Column | Label | Type | Definition | |
---|---|---|---|---|

sample_plot | midge sampling plot | Nominal | The sampling plots with different midge exclusion cages, 18 in total. e = full exclusion cage, m= partial exclusion cage (mock cage), c = control plot with no frame or mesh cage. The number represents the plot number. For example, 1c represents the first plot which is a control plot. The following are all plots used in the experiment:1c, 1e, 1m, 2c, 2e, 2m, 3c, 3e, 3m, 4c, 4e, 4m, 5c, 5e, 5m, 6c, 6e, and 6m. | |

exclusion_treatment | midge exclusion treatment | Nominal | The midge exclusion cage used in a particular sampling plot where e = full exclusion cage, m= partial exclusion cage (mock cage), c = control plot with no frame or mesh cage. | |

rep | replicate number | Nominal | replicate number | |

trap_setdate | midge trap set date | Date/time | the date the infall trap was set or re-set, at which point the trap started with zero midges | |

trap_collectdate | midge trap collect date | Date/time | the date the infall trap was emptied, usually followed by being immediately re-set. | |

is_subsample | subsample analysis for midges | Nominal | whether or not an infall trap was subsampled when counted for the number of midges (by morphospecies). Based on the density of midges in an infall trap on a given collection date. Generally, if there were hundreds to thousands of midges a subsample analysis was performed. y= yes a subsample was performed, n= no a subsample was not performed. | |

tray_type | midge tray type | Nominal | The type of tray used in counting the midges. 3 types of trays were used: small, large1, and large2. The areas are as follows: small = 731 square centimeters large1 = 1862.40 square centimeters large2 = 1247 square centimeters | |

sample_session | midge sampling session | Nominal | the number of sampling sessions in a season as defined from trap set to collection. the first trap set date to the first trap collect date would have a sampling session = 1, the second trap set date to the second trap collect date would have a sampling session =2, and so forth. | |

subsamp_chiron | number of subsamples for Chironomus | Nominal | if a subsample was performed, the number of subsamples performed for the morphospecies chironomus | |

subsamp_tany | number of subsamples for Tanytarsus | Nominal | if a subsample was performed, the number of subsamples performed for the morphospecies Tanytarsus. | |

subsamp_simuliidae | number of subsamples for Simuliidae | Nominal | if a subsample was performed, the number of subsamples peformed for arthropods only identified to the family level = Simuliidae | |

rawcount_chiron | raw count of Chironomus islandicus | Nominal | the number of Chironomus islandiucs counted in an infall trap. if a subsample was performed this is the total number of Chironomus counted from those subsamples. | |

rawcount_tany | raw count of Tanytarsus gracilentus | Nominal | the number of Tanytarsus gracilentus counted in an infall trap. if a subsample was performed this is the total number of Tanytarsus counted from those subsamples. | |

rawcount_simuliidae | raw count of Simuliidae | Nominal | the number of midges counted from an infall trap identified to the family level of Simuliidae. if a subsample was performed this is the total number of Simuliidae counted from those subsamples. | |

rawcount_others | raw count of other arthropods | Nominal | the number of arthropods not classified as Chironomus islandicus, Tanytarsus gracilentus, or Simullidae. | |

fracsub_chiron | Chironomus islandicus fraction subsampled | Nominal | If a subsample was performed for Chironomus islandicus the fraction of the tray that was subsampled. Calculated as (subsamp_chiron * (ring area/ tray_type area)). | |

fracsub_tany | Tanytarsus gracilentus fraction subsampled | Nominal | If a subsample was performed for Tanytarsus gracilentus the fraction of the tray that was subsampled. Calculated as (subsamp_tany * (ring area/ tray_type area)). | |

fracsub_simuliidae | Simuliidae fraction subsampled | Nominal | If a sample was performed for midges identified only to the family level of Simuliidae, the fraction of the tray that was subsampled. Calculated as (subsamp_simuliidae * (ring area/ tray_type area)). | |

count_chiron | count of Chironomus islandicus accounting for subsampling | Physical quantity | The total number of Chironomus islandicus in the tray accounting for subsampling. If subsampling was performed calculated as (rawcount_chiron/fracsub_chiron). | |

count_tany | count of Tanytarsus gracilentus accounting for subsampling | Physical quantity | The total number of Tanytarsus gracilentus in the tray accounting for subsampling. If subsampling was performed calculated as (rawcount_tany/fracsub_tany) | |

count_simuliidae | count of Simuliidae accounting for subsampling | Nominal | The total number of midges identified to the family level of Simuliidae in the tray, accounting for subsampling. If subsampling was performed calculated as (rawcount_simuliidae/fracsub_simuliidae) | |

count_other | count of other arthropods accounting for subsampling | Nominal | The total number of other arthropods in the tray, accounting for subsampling. | |

notes | notes | Nominal | notes | |

midgeflag | data flag for midge infall trap | Nominal | if the sample of midges collected from an infall trap for a particular sampling session is suspect, a data flag represented as "f" is assigned. Data flags are typically assigned for rubber band failures, and if part or all of a sample was lost. |

Column | Filter | |
---|---|---|

trap_setdate |