Ecological Succession
what is 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
The number of species present in an ecosystem is
what is species richness
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)
recreation and scenic areas for tourism are examples of what type of ecosystem service?
cultural services
pioneer species
This type of disruption occurs during seasonal changes
periodic natural disturbances
When a habitat is vulnerable to collapse, this type of species is usually the first to be lost, due to their niche habitats and feeding preferences.
What are specialists?
How does the size of an island affect its biodiversity?
smaller size = less biodiversity
larger size = more biodiversity
Trees provide shade/lower local temperatures.
What is a regulating service?
Low shrubs and trees that require a lot of sunlight.
What are intermediate or mid-successional species?
Hurricanes happen during a certain time of the year and are known to reoccur. What type of natural disturbance is this?
What is episodic natural disturbances
an organism that is not indigenous, or native, to a particular area.
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
examples of disruptions of ecosystem service by an anthropogenic activity
increase air pollution because of burning fossil fuels
habitat loss, deforestation, pollution ect.
Recolonization of an ecosystem after a wildfire.
What is secondary succession?
This type of disturbance has no predictable quality, like a meteor hits the earth and starts an ice age.
random disturbance
when an organism is pushed outside its range of tolerance, what are it's three options?
migration, adaptation, extinction
what is one reason why an island ecosystem might be less diverse than an ecosystem on the mainland?
islands are limited by size/resources
mainlands are easier to migrate to and have more space
utilizing trees for their lumber is an example of what type of ecosystem service?
provisioning services
What is it called when a community reaches its most productive state
climax community
time and size
the range of conditions that show ecological tolerance of a species
temperature, salinity, flow rate and sunlight
explain how keystone species and trophic cascades are related
keystone species have a large effect on their ecosystems, and can impact multiple trophic levels thus causing a trophic cascade
Mangroves mitigate storm damages along coastlines.
What are regulating services?