http://lod.bco-dmo.org/id/dataset/516994
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2014-06-17
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Subtidal temperature data (12-15 m depth) in the central Galapagos Islands, Ecuador from 2011-2013 (GMR Trophic Cascades project)
2014-06-11
publication
2014-06-11
revision
BCO-DMO Linked Data URI
2014-06-11
creation
http://lod.bco-dmo.org/id/dataset/516994
Jon D. Witman
Brown University
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Witman, J. D. (2014) Subtidal temperature data (12-15 m depth) in the central Galapagos Islands, Ecuador from 2011-2013 (GMR Trophic Cascades project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2014-06-11 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/516994 [access date]
Subtidal temperature data from 2011-2013 at sites in the central Galapagos Islands (12-15 m depth), Ecuador Dataset Description: Methods and Sampling: <p>Temperature data collected by Onset Tidbit temperature loggers (http://www.onsetcomp.com/products/data-loggers/utbi-001) at 10 minute intervals. Loggers were attached to subtidal rock walls at 12-15 m depth. They are downloaded approximately twice a year. The temperature loggers have an accuracy of 0.2 degrees C.</p>
<p>DMO NOTE: This is a large dataset and is slow to load. &nbsp;Please be patient.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1061475 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1061475
onGoing
Jon D. Witman
Brown University
401-863-3936
Ecology and Evolutionary Biology Department Box G-W Brown University
Providence
RI
02912
USA
Jon_Witman@brown.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
year
station
sta_id
lat
lon
mon
day
time
yrday_local
temp
Water Temp Sensor
theme
None, User defined
year
station number
station id
latitude
longitude
month of year
day of month
time_local
day of year and decimal time (local time zone)
water temperature at measurement depth
featureType
BCO-DMO Standard Parameters
Water Temperature Sensor
instrument
BCO-DMO Standard Instruments
Witman_2014
service
Deployment Activity
central Galapagos Islands, Ecuador
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Effects of Predator Diversity on the Strength of Trophic Cascades in an Oceanic Benthic Ecosystem
http://www.witmanlab.com/predator-diversity-and-the-strength-of-trophic-cascades-gmr.html
Effects of Predator Diversity on the Strength of Trophic Cascades in an Oceanic Benthic Ecosystem
<p><em>Description from NSF award abstract:</em><br />
Predator diversity has decreased dramatically in the world's oceans due to overfishing, anthropogenic habitat destruction and possibly climate change. Yet, still unknown for most ecosystems is the importance of predator diversity and abundance for ecosystem functioning. One of the most pervasive community-wide consequences of top predators is the Trophic Cascade (TC), where herbivores are suppressed, which releases plants from consumption, thus increasing plant productivity. Recent studies have shown that the diversity of predators may reduce, increase, or have no effect on the strength of trophic cascades. The small number, to date, of experimental tests of predator diversity effects on cascade strength precludes broad generalizations vital to the development of predictive theory. Such research is limited by the lack of experimental realism due to the small number of predator species that can be manipulated in simplified mesocosms. Without more realistic species numbers, it is impossible to extrapolate results to natural ecosystems that experience losses of predator diversity.</p>
<p>To meet these challenges, and to better understand the consequences of present and changing levels of predator diversity in marine ecosystems, a series of experimental manipulations will be conducted on natural levels of predator diversity and their herbivorous sea urchin prey. The hypotheses test the ultimate effects on benthic algae, as a measure of cascade strength in oceanic benthic ecosystems of the Galapagos Marine Reserve (GMR). Because of years of protection from industrial fishing as a UNESCO World Heritage Site, and of local conservation protection as the GMR, there are diverse guilds of higher trophic level predators, such as large fish and sharks. Likewise, there is high diversity of intermediate-level fish and invertebrates that prey on sea urchins, creating an unusual opportunity for testing and developing predator diversity and Biodiversity Ecosystem Functioning theory. The overarching questions addressed in this project are: How do naturally occurring large ranges