Description Usage Arguments Value Examples
Function that produces empirical estimates of probability to detect a foreign species, and associated costs based on varying occurrences, detectabilities and survey schemes.
1 | obsProb(occProb, detectProb, locations, visits, visitCost)
|
occProb |
vector of occurence probabilities to test |
detectProb |
vector of detection probabilities |
locations |
vector of number of locations to visit/sample |
visits |
vector of number of visits per sample |
visitCost |
vector of costs of each visit |
nBoot |
number of bootstrap samples to calculate std error of percent detected |
Returns a tibble where percDetected shows in percentage, how many times it is expected to find at least one record of the species, given the occurrence probabilities in each location, the detection probabilities if it is present, the number of locations sampled, and the number of samples per location. It also shows the standard error on the estimated percentage detected, based on the bootstrap
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