est_pk0

Searcher efficiency is modeled as a function of the number of
 times a carcass has been missed in previous searches and any number of
 covariates.

Evidence of Absence software (EoA) is a user-friendly application for estimating bird and bat fatalities at wind farms and designing search protocols. The software is particularly useful in addressing whether the number of fatalities has exceeded a given threshold and what search parameters are needed to give assurance that thresholds were not exceeded. The models are applicable even when zero carcasses have been found in searches, following Huso et al. (2015) <doi:10.1890/14-0764.1>, Dalthorp et al. (2017) <doi:10.3133/ds1055>, and Dalthorp and Huso (2015) <doi:10.3133/ofr20151227>.

Daniel Dalthorp

eoa3

Wildlife Mortality Estimator for Low Fatality Rates and
Imperfect Detection

est_pk0 function

<dl><dt>pkdata</dt>
<dd>Search trial data entered in a list of N-vectors, $n and $y,
indicating the number of carcasses available and the number discovered in
searcher efficiency field trials in which carcasses were available for
discovery. [NOTE: In earlier versions of <code>eoa</code>, the vectors were $M and
$X. The names have been changed to avoid confusion with the <code>M</code> and
<code>X</code> for total mortality and carcasses discovered carcass survey.]</dd>
<dt>kFixed</dt>
<dd>If trial carcassses are available for discovery for one search
and data are insufficient for estimating <code>k</code>, a fixed, assumed value must
be entered for <code>k</code>.</dd>
<dt>n.iter</dt>
<dd>number of iterations to use in updating the JAGS model for
$p$ and $k$</dd>
<dt>...</dt>
<dd>Other parameters that may be used in called functions (esp.
<code>burn</code> for updating the JAGS function)</dd></dl>

Arguments

Fit pk searcher efficiency models — est_pk0

<dl>

<dt>pkdata</dt>
<dd>Search trial data entered in a list of N-vectors, $n and $y,
indicating the number of carcasses available and the number discovered in
searcher efficiency field trials in which carcasses were available for
discovery. [NOTE: In earlier versions of <code>eoa</code>, the vectors were $M and
$X. The names have been changed to avoid confusion with the <code>M</code> and
<code>X</code> for total mortality and carcasses discovered carcass survey.]</dd>


<dt>kFixed</dt>
<dd>If trial carcassses are available for discovery for one search
and data are insufficient for estimating <code>k</code>, a fixed, assumed value must
be entered for <code>k</code>.</dd>


<dt>n.iter</dt>
<dd>number of iterations to use in updating the JAGS model for
$p$ and $k$</dd>


<dt>...</dt>
<dd>Other parameters that may be used in called functions (esp.
<code>burn</code> for updating the JAGS function)</dd>

</dl>

est_pk0: Fit pk searcher efficiency models

Description

Usage

Value

Arguments

Details