Key Words for Biodiversity under Threat
- Created by: Pol08
- Created on: 02-06-17 10:44
Key Term
Definition
Alien Species
A species introduced outside its normal distribution. Invasive alien species are alien species whose establishment and spread modify ecosystems, habitats, or species.
Anaerobic
Respiration without the need for oxygen
Aquaculture
the rearing of aquatic animals or the cultivation of aquatic plants for food
Biodiversity
The variety of plant and animal life in the world or in a particular habitat, a high level of which is usually considered to be important and desirable.
Biodiversity hotspots
Biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction. The term biodiversity hotspot specifically refers to 25 biologically rich areas around the world that have lost at least 70 percent of their original habitat. They are the most remarkable areas.
Biomass
The total quantity or weight of organisms in a given area or volume.
Biome
A large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra.
Buy-back
Buying something that was previously owned or sold
Carbon Sequestration
The removal and storage of carbon from the atmosphere in carbon sinks (such as oceans, forests or soils) through physical or biological processes, such as photosynthesis.
Conservation
Preservation or restoration from loss, damage, or neglect: manuscripts saved from deterioration under the program of library conservation. b. The protection, preservation, management, or restoration of wildlife and of natural resources such as forests, soil, and water.
Coral Bleaching
Coral bleaching is a process whereby the coral colonies lose their colour, either due to the loss of pigments by microscopic algae (living in symbiosis with their host organisms (polyps), or because these have been expelled.
Cultural services
This grouped ecosystem services into four broad categories: provisioning, such as the production of food and water; regulating, such as the control of climate and disease; supporting, such as nutrient cycles and crop pollination; and cultural, such as spiritual and recreational benefits.
Eco-region
1. An area defined in terms of its natural features and environment.
Eco-system diversity
Ecosystem diversity refers to the variety of ecosystems in a given place. Within any broader landscape there is a mosaic of interconnected ecosystems. To conserve biodiversity, conservation at the landscape level is critical.
Endemic
Disease that occurs regularly in a particular area, as malaria does in many tropical countries, is said to be endemic.
Endemism
Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere.
Eutrophication
Excessive richness of nutrients in a lake or other body of water, frequently due to run-off from the land, which causes a dense growth of plant life.
Genetic Diversity
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