http://lod.bco-dmo.org/id/dataset/630458
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
2016-01-05
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Residence times of consumers in subtidal areas on Isla Baltra, Gal?pagos during 2012 (GMR Trophic Cascades project)
2016-01-05
publication
2016-01-05
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-04-01
publication
https://doi.org/10.26008/1912/bco-dmo.630458.1
Jon D. Witman
Brown University
principalInvestigator
Franz Smith
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., Smith, F. (2021) Residence times of consumers in subtidal areas on Isla Baltra, Gal?pagos during 2012 (GMR Trophic Cascades project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2016-01-05 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.630458.1 [access date]
Residence times of consumers in Galápagos subtidal, Isla Baltra Dataset Description:
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
completed
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
Franz Smith
Brown University
Department of Ecology and Evolutionary Biology
Providence
RI
franzinho@actrix.co.nz
pointOfContact
asNeeded
Dataset Version: 1
Unknown
site
lat
lon
date_local
time_enter
predator_grp
species_code
species
image_enter
image_exit
time_elapsed
theme
None, User defined
site
latitude
longitude
date_local
time_start
taxon
species scientific name (binomial)
No BCO-DMO term
time_elapsed
featureType
BCO-DMO Standard Parameters
Camera
instrument
BCO-DMO Standard Instruments
Witman_2012
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
biota
oceans
central Galapagos Islands, Ecuador
-90.27525
-90.27525
-0.411
-0.411
2012-07-13
2012-07-19
Galapagos Islands, Ecuador 00 33.953 S; 90 08.493 W
0
BCO-DMO catalogue of parameters from Residence times of consumers in subtidal areas on Isla Baltra, Gal?pagos during 2012 (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/630491.rdf
Name: site
Units: unitless
Description: <p>study areas</p>
http://lod.bco-dmo.org/id/dataset-parameter/630492.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/630493.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/630494.rdf
Name: date_local
Units: yyyy-mm-dd
Description: <p>local date</p>
http://lod.bco-dmo.org/id/dataset-parameter/630495.rdf
Name: time_enter
Units: HH:MM
Description: <p>local time when consumer entered area</p>
http://lod.bco-dmo.org/id/dataset-parameter/630496.rdf
Name: predator_grp
Units: unitless
Description: <p>predator group name</p>
http://lod.bco-dmo.org/id/dataset-parameter/630497.rdf
Name: species_code
Units: unitless
Description: <p>species code</p>
http://lod.bco-dmo.org/id/dataset-parameter/630498.rdf
Name: species
Units: unitless
Description: <p>taxonomic species name</p>
http://lod.bco-dmo.org/id/dataset-parameter/630499.rdf
Name: image_enter
Units: unitless
Description: <p>image number when consumer entered area</p>
http://lod.bco-dmo.org/id/dataset-parameter/630500.rdf
Name: image_exit
Units: unitless
Description: <p>image number when consumer exited area</p>
http://lod.bco-dmo.org/id/dataset-parameter/630501.rdf
Name: time_elapsed
Units: seconds
Description: <p>residence times of consumer species</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
327824
https://darchive.mblwhoilibrary.org/bitstream/1912/26893/1/dataset-630458_consumer-residence-times__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.630458.1
download
onLine
dataset
<p><strong>BCO-DMO Processing:</strong></p>
<p>- added conventional header with dataset name, PI name, version date, reference information<br />
- renamed parameters to BCO-DMO standard<br />
- changed question mark to nd<br />
- added species name, lat and lon columns</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
PI Supplied Instrument Name: PI Supplied Instrument Description:GoPro digital video camera Instrument Name: Camera Instrument Short Name:camera Instrument Description: All types of photographic equipment including stills, video, film and digital systems. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/311/
Deployment: Witman_2012
Witman_2012
Unknown Platform
Unknown Platform