BCO-DMO ERDDAP
Accessing BCO-DMO data |
log in
Brought to you by BCO-DMO |
Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Acces- sible | Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | E | Institution | Dataset ID |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
data | graph | files | public | [Predation Trials] - Green crab size based predation trials conducted in laboratory mesocosms at Romberg Tiburon Center, Tiburon, CA in 2015 (RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator) | I M | background | BCO-DMO | bcodmo_dataset_701987 |
Row Type | Variable Name | Attribute Name | Data Type | Value |
---|---|---|---|---|
attribute | NC_GLOBAL | access_formats | String | .htmlTable,.csv,.json,.mat,.nc,.tsv |
attribute | NC_GLOBAL | acquisition_description | String | We conducted short-term size-based predation (=cannibalism) experiments in which five smaller green crabs were placed in a laboratory mesocosm with a large adult green crab.\u00a0Size ratios of large to small crabs were experimentally varied using adult crabs of three size classes and juvenile crabs as small as were available representing recent recruits. Adult crabs were starved for 48 hours prior to the trial.\u00a0Alternate prey in the form of small clams were also available in the mesocosms.\u00a0Experiments were run for 24 hours after which are remaining crabs were retrieved and remeasured. All crabs were collected from Seadrift Lagoon, CA.\u00a0 See Turner et al. (2016)\u00a0Biological Invasions\u00a018: 533-548 for additional methodological details: Turner, B.C., de Rivera, C.E., Grosholz, E.D., & Ruiz, G.M. 2016. Assessing population increase as a possible outcome to management of invasive species. Biological Invasions, 18(2), pp 533\u2013548. doi:[10.1007/s10530-015-1026-9](\\"https://dx.doi.org/10.1007/s10530-015-1026-9\\") |
attribute | NC_GLOBAL | awards_0_award_nid | String | 699764 |
attribute | NC_GLOBAL | awards_0_award_number | String | OCE-1514893 |
attribute | NC_GLOBAL | awards_0_data_url | String | http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1514893 |
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 | Predation Trials PI: Edwin Grosholz (UC Davis) Co-PI: Catherine de Rivera & Gregory Ruiz (Portland State University) Version: 05 June 2017 |
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 | 2017-06-05T20:10:14Z |
attribute | NC_GLOBAL | date_modified | String | 2020-01-21T21:49:24Z |
attribute | NC_GLOBAL | defaultDataQuery | String | &time<now |
attribute | NC_GLOBAL | doi | String | 10.1575/1912/bco-dmo.701987.1 |
attribute | NC_GLOBAL | infoUrl | String | https://www.bco-dmo.org/dataset/701987 |
attribute | NC_GLOBAL | institution | String | BCO-DMO |
attribute | NC_GLOBAL | keywords | String | bco, bco-dmo, biological, chemical, data, dataset, date, dmo, erddap, found, management, notes, number, oceanography, office, origin, point, predator, predator_size, preliminary, prey, prey_found, prey_size_1, prey_size_2, prey_size_3, prey_size_4, prey_size_5, size, tank, tank_number, time, time2, time_point, trial, trial_number, tub, tub_number |
attribute | NC_GLOBAL | license | String | https://www.bco-dmo.org/dataset/701987/license |
attribute | NC_GLOBAL | metadata_source | String | https://www.bco-dmo.org/api/dataset/701987 |
attribute | NC_GLOBAL | param_mapping | String | {'701987': {}} |
attribute | NC_GLOBAL | parameter_source | String | https://www.bco-dmo.org/mapserver/dataset/701987/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 | Edwin Grosholz |
attribute | NC_GLOBAL | people_0_person_nid | String | 699768 |
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 | Portland State University |
attribute | NC_GLOBAL | people_1_affiliation_acronym | String | PSU |
attribute | NC_GLOBAL | people_1_person_name | String | Catherine de Rivera |
attribute | NC_GLOBAL | people_1_person_nid | String | 699771 |
attribute | NC_GLOBAL | people_1_role | String | Co-Principal Investigator |
attribute | NC_GLOBAL | people_1_role_type | String | originator |
attribute | NC_GLOBAL | people_2_affiliation | String | Portland State University |
attribute | NC_GLOBAL | people_2_affiliation_acronym | String | PSU |
attribute | NC_GLOBAL | people_2_person_name | String | Gregory Ruiz |
attribute | NC_GLOBAL | people_2_person_nid | String | 471603 |
attribute | NC_GLOBAL | people_2_role | String | Co-Principal Investigator |
attribute | NC_GLOBAL | people_2_role_type | String | originator |
attribute | NC_GLOBAL | people_3_affiliation | String | Woods Hole Oceanographic Institution |
attribute | NC_GLOBAL | people_3_affiliation_acronym | String | WHOI BCO-DMO |
attribute | NC_GLOBAL | people_3_person_name | String | Shannon Rauch |
attribute | NC_GLOBAL | people_3_person_nid | String | 51498 |
attribute | NC_GLOBAL | people_3_role | String | BCO-DMO Data Manager |
attribute | NC_GLOBAL | people_3_role_type | String | related |
attribute | NC_GLOBAL | project | String | Invasive_predator_harvest |
attribute | NC_GLOBAL | projects_0_acronym | String | Invasive_predator_harvest |
