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            <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/dataset/948216.rdf" xlink:actuate="onRequest">Behavioral data of Tegula funebralis in the presence of predator Pisaster ochraceus within laboratory mesocosms at Bodega Marine Lab in 2018</gmx:Anchor>
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            <gco:CharacterString>Cite this dataset as: Ng, G., Gaylord, B. (2025) Behavioral data of Tegula funebralis in the presence of predator Pisaster ochraceus within laboratory mesocosms at Bodega Marine Lab in 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-01-09 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.948216.1 [access date]</gco:CharacterString>
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      <gmd:abstract>
        <gco:CharacterString>Dataset Description: &amp;lt;p&amp;gt;See &amp;quot;Related Datasets&amp;quot; section for other datasets to be published in Ng &amp;amp;amp; Gaylord (2025, in-prep).&amp;amp;nbsp; These datasets&amp;amp;nbsp;are also listed on the &amp;quot;Related-Resource&amp;quot; page for that results publication&amp;amp;nbsp;https://www.bco-dmo.org/related-resource/948176&amp;lt;br /&amp;gt;
&amp;lt;br /&amp;gt;
All datasets in this project can be viewed from the &amp;quot;Dataset Collections&amp;quot; of the project page&amp;amp;nbsp;https://www.bco-dmo.org/project/712799&amp;lt;br /&amp;gt;
&amp;lt;br /&amp;gt;
Of particular note are :&amp;lt;br /&amp;gt;
&amp;lt;br /&amp;gt;
Dataset: Fear behavior with predators: Nucella&amp;lt;br /&amp;gt;
https://www.bco-dmo.org/dataset/948204&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Dataset: Fear behavior with predators: Tegula in the presence of Cancer crab cues&amp;lt;br /&amp;gt;
https://www.bco-dmo.org/dataset/948210&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;* The supplemental file &amp;quot;Fear_behavior_with_predators_analysis_package.zip&amp;quot; is attached to&amp;amp;nbsp;BCO-DMO datasets 948204, 948210, and 948216 (this dataset).&amp;amp;nbsp; The analysis package includes raw data and analysis R-scripts for all three datasets.&amp;lt;/p&amp;gt; Methods and Sampling: &amp;lt;p&amp;gt;To examine the intensity of anti-predatory behavior of both &amp;lt;em&amp;gt;Tegula funebralis&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Nucella lamellosa&amp;lt;/em&amp;gt;, we measured the proportion of time individual snails spend above the waterline in the presence and absence of their predator species, &amp;lt;em&amp;gt;Pisaster ochraceus&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Cancer productus&amp;lt;/em&amp;gt;. Data from this experiment are used to calculate estimated predation rates for snails that do not behaviorally respond to their predators, which are used to determine the impact anti-predatory responses have on the strength of trophic cascades. The experiment was conducted within laboratory mesocosms at Bodega Marine Lab in 2018 and 2019.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;&amp;lt;em&amp;gt;Pisaster ochraceus&amp;lt;/em&amp;gt;,&amp;lt;em&amp;gt; Cancer productus&amp;lt;/em&amp;gt;, and &amp;lt;em&amp;gt;Tegula funebralis &amp;lt;/em&amp;gt;were collected along the coastline of Sonoma County, California in 2018. Both &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Tegula&amp;lt;/em&amp;gt; were sampled at Carmet Beach (38.372172 N, -123.076438 W), and the &amp;lt;em&amp;gt;Cancer &amp;lt;/em&amp;gt;crabs were gathered subtidally from Doran Beach (38.309334 N, -123.048703 W). &amp;lt;em&amp;gt;Nucella lamellosa&amp;lt;/em&amp;gt; were collected at Washington Park in Anacortes, Washington (48.502190 N, -122.691865 W) in July 2019.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;We measured the behavior of both &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Tegula&amp;lt;/em&amp;gt; in the presence and absence of their respective predators. We established 20 mesocosms (33cm x 20cm x 11.5cm) each with 10 &amp;lt;em&amp;gt;Tegula &amp;lt;/em&amp;gt;that were provided with &amp;lt;em&amp;gt;Ulva&amp;lt;/em&amp;gt; sp. &amp;lt;em&amp;gt;ad libitum. &amp;lt;/em&amp;gt;Half of the mesocosms were exposed to &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cue and the other 10 to just seawater. Predator exposure was accomplished by placing an individual &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; in a separate container, and then allowing cue generated by it&amp;lt;em&amp;gt; &amp;lt;/em&amp;gt;to flow into the appropriate mesocosms. &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; were fed an individual &amp;lt;em&amp;gt;Tegula &amp;lt;/em&amp;gt;once a week. Over a period of 14 days, we measured the number of snails either above or below the water line. &amp;lt;em&amp;gt;Ulva &amp;lt;/em&amp;gt;sp. was included in the experiment in case its presence affected the snails’ decision to leave the water. We used the same procedure with &amp;lt;em&amp;gt;Cancer &amp;lt;/em&amp;gt;to estimate &amp;lt;em&amp;gt;Tegula’s &amp;lt;/em&amp;gt;behavioral response to them. We also used an analogous procedure to estimate &amp;lt;em&amp;gt;Nucella’s&amp;lt;/em&amp;gt; behavioral response to &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt;, with the exception that only five snails were used in each mesocosm due to the larger sizes of individuals of this snail species, and a small rock with &amp;lt;em&amp;gt;Balanus&amp;lt;/em&amp;gt; &amp;lt;em&amp;gt;glandula &amp;lt;/em&amp;gt;replaced &amp;lt;em&amp;gt;Ulva&amp;lt;/em&amp;gt; as the basal resource&amp;lt;em&amp;gt;.&amp;lt;/em&amp;gt;&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Because a subset of our &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; displayed morphological inducible defenses from the induction period, we also crossed the &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cue treatment with the induced morphology treatment such that of the 10 mesocosms experiencing &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cues, half of them contained induced &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; and the other half had non-induced &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt;. Of the 10 mesocosms with no predator cue, half had induced &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; and the other half had non-induced individuals.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;To test the effect of predator cue on the snails’ behavior, we conducted a logistic regression on the proportion of snails in and out of the water line with container as a random effect. For &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt;, we also added induced morphology as a predictor along with its interaction with &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cue, but because both terms were non-significant, we removed them from the final model. In addition, we added the containers they were housed in during the induction period as an additional random effect.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Organism identifiers (taxonomic names used in dataset metadata):&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Scientific Name, Life Science Identifier (LSID)&amp;lt;br /&amp;gt;
Tegula funebralis, urn:lsid:marinespecies.org:taxname:534190&amp;lt;br /&amp;gt;
Nucella lamellosa, urn:lsid:marinespecies.org:taxname:404218&amp;lt;br /&amp;gt;
Pisaster ochraceus,urn:lsid:marinespecies.org:taxname:240755&amp;lt;br /&amp;gt;
Cancer productus,urn:lsid:marinespecies.org:taxname:440382&amp;lt;br /&amp;gt;
Ulva sp., urn:lsid:marinespecies.org:taxname:144296&amp;lt;br /&amp;gt;
Balanus glandula, urn:lsid:marinespecies.org:taxname:394848&amp;lt;/p&amp;gt;</gco:CharacterString>
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        <gmx:Anchor xlink:href="http://lod.bco-dmo.org/id/award/712798.rdf" xlink:title="OCE-1636191" xlink:actuate="onRequest">Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1636191 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1636191</gmx:Anchor>
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              <gmd:description>
                <gco:CharacterString>&amp;lt;p&amp;gt;To examine the intensity of anti-predatory behavior of both &amp;lt;em&amp;gt;Tegula funebralis&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Nucella lamellosa&amp;lt;/em&amp;gt;, we measured the proportion of time individual snails spend above the waterline in the presence and absence of their predator species, &amp;lt;em&amp;gt;Pisaster ochraceus&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Cancer productus&amp;lt;/em&amp;gt;. Data from this experiment are used to calculate estimated predation rates for snails that do not behaviorally respond to their predators, which are used to determine the impact anti-predatory responses have on the strength of trophic cascades. The experiment was conducted within laboratory mesocosms at Bodega Marine Lab in 2018 and 2019.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;&amp;lt;em&amp;gt;Pisaster ochraceus&amp;lt;/em&amp;gt;,&amp;lt;em&amp;gt; Cancer productus&amp;lt;/em&amp;gt;, and &amp;lt;em&amp;gt;Tegula funebralis &amp;lt;/em&amp;gt;were collected along the coastline of Sonoma County, California in 2018. Both &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Tegula&amp;lt;/em&amp;gt; were sampled at Carmet Beach (38.372172 N, -123.076438 W), and the &amp;lt;em&amp;gt;Cancer &amp;lt;/em&amp;gt;crabs were gathered subtidally from Doran Beach (38.309334 N, -123.048703 W). &amp;lt;em&amp;gt;Nucella lamellosa&amp;lt;/em&amp;gt; were collected at Washington Park in Anacortes, Washington (48.502190 N, -122.691865 W) in July 2019.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;We measured the behavior of both &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; and &amp;lt;em&amp;gt;Tegula&amp;lt;/em&amp;gt; in the presence and absence of their respective predators. We established 20 mesocosms (33cm x 20cm x 11.5cm) each with 10 &amp;lt;em&amp;gt;Tegula &amp;lt;/em&amp;gt;that were provided with &amp;lt;em&amp;gt;Ulva&amp;lt;/em&amp;gt; sp. &amp;lt;em&amp;gt;ad libitum. &amp;lt;/em&amp;gt;Half of the mesocosms were exposed to &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cue and the other 10 to just seawater. Predator exposure was accomplished by placing an individual &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; in a separate container, and then allowing cue generated by it&amp;lt;em&amp;gt; &amp;lt;/em&amp;gt;to flow into the appropriate mesocosms. &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; were fed an individual &amp;lt;em&amp;gt;Tegula &amp;lt;/em&amp;gt;once a week. Over a period of 14 days, we measured the number of snails either above or below the water line. &amp;lt;em&amp;gt;Ulva &amp;lt;/em&amp;gt;sp. was included in the experiment in case its presence affected the snails’ decision to leave the water. We used the same procedure with &amp;lt;em&amp;gt;Cancer &amp;lt;/em&amp;gt;to estimate &amp;lt;em&amp;gt;Tegula’s &amp;lt;/em&amp;gt;behavioral response to them. We also used an analogous procedure to estimate &amp;lt;em&amp;gt;Nucella’s&amp;lt;/em&amp;gt; behavioral response to &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt;, with the exception that only five snails were used in each mesocosm due to the larger sizes of individuals of this snail species, and a small rock with &amp;lt;em&amp;gt;Balanus&amp;lt;/em&amp;gt; &amp;lt;em&amp;gt;glandula &amp;lt;/em&amp;gt;replaced &amp;lt;em&amp;gt;Ulva&amp;lt;/em&amp;gt; as the basal resource&amp;lt;em&amp;gt;.&amp;lt;/em&amp;gt;&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Because a subset of our &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; displayed morphological inducible defenses from the induction period, we also crossed the &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cue treatment with the induced morphology treatment such that of the 10 mesocosms experiencing &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cues, half of them contained induced &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; and the other half had non-induced &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt;. Of the 10 mesocosms with no predator cue, half had induced &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt; and the other half had non-induced individuals.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;To test the effect of predator cue on the snails’ behavior, we conducted a logistic regression on the proportion of snails in and out of the water line with container as a random effect. For &amp;lt;em&amp;gt;Nucella&amp;lt;/em&amp;gt;, we also added induced morphology as a predictor along with its interaction with &amp;lt;em&amp;gt;Pisaster&amp;lt;/em&amp;gt; cue, but because both terms were non-significant, we removed them from the final model. In addition, we added the containers they were housed in during the induction period as an additional random effect.&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Organism identifiers (taxonomic names used in dataset metadata):&amp;lt;/p&amp;gt;

