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Year 13 Populations in Ecosystems Keywords

Across
A typical species that succeed lichens
Examples of this type of factor include competition and predation
Used to estimate the area within a quadrat that a particular plant species covers
Organism that feeds on another organism
The range and variety of genes, species, and habitats within a particular region
Stable state consisting of a balanced equilibrium of species
Changes to the species that occupy a particular area
Used to prevent bias when conducting random sampling
Ecological succession when land that has already sustained life is suddenly altered
Type of competition that occurs between members of different species
When there are no more individuals of a species left
Management of the Earth's natural resources by humans
Examples include: light intensity, temperature, wind speed, concentration of carbon dioxide, soil pH
Down
Used to measure the abundance of motile organisms
Metal square used in sampling
What may restrict the growth of a population
Populations of different species
The total mass of living material
The size of population of a species that an ecosystem can support
Number of individuals of one species that occupy the same habitat at the same time
How an organism fits into the environment
How many times a species occurs in a quadrat
Species that first colonise an inhospitable environment
A long tape measure or line placed across an area when sampling
Place where an organisms lives