ERDDAP > info > bcodmo_dataset_641692

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
	set	data	graph		files	public	Rock wall manipulation experiment conducted in Bodega Bay, CA from 2010-2011		I   M	background			BCO-DMO	bcodmo_dataset_641692

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	The experiment was conducted on a vertical rock wall in the mid-high intertidal zone of Bodega Marine Reserve, Bodega Bay, CA, USA. Grazer diversity and substrate heterogeneity were factorially manipulated in 20cm x 20cm plots. Grazers were manipulated via direct removals from plots in order to generate monocultures of each of three gastropod taxa, the limpets, Lottia digitalis and Lottia scabra, and the snails Littorina spp. (L. plena and L. scutulata), along with an unmanipulated polyculture with all three gastropod grazers. Substrate heterogeneity was manipulated by scraping barnacle covered areas from the rock surface. Three barnacle treatments were used: two homogeneous treatments (full = no barnacle removal, none = all barnacles removed) and one heterogeneous treatment (half = barnacles removed from one half of plot but left intact on the other half). Grazer and substrate treatments were maintained over time by counting and removing unwanted grazers from plots and by removing new barnacle recruits from previously cleared areas. On each survey date, grazer abundance and visually-assessed percent cover of algal taxa were recorded. Reference: Matthew A. Whalen, Kristin M. Aquilino, John J. Stachowicz. 2016. Grazer diversity interacts with biogenic habitat heterogeneity to accelerate intertidal algal succession. Ecology. in press.
attribute	NC_GLOBAL	awards_0_award_nid	String	518659
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-0850707
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=0850707
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	Rock Wall Experiment PI: Jay Stachowicz (UC Davis) Version: 05 April 2016 **NOTE: Please refer to Documentation for description and units of measurement, especially for taxon and abundance.
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/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2016-04-01T21:37:33Z
attribute	NC_GLOBAL	date_modified	String	2016-04-06T16:58:21Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.641966
attribute	NC_GLOBAL	Easternmost_Easting	double	-123.0386
attribute	NC_GLOBAL	geospatial_lat_max	double	38.3244
attribute	NC_GLOBAL	geospatial_lat_min	double	38.3244
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-123.0386
attribute	NC_GLOBAL	geospatial_lon_min	double	-123.0386
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/641692
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	keywords	String	abundance, area, barn, barn_trtmt, barnacle, barnacle_trtmt, bco, bco-dmo, biological, block, chemical, data, dataset, date, day, dmo, erddap, herb, herb_trtmt, latitude, longitude, management, month, oceanography, office, plot, preliminary, survey, taxon, trtmt, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/641692/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/641692
attribute	NC_GLOBAL	Northernmost_Northing	double	38.3244
attribute	NC_GLOBAL	param_mapping	String	{'641692': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/641692/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of California-Davis
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UC Davis
attribute	NC_GLOBAL	people_0_person_name	String	John J. Stachowicz
attribute	NC_GLOBAL	people_0_person_nid	String	518660
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	Shannon Rauch
attribute	NC_GLOBAL	people_1_person_nid	String	51498
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	Intertidal Diversity
attribute	NC_GLOBAL	projects_0_acronym	String	Intertidal Diversity
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF award abstract: Stimulated in part by rapid changes in the biological composition and richness of most of Earth's ecosystems, considerable theoretical and empirical research has focused on understanding the effects of species richness on communities and ecosystems. This research has resulted in major advances and has shown that diversity can affect ecosystem processes. However, we are currently limited in our ability to draw generalities regarding these effects that transcend ecosystems and to apply this knowledge to conservation and management efforts because: (1) most experiments are of short duration and relatively few are conducted under field conditions on natural substratum; and (2) most experiments manipulate only diversity and so cannot assess the strength of diversity relative to other known drivers of ecosystem functioning. Previous NSF-funded work found that species diversity of seaweeds does increase the accumulation of producer biomass and the diversity and richness of mobile invertebrates associated with those seaweeds. In this project, the investigator will examine the interactive effects of plant and grazer richness on seaweed productivity and assemblage recovery from disturbance by (a) continuing our ongoing diversity manipulations (b) nesting additional