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BIOLOGICAL DIVERSITY
BIOLOGICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
BIOLOGICAL DIVERSITY
The term BIODIVERSITY (from “biological diversity”) refers to the variety Of life
on earth at all its levels, from genes to habitat, and Can encompass the
evolutionary, ecological, and cultural processes that Sustain life.
Biodiversity includes not only species we consider rare, threatened, or
endangered but also every living thing , from humans to organism.
BIOLOCICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
SPECIES RICHNESS AND SPECIES EVENNESS
Species richness in the number of different species represented in an
Ecological community, landscape or region. Species richness is simply a
Count of species, and it does not take into account the abundance of
The species or their relative abundance distributions.
Species evenness is a description of the distribution of abundance
Across the species in a community. Species evenness is highest when
all species in a sample have the abundance
SPECIES RICHNESS AND SPECIES EVENNESS
Having observe a higher number of species in an area does not mean
It is more diverse. It rather means that it is more “species rich.” if one
Compares two habitat based on only the number of species, the such
A comparison would not provide any conclusive evidence on their
difference in diversity. To know if the habitat is diverse, one needs
Data on the relative abundance of each species.
BIOLOCICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
GENETIC DIVERSITY
Genetic Diversity refers to the range of different inherited traits within a species.
In a species with high genetic diversity, there would be many individuals with
a wide variety of different traits. Genetic diversity is critical for a population to
adapt to changing environments
GENETIC DIVERSITY
Genetic Diversity examples
•Different breed on a certain animals for the desired trait.
•Different varieties of crops, flowers, and plants.
GENETIC DIVERSITY
Importance of Genetic Diversity
•It helps in evolution of species
•It is important in agricultural activity
Conservation of Genetic Diversity
•Gene bank
•Store seeds
BIOLOCICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
HABITAT DIVERSITY
ECOSYSTEM DIVERSITY is the variety of ecosystem that are present in the biosphere
or the life sphere of earth. An ecosystem is made up of interacting
biotic and abiotic factors. Ecosystem diversity focuses on both
terrestrial and aquatic ecosystems. Also, it includes the variation
of a biological community such as the number of levels of ecosystem diversity
and different niches or habitat diversity, and other ecological processes.
HABITAT DIVERSITY
The range of different habitats in an ecosystem, community
or biome associated with the variety of niches that may be
Exploited by different species. Conservation of habitat diversity
usually leads to the conservation of species and genetic diversity.
HABITAT DIVERSITY
Physical and biological characteristics of a HABITAT.
the physical factors include the nature of the soil
availability of land, sunlight, temperature, and climate conditions.
the biological factors include the availability of food
and the presence and absence of predators.
MAJOR TYPES OF HABITAT
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Forest
Grasslands
Deserts
Mountains
Polar regions
Aquatic Habitats
BIOLOCICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
LANDSCAPE DIVERSITY
LANDSCAPE DIVERSITY refers to particular position on the
Spatial scale dimension or larger and consistent of a diversity
Or interacting abiotic and biotic system each characterized by a
Specific geodiversity and biodiversity.
LANDSCAPE DIVERSITY
BIOTIC AND ABIOTIC FACTORS
LANDSCAPE DIVERSITY
Importance of biotic and abiotic system in landscape diversity
-The significance of abiotic and biotic factor comes in their interaction with other for a community or
an ecosystem to survive the correct interaction need to be in place a simple example would of abiotic
interaction in plants.
LANDSCAPE DIVERSITY
Human activities that causes negative effect in landscape
diversity?
BIOLOCICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
PATTERN IN SPECIES
Species diversity is determined not only by the number of species within a biological community—i.e., species
richness—but also by the relative abundance of individuals in that community.
Species diversity contributes to ecosystem health. Each species is like a thread holding together an ecosystem.
If a species disappears, an entire ecosystem can start to unravel. Species diversity is Crucial for ecosystem
health
Examples of Species Abundance
Bees as Polinators
BIOLOCICAL DIVERSITY
SPECIES
RICHNESS AND
SPECIES
EVENNESS
GENETIC
DIVERSITY
HABITAT
DIVERSITY
LANDSCAPE
DIVERSITY
PATTERN IN
SPECIES
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