Overview

pyramid of numbers

Return to overview »

Results | All related links for this item | 1-6 of 6 results for:


Refine by type

Refine by product

 

carnivore

Overview page. Subjects: Biological Sciences.

An animal that eats meat, especially a member of the order Carnivora (e.g. tigers, wolves). Carnivores are specialized by having strong powerful jaws and well-developed canine teeth. They...

See overview in Oxford Index

ecological pyramid

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

Graphical representation of the trophic structure and function of an ecosystem. The first trophic level, of producer organisms (usually green plants), forms the base of the pyramid, with...

See overview in Oxford Index

food chain

Overview page. Subjects: Biological Sciences.

In ecology (1), a hierarchy of organisms in which each is consumed as food by one or more of the ones above it. See also pyramid of numbers.

See overview in Oxford Index

pyramid of biomass

Overview page. Subjects: Biological Sciences.

A diagrammatic representation of the amount of organic material (see biomass), measured in grams of dry mass per square metre (g m−2), found in a particular habitat at ascending trophic...

See overview in Oxford Index

pyramid of energy

Overview page. Subjects: Biological Sciences.

A diagrammatic representation of the amount of energy, measured in kilojoules per square metre per year (kJ m−2 yr−1), available at ascending trophic levels of a food chain in a particular...

See overview in Oxford Index

trophic level

Overview page. Subjects: Biological Sciences.

The position that an organism occupies in a food chain. For example, green plants (which obtain their energy directly from sunlight) are the primary producers; herbivores are primary...

See overview in Oxford Index