chap 13 Flashcards
refers to the number, variety, and variability of organisms in
a particular area.
Biodiversity
is defined as the measure of the number of species on the planet
or in a specified area.
biodiversity
is the variation of living things making the world a beautiful and
exciting place to live.
biodiversity
measure of the variety of
versions of the same genes within individual species,
Genetic Biodiversity
the number of different kinds of organisms within individual communities or
ecosystems,
Species Biodiversity
the number of niches, trophic levels,
and ecological processes that capture, sustain food webs and recycle
materials within this system.
Ecological Biodiversity
biodiversity can
be measured by determining the _______________.
biodiversity index
indicates the total number of species in an area
Species Richness
shows how evenly the species are represented in the area.
Species Evenness
What Threatens Biodiversity most?
Human-caused species loss
referring to habitat destruction (mangrove
destruction, mining, slash- and-burn, natural habitat conversion for
human use and monoculture;
Land-use changes-
referring to water-borne pollutants from leaching, nitrogen
fertilizer use; chemicals from factories, human wastes; noise pollution,
light pollution, and sonar pollution.
Pollution-
referring to killing, poaching, and selling
endangered species of plants and animals.
Resource Exploitation
it threaten the survival of native species.
Introduction of exotic or invasive species
HIPPO”
Habitat destruction, Invasive species, Pollution, Population growth, and
Overharvesting.