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The Living World: Biodiversity! (Natural Disruptions to Ecosystems…
The Living World: Biodiversity!
Natural Disruptions to Ecosystems
Habitat destruction
Urbanization
Mining
Deforestation
Invasive species
Kudzu
Asian Carp
Zebra Mussel
Pollution
Water
Soil
Air
Noise
Light
Population
Larger human population stresses the environment
Climate change
Overuse of fossil fuels
Overexploitation
Overfishing
Overhunting
Ecological Tolerance
Ecological Tolerance
https://www.youtube.com/watch?v=Eo9bJVx6iyI
Law of Tolerance Diagram
A law stating that
the population or the density of an organism
can be
controlled by certain factors
(e.g. the climatic, topographic, and biological requirements of plants and animals) where levels of these exceed the maximum or minimum limits of tolerance of that organism.
Ecosystems Lab
Species relationships (Commensalism, Mutualism, Parasitism, etc.)
Competition amongst organisms (light intensity)
Ecological Niches
Trophic structure
Importance of soil temperature & pH
Topography
Adaptations
genetic change to increase the
survival rate of an organism
leads to biological evolution of species and can lead to formation of new species
Structural
Behavioral
Adaptations
https://youtu.be/kVaF-O0cVoo
Island Biogeography
The Theory of Island Biogeography states that larger islands closer to the mainland have higher biodiversity than smaller islands further from the mainland. This theory is also applied to isolated habitats on land.
The Theory of Island Biogeography Explained (video with article)
https://study.com/academy/lesson/island-biogeography-theory-definition-graph.html
Ecological Succession
Process of ecosystem development brought about by changes in community composition and the product of a climax community.
Intermediate Species
Climax Community
Pioneer Species
Facilitation
One species modifies the environment to the extent that it meets the needs of another species
Inhibition
One species modifies the environment to an extent that it is no longer suitable for another species.
Tolerance
Species are not affected by the presence of other species
Primary Succession
Secondary Succession
Ecosystem Services
Provisioning Services
Food
Fuel wood
Fiber
Timber
Regulating Services
Water partitioning
Pest regulation
Climate regulation
Pollination
Cultural Services
Spiritual
Recreational
Aesthetic
Educational
Support Services
Hydrological cycle
Soil formation
Nutrient cycling
Primary production
Intro to Biodiversity
Genetic Diversity
Range of genetic traits
Species Diversity
number of different species inhabiting a specific area
Ecosystem Diversity
large genetic diversity
large number of different species
Large number of organisms of different species
abundant natural resources
complex food webs involving a variety of ecological niches
Ecosystem Services (video)
https://www.khanacademy.org/science/biology/biodiversity-and-conservation/ecosystems-ecosystem-services/v/ecosystem-services
CrashCourse Ecological Succession
https://youtu.be/jZKIHe2LDP8
Natural Disruptions to Ecosystems
https://www.youtube.com/watch?v=5eTCZ9L834s
Biodiversity Introduction (article with video)
https://www.pbl.nl/en/Introduction-biodiversity
Species relationships review article:
https://www.khanacademy.org/science/high-school-biology/hs-ecology/hs-ecological-relationships/a/hs-ecological-relationships-review
