B4 - Ecology in the local environment Flashcards
What is distribution of species affected by?
- the presence of other living organisms such as predators or herbivores, which eat them
- physical factors such as soil type and water availability
What is biodiversity?
The variety of different species living in a habitat is called biodiversity.
What are the two types of ecosystems?
- natural, such as lakes and native woodland
- artificial, such as fish farms and forestry plantations
What are artificial ecosystems?
Artificial ecosystems have been made by humans.
What are ecosystems?
A biological community of interacting organisms and their physical environment.
What is a habitat?
A habitat is where a plant or animal lives.
What is a community?
A community is all of the animals and plants together living in e.g a garden.
What is a population?
A population is the number of a particular organism in the community.
What is a transect line?
A line across an area to sample organisms.
What is biodiversity?
The variety of plant and animal life in the world or in a particular habitat
Do natural ecosystems have large or low biodiversity?
Natural ecosystems have a large biodiversity.
What is the difference between an ecosystem and and a habitat?
An ecosystem describes living things and their environment but a habitat describes the place where the living things live.
What do self supporting systems provide?
- a wide variety of food
- food throughout the year
- shelter at different heights above ground or depth in water
- a natural environment
Explain why a forestry plantation of pine trees will have a low biodiversity.
They will have a low biodiversity because small plants cannot compete for light and will die.
What does zonation mean?
The categorization animals based on their distribution in a habitat as determined by environmental factors.
