biodiversity


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biodiversity

(bī′ō-dĭ-vûr′sĭ-tē)
n.
1. The number and variety of species found within a specified geographic region.
2. The variability among living organisms on the earth, including the variability within and between species and within and between ecosystems.

biodiversity

The existence of complex flora and fauna in an ecosystem; the genetic diversity of natural organisms. Biodiversity increases the overall productivity of a plot of land, and maximises its resistance to disturbances—e.g., drought. In prairie ecosystems stressed by drought, recovery to a normal state of productivity was more rapid in experimental plots of vegetation with the greatest biodiversity, a finding that supports the need to maintain biodiversity.

Loss of biodiversity—i.e., a reduction in the number of species, subspecies and strains—will be disastrous for the planet's ecosystem. An example would be growing a crop food, e.g., corn or rice, from only one highly productive, rapid-growing, spoil-resistant strain—while seemingly having all the desirable features, if the strain became susceptible to a particular pathogen, all those dependent on the crop could face famine.

Marine biodiversity may be in a state of ecological crisis due to coastal development—e.g., destruction of estuaries, motorised marine vessels, ocean dumping, oil spills, overfishing with trawling of the ocean floor and subsequent disruption of bottom communities and coral reefs, overwhaling, pollutant runoffs, and toxic tides due to eutrophication.

biodiversity

see DIVERSITY.
References in periodicals archive ?
Among the matters to be discussed will be the transformation of the biodiversity, bioprospecting and biotrade sectors and the hunting industry, the issue of colour variants and selective breeding in the wildlife sector and the development of business models and innovation networks in the bioprospecting sector.
He said that biodiversity Pakistan was facing different threats and there was a need to protect biodiversity for future generation by adopting the practical measures.
Biodiversity and ecosystem services' key importance of achieving the vision represented in creating a safe world where water is available.
In this section, we examine interlinkages in the implementation of the biodiversity-related conventions in LAC countries with a view toward exploring whether, and to what extent, the biodiversity cluster and national biodiversity policies in the region have coevolved.
According to a report published in the July issue of BioScience, climate change is beating biodiversity as a media, scientific, and philanthropic priority.
There is no clear evidence that biodiversity offsetting works - attempts abroad have frequently ended in failure.
I am convinced that local authorities have a key role to play in conserving biodiversity, through their role in: developing and influencing local policies and strategies; planning and development control; owning and managing their land; procurement; education and awareness raising.
DELEGATES of several Middle East and North African states have started discussions at a regional workshop hosted by Qatar to prepare for the 5th edition of national reports on Biodiversity Agreement.
Gillian Maggs-Kolling, the importance of celebrating Biodiversity Action Day lies in the fact that about 70% of the population directly depends on natural resources for income, food, health, fuel and shelter.
The theme Water and Biodiversity was chosen to coincide with the United Nations designation of 2013 as the International Year of Water Cooperation.
Lafarge Group and WHC have a long history of working together on biodiversity projects: The Council is a member of the producer's Advisory Panel on biodiversity, created in 2006 to advise on strategy and contribute ideas to improve and develop it.

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