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 ?
However, Mr Botsoma said biodiversity was faced with challenges, especially from mankind, through the spread of invasive species, climate change and the degradation of habitats.
But too few leaders have shown any sense of urgency about stemming biodiversity losses.
She added the fund will go a long way in encouraging coastal communities to enhance their ongoing biodiversity initiatives.
The Dimensions of Biodiversity program links functional, genetic and phylogenetic dimensions of biodiversity, offering opportunities to produce rapid advances in understanding the creation, maintenance and loss of biodiversity.
Speaking on the occasion, Special Secretary Environment Kamran Shah said survival of biodiversity is imperative for survival of mankind.
The PBSAP is the country's road map in conserving biodiversity and critical ecosystem services for the next 13 years.
He was of the view that students are saviors of our future and they should take proactive participation in activities like plantation to protect biodiversity.
United Nations General Assembly shows keen interest in biodiversity and encourages the utilisation of the Strategic Plan for Biodiversity 2011-2020, which include Aichi Targets and adopted by CBD to put a development plan and understands how biodiversity and water security enhance each other.
Our findings suggest that while climate change could be deflecting attention from biodiversity loss in terms of funding, in other areas the sentiment shared by many conservationists that biodiversity loss is now a secondary issue could be a result of a comparatively quicker rise in prominence of climate change," Dr.
Finally, if you wish to celebrate Biodiversity then why not join me for a litter-pick of one of Barry's most beautiful beaches on (bank holiday) Monday between 3pm and 4pm.
We collected empirical evidence from interviews with government officials with political and/or technical responsibilities in the implementation of the Convention on Biological Diversity (CBD) and national biodiversity strategies, and explored it through thematic analysis in order to answer the research questions.
Participants representing the GCC, Iraq, Lebanon, Yemen, Egypt, Libya, Tunisia, Morocco and Algeria at the workshop will be trained on how to prepare a biodiversity report.

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