Ecological Succession
The main difference between primary and secondary succession
Primary starts with bare rock, secondary starts with soil
Animals moving from one place to another seasonally is called what?
Migration
A species who is able to survive a wide range of conditions
Generalist species
When comparing two islands, one 5km away and one 30 km away, which island would likely have more biodiversity?
The island closer to the mainland (5km away)
Differential ability to survive and reproduce
Plant or animal species that has a disproportionally large effect on its environment relative to its abundance
Keystone species
This type of disruption occurs during seasonal changes. It is frequent and predictable.
Periodic natural disturbances
What are examples of environmental stressors/ natural disturbances? (there's a few correct answers to choose from - you can just name one)
Wildfires, hurricanes, tornadoes, flooding
How does the size of an island affect its biodiversity?
smaller size = less biodiversity
larger size = more biodiversity
Define invasive species
an organism that is not indigenous, or native, to a particular area.
The regrowth of a forest after a forest fire would be an example of (primary or secondary succession)
Secondary succession
Hurricanes happen during a certain time of the year and are known to reoccur, but aren't always predictable. What type of natural disturbance is this?
Episodic natural disturbances
Define ecological tolerance
The set or range of abiotic conditions that an organism can survive under
How does biodiversity affect the resiliency of an ecosystem?
more biodiverse= more likely to survive bc variety of species
less biodiverse= not likely to survive due to low species variation
NPP = GPP - R
Species that first colonize rock and turn it into soil?
Pioneer species
This type of disturbance has no predictable quality, like a meteor hits the earth and starts an ice age.
Random natural disturbance
A species whose presence or absence can be used to determine the health of an ecosystem
Indicator species
When comparing two islands, one 100m2 and one 300m2, which island would likely have more biodiversity?
300m2 (the larger one)
13 calories (rule of 10: producers get 13,000 --> primary consumers get 1,300 --> secondary consumers get 130 --> tertiary consumers get 13)
When a community reaches its most productive state
Climax community
This is an ecosystem's ability to remain unchanged when being subjected to disturbance
Resistance
Which type of ecosystem would you expect organisms to have a wider range of tolerance for changes in salinity (saltiness)? The ocean floor, or an estuary?
Estuary (bc it has a mix of fresh and marine water)
Name one way that humans might introduce new species to an island
By accident via boating, on purpose for pets or livestock
(other examples might count)
Define primary productivity
The rate (or speed) at which producers (or autotrophs) synthesize new biomass/energy/glucose.