Biodiversity 4.2 Flashcards
What does biodiversity mean?
Measure v
A measure of variation found in the living world
What is a habitat?
Where an organism lives
Definition of species?
A group of organisms that can freely interbreed to product fertile offspring
Definition of species diversity?
Apple and peanut butter gelly
Individual organisms that are very similar in appearance, anatomy, physiology, genetics and biochemistry.
Define species richness
The number of plant species?
Define species evenness?
The degree
The degree in which species are represented
Definition of genetic diversity
The variation of individuals belonging to the same species
Define random sampling?
Disadvantage
Advantages
Random generated coordinates
May not cover the whole area of habitat equally
Ensures that the data is not based on selective sampling
Non-random sampling- Opportunistic
Advantage
Disadvantage
Researchers make sampling decisions based on the prior knowledge
A- Faster and easier than random sampling
D- The data may be biased
Non-random sampling- stratified (half)
Divide habitat into area which appear differently
A-areas will not be on under-represented or miss certain area
D- some areas may be over- represented
Non-random- Systematic sampling
Samples are taken at fixed intervals, including belt & line transects
A- Data taken form habitat with clear difference.
D- Only species within the line and belt trans
What are the uses of the keystone species sugar maple tree?
- roots access..
- foliage..
- shade
- 🍁🍯
- roots access deep water in soil and transfer water to dry shallow regions
- foliage produces covering canopy cool and moist: soil organisms to thrive
- shade provide undergrowth: tree to grow
- sap: provides food
Economic reasons to maintain genetic biodiversity?
- Regulation ato
- Purification
- fert 🪴W
- detox of recy..was
-💉
-Regulation of the atmosphere and climate
-purification and retention of freshwater
-fertilization of soil
-Detoxification of recycled waste
-Discovery of medicine
Economic reasons to maintain genetic biodiversity?
- Regulation ato
- Purification
- fert 🪴W
- detox of recy..was
-💉
-Regulation of the atmosphere and climate
-purification and retention of freshwater
-fertilization of soil
-Detoxification of recycled waste
-Discovery of medicine
What is it called to pass a.. to reduce activities such as
- logging
- clearing land for development or agriculture?
What are some limitations
- registrations
- countries governments my not be in favor for it
