Ecological Succession
Ecological succession occuring on bare rock
What is Primary Succession?
Name the species: figs, wolves
If I remove these species the enetire ecosystem will start to collapse
What are keystone species?
Name the EService: running and bicylcing in the park
What is cultural services?
A barnacle species (Chthamalus) can survive across the entire intertidal zone when grown alone. In nature, it is found only in the upper intertidal zone, where a competing barnacle species (Balanus) cannot survive the dry conditions.Where is it's fundamental niche?
What is the entire intertidal zone?
The death of the last member of a species
What is extinction?
Ecological succession that takes place where an existing community has been cleared (by distrubance events such as fire, tornado, or human impact) but the soil has been left in tact
What is secondary succession?
Species used as a standard to evaluate the health of an ecosystem
What are indicator species?
Name the ES: The river providing us with potable water
What is provisioning service?
An individual's ability to survive and reproduce
What is fitness?
Name the three zones on the ecological tolerance curve
What is optimal zone, zone of intolerance, Physiological stress?
The final stage of succession in which there is a dynamic balance between the abiotic and biotic componets of the community; it consists of old growth forests and high biodiversity
What is climax community?
The theory that the number of species on an island is determined by a balance between immigration (colonization) and extinction rates, which are influenced primarily by the island’s size and distance from the mainland.
Theory of Island Biogeography
Name the service: waste decomposition and detoxificiation, purification of water and air; pest and disease control
What are regulating services?
A trait that improves an individual's fitness
Two types of speciation
Process where a natural habitat is reduce or when development occurs that isolates the habitat
Theory of Island Biogeograhy is based on these two factors:
What is immigration and extinction?
Name the ES: primary production, nutrient recycling and soil formation; pollination
What are supporting services?
On a tolerance curve, which zone has the highest population density and growth?
What is the optimal range?
The process of speciation that occus with geographic isolation
What is allopatric speciation?
Lichen, moss, algae, bacteria are know as this in succession
What are pioneer species?
At boundaries there is greater species diversity and biological density than there is in the heart of the ecological communities. AKA the increased environmental changes and altered species interactions that occur where two habitats meet
What is edge effect?
Benefits that humans receive from the ecoystems in nauter when they function properly
What is an ecosystem service?
Name one biotic factor that can make a realized niche smaller than a fundamental niche.
What is competition, predation, and parasitism?
A random change in genetic code
What is mutation?