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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

biodiversity

see DIVERSITY.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
The AMS also recognized the need for transboundary cooperation among countries to address key biodiversity issues; and strengthening linkages among Asean pillars, such that cross-sectors should be part of action plans, allowing different sectors to be engaged in one another's activities.
BioDiversity Solutions Australia Managing Director, Rod Barnaby says BDS came up with the concept of a biodiversity credit marketplace after consulting with a wide-range of stakeholders to better understand the challenges and potential benefits of the Biodiversity Offset Scheme.
ASEAN said drivers of the region's biodiversity loss are ecosystems and habitat change, climate change, invasive alien species, pollution, poverty and over-exploitation due to deforestation, land and water use changes, wildlife hunting and trade for food.
According to the International Union for Conservation of Nature, Cyprus' biodiversity is considered to be at risk and is identified as vulnerable.
He appreciated IUCN for compiling the report in record time as it was a challenge to review the impact of such a mega project on biodiversity as effects on biodiversity were not a one day process rather it had short term and long term repercussions.
The second edition of the Asean Biodiversity Outlook, a publication by the Asean Centre for Biodiversity, reported that in 2014, the region produced 210 million tonnes of rice and 41 million tonnes of corn.
"The workshop is very important as it means the biodiversity database which we are still looking at very much, even at the regional and sub-regional level, where there is no biodiversity database," he noted that the Biodiversity Database targets different types of users, researchers, students and decision-makers in order to facilitate the decision-making process where the targeted information can be easily accessed by browsing the site.
It is also envisioned to foster transparency and accountability on investments made for biodiversity thereby increasing both public and private sector participation to unlock capital towards sustainable biodiversity financing.
Many, for example, have signed onto the global Business and Biodiversity Pledge that was introduced at the CBD gathering in Mexico in 2016.
Despite the rise of biodiversity-friendly practices, the report urges more efforts to be exerted to stop the loss of biodiversity for food and agriculture, calling upon governments and the international community to address, amongst other things, the major drivers of biodiversity loss.
"The workshop is part of a series of ASEAN advocacy on mainstreaming biodiversity ndash the integration of conservation and sustainable use of biodiversity in development sectors such as health, agriculture, fisheries, forestry, science, technology and education.
Mohammed Mubarak bin Daina chaired the session, on behalf of His Majesty's Personal Representative, SCE President, Head of the National Steering Committee for Biodiversity, His Highness Shaikh Abdulla bin Hamad Al-Khalifa.

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