studying ecosystems Flashcards
1
Q
distribution
A
where individual organisms are found within an ecosystem
can be uneven, depends on biotic and abiotic factors
2
Q
how to measure distribution
A
random sampling
systematic sampling
3
Q
sample
A
a portion, piece, or segment that is representative of a whole
4
Q
why is a sample important
A
usually impossible to count all the plant/animals present in an area bc it would be time consuming and damage the environment
5
Q
random sampling
A
frame quadrats
point quadrats
6
Q
systematic sampling
A
measurements taken at regular intervals
measures gradual change
line transect
belt transect
7
Q
abundance
A
the number of individuals of a species in a given space at the given time
8
Q
abundance of organisms
A
number fluctuate daily due to immigration, emigration, births and deaths
