ECOLOGICAL METHODOLOGY

Version 6.1     (25 January 2002)

What’s new in version 6.1?

We have compiled all the programs from Ecological Methodology (2^nd ed.) in Delphi 4 and Lahey Fortran 90 for compatibility with Windows 9x/NT/2000/ME/XP so that they will install and run on any Windows based system. 

In addition to correcting a few minor errors that were found in Version 5 of these programs, we have added help screens for each program (available as RTF files in a subdirectory) as well as five new programs that brings the total number of procedures to 86.  The new programs add to the material described in the book Ecological Methodology (1999).

Help screens for all programs for quick reference of the details of program assumptions and equations.  These are a synopsis of the material covered in the textbook and are available as RTF files. 

Five new programs as indicated below with a ☼.

Description of program groups:

MARK-RECAPTURE. This group contains 9 programs as follows:

Petersen Method

Schnabel-Schumacher Method

Resight Estimation (Radio-telemetry)

Jolly-Seber Full Model

Zero-truncated Poisson Test of Equal Catchability

Leslie, Chitty and Chitty Test for Marked Animals Equal Catchability

Caughley Closed Population Estimators

Catch-Effort Models for Exploited Populations

Change-in-Ratio Estimators for Exploited Populations 

 

QUADRAT SAMPLING. This group contains 8 programs as follows:

Optimal Quadrat Size and Shape

Poisson Distribution

Negative Binomial Distribution

Goodness-of-fit to a Negative Binomial Distribution

Calculating a Theoretical Negative Binomial Distribution

Testing for Equality Among Several Negative Binomial Samples

Aerial Survey Methods

Line Intercept Sampling

 

 LINE TRANSECTS. This group contains two programs to compute line transect estimators.

Hayne Estimator

      ☼ Shape-restricted Line Transect Estimator

 

DISTANCE METHODS. This group contains 5 programs.

Byth and Ripley

T-square

Ordered Distance

Variable Area Transect

Point Quarter

 

SPATIAL PATTERN. This group contains four programs from Chapter 6 to test for random spatial patterns as follows:

Clark and Evans Test

Campbell and Clarke Test

Contiguous Quadrats (TTLQV)

Indices of Dispersion (Quadrat Counts)

 

SAMPLE SIZE. This group contains 6 programs from Chapter 7 to estimate sample sizes needed as follows:

Continuous Variables - Means

Continuous Variables - Variances

Discrete Variables - Proportions

Discrete Variables - Poisson Counts

Discrete Variables - Negative Binomial Counts

Specialized Ecological Variables

 

SAMPLING. This group contains 6 programs from Chapter 8 on sampling designs as follows:

Means of Ratios

Stratified Sampling

Construction of Strata

Adaptive Sampling

Multistage Sampling

     ☼  Ranked Set Sampling

 

SEQUENTIAL SAMPLING. This group contains 8 programs from Chapter 9 to estimate sequential designs as follows:

Means - Normal Distributions

Variances - Normal Distributions

Proportions - Binomial Distributions

Counts - Negative Binomial Distribution

Stopping Rules – Green’s and Kuno’s

Sequential Schnabel Population Estimates

Iwao's Method for Quadrat Counts

 

SIMILARITY COEFFICIENTS. This group contains 7 programs from Chapter 11 to estimate similarity as follows:

Binary Coefficients

Euclidean Distance Coefficient

Bray-Curtis Metric

Canberra Metric

Percentage Similarity

Morisita's Index of Similarity

Horn's Index

 

SPECIES DIVERSITY. This group contains 10 procedures from Chapter 12 to estimate species diversity as follows:

Species Richness - Rarefaction Method

Species Richness - Jackknife Method for Quadrat Counts

Logarithmic Series

Lognormal Distribution

Simpson's Index of Diversity

Shannon-Wiener Measure

Brillouin's Index of Diversity

Evenness Measures

     ☼  Bootstrapped confidence limits for species diversity estimators

 

NICHE MEASURES AND DIET PREFERENCE. This group contains 5 programs from Chapter 15 as follows:

Niche Breadth

Niche Overlap

Habitat and Dietary Preferences

Resource Selection Indices

Rodgers' Index for Cafeteria Food Preferences

 

SURIVAL. This group contains 7 programs from Chapter 14 as follows:

Conversion of Survival Rates

Life Tables

Expectation of Life

Radio-telemetry Survival Rates

Kaplan-Meier Method

Log Rank Test

Likelihood Ratio Test

 

EXTRAS. This group contains 13 miscellaneous programs from Chapter 13 and other chapters, as follows:

Significant Digits for Recording Data (Chapter 1)

Binomial Confidence Limits (Chapter 2)

Multinomial Confidence Limits (Chapter 13)

Poisson Confidence Limits (Chapters 2 and 4)

Means and confidence limits from a frequency distribution

     ☼  Bootstrapped means and confidence limits for ratio or interval data

Logarithmic Transformation Constant in log (X + c) Transformations

Correction for Means from Logarithmic Transformations

Box-Cox Transformation

Repeatability of Measurements

Geometric Mean Regression

Means from Frequency Distributions

    ☼    Uniform random number generator with constraints

 

Charles J. Krebs  (krebs@zoology.ubc.ca)

Alice J. Kenney