&amp;lt;p&amp;gt;Scientific Name, Life Science Identifier (LSID)&amp;lt;br /&amp;gt;
Tegula funebralis, urn:lsid:marinespecies.org:taxname:534190&amp;lt;br /&amp;gt;
Nucella lamellosa, urn:lsid:marinespecies.org:taxname:404218&amp;lt;br /&amp;gt;
Pisaster ochraceus,urn:lsid:marinespecies.org:taxname:240755&amp;lt;br /&amp;gt;
Cancer productus,urn:lsid:marinespecies.org:taxname:440382&amp;lt;br /&amp;gt;
Ulva sp., urn:lsid:marinespecies.org:taxname:144296&amp;lt;br /&amp;gt;
Balanus glandula, urn:lsid:marinespecies.org:taxname:394848&amp;lt;/p&amp;gt;</gco:CharacterString>
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                <gco:CharacterString>&amp;lt;p&amp;gt;See &amp;quot;Supplemental Files&amp;quot; for analysis package (R-language).&amp;lt;/p&amp;gt;</gco:CharacterString>
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                  <gco:CharacterString>* Raw data and analysis R-scripts for three related datasets were packaged into the supplemental file Fear_behavior_with_predators_analysis_package.zip (no modifications to files).  The zip file was attached to all three datasets (BCO-DMO datasets 948204, 948210, 948216).

