Availability of code | Introduction | Survey protocol | Data input | Moose data | Block area | Stratum information | Sightability model. | Extracting from AerialSurvey | Reading coefficients of the model | Creation of VegCoverClass variable | Key variables. | Dealing with missing and zero values | Group information | Covariate information | Blocks with no observed groups. | Block information | A single block in a stratum | Analysis | Analysis not adjusting for sightability | Within a stratum | Density | Abundance | Bull to Cow and other ratios | Across all strata | The MoosePopR() function. | Sample Analyses | Density of all moose | Abundance of all moose | Number of bulls and number of cows | Final object | Adjusting for sightability | The SightabilityPopR() function | Dealing with missing values in the sightability covariates | Domain estimation | Domain at PSU (block) level; domain population information known | Example | Domain at PSU (block) level; domain population information unknown. | Domain at group level; domain population information known | Domain at group level; domain population information unknown. | References

Introduction | Modified Horvitz-Thompson estimator | Variance estimators | Package description and example applications | Future work

Introduction | Implementation | References

1 Availability of code | 2 Introduction | 3 Types of stratification | 3.1 Across sampling-unit stratification | 3.2 Within sampling-unit stratification (domain estimation) | 3.3 Combined designs | 3.4 CAUTIONS | 4 Data structures that allow for both types of stratification | 4.1 Stratum Totals | 4.2 Sampling unit information | 4.3 Way point (group) information | 4.4 Sightability Model | 5 Example | 5.1 Survey Design | 5.2 Data Values | 5.3 Uncorrected Estimation | 5.4 Corrected for sightability estimation | 5.5 SCF < 1 - Why does this happen? | 5.6 Adjusting data for SCF using MoosePopR() | 6 Final estimates | 6.1 Abundance of all moose - corrected for sightability and domain stratification | 6.2 Density of all moose - corrected for sightability and domain stratification | 6.3 Bulls:100 Cows - corrected for sightability and domain stratification | 7 Summary and Recommendations | 7.1 Survey Design | 7.2 Data structures | 7.3 Include schematic of design in report | 7.4 Analysis | 8 References