goosedrop

The dataset contains observations from two sites: the island of Schiermonnikoog (saltmarsh) and Terschelling (agricultural grassland).
Brent geese were observed continuously with spotting scopes, and the time when geese excreted a dropping was written down.
The time in seconds between wo subsequently observed dropping arrivals of a single individual refers to one dropping interval.
The variables are as follows:<dl class="dl-horizontal">
 <dt><code>date</code></dt><dd>observation start time of the interval</dd>
 <dt><code>interval</code></dt><dd>length of the interval in seconds</dd>
 <dt><code>bout_length</code></dt><dd>total observation time of individual</dd>
 <dt><code>prop_abdomen_seen</code></dt><dd>proportion of total observation time when abdomen could be observed</dd>
 <dt><code>bout_id</code></dt><dd>intervals belonging to the same observation bout of an individual have the same <code>bout_id</code></dd>
 <dt><code>site</code></dt><dd>observation site. One of 'terschelling' (agricultural grassland) or 'schiermonnikoog' (salt marsh)</dd>
 <dt><code>period</code></dt><dd>two-week observation period (1-5)</dd>
</dl>

datasets

Calculates event rates and compares means and variances of groups of interval data corrected for missed arrival observations.

Adriaan M. Dokter

intRvals

Analysis of Time-Ordered Event Data with Missed Observations

goosedrop function

An object of class <code>data.frame</code> with 705 rows and 7 columns.

Format

The dataset contains observations from two sites: the island of Schiermonnikoog (saltmarsh) and Terschelling (agricultural grassland).
Brent geese were observed continuously with spotting scopes, and the time when geese excreted a dropping was written down.
The time in seconds between wo subsequently observed dropping arrivals of a single individual refers to one dropping interval.
The variables are as follows:<dl class='dl-horizontal'>
 <dt><code>date</code></dt><dd>observation start time of the interval</dd>
 <dt><code>interval</code></dt><dd>length of the interval in seconds</dd>
 <dt><code>bout_length</code></dt><dd>total observation time of individual</dd>
 <dt><code>prop_abdomen_seen</code></dt><dd>proportion of total observation time when abdomen could be observed</dd>
 <dt><code>bout_id</code></dt><dd>intervals belonging to the same observation bout of an individual have the same <code>bout_id</code></dd>
 <dt><code>site</code></dt><dd>observation site. One of 'terschelling' (agricultural grassland) or 'schiermonnikoog' (salt marsh)</dd>
 <dt><code>period</code></dt><dd>two-week observation period (1-5)</dd>
</dl>

goosedrop: Dataset with dropping intervals observed for foraging Brent Geese (Branta bernicla bernicla)

Description

Usage

Arguments

Format