Competition Flashcards
Definition of habitat?
Place where organisms live
Definition of pouplation?
All the organisms of one species living in a habitat
Definition of community?
Population of different species living in a habitat
Definition of ecosystem?
interaction of the community of living organisms with the non-living parts of the enviroment
What is interdependence?
When each species depend on eachother for things like food, shelter, pollunation and seed dispersal
What does the change of interdependence mean?
it can have major effects on the ecosystems
What happened to the stonefly larvae?
Loads of the population were killed because of being sensitive to polution
What effect did this have on the blackfly larvae?
They will have a less competition for algae and they will be more likely to be eaten by predators
What effect did this have on the water spider?
They will have less food
What effect did it have on the stickleback?
Less food
What happens in some ecosystems?
Species and enviromental factors are in balance so that the population sizes are roughly constant these are called stable communities