Titian ecology 2

Ecosystem

A natural unit of abiotic and biotic factors working together to make a stable self perpetuating system

Food chain

A graphical representation of the transfer of energy and nutrients from one irganism to another in an ecological community

Food web

A system of interlocking and interdependent food chains

Primary productivity

The rate at which primary producers convert energy to storage of organic molecules like sugar and starch, measured in joules per unit time

Primary production

The amount of energy converted measured in joules

Gross primary productivity

The rate at which energy us incorporated by green plants in photosynthesis

Net primary production

Biomass that is available for heterotrophs in subsequent trophic levels at any given time

Biomass

Matter produced by photosynthesis

Pyramid

Graphical representation of feeding relationships and energy transfers between trophic levels in a food chain.

Ecology

Study of how living organisms affect each other and the world they live in

Biomes

large plant communities created and maintained by specific climates

Habitat

physical area that is inhabited by a particular species

Micro habitat

sub set of conditions within a habitat

Nitrogen fixing

It is the path by which Nitrogen is introduced into the biotic side of ecosystem

Fixing

Incroprating the substance into the biotic side of an ecosystem the the abiotic environment

Community

A group of interacting populations occupying the same area at the same time.

Population

A group of organisms of the same species that occupy the same area at the same time.

Ecological species

Set of organisms having the same niche

Biological species

Closely related organisms capable of interbreeding and producing fertile offspring

Biodiversity

The variety of organisms present in an ecosystem

Community

A group of interacting populations within the same area at the same time

Population

A number of organisms from the same species in the same area at the same time

Ecological species

A set of organisms that have the same niche

Biological species

A group of closely related organisms of the same species that are capable of producing fertile offspring

Biodiversity

A variety of organisms in an ecosystem

Species diversity

The number of species of planst and animals in the same region

Genetic diversity

Variation of organisms of the same species because of genes

Ecosystem diversity

Brought about by the difference in interactions of different organisms with other organisms and the abiotic factors of the environment

Biotic Potential (exponential growth)

The maximum rate that a population can grow in ideal conditions

Logistic growth (environmental resistance)

The real rate at which a population grows which is determined by the biotic and abiotic factors working against the populations growth.