attribute | NC_GLOBAL | projects_0_description | String | The usual expectation is that when populations of plants and animals experience repeated losses to predators or human harvest, they would decline over time. If instead these populations rebound to numbers exceeding their initial levels, this would seem counter-intuitive or even paradoxical. However, for several decades mathematical models of population processes have shown that this unexpected response, formally known as overcompensation, is not only possible, but even expected under some circumstances. In what may be the first example of overcompensation in a marine system, a dramatic increase in a population of the non-native European green crab was recently observed following an intensive removal program. This RAPID project will use field surveys and laboratory experiments to verify that this population explosion results from overcompensation. Data will be fed into population models to understand to what degree populations processes such as cannibalism by adult crabs on juvenile crabs and changes in maturity rate of reproductive females are contributing to or modifying overcompensation. The work will provide important insights into the fundamental population dynamics that can produce overcompensation in both natural and managed populations. Broader Impacts include mentoring graduate trainees and undergraduate interns in the design and execution of field experiments as well as in laboratory culture and feeding experiments. The project will also involve a network of citizen scientists who are involved with restoration activities in this region and results will be posted on the European Green Crab Project website. This project aims to establish the first example of overcompensation in marine systems. Overcompensation refers to the paradoxical process where reduction of a population due to natural or human causes results in a greater equilibrium population than before the reduction. A population explosion of green crabs has been recently documented in a coastal lagoon and there are strong indications that this may be the result of overcompensation. Accelerated maturation of females, which can accompany and modify the expression of overcompensation has been observed. This RAPID project will collect field data from this unusual recruitment class and conduct targeted mesocosm experiments. These will include population surveys and mark-recapture studies to measure demographic rates across study sites. Laboratory mesocosm studies using this recruitment class will determine size specific mortality. Outcomes will be used in population dynamics models to determine to what degree overcompensation has created this dramatic population increase. The project will seek answers to the following questions: 1) what are the rates of cannibalism by adult green crabs and large juveniles on different sizes of juvenile green crabs, 2) what are the consequences of smaller size at first reproduction for population dynamics and for overcompensation and 3) how quickly will the green crab population return to the levels observed prior to the eradication program five years earlier? |
attribute | NC_GLOBAL | projects_0_end_date | String | 2016-11 |
attribute | NC_GLOBAL | projects_0_geolocation | String | Europe |
attribute | NC_GLOBAL | projects_0_name | String | RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator |
attribute | NC_GLOBAL | projects_0_project_nid | String | 699765 |
attribute | NC_GLOBAL | projects_0_start_date | String | 2014-12 |
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 | standard_name_vocabulary | String | CF Standard Name Table v55 |
attribute | NC_GLOBAL | summary | String | Green crab size based predation trials conducted in laboratory mesocosms at Romberg Tiburon Center, Tiburon, CA in 2015. |
attribute | NC_GLOBAL | title | String | [Predation Trials] - Green crab size based predation trials conducted in laboratory mesocosms at Romberg Tiburon Center, Tiburon, CA in 2015 (RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator) |
attribute | NC_GLOBAL | version | String | 1 |
attribute | NC_GLOBAL | xml_source | String | osprey2erddap.update_xml() v1.3 |
variable | trial_number | byte | ||
attribute | trial_number | _FillValue | byte | 127 |
attribute | trial_number | actual_range | byte | 2, 10 |
attribute | trial_number | bcodmo_name | String | exp_id |
attribute | trial_number | colorBarMaximum | double | 100.0 |
attribute | trial_number | colorBarMinimum | double | 0.0 |
attribute | trial_number | description | String | Trial number (2-10) |
attribute | trial_number | long_name | String | Trial Number |
attribute | trial_number | units | String | unitless |
variable | time_point | byte | ||
attribute | time_point | _FillValue | byte | 127 |
attribute | time_point | actual_range | byte | 0, 3 |
attribute | time_point | bcodmo_name | String | time_point |
attribute | time_point | description | String | Observation points 1-3 |
attribute | time_point | long_name | String | Time Point |
attribute | time_point | units | String | unitless |
variable | date | String | ||
attribute | date | bcodmo_name | String | date |
