Post 4: Sampling Strategies

User:  | Open Learning Faculty Member: 


The 3 sampling methods I used were area based random or systematic (1) , area based haphazard (2) and distance based haphazard (3). The forest I sampled was the Snyder-Middlesworth Natural Area.

The distance haphazard method was the fastest sampling time at 57 minutes, while both area based sampling methods took 2 hours and 36 minutes.

Percentage errors for 2 rarest species:

Chestnut Oak

  1. 37.4%
  2. 54.6%
  3. 100%

Striped Pine

  1. 357.7%
  2. 100%
  3. 100%

Percentage errors for 2 most common species:

Eastern Hemlock

  1. 36.2%
  2. 31.9%
  3. 52.2%

Sweet Birch

  1. 36.1%
  2. 36.1%
  3. 122.8%

The most accurate sampling method for the 2 rarest species was the haphazard method and the most accurate for the 2 most common species was the random or systematic method.

Overall I found the most accurate sampling method was the haphazard method (area or distance based).

Leave a Reply

Your email address will not be published. Required fields are marked *