Ecosystems Flashcards
Define habitat
The place where organisms live
Define population
All the organisms of 1 species in a habitat
Define community
Populations of all species in a habitat
Define ecosystem
A community plus the abiotic factors factors in the area
Define abiotic factors
The non living components of an ecosystem
Define biotic factors
The moving components of an ecosystem
Define niche
The role of a species in an ecosystem
Define adaption
A feature on a species that increase chance of survival and resproductive success
Give an example of a biotic niche
What an organism eats And what organisms eats them
Give an example of a abiotic niche
The oxygen the organisms breathes in and the CO2 it breathes out
How many species occupy a niche
Only 1
It’s unique to a species
What happens if 2 species try to occupy the same niche
They will compete with each other
One species will be more successful than the other
Name 3 types of adaptions
Anatomical
Physiological
Behavioural
How are otters adapted to abiotic factors
Webbed feet
Walk on land and swim
Increasing chance of survival by hunting on land and sea
How are seals adapted for biotic factors
Blubber
Keep warm in cold seas
Increasing chance of survival by being able to live in a place with lots of food and low competition
How are hedgehogs adapted to abiotic factors
Hibernation
Lower rate of metabolism to conserve energy increasing chance of survival
How do otters adaort to biotic factors
Use rocks to open shellfish
Increase chance of survival by gaining access to another food source
How do male frogs adapt to biotic factors
Mating calls
More easily attract a mate
How do bacteria adapt to biotic factors
Produce antibiotics
Killing other species of bacteria in the same area
Reducing competition
Increasing chance of survival
Define population size
Total number of 1 species in a habitat
What is the carrying capacity
The maximum stable population that an ecosystem can support
Give example of abiotic factors
Light
Water availability
Temp
Why does optimum temp for an organism increase growth and reproduction
Ideal temp for metabolic reactions
Don’t use up as much energy maintaining internal body temp
More energy used for growth and successful reproduction
What is interspecific competition
Competition between different species for the same resources eg. Food
