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Title Sum-
Institution Dataset ID
   set  data   graph     files  public Data describing Gorgonia ventalina interactions on St. John, Virgin Islands in 2015.    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_662645

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Methodology\u00a0from\u00a0Gambrel, B.\u00a0and\u00a0Lasker, H.R., 2016

While colony asymmetry was observed in many species, the planar form of
G.\u00a0ventalina\u00a0was particularly conducive to quantifying colony size
and asymmetry. The surface areas of both symmetric and asymmetric
G.\u00a0ventalina\u00a0colonies were measured to evaluate the extent of
asymmetry. We did not distinguish between\u00a0intra- and\u00a0inter-
specific\u00a0competitive interactions with asymmetric
G.\u00a0ventalina\u00a0since our goal was to compare the sizes of asymmetric
and symmetric colonies.

We sampled at Europa Bay, where similar numbers of symmetric and asymmetric
G.\u00a0ventalina\u00a0colonies were found. We searched for
G.\u00a0ventalina\u00a0within the same 500 m2 area as the belt transects, and
we selected colonies based on their health (colonies overgrown with algae
or\u00a0hydrocorals\u00a0were excluded from the study), size class (15\u221224
cm, 25\u221234 cm and 35\u221244 cm tall) and the presence or absence of
asymmetry, since we wanted similar numbers of colonies in each category. A
total of 142 G.\u00a0ventalina\u00a0colonies (78 symmetric and 64 asymmetric)
were photographed. Each image included a 1 m2 quadrat and a ruler.
attribute NC_GLOBAL awards_0_award_nid String 562090
attribute NC_GLOBAL awards_0_award_number String OCE-1334052
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1334052 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Gorgonia Asymmetry Data from Europa Bay
Howard Lasker, PI
Version 14 October 2016
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2016-10-25T18:17:58Z
attribute NC_GLOBAL date_modified String 2019-04-18T17:51:36Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.662645.1
attribute NC_GLOBAL Easternmost_Easting double -64.72988
attribute NC_GLOBAL geospatial_lat_max double 18.3166
attribute NC_GLOBAL geospatial_lat_min double 18.3166
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -64.72988
attribute NC_GLOBAL geospatial_lon_min double -64.72988
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/662645 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String area, asym, AsymSym, bco, bco-dmo, biological, chemical, data, dataset, date, dmo, erddap, height, interaction, latitude, longitude, management, number, oceanography, office, perimeter, preliminary, sym
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/662645/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/662645 (external link)
attribute NC_GLOBAL Northernmost_Northing double 18.3166
attribute NC_GLOBAL param_mapping String {'662645': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/662645/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String State University of New York at Buffalo
attribute NC_GLOBAL people_0_affiliation_acronym String SUNY Buffalo
attribute NC_GLOBAL people_0_person_name String Howard Lasker
attribute NC_GLOBAL people_0_person_nid String 562092
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Hannah Ake
attribute NC_GLOBAL people_1_person_nid String 650173
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String St. John LTREB,VI Octocorals
attribute NC_GLOBAL projects_0_acronym String St. John LTREB
attribute NC_GLOBAL projects_0_description String Long Term Research in Environmental Biology (LTREB) in US Virgin Islands:
From the NSF award abstract:
In an era of growing human pressures on natural resources, there is a critical need to understand how major ecosystems will respond, the extent to which resource management can lessen the implications of these responses, and the likely state of these ecosystems in the future. Time-series analyses of community structure provide a vital tool in meeting these needs and promise a profound understanding of community change. This study focuses on coral reef ecosystems; an existing time-series analysis of the coral community structure on the reefs of St. John, US Virgin Islands, will be expanded to 27 years of continuous data in annual increments. Expansion of the core time-series data will be used to address five questions: (1) To what extent is the ecology at a small spatial scale (1-2 km) representative of regional scale events (10's of km)? (2) What are the effects of declining coral cover in modifying the genetic population structure of the coral host and its algal symbionts? (3) What are the roles of pre- versus post-settlement events in determining the population dynamics of small corals? (4) What role do physical forcing agents (other than temperature) play in driving the population dynamics of juvenile corals? and (5) How are populations of other, non-coral invertebrates responding to decadal-scale declines in coral cover? Ecological methods identical to those used over the last two decades will be supplemented by molecular genetic tools to understand the extent to which declining coral cover is affecting the genetic diversity of the corals remaining. An information management program will be implemented to create broad access by the scientific community to the entire data set.