experiments manipulating grazers within these plots, and (c) performing new experiments to examine effects of grazer richness on algal assemblages. The main experiment consists of 72 1.5 m diameter plots in the rocky intertidal at Bodega Bay, California, split into 6 different treatments: a monoculture of each of the 4 algal species that comprise >85% of the algal cover in our system; a 4-species polyculture, and an unmanipulated control plot. The PI created these "diversity" plots by weeding under the auspices of a previous NSF grant. Objectives of this project are: (1) To nest within the diversity plots smaller cleared areas that either allow or prohibit access by grazers in order to test the interactive effects of algal diversity and herbivory on recovery of the algal assemblage from disturbance (or resilience). (2) To conduct a separate combined additive and replacement series experiment to examine the effects of herbivore identity and richness on algal recruitment and succession. (3) While the nested grazer-exclusion experiment is in progress, to continue weeding and collecting data in the uncleared portion of these plots as a continued test of the univariate effect of algal richness on the cover of algae and sessile invertebrates, and on mobile invertebrate abundance, richness, and diversity. Together with previous results, this will produce a 7 year record of the effects of seaweed richness on rocky intertidal communities, which will then be correlated with archived environmental data. (4) After the nested grazer exclusion experiment is complete, to cease weeding plots and track their reinvasion by weeded species in order to evaluate the mechanisms maintaining diversity of perennial algae. Understanding the consequences of simultaneous changes in grazer abundance or diversity and algal diversity as well as the long-term effects of both on the resilience of algal communities in the face of disturbance will provide a better understanding of both the consequences of human encroachment into these habitats and the appropriate management efforts needed to minimize impacts and maintain ecosystem functioning. This is especially critical given that harvesting and trampling by humans are altering the diversity and composition of herbivores and algae in the California rocky intertidal zone.
attribute	NC_GLOBAL	projects_0_end_date	String	2014-02
attribute	NC_GLOBAL	projects_0_geolocation	String	Bodega Bay, CA (38.3244 N, 123.0386 W); Temperate rocky intertidal zone
attribute	NC_GLOBAL	projects_0_name	String	Long-term and interactive effects of seaweed diversity and herbivory on intertidal community structure and functioning
attribute	NC_GLOBAL	projects_0_project_nid	String	518661
attribute	NC_GLOBAL	projects_0_start_date	String	2009-03
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	38.3244
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	subsetVariables	String	location,latitude,longitude
attribute	NC_GLOBAL	summary	String	These data summarize results from a field experiment testing effects of gastropod grazer diversity and substrate heterogeneity generated by barnacles on intertidal algal succession. The\u00a0manipulation experiment was conducted in Bodega Bay, CA from 2010-2011.
attribute	NC_GLOBAL	title	String	Rock wall manipulation experiment conducted in Bodega Bay, CA from 2010-2011
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-123.0386
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	location		String
attribute	location	bcodmo_name	String	unknown
attribute	location	description	String	Site name.
attribute	location	long_name	String	Location
attribute	location	units	String	dimensionless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	38.3244, 38.3244
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 of site.
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/
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	-123.0386, -123.0386
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 of site. Negative = West.
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/
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	survey		byte
attribute	survey	_FillValue	byte	127
attribute	survey	actual_range	byte	1, 9
attribute	survey	bcodmo_name	String	unknown
attribute	survey	description	String	Algal/animal surveys listed numerically in chronological order.
attribute	survey	long_name	String	Survey
attribute	survey	units	String	dimensionless
variable	date		int
attribute	date	_FillValue	int	2147483647
attribute	date	actual_range	int	20100922, 20110816
attribute	date	bcodmo_name	String	date
attribute	date	description	String	The date a particular plot was sampled. format: YYYYmmdd
attribute	date	long_name	String	Date
attribute	date	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	date	units	String	unitless
variable	month		String
attribute	month	bcodmo_name	String	unknown
attribute	month	description	String	2-digit month of sampling.
attribute	month	long_name	String	Month
attribute	month	units	String	mm (01 to 12)
variable	day		String
attribute	day	bcodmo_name	String	day
attribute	day	description	String	2-digit day of month of sampling.
