Vocabulary
Define ecological succession
Predictable changes in an ecosystem after a disturbance
How do humans contribute to the risk of biodiversity with exotic species?
Humans like to bring invasive and exotic species to non-native areas. This could be harmful to biodiversity because these pets could harm plants and animals. They could carry diseases.
Where are biodiversity hotspots located?
Tropical rainforest
Coastal areas
Islands
What is the climax community?
Hardwood Trees
After a glacier melts the area would go through which type of succession?
Primary
A species critical to the functioning of an ecosystem
Keystone species
How do humans contribute to the risk of biodiversity with pollution?
When humans pollute the environment they can kill off ecosystems. With biodiversity when something in one ecosystem dies it can affect other ecosystems.
What is a biodiversity hotspot.
An area where endemic species live.
Why is succession a positive thing?
It creates a new environment that could have more biodiversity
What is one similarity between primary and secondary succession
They both result in a climax community
Define niche
The role an organism plays in an ecosystem
How does humans hunting contribute to the risk of biodiversity?
Humans help put biodiversity at risk by hunting because they are not letting the animal population grow back fast enough.
What is the criteria for biodiversity hotspot? (1 and 2)
Have lost 70% of the original species
High number of endemic species
What are the three aspects of biodiversity?
Genetic, ecosystem, and species
The simplest measure of biodiversity is the number of ___________ that live in a certain area.
species
Define biodiversity
The variety of life in a specific area
How do humans contribute to the risk of biodiversity with invasive species?
Humans like to bring invasive species to non-native areas. This could be harmful to biodiversity because these pets could harm plants and animals. They could carry diseases.
What are the three main ways that humans affect biodiversity?
Overexploitation, pollution, habitat destruction
The more species there are, the _____________ is the biodiversity of the area.
greater
Organisms only found in one place.
Endemic species
How do humans contribute to the risk of biodiversity with poaching.
Humans help put biodiversity at risk by poaching because they are only killing for their benfit and they are not letting the animal population grow back fast enough.
Illegal hunting and killing of animals for one's benefit.
Poaching
Which type of succession is "faster"?
Secondary
Diseases are more likely to spread in an ecosystem with high biodiversity than in an ecosystem with low biodiversity.
False