The importance of this study lies in the extreme longevity of the data describing coral reefs in a unique ecological context, and the immense potential that these data possess for understanding both the patterns of comprehensive community change (i.e., involving corals, other invertebrates, and genetic diversity), and the processes driving them. Importantly, as this project is closely integrated with resource management within the VI National Park, as well as larger efforts to study coral reefs in the US through the NSF Moorea Coral Reef LTER, it has a strong potential to have scientific and management implications that extend further than the location of the study.
The following publications and data resulted from this project:
2015    Edmunds PJ, Tsounis G, Lasker HR (2015) Differential distribution of octocorals and scleractinians around St. John and St. Thomas, US Virgin Islands. Hydrobiologia. doi: 10.1007/s10750-015-2555-zoctocoral - sp. abundance and distributionDownload complete data for this publication (Excel file)
2015    Lenz EA, Bramanti L, Lasker HR, Edmunds PJ. Long-term variation of octocoral populations in St. John, US Virgin Islands. Coral Reefs DOI 10.1007/s00338-015-1315-xoctocoral survey - densitiesoctocoral counts - photoquadrats vs. insitu surveyoctocoral literature reviewDownload complete data for this publication (Excel file)
2015   Privitera-Johnson, K., et al., Density-associated recruitment in octocoral communities in St. John, US Virgin Islands, J.Exp. Mar. Biol. Ecol. DOI 10.1016/j.jembe.2015.08.006octocoral recruitmentDownload complete data for this publication (Excel file)
2014    Edmunds PJ. Landscape-scale variation in coral reef community structure in the United States Virgin Islands. Marine Ecology Progress Series 509: 137–152. DOI 10.3354/meps10891.
Data at MCR-VINP.
Download complete data for this publication (Excel file)
2014    Edmunds PJ, Nozawa Y, Villanueva RD.  Refuges modulate coral recruitment in the Caribbean and Pacific.  Journal of Experimental Marine Biology and Ecology 454: 78-84. DOI: 10.1016/j.jembe.2014.02.00
Data at MCR-VINP.Download complete data for this publication (Excel file)
2014    Edmunds PJ, Gray SC.  The effects of storms, heavy rain, and sedimentation on the shallow coral reefs of St. John, US Virgin Islands.  Hydrobiologia 734(1):143-148.
Data at MCR-VINP.Download complete data for this publication (Excel file)
2014    Levitan, D, Edmunds PJ, Levitan K. What makes a species common? No evidence of density-dependent recruitment or mortality of the sea urchin Diadema antillarum after the 1983-1984 mass mortality.  Oecologia. DOI 10.1007/s00442-013-2871-9.
Data at MCR-VINP.Download complete data for this publication (Excel file)
2014    Lenz EA, Brown D, Didden C, Arnold A, Edmunds PJ.  The distribution of hermit crabs and their gastropod shells on shallow reefs in St. John, US Virgin Islands.  Bulletin of Marine Science 90(2):681-692. https://dx.doi.org/10.5343/bms.2013.1049
Data at MCR-VINP.Download complete data for this publication (Excel file)
2013    Edmunds PJ.  Decadal-scale changes in the community structure of coral reefs in St. John, US Virgin Islands.  Marine Ecology Progress Series 489: 107-123.
