Course Topics

Projects (Projects links)

Introduction
(Outline of the class structure and resources.)
References
(List of the class resources that cover this material in greater depth.)
Spreadsheets and R
(The use of spreadsheets and R with this material.)

Section 1 (General Topics)

Samples and Populations
(Defining what a sample and a population)
Randomness
(What is Random?)
Data Types
(Why not all numbers are equal?)
How to make a table
(How to properly format for a table?)
How to make a figure
(How to properly format for a figure?)
How to make a memo
(How to properly format for a memo?)
How to make a report
(How to properly format for a report?)

Section 2 (Statistical Review)

Distributions
(Data distributions.)
Measures of Central Tendency
(What is the center of your distribution.)
Weighted Means
(How to calculate a weighted mean.)
Measures of Dispersion
(What is the spread of your distribution.)
Histograms
(How to create a histogram.)
Accuracy and Precision
(How to create a histogram.)
Types of Error
(Defining of errors in testing.)
Confidence interval for single sample mean
(Defining of errors in testing.)
Confidence interval for 2 sample means
(Defining of errors in testing.)
Scatter Graph
(Defining of errors in testing.)

Section 3 (Sampling General)

Sampling Probability
(When sampling the probability of selecting an individual is different by the sampling method.)
Random Sampling
(How to take random samples.)
Systematic Sampling
(How to take systematic samples.)
Stratified Sampling
(How to take stratified samples.)
Expansion Factors
(How to report your plot densities in standard units.)
Sample Size Determination
(How to report your plot densities in standard units.)
Sequential Sample
(How to report your plot densities in standard units.)

Section 4 (Statistical Testing)

Standard Distribtuion - F Distribution
(F Distributions.)
Standard Distribtuion - t Distribution
(t Distributions.)
Differences between two samples variances
(Do two distributions have the same variance?)
Differences between two samples with similar variance
(Do two distributions having the same variance differ in means?)
Differences between two samples with different variance
(Do two distributions having the different variance differ in means?)
Determining the results of a statistical test
(Do to we interpert a statistical test result?)
Analysis of Variance (ANOVA)
(When should we use ANOVA and why?)
Simple Linear Regression
(How do we define a trend between two variables?)

Section 5 (Diversity Measures and Spatial Statistics)

Richness and Evenness
(What are the components of statistical diversity?)
Simpson's index
(How do you calulate and interpert Simpson's index?)
Shannon Diversity Index
(How do you calulate and interpert Shannon Diversity Index?)
Hopkin's index
(How do you calulate and interpert a simple nearest neighbor spatial index?)
Holgate's Index
(How do you calulate and interpert a simple nearest neighbor spatial index?)

Section 6 (Animal Sampling)

Peterson's Mark and Recapture
(How do you calulate and interpert a simple mark and recapture?)
Schnabel's Mark and Recapture
(How to implement mark and recapture with 3 or more samples?)
Jolly-Seber's Mark and Recapture
(How do implement mark and recapture with open populations?)
Hayne Line Transect Estimator
(How do estimate density of flushing amimals along a line transect.)

Section 7 (Plant Sampling)

Herbaceous Samples
(How do estimate density of herbaceous plants?)
Tree Diameter Measurement
(How do measure a tree diameter with a caliper?)
Tree height measurement Tree height demo
(How do measure tree heights?)
Basal Area
(How do estimate basal area?)
Site Index estimation
(How do estimate site index?)
Fixed unit sampling
(How to conduct a Probability Proportional to Frequency (PPF) sample.)
Variable point sampling
(How to conduct a Probability Proportional to Size (PPS) sample.) sample.)

Section 8 (Stand Stocking)

Gingrich Diagram
(Diagram to aid forest management.)
Reineke Diagram
(Diagram to aid forest management.)
Maximum Stand Density Index
(How to calculate stand density index and a list of maximums by species.)

Section 9 (Volume and Biomass)

Log Volume estimation
(How to calculate log volume.)
Tree Volume estimation
(How to calculate log volume.)
Tree Biomass and Carbon estimation
(How to calculate biomass and carbon content.)

Section 10 (Forestry Functions)

Forestry Functions
(Computer code to calculate many forestry equations)

Creative Commons License
Natural Resources Biometrics by David R. Larsen is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author: Dr. David R. Larsen
Created: August 11, 2014
Last Updated: March 22, 2023