Biodiversity:. number. different types. A measure of the _______ of _____________ of organisms in an ecosystem. LOW biodiversity makes an ecosystem _______. HIGH biodiversity makes an ecosystem _______. weaker. stronger. BIODIVERSITY. - PowerPoint PPT Presentation
BIODIVERSITY LOW biodiversity makes an ecosystem _______. HIGH biodiversity makes an ecosystem _______. weake r strong er Some conservationists feel that focusing on threatened areas with higher biodiversity is Conservationists are people who work to save organisms and ecosystems. But since their resources are limited, and there are many ecosystems in threat, they have to decide where to focus their efforts. A measure of the _______ of _____________ of organisms in an ecosystem. numberdifferent types Biodiver sity:
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BIODIVERSITY
LOW biodiversity makes an ecosystem _______.
HIGH biodiversity makes an ecosystem _______.weaker stronger
Some conservationists feel that focusing on threatened areas with higher biodiversity is the best approach.
Conservationists are people who work to save organisms and ecosystems. But since their resources are limited, and there are many ecosystems in threat, they have to decide where to focus their efforts.
A measure of the _______ of _____________ of organisms in an ecosystem.
number different typesBiodiversity:
by ______ activities. and which are under _____
BIODIVERSITY
Hotspots: Places with _______________threat
high biodiversity
A measure of the _______ of _____________ of organisms in an ecosystem.
number different typesBiodiversity:
human
and __ more are under consideration.
• There are ___ hotspots
and have lost ___% of its primary vegetation.
by ______ activities. and which are under _____
BIODIVERSITY
Hotspots: Places with _______________threat
high biodiversity
A measure of the _______ of _____________ of organisms in an ecosystem.
number different typesBiodiversity:
human
• It has to have at least _____ native plants
• What makes a place a hotspot?
701500
259
and which it depends on to __________________.
HABITATThe natural environment in which a ___________species lives
meet all of its needsHabitats:
What is the #1 REASON that species become endangered or go extinct in
TERRESTRIAL ecosystems?
Habitat Destruction
and which it depends on to __________________.
HABITATThe natural environment in which a ___________species lives
meet all of its needsHabitats:
What is the #1 REASON that species become endangered or go extinct in
AQUATIC ecosystems?
Over Fishing and Harvesting
Deforestation
Desertification
Soil Erosion
Sedimentation of Waterways
Urbanization
Large Scale Habitat DestructionHABITAT
What do you think was here before?
Without plant roots, there’s nothing to hold on to the soil when it rains in
wet climates.
For lumber, agricultural land, pasture lands or
creating towns.
Without plant roots, there’s nothing to trap water and hold it in the soil in drier climates.
• Its role is determined by ______________ with the biotic and abiotic components of its ecosystem.
What is the ecological niche of the deer?
• It is a herbivore which eats a variety of plants in the forest. This prevents
these plants from overpopulating.
• It provides food for its predators and carrion for scavengers.
The specific ____ a species performs in its ecosystem.
role
how it interacts
• It provides the soil with nutrients from its manure.
Ecological Niche:
ECOLOGICAL NICHE
What is the ecological niche of a bee?
• Its role is determined by ______________ with the biotic and abiotic components of its ecosystem.
The specific ____ a species performs in its ecosystem.
role
how it interacts
Ecological Niche:
• It pollinates different flowers to allow them to produce seeds and offspring.
• They feed their own group of predators.
ECOLOGICAL NICHEAre any two ecological niches EXACTLY THE SAME?
Compare
eats rodents eats rodents
active at night active at day
hunts in forests hunts in grasslands
nests in lowtrees
nests in tall trees
• This ___________________ and makes room for many species.
• Niches can _______ , but are ___________________. overlap never exactly the samedecreases competition
OWL HAWK
GROUPINGS OF LIFEINDIVIDUAL:
POPULATION:
COMMUNITY:
ECOSYSTEM:
BIOME: BIOSPHERE:
One organism in a population of the same species.
A group of individuals of a species in an area.
All populations of all species in an area.
A community and its abiotic environment.A group of similar
ecosystems.The sum of all the
ecosystems on the Earth.
Each group of life gets more complex as you move forward.
or of the _____ species but of different breeds, strains or varieties.
A species is a group of individuals who:
Are the following three organisms the same species?
+ =MuleHorse Donkey
The ________ of two organisms of similar but ________ species,
NOT THE SAME SPECIES
Healthy but
infertile.Are ______ in appearance.Breed in ______ environments.Can produce _______ and _____ offspring.
What makes individuals members of the same species?
offspring differentsame
naturalhealthy fertile
similar
SPECIESSpecies:
1)2)3)
Hybrid:
+ =
All tigers are in Asia and
most lions are in Africa (few
in Asia).
A species is a group of individuals who:
Do the following four organisms belong to the same species?
Are ______ in appearance.Breed in ______ environments.Can produce _______ and _____ offspring.
naturalhealthy fertile
similarSpecies:
1)2)3)
Liger
Tiger Lion
Tigon
NOT THE SAME SPECIESMost hybrids are created in
captivity.
SPECIES
A species is a group of individuals who:Are ______ in appearance.Breed in ______ environments.Can produce _______ and _____ offspring.
naturalhealthy fertile
similar
SPECIESSpecies:
1)2)3)
+ =
Pizzly Bear HybridPolar Bear Grizzly Bear
Are they the same species?What about these three?
Polar bears and grizzly bears do not live in the same habitat so they cannot breed together in natural environments.
NOT THE SAME SPECIES
Then how did this
happen?
But with the melting pack ice, their territories are beginning to overlap more…
They usually would be natural enemies.
Grrrrr, don’t mess with me!
Get a mint! Your breath stinks!
perhaps…SPECIES
But with the melting pack ice, their territories are beginning to overlap more…
What lovely eyes you have.
perhaps…
I never noticed how pretty your
ears were!
SPECIES
In the Northwest Territories in 2006, Jim Martell, a big game hunter, got a
licence to hunt a polar bear.
After tracking for several hours, his Inuit trackers led him to a polar bear
and he shot it.
But it wasn’t a polar bear, it was a
pizzly bear.
SPECIES
One of the only few wild specimens ever
found.
+ =
SPECIESA species is a group of individuals who:
Are ______ in appearance.Breed in ______ environments.Can produce _______ and _____ offspring.
naturalhealthy fertile
similarSpecies:
1)2)3)
Shih Tzu
Are these three organisms members of the same species?
ALL DOMESTIC DOGS ARE MEMBERS OF THE
SAME SPECIESShihpooPoodle
All domestic dogs came from the domestication of the grey wolf several tens of thousands of years ago. Though different breeds of dogs have arisen, they are still genetically capable of breeding to create healthy (depending on the breed) offspring.
What about human hybrids?SPECIES
Just Kidding!
Naomi Campbell Lisa RayKristin KreukBlack/Chinese Bengali/Polish
White/Black/Native/Asian
Chinese/DutchAmerie
Korean/Black
Tiger Woods Michael Lee Chin Cameron DiazBob MarleyChinese/BlackWhite/Black Native/White
SPECIES What do all of these people have in common?They are all REAL human hybrids.
and _______ so that ecosystems can remain ______ ,__________productive
The ability to live in a manner that ensures that the resources used today are _________ and ________
ENVIRONMENTAL SUSTAINABILITY
What can these animals tell us
about living sustainably?
Penguin
Leopard
Polar Bear
Dog
Eels
Cows
Supermarket
Hippo
The Story of Stuff healthy
Sustainability:preserved
reneweddiversefor _______________ to come.many generations