Data at MCR-VINP.Download complete data for this publication (zipped Excel files)
2013    Brown D, Edmunds PJ.  Long-term changes in the population dynamics of the Caribbean hydrocoral Millepora spp.  J. Exp Mar Biol Ecol 441: 62-70. doi: 10.1016/j.jembe.2013.01.013Millepora colony sizeMillepora cover - temps - storms 1992-2008Millepora cover 1992-2008seawater temperature USVI 1992-2008storms USVI 1992-2008Download complete data for this publication (Excel file)
2012    Brown D, Edmunds PJ. The hermit crab Calcinus tibicen lives commensally on Millepora spp. in St. John, United States Virgin Islands.  Coral Reefs 32: 127-135. doi: 10.1007/s00338-012-0948-2crab abundance and coral sizecrab displacement behaviorcrab nocturnal surveyscrab predator avoidanceDownload complete data for this publication (Excel file)
2011    Green DH, Edmunds PJ.  Spatio-temporal variability of coral recruitment on shallow reefs in St. John, US Virgin Islands.  Journal of Experimenal Marine Biology and Ecology 397: 220-229.
Data at MCR-VINP.Download complete data for this publication (Excel file)
2011    Colvard NB, Edmunds PJ. (2011) Decadal-scale changes in invertebrate abundances on a Caribbean coral reef.  Journal of Experimental Marine Biology and Ecology. 397(2): 153-160. doi: 10.1016/j.jembe.2010.11.015benthic invert codesinverts - Tektite and Yawzi Ptinverts - pooledDownload complete data for this publication (Excel file)
attribute NC_GLOBAL projects_0_end_date String 2014-04
attribute NC_GLOBAL projects_0_geolocation String St. John, U.S. Virgin Islands; California State University Northridge
attribute NC_GLOBAL projects_0_name String LTREB Long-term coral reef community dynamics in St. John, USVI: 1987-2019
attribute NC_GLOBAL projects_0_project_nid String 2272
attribute NC_GLOBAL projects_0_project_website String http://coralreefs.csun.edu/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2009-05
attribute NC_GLOBAL projects_1_acronym String VI Octocorals
attribute NC_GLOBAL projects_1_description String The recent past has not been good for coral reefs, and journals have been filled with examples of declining coral cover, crashing fish populations, rising cover of macroalgae, and a future potentially filled with slime. However, reefs are more than the corals and fishes for which they are known best, and their biodiversity is affected strongly by other groups of organisms. The non-coral fauna of reefs is being neglected in the rush to evaluate the loss of corals and fishes, and this project will add on to an on-going long term ecological study by studying soft corals. This project will be focused on the ecology of soft corals on reefs in St. John, USVI to understand the Past, Present and the Future community structure of soft corals in a changing world. For the Past, the principal investigators will complete a retrospective analysis of octocoral abundance in St. John between 1992 and the present, as well as Caribbean-wide since the 1960's. For the Present, they will: (i) evaluate spatio-temporal changes between soft corals and corals, (ii) test for the role of competition with macroalgae and between soft corals and corals as processes driving the rising abundance of soft corals, and (iii) explore the role of soft corals as "animal forests" in modifying physical conditions beneath their canopy, thereby modulating recruitment dynamics. For the Future the project will conduct demographic analyses on key soft corals to evaluate annual variation in population processes and project populations into a future impacted by global climate change.
This project was funded to provide and independent "overlay" to the ongoing LTREB award (DEB-1350146, co-funded by OCE, PI Edmunds) focused on the long-term dynamics of coral reefs in St. John.
Note: This project is closely associated with the project "RAPID: Resilience of Caribbean octocorals following Hurricanes Irma and Maria". See: https://www.bco-dmo.org/project/749653.
