The Abundance And Distribution Of Organisms In A Habitat Flashcards
1
Q
What physical attributes are assessed first in a new habitat and why?
A
- Soil composition
- Rainfall
- Temperature
Because they determine the number of plants and animals.
2
Q
Who can animal abundance be measured?
A
Capture-mark-recapture then use the Lincoln index
Use kick counting in a stream and count the aquatic vertebrates
3
Q
How can plant species be measured?
A
- Using a quadratic to calculate the mean of several quadrants in a given area
- Percentage cover
- Percentage frequency
4
Q
How are non- uniform habitats assessed?
A
A transact is used to identify the variation of organisms in correlation with an abiotic factor. Kite diagrams are then used.
5
Q
How are uniform habitats assessed?
A
The position of outermost plants can be marked on a map and the area surrounding can be measured.
6
Q
How are motile animals assessed?
A
By direct observation of individuals or their nests/faecal deposits/markings on vegetation.
