Evidence of absence (v2.0) software user guide
Evidence of Absence software (EoA) is a user-friendly software application for estimating bird and bat fatalities at wind farms and for designing search protocols. The software is particularly useful in addressing whether the number of fatalities is below a given threshold and what search parameters are needed to give assurance that thresholds were not exceeded. The software also includes tools (1) for estimating carcass persistence distributions and searcher efficiency parameters (𝑝 and 𝑘) from field trials, (2) for projecting future mortality based on past monitoring data, and (3) for exploring the potential consequences of various choices in the design of long-term incidental take permits for protected species. The software was designed specifically for cases where tolerance for mortality is low and carcass counts are small or even 0, but the tools also may be used for mortality estimates when carcass counts are large.
Citation Information
Publication Year | 2017 |
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Title | Evidence of absence (v2.0) software user guide |
DOI | 10.3133/ds1055 |
Authors | Daniel Dalthorp, Manuela M. Huso, David Dail |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | Data Series |
Series Number | 1055 |
Index ID | ds1055 |
Record Source | USGS Publications Warehouse |
USGS Organization | Forest and Rangeland Ecosystem Science Center |