Biological Diversity
(biodiversity)
"The variability among living organisms from all sources
including, inter alia, terrestrial, marine and other aquatic ecosystems and the
ecological complexes of which they are a part; this includes diversity within species
and of ecosystems” [Convention
on Biological Diversity, 1992]
Biodiversity is defined as the collection of genomes, species, and
ecosystems occurring in a geographically defined region. [Understanding Marine
Biodiversity: A Research Agenda for the Nation, 1995, Committee on Biological
Diversity in Marine Systems, National Research Council
Council]
Zoologists and botanists typically consider biodiversity to refer to the variation and
frequency of organisms within a given area, whereas evolutionary biologists may
prefer to include in this definition the genes that contribute to the variation
within a species as well.
In either case, biodiversity can generally be defined as the total composition of
evolutionary units in a given environment. [BIODIVERSITY: THE BIG (AND EVEN
BIGGER) PICTURE, Joseph McPhee, 2003]
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