected by abiotic and biotic factors
interdependence
when different populations rely on each other
community
group of interdependent living organisms, of all species, in an ecosystem
biotic factors
living factors affecting populations and communities
ecosystem
an area where communities live
abiotic factors
non living features of the environment
examples of abiotic factors
- water - rivers/lakes/oceans
- soil
- human development
- light intensity
- wind speed and direction
examples of biotic factors
- plants
- animals
- predation
- disease
what factors affect living organisms
- light intensity
- temperature
- soil mineral content
- availability of CO2
how does light intensity affect living organisms
light limits photosynthesis - affects the distribution of plants and animals
how does temperature affect living organisms
limits photosynthesis - affects size of plants and therefore the distribution of carnivores and herbivores
how does soil mineral content affect living organisms
more nitrates and minerals - affects distribution of plants, carnivorous plants
how does availability of carbon dioxide affect living organisms
CO2 availability is a limiting factor for plant growth - affects distribution of organisms
what do animals compete for
- territory
- food and water
- mates
how are animals adapted to be successful when competing for food
- herbivores feeding on the same kind of plant
- carnivores feeding on the same kind of prey - often small creatures like mice
- fast running, sharp claws etc to compete with their own species