The following publications and data resulted from this project:
2017 Tsounis, G., and P. J. Edmunds. Three decades of coral reef community dynamics in St. John, USVI: a contrast of scleractinians and octocorals. Ecosphere 8(1):e01646. DOI: 10.1002/ecs2.1646Rainfall and temperature dataCoral and macroalgae abundance and distributionDescriptions of hurricanes affecting St. John
2016 Gambrel, B. and Lasker, H.R. Marine Ecology Progress Series 546: 85–95, DOI: 10.3354/meps11670Colony to colony interactionsEunicea flexuosa interactionsGorgonia ventalina asymmetryNearest neighbor surveys
2015 Lenz EA, Bramanti L, Lasker HR, Edmunds PJ. Long-term variation of octocoral populations in St. John, US Virgin Islands. Coral Reefs DOI 10.1007/s00338-015-1315-xoctocoral survey - densitiesoctocoral counts - photoquadrats vs. insitu surveyoctocoral literature reviewDownload complete data for this publication (Excel file)
2015 Privitera-Johnson, K., et al., Density-associated recruitment in octocoral communities in St. John, US Virgin Islands, J.Exp. Mar. Biol. Ecol. DOI: 10.1016/j.jembe.2015.08.006octocoral density dependenceDownload complete data for this publication (Excel file)
Other datasets related to this project:octocoral transects - adult colony height
attribute NC_GLOBAL projects_1_end_date String 2016-08
attribute NC_GLOBAL projects_1_geolocation String St. John, US Virgin Islands: 18.3185, 64.7242
attribute NC_GLOBAL projects_1_name String Ecology and functional biology of octocoral communities
attribute NC_GLOBAL projects_1_project_nid String 562086
attribute NC_GLOBAL projects_1_project_website String http://coralreefs.csun.edu/ (external link)
attribute NC_GLOBAL projects_1_start_date String 2013-09
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 18.3166
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String latitude,longitude
attribute NC_GLOBAL summary String Data describing Gorgonia ventalina interactions on St. John, Virgin Islands in 2015.
attribute NC_GLOBAL title String Data describing Gorgonia ventalina interactions on St. John, Virgin Islands in 2015.
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -64.72988
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable date   String  
attribute date bcodmo_name String date
attribute date description String Date sampling occurred; mm/dd/yy
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 18.3166, 18.3166
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude; N is positive
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -64.72988, -64.72988
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude; W is positve
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable number   short  
attribute number _FillValue short 32767
attribute number actual_range short 1, 171
attribute number bcodmo_name String sample
attribute number colorBarMaximum double 100.0
attribute number colorBarMinimum double 0.0
attribute number description String PI issued ID number for colony
attribute number long_name String Number
attribute number nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute number units String unitless
variable height   float  
attribute height _FillValue float NaN
attribute height actual_range float 14.1, 56.0
attribute height bcodmo_name String height
attribute height description String Height of each colony was measured to the nearest centimeter.
attribute height long_name String Height
attribute height units String centimeters
variable area   float  
attribute area _FillValue float NaN
attribute area actual_range float 68.0, 2664.5
attribute area bcodmo_name String surface_area
attribute area description String Surface area of the colonies determined from images
attribute area long_name String Area
attribute area units String centimeters squared
variable perimeter   float  
attribute perimeter _FillValue float NaN
attribute perimeter actual_range float 39.7, 821.8
attribute perimeter bcodmo_name String unknown
attribute perimeter description String Perimeter of colonies determined from images
attribute perimeter long_name String Perimeter
attribute perimeter units String centimeters
variable interaction   byte  
attribute interaction _FillValue byte 127
attribute interaction actual_range byte 0, 1
attribute interaction bcodmo_name String behav_code
attribute interaction description String 0=no interaction between colonies; 1= colony-colony interaction
attribute interaction long_name String Interaction
attribute interaction units String unitless
variable AsymSym   byte  
attribute AsymSym _FillValue byte 127
attribute AsymSym actual_range byte 0, 1
attribute AsymSym bcodmo_name String sample_descrip
attribute AsymSym description String 0=symetric colony; 1=asymetric colony
attribute AsymSym long_name String Asym Sym
attribute AsymSym units String unitless

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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