flatback

Satellite tracking data of 15 flatback turtles (Natator depressus) that nested in Curtis Island, Australia.
This sample data is a subset of the tracking data used in <a href="https://besjournals.onlinelibrary.wiley.com/doi/10.1111/2041-210X.13506">Shimada et al. (2021)</a>.

datasets

Functions to filter GPS/Argos locations, as well as assessing the sample size for the analysis of animal distributions. The filters remove temporal and spatial duplicates, fixes located at a given height from estimated high tide line, and locations with high error as described in Shimada et al. (2012) <doi:10.3354/meps09747> and Shimada et al. (2016) <doi:10.1007/s00227-015-2771-0>. Sample size for the analysis of animal distributions can be assessed by the conventional area-based approach or the alternative probability-based approach as described in Shimada et al. (2021) <doi:10.1111/2041-210X.13506>.

Takahiro Shimada

SDLfilter

Filtering and Assessing the Sample Size of Tracking Data

flatback function

A data frame with 1020 rows and 4 variables:<dl>
 <dt>id</dt>
<dd>identifier for each animal.</dd> <dt>DateTime</dt>
<dd>GMT date &amp; time of each location in class <code><a href="/link/POSIXct?package=SDLfilter&version=2.3.3" data-mini-rdoc="SDLfilter::POSIXct">POSIXct</a></code>.</dd> <dt>x</dt>
<dd>longitude in UTM.</dd> <dt>y</dt>
<dd>latitude in UTM.</dd>
</dl>

Format

Satellite tracking data of 15 flatback turtles (Natator depressus) that nested in Curtis Island, Australia.
This sample data is a subset of the tracking data used in <a href='https://besjournals.onlinelibrary.wiley.com/doi/10.1111/2041-210X.13506'>Shimada et al. (2021)</a>.

Flatback turtle tracking data — flatback

A data frame with 1020 rows and 4 variables:<dl>
 <dt>id</dt>
<dd>identifier for each animal.</dd>

 <dt>DateTime</dt>
<dd>GMT date &amp; time of each location in class <code><a href='https://rdrr.io/r/base/DateTimeClasses.html'>POSIXct</a></code>.</dd>

 <dt>x</dt>
<dd>longitude in UTM.</dd>

 <dt>y</dt>
<dd>latitude in UTM.</dd>


</dl>

flatback: Flatback turtle tracking data

Description

Usage

Arguments

Format