http://lod.bco-dmo.org/id/dataset/683633
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
2017-03-03
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Barnacle percent cover in rocky subtidal habitats of the Galapagos Islands observed in 2015 and 2016 (RAPDGALPGS project)
2017-02-16
publication
2017-02-16
revision
BCO-DMO Linked Data URI
2017-02-16
creation
http://lod.bco-dmo.org/id/dataset/683633
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. (2017) Barnacle percent cover in rocky subtidal habitats of the Galapagos Islands observed in 2015 and 2016 (RAPDGALPGS project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2017-02-16 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/683633 [access date]
Barnacle percent cover in rocky subtidal habitats Dataset Description: <p>This dataset contains percent cover of the barnacles (Megabalanus&nbsp;sp.)&nbsp; per 0.25 m2 area photo quadrat at 12 sites (6 m depth) in January 2015 and January 2016 in rocky subtidal habitats of the Galapagos Islands, Ecuador.</p> Methods and Sampling: <p>Percent cover data were obtained by the random dot method (200 dots per quadrat, Witman et al. 2010) with 18 replicate quadrats sampled per site.&nbsp; January 2016 data not worked up yet for 2 sites (Pinzon, Roca Cousins).&nbsp;Barnacle percent cover values have an upper bound of 100.&nbsp;</p>
<p>For more information about these sampling methods see:</p>
<p>Witman, J. D., Brandt, M. and Smith, F. (2010), Coupling between subtidal prey and consumers along a mesoscale upwelling gradient in the Galapagos Islands. Ecological Monographs, 80: 153–177. doi:<a href="http://doi.org/10.1890/08-1922.1" target="_blank">10.1890/08-1922.1</a></p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1450214 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1450214
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
Unknown
site
lon
lat
year
month
depth
quadrat_num
barnacle_percent_cover
theme
None, User defined
site
longitude
latitude
year
month of year
depth
sample description
percent coverage
featureType
BCO-DMO Standard Parameters
Camera
instrument
BCO-DMO Standard Instruments
RAPDGALPGS_barnacles_2015-2016
service
Deployment Activity
Galapagos Islands
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.
RAPID: Understanding Thresholds and regime shifts in marine ecosystems: effects of the 2014-2015 El Nino in the Galapagos rocky subtidal
http://www.witmanlab.com
RAPID: Understanding Thresholds and regime shifts in marine ecosystems: effects of the 2014-2015 El Nino in the Galapagos rocky subtidal
<p>The question addressed in this project is: Does the 2014-2015 El Niño cause a regime shift in Galapagos subtidal ecosystems? And if so, what thresholds are crossed to drive the change from rocky subtidal communities with abundant corals to a barnacle dominated regime? Regime shifts are non-linear "ecological surprises" in the sense that the endpoint is not predictable as a linear outcome of a driver variable. The working hypothesis for this project is that the forthcoming 2014-2015 El Niño will create non-linear effects that are negative for corals which bleach during extreme temperature variability of the El Niño Southern Oscillation (ENSO), but are positive for the benthic (bottom dwelling) food chain dependent on barnacles for food. The specific work in the Galapagos will contribute to the general understanding of non-linear effects of climate stress in marine ecosystems, which has been highlighted as a critical information gap needed to understand the effects of climate change on ecosystems. The study will also inform best practices for the conservation of corals, which are threatened worldwide by multiple stressors and cumulative direct, and indirect impacts. </p>
<p>
Perturbations such as El Niños can drive ecosystems to a tipping point as thresholds are exceeded and a sudden transition to a different state (regime) occurs. Since the frequency of extreme El Niños is projected to increase with climate change, there is a pressing need to develop a more comprehensive understanding of how ENSOs affect marine communities in the context of climate change. Currently, the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center predicts a 70-80 % chance of an El Niño occurring during the northern hemisphere summer-winter of 2014-2015. This project leverages an existing quantitative baseline on benthic community structure in the Galapagos subtidal to address 12 predictions about community-ecosystem level impacts of the oncoming 2014-2015 El Niño. The research employs an observational-experimental approach to test the predictions and to discern if additional bleaching stress to corals and further increases in barnacles associated with this ENSO ultimately leads to an ecosystem state (regime) characterized by declining coral populations and increasing barnacles and their predators.</p>
RAPDGALPGS
largerWorkCitation
project
eng; USA
oceans
Galapagos Islands
-91.32879
-90.23696
-0.74908
-0.14065
2017-02-16
Eastern Tropical Pacific, Galapagos Islands: 00.41100 S, 90.27525 W
0
BCO-DMO catalogue of parameters from Barnacle percent cover in rocky subtidal habitats of the Galapagos Islands observed in 2015 and 2016 (RAPDGALPGS 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/683703.rdf
Name: site
Units: unitless
Description: <p>Site identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/683704.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude of sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/683705.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude of sampling site; west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/683706.rdf
Name: year
Units: unitless
Description: <p>Year sampling occured</p>
http://lod.bco-dmo.org/id/dataset-parameter/683707.rdf
Name: month
Units: unitless
Description: <p>Month sampling occurred</p>
http://lod.bco-dmo.org/id/dataset-parameter/683708.rdf
Name: depth
Units: unitless
Description: <p>Depth sampling occured</p>
http://lod.bco-dmo.org/id/dataset-parameter/683709.rdf
Name: quadrat_num
Units: unitless
Description: <p>Replicate quadrat number</p>
http://lod.bco-dmo.org/id/dataset-parameter/683710.rdf
Name: barnacle_percent_cover
Units: unitless
Description: <p>Percent cover of quadrat by barnacles (100% upper bound)</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
https://osprey.bco-dmo.org/dataset/683633/data/download
download
onLine
dataset
<p>Percent cover data were obtained by the random dot method (200 dots per quadrat, Witman et al. 2010) with 18 replicate quadrats sampled per site.&nbsp; January 2016 data not worked up yet for 2 sites (Pinzon, Roca Cousins).&nbsp;Barnacle percent cover values have an upper bound of 100.&nbsp;</p>
<p>For more information about these sampling methods see:</p>
<p>Witman, J. D., Brandt, M. and Smith, F. (2010), Coupling between subtidal prey and consumers along a mesoscale upwelling gradient in the Galapagos Islands. Ecological Monographs, 80: 153–177. doi:<a href="http://doi.org/10.1890/08-1922.1" target="_blank">10.1890/08-1922.1</a></p>
from Deployment: RAPDGALPGS_barnacles_2015-2016 <p>Subtidal sites were surveyed. </p>
<p>See <a href="http://www.bco-dmo.org/dataset/628159" target="_blank">measurement sites</a> for more details.</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing:</strong><br />
Data are raw percent cover values, with no processing.</p>
<p><strong>BCO-DMO Data Manager Processing Notes:</strong><br />
* added a conventional header with dataset name, PI name, version date<br />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* split yy-MMM column into year (yyyy) and numeric month (MM)<br />
* rounded percent cover to two decimal places<br />
* changed some site names to be consistent with site location list (e.g. Baltra -&gt; North Baltra)<br />
* data were sorted alphabetically by site after naming modifications<br />
* added lat lon from site list</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: 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: RAPDGALPGS_barnacles_2015-2016
RAPDGALPGS_barnacles_2015-2016
Galapagos_Islands
island
RAPDGALPGS_barnacles_2015-2016
Jon D. Witman
Brown University
Galapagos_Islands
island