Community analysis


Many management thresholds rely on overall species composition. AbundanceR classifies species as either early successional, forest edge, forest interior, waterbird, shorebird, or seabird. The program presents the percentage of species abundance and the number of species detected for each category.

To calculate the percentage of species abundance the program adds together the estimated abundance for all species in a habitat category and divides that by the total estimated abundance of all species. To calculate the number of species detected the program simply counts the number of species detected in each habitat group.

Examples of how community analysis be used

If your management actions are designed to benefit early successional species, you might want to compare a group of points over time to see if the percentage composition of early successional species is increasing as expected.

This analysis is also useful if you plan to employ reforestation on a management unit based on a threshold. For example, when the community composition of forest interior birds falls below an established threshold, you will begin reforestation the following season to maintain habitat suitable for forest interior species.

Finding out which species are in each habitat group

You can press the species info button to see the habitat associations for all detected species.