attribute	day	long_name	String	Day
attribute	day	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/DAYXXXXX/
attribute	day	units	String	dd (01 to 31)
variable	year		short
attribute	year	_FillValue	short	32767
attribute	year	actual_range	short	2010, 2011
attribute	year	bcodmo_name	String	year
attribute	year	description	String	4-digit year of sampling. in YYYY format
attribute	year	long_name	String	Year
attribute	year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
attribute	year	units	String	unitless
variable	plot		byte
attribute	plot	_FillValue	byte	127
attribute	plot	actual_range	byte	1, 70
attribute	plot	bcodmo_name	String	unknown
attribute	plot	description	String	The unit of replication; each plot consisted of a 20cm x 20cm square surrounded by marine epoxy (Z-spar A-788 Splash-Zone).
attribute	plot	long_name	String	Plot
attribute	plot	units	String	dimensionless
variable	block		byte
attribute	block	_FillValue	byte	127
attribute	block	actual_range	byte	1, 2
attribute	block	bcodmo_name	String	unknown
attribute	block	description	String	Each of two spatial blocks (1 and 2) that are on opposite sides of a channel that feeds an elogate pool at the base of the rock wall.
attribute	block	long_name	String	Block
attribute	block	units	String	dimensionless
variable	herb_trtmt		String
attribute	herb_trtmt	bcodmo_name	String	unknown
attribute	herb_trtmt	description	String	Herbivore (Grazer) treatment: A=all three species; L=Littorina only (limpets removed); D=Lottia digitalis only; S=Lottia scabra only.
attribute	herb_trtmt	long_name	String	Herb Trtmt
attribute	herb_trtmt	units	String	dimensionless
variable	barnacle_trtmt		String
attribute	barnacle_trtmt	bcodmo_name	String	unknown
attribute	barnacle_trtmt	description	String	Barnacle treatment: full (no barnacles removed); none (all barnacles removed); half (barnacles removed from one half of plot).
attribute	barnacle_trtmt	long_name	String	Barnacle Trtmt
attribute	barnacle_trtmt	units	String	dimensionless
variable	barn_trtmt		String
attribute	barn_trtmt	bcodmo_name	String	unknown
attribute	barn_trtmt	description	String	Barnacle subtreatment: Y (plot/side with barnacles); N (plot/side without barnacles); H (plot with half barnacle cover).
attribute	barn_trtmt	long_name	String	Barn Trtmt
attribute	barn_trtmt	units	String	dimensionless
variable	area		short
attribute	area	_FillValue	short	32767
attribute	area	actual_range	short	100, 200
attribute	area	bcodmo_name	String	unknown
attribute	area	description	String	Area occupied by reference plot or side of plot in cm^2; separates full plots from sides within plots in the half barnacle treatment.
attribute	area	long_name	String	Area
attribute	area	units	String	square centimeters (cm^2)
variable	taxon		String
attribute	taxon	bcodmo_name	String	taxon
attribute	taxon	description	String	Taxon/group measured: new_barn = new barnacles; diatoms = microalgae; ulva = Ulva spp.; endo = Endocladia muricata; masto = Mastocarpus papillatus; hilden = Hildenbrandia sp.; petro = Mastocarpus papillatus tetrasporophyte (aka Petrocelis phase); porphy = Pyropia perforata (formerly Porphyra); pelv = Pelvetiopsis limitata; clad = Cladopohora sp.; enc_coral = encrusting coralline red algae; cumagloia = Cumagloia andersonii; littorina = Littorina sp.; L_scabra = Lottia scabra; L_digitalis = Lottia digitalis.
attribute	taxon	long_name	String	Taxon
attribute	taxon	units	String	dimensionless
variable	abundance		float
attribute	abundance	_FillValue	float	NaN
attribute	abundance	actual_range	float	0.0, 2429.0
attribute	abundance	bcodmo_name	String	abundance
attribute	abundance	description	String	new_barn = Number of newly settled barnacles counted and subsequently removed from cleared areas (half and no barnacle treatments). diatoms, ulva, endo, masto, hilden, petro, porphy, pelv, clad, enc_coral, cumagloia = Visual percent cover estimate of the taxon/group in plot/side of plot. littorina = Number of Littorina sp. counted in plot and subsequently removed from herbivore treatments D and S. L_scabra = Number of Lottia scabra counted in plot and subsequently removed from herbivore treatments D and L. L_digitalis = Number of Lottia digitalis counted in plot and subsequently removed from herbivore treatments S and L.
attribute	abundance	long_name	String	Abundance
attribute	abundance	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/B070/
attribute	abundance	units	String	varies by taxon/group (see description)

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.