attribute | date | description | String | Calendar date (yyyy-mm-dd) |
attribute | date | long_name | String | Date |
attribute | date | nerc_identifier | String | https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ |
attribute | date | source_name | String | date |
attribute | date | time_precision | String | 1970-01-01 |
attribute | date | units | String | unitless |
variable | tank_number | byte | ||
attribute | tank_number | _FillValue | byte | 127 |
attribute | tank_number | actual_range | byte | 1, 9 |
attribute | tank_number | bcodmo_name | String | tank |
attribute | tank_number | colorBarMaximum | double | 100.0 |
attribute | tank_number | colorBarMinimum | double | 0.0 |
attribute | tank_number | description | String | Number identifying the tank. There was one tank for each set of one predator and five prey crabs, with three tanks in each of three larger tubs |
attribute | tank_number | long_name | String | Tank Number |
attribute | tank_number | units | String | unitless |
variable | tub_number | String | ||
attribute | tub_number | bcodmo_name | String | tank |
attribute | tub_number | description | String | Number identifying the tub. There were three tubs each containing three tanks. |
attribute | tub_number | long_name | String | Tub Number |
attribute | tub_number | units | String | unitless |
variable | predator_size | byte | ||
attribute | predator_size | _FillValue | byte | 127 |
attribute | predator_size | actual_range | byte | 7, 82 |
attribute | predator_size | bcodmo_name | String | width |
attribute | predator_size | description | String | Carapace width of single large crab in millimeters |
attribute | predator_size | long_name | String | Predator Size |
attribute | predator_size | units | String | millimeters (mm) |
variable | origin | String | ||
attribute | origin | bcodmo_name | String | origin |
attribute | origin | description | String | Collection location of crabs |
attribute | origin | long_name | String | Origin |
attribute | origin | units | String | unitless |
variable | time2 | String | ||
attribute | time2 | bcodmo_name | String | time |
attribute | time2 | description | String | Time of observation for 'time point' in Pacific time (HHMM) |
attribute | time2 | long_name | String | Time |
attribute | time2 | nerc_identifier | String | https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ |
attribute | time2 | units | String | unitless |
variable | prey_found | byte | ||
attribute | prey_found | _FillValue | byte | 127 |
attribute | prey_found | actual_range | byte | 0, 5 |
attribute | prey_found | bcodmo_name | String | count |
attribute | prey_found | description | String | Number of prey crabs recorded at time point (NA at time zero because crabs were added then) |
attribute | prey_found | long_name | String | Prey Found |
attribute | prey_found | units | String | unitless |
variable | prey_size_1 | byte | ||
attribute | prey_size_1 | _FillValue | byte | 127 |
attribute | prey_size_1 | actual_range | byte | 6, 48 |
attribute | prey_size_1 | bcodmo_name | String | width |
attribute | prey_size_1 | description | String | Carapace width of prey crab #1 |
attribute | prey_size_1 | long_name | String | Prey Size 1 |
attribute | prey_size_1 | units | String | millimeters (mm) |
variable | prey_size_2 | byte | ||
attribute | prey_size_2 | _FillValue | byte | 127 |
attribute | prey_size_2 | actual_range | byte | 6, 54 |
attribute | prey_size_2 | bcodmo_name | String | width |
attribute | prey_size_2 | description | String | Carapace width of prey crab #2 |
attribute | prey_size_2 | long_name | String | Prey Size 2 |
attribute | prey_size_2 | units | String | millimeters (mm) |
variable | prey_size_3 | byte | ||
attribute | prey_size_3 | _FillValue | byte | 127 |
attribute | prey_size_3 | actual_range | byte | 6, 49 |
attribute | prey_size_3 | bcodmo_name | String | width |
attribute | prey_size_3 | description | String | Carapace width of prey crab #3 |
attribute | prey_size_3 | long_name | String | Prey Size 3 |
attribute | prey_size_3 | units | String | millimeters (mm) |
variable | prey_size_4 | byte | ||
attribute | prey_size_4 | _FillValue | byte | 127 |
attribute | prey_size_4 | actual_range | byte | 5, 52 |
attribute | prey_size_4 | bcodmo_name | String | width |
attribute | prey_size_4 | description | String | Carapace width of prey crab #4 |
attribute | prey_size_4 | long_name | String | Prey Size 4 |
attribute | prey_size_4 | units | String | millimeters (mm) |
variable | prey_size_5 | byte | ||
attribute | prey_size_5 | _FillValue | byte | 127 |
attribute | prey_size_5 | actual_range | byte | 6, 51 |
attribute | prey_size_5 | bcodmo_name | String | width |
attribute | prey_size_5 | description | String | Carapace width of prey crab #5 |
attribute | prey_size_5 | long_name | String | Prey Size 5 |
attribute | prey_size_5 | units | String | millimeters (mm) |
variable | notes | String | ||
attribute | notes | bcodmo_name | String | comment |
attribute | notes | description | String | Additional comments about crabs |
attribute | notes | long_name | String | Notes |
attribute | notes | 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.