Ecological Succession
an ecological succession that starts with bare rock, can be caused by volcanic eruptions or glacial retreat
primary succession
animals moving from one place to another seasonally is called what?
migration
A species who's presence or absence can be used to determine the health of an ecosystem
indicator 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)
recreation and scenic areas for tourism are examples of what type of ecosystem service?
cultural services
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
periodic natural disturbances
when an organism is pushed outside its range of tolerance, what are it's three options?
migration, adaptation, extinction
How does the size of an island affect its biodiversity?
smaller size = less biodiversity
larger size = more biodiversity
an organism that is not indigenous, or native, to a particular area.
an ecological succession that starts from ecological disturbances such as fires or hurricanes
secondary succession
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
Define ecological tolerance
a set of conditions that an organism thrives under
more biodiversity=______resiliency of an ecosystem
less biodiversity=______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
One example of an anthropogenic disturbance that can disrupt an ecosystem service.
What is: an increase air pollution because of burning fossil fuels
habitat loss, deforestation, pollution ect.
a 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 disturbance
one example of an environmental stressors/ natural disturbances?
wildfires, hurricanes, tornadoes and flooding
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
when a community reaches its most productive state
climax community
a major ecological disturbance that contributes to the positive feedback loop of melting ice caps and rising sea levels
climate change
Example of abiotic conditions that affect the ecological tolerance of a species
temperature, salinity, flow rate and sunlight
two characteristics of biodiversity
species evenness and species richness
give an example of a regulating service
water cycle, pollination, clean air, decomposition