Abiotic variables affecting spatial distribution and range of tolerance

How is the distribution of a species where it lives shown

on a map

What are the two main abiotic varibales thta affect animal dsitribution

water availaibility and temperature

What are plant distirbutions affected by

temperature, water availability, light intensity, soil pH, soil salinity, availability of nutrients

What is the range of tolerance

indicates the maximum and minimum limits of abiotic variables that the organism can withstand

How do we investigate the range of tolerance

the use of a transect (belt/line)

How does a line transect work

organisms found at the regular ample points are recorded

How does a bel transect work

quadrats are placed at regular sample points and the abundance of organisms within each is recorded