SOP #21: Statistical Data Analysis. Version 1.01. Pacific Island Network Established Invasive Plant Species Monitoring Protocol. Unpublished National Park Service Report, Pacific Island Inventory and Monitoring Network, Hawaii National Park, Hawaii.
Ainsworth A. 2021. SOP #21: Statistical Data Analysis. Version 1.01. Pacific Island Network Established Invasive Plant Species Monitoring Protocol. Unpublished National Park Service Report, Pacific Island Inventory and Monitoring Network, Hawaii National Park, Hawaii.
This SOP describes how to analyze established invasive plant species monitoring data for both status and trends for Pacific Island Network (PACN) parks. Status is described primarily with summary statistics including means and variances, while trends are evaluated using paired t-tests, repeated measures analysis of variance (ANOVA), generalized linear models, zero-inflated generalized models, proportional odds models, or likelihood ratio tests depending on the type of data and its distribution. A list of recommended summary and trend statistics based on the data collected is provided in Table SOP 21.1.