of oceanic predator diversity influence the strength of trophic cascades? and How does environmental variation and conservation protection influence these processes? The first question will be addressed in experiments manipulating both horizontal (within trophic level; urchin herbivores) and vertical (across trophic level; predators) consumer diversity and in another experiment manipulating the diversity of predatory fish and invertebrates guilds. The experiments employ open fenced treatments containing urchins but allowing access by fish and invertebrate predators of the urchins. To record natural levels of fish and invertebrate predator richness encountering the treatments, consuming the urchins and interacting with each other, the entire experimental layout will be video-recorded for up to several weeks at a time. The time-lapse cameras/lighting system is capable of day and night imaging without affecting predator behavior. A simplified manipulation to measure the influence of predator diversity on cascade strength will be replicated and video-recorded at 16 sites -- representing different levels of upwelling and conservation protection -- to place the mechanistic understanding gleaned from detailed experiments at local sites into a broader (mesoscale) context.</p>
<p><strong>Relevant References:</strong></p>
<p>Witman, J.D and F. Smith. 2003. Rapid community change at a tropical upwelling site in the Galapagos Marine Reserve. Biodiversity and Conservation 12: 25-45</p>
<p>Witman, J.D., M. Brandt and F. Smith 2010. Coupling between subtidal prey and consumers along a mesoscale upwelling gradient in the Galapagos Islands. Ecological Monographs 80: 153-177.</p>
GMR Trophic Cascades
largerWorkCitation
project
eng; USA
oceans
central Galapagos Islands, Ecuador
-90.74908
-90.14147
-1.328788
-0.236963
2012-08-02
2013-08-14
Galapagos Islands, Ecuador 00 33.953 S; 90 08.493 W
0
BCO-DMO catalogue of parameters from Subtidal temperature data (12-15 m depth) in the central Galapagos Islands, Ecuador from 2011-2013 (GMR Trophic Cascades project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/517382.rdf
Name: year
Units: unitless
Description: <p>year</p>
http://lod.bco-dmo.org/id/dataset-parameter/517383.rdf
Name: station
Units: unitless
Description: <p>station name</p>
http://lod.bco-dmo.org/id/dataset-parameter/517384.rdf
Name: sta_id
Units: unitless
Description: <p>station code</p>
http://lod.bco-dmo.org/id/dataset-parameter/517385.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/517386.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/517387.rdf
Name: mon
Units: unitless
Description: <p>month</p>
http://lod.bco-dmo.org/id/dataset-parameter/517388.rdf
Name: day
Units: unitless
Description: <p>day</p>
http://lod.bco-dmo.org/id/dataset-parameter/517389.rdf
Name: time
Units: unitless
Description: <p>local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/517390.rdf
Name: yrday_local
Units: unitless
Description: <p>year</p>
http://lod.bco-dmo.org/id/dataset-parameter/517391.rdf
Name: temp
Units: degrees Celsius
Description: <p>temperature</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
43062274
https://datadocs.bco-dmo.org/file/M77XqLGSxpZwp1/temperature.csv
temperature.csv
Primary data file for dataset ID 516994
download
https://osprey.bco-dmo.org/dataset/516994/data/download
download
onLine
dataset
<p>Temperature data collected by Onset Tidbit temperature loggers (http://www.onsetcomp.com/products/data-loggers/utbi-001) at 10 minute intervals. Loggers were attached to subtidal rock walls at 12-15 m depth. They are downloaded approximately twice a year. The temperature loggers have an accuracy of 0.2 degrees C.</p>
<p>DMO NOTE: This is a large dataset and is slow to load. &nbsp;Please be patient.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Water Temp Sensor
Water Temp Sensor
PI Supplied Instrument Name: Water Temp Sensor PI Supplied Instrument Description:Onset Tidbit temperature loggers (http://www.onsetcomp.com/products/data-loggers/utbi-001) at 10 minute intervals. Loggers were attached to subtidal rock walls at 12-15 m depth . They are downloaded approximately twice a year. The temperature loggers have an accuracy of 0.2 degrees C. Instrument Name: Water Temperature Sensor Instrument Short Name:Water Temp Sensor Instrument Description: General term for an instrument that measures the temperature of the water with which it is in contact (thermometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/134/
Deployment: Witman_2014
Witman_2014
Unknown Platform
Witman_2014
Jon D. Witman
Brown University
Unknown Platform