BIODIVERSITY Flashcards
refers to the variety of life on the Earth.
biodiversity
the degree of
variation of life forms within a given species,
ecosystem, biome, or an entire planet.
biodiversity
a measure of the health of ecosystems.
biodiversity
TYPES OF BIODIVERSITY
GENETIC DIVERSITY
SPECIES DIVERSITY
ECOSYSTEM DIVERSITY
It refers to the variation at the level of individual genes and provides a mechanism for populations to adapt to their ever-changing environment.
GENETIC DIVERSITY
refers
to the different types of living organisms on Earth.
SPECIES DIVERSITY
a group or population of similar
organisms that reproduce by interbreeding within the group.
SPECIES
the variety of
biological communities, such as forests, deserts, grasslands and
streams that interact with one another and with their physical
and chemical (nonliving) environments.
ECOSYSTEM DIVERSITY
VALUES OF BIODIVERSITY
consumptive value
productive value
ethical value
aesthetic value
THREATS TO BIODIVERSITY
HABITAT DESTRUCTION
POACHING
MAN-WILDLIFE CONFLICTS
played a key role in
extinctions, especially related to tropical forest destruction.
HABITAT DESTRUCTION
Factors contributing to habitat loss are:
overpopulation,
deforestation,
pollution (air pollution, water pollution, soil contamination) and
global warming or climate change.
Illegal trade of wildlife products by killing prohibited
endangered animals
POACHING
Wildlife starts causing immense damage and danger to man and under such conditions it becomes very difficult for the forest department to pacify the affected villages and gain local support for wildlife
conservation.
MAN-WILDLIFE CONFLICTS
