Ecosystem
In ecology, the word
ecosystem is an abbreviation
of the term, ecological
system. Some consider this
the basic unit in ecology.
Ecosystems are not to be
confused with biomes because
they are smaller than
... > full story
Ecological niche
In ecology, a niche is a
term describing the
relational position of a
species or population in an
ecosystem. More formally,
the niche includes how a
population responds to the
abundance of its resources
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Ecological succession
Ecological succession, a
fundamental concept in
ecology, refers to
more-or-less predictable and
orderly changes in the
composition or structure of
an ecological community.
Succession may be initiated
... > full story
Agroecology
Agroecology is the science
of applying ecological
concepts and principles to
the design, development, and
management of sustainable
agricultural systems.
Agroecology is the science
of sustainable agriculture;
... > full story
Browse Reference Articles
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Biodiversity
Biodiversity or biological diversity is the diversity of life. There are a number of definitions and measures of biodiversity. Biodiversity is commonly identified at three levels. First there is ... > more -
Slash and burn
Slash and burn (a specific practice that may be part of shifting cultivation or swidden-fallow agriculture) is an agricultural procedure widely used in forested areas. Although it was practised ... > more -
Transgenic plants
Transgenic plants are plants that have been genetically engineered, a breeding approach that uses recombinant DNA techniques to create plants with new characteristics.They are identified as a class ... > more -
Ocean acidification
Ocean acidification is the name given to the ongoing decrease in the pH of the Earth's oceans, caused by their uptake of anthropogenic carbon dioxide from the atmosphere. Between 1751 and 2004 ... > more -
Zebra mussel
The Zebra mussel (Dreissena polymorpha) is a bivalve mussel native to freshwater lakes of southeast Russia. Zebra mussels are currently causing serious problems in North America and Sweden, where ... > more -
Environmental effects of fishing
Environmental impacts of fishing are the ecological changes brought about on the wider environment of the growth in global demand for fish as a food source, and to a lesser extent, for the aquarium ... > more -
Old growth forest
Old growth forest, sometimes called late seral forest or ancient forest or primary forest is an area of forest that has attained great age and exhibits unique biological features. Old growth forests ... > more -
Eutrophication
Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. Eutrophication can be a natural process in lakes, occurring as ... > more -
Phytoplankton
Phytoplankton refers to the autotrophic component of the plankton that drifts in the water column. Most phytoplankton are too small to be individually seen with the unaided eye. Phytoplankton, like ... > more
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