* Data table from submitted file &amp;quot;Tegula Pisaster behavior stats.csv&amp;quot; was imported into the BCO-DMO data system. Table will appear on this dataset page as Data File: 
948216_v1_fear-behavior_tegula-with-pisaster.csv (with other download format options).
* Date column (format was %d-%b, e.g. 25-Apr) transformed to ISO date %Y-%m-%d (e.g. 2018-04-25), year assumed to be 2018 from provided metadata. Year was confirmed with the with data submitter.

* Column &amp;quot;Date&amp;quot; renamed to &amp;quot;Date_local&amp;quot;, and &amp;quot;Time&amp;quot; renamed to &amp;quot;Time_local&amp;quot;. [US/Pacific local time]

* New column &amp;quot;ISO_DateTime_UTC&amp;quot; added by combining &amp;quot;Date_local&amp;quot; and &amp;quot;Time_local&amp;quot; with timezone conversion to UTC in ISO 8601 format.

* Any column names with characters other than letters, numbers and underscores were renamed to meet BCO-DMO naming conventions designed to support broad re-use by a variety of research tools and scripting languages. [Only numbers, letters, and underscores.  Can not start with a number]

Missing Data Identifiers:
* In the BCO-DMO data system missing data identifiers are displayed according to the format of data you access. For example, in csv files it will be blank (null) values. In Matlab .mat files it will be NaN values. When viewing data online at BCO-DMO, the missing value will be shown as blank (null) values.

* Taxonomic identifiers added to the metadata (Life Science Identifiers (LSID)).  Names matched using the  World Register of Marine Species (WoRMS) on 2024-01-02.</gco:CharacterString>
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                          <gco:CharacterString>Specified by BCO-DMO Data Managers</gco:CharacterString>
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