@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/58072b9a-3ae0-4d1c-94b6-04aa9bd8d3c5> a dcat:Dataset ;
    dct:description "Two unique datasets were gathered to document whether flow management for hydropower affects the abundance and diversity of aquatic insect assemblages.  The first dataset was collected in Grand Canyon from 2012-2014 by citizen scientists rafting the Colorado River.  Simple light traps were set out each night in camp and used to capture the adult life stages of aquatic insects that emerged from the Colorado River.  Three aquatic insect taxa were captured in sufficient abundance to analyze statistically including midges (order Diptera, family Chironomidae), micro-caddisflies (order Trichoptera, family Hydroptilidae), and blackflies (order Diptera, family Simuliidae, principally  Simulium arcticum).  These data were used to identify whether flow management for hydropower at Glen Canyon Dam was affecting the abundance or diversity of aquatic insects throughout the 400 kilometer long Grand Canyon reach of the Colorado River.  The second dataset that was gathered represents estimates of aquatic insect diversity across 16 different dam regulated rivers of the western United States.  These data were originally collected by various agencies including US Geological Survey personnel, other state and federal agencies, and consulting firms using standard invertebrate sampling methods." ;
    dct:identifier "USGS:570fe1a6e4b0ef3b7ca3580c" ;
    dct:issued "2025-11-21T20:50:04.151271"^^xsd:dateTime ;
    dct:modified "20200827"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-119.3262 36.0156, -119.3262 48.4101, -106.7690 48.4101, -106.7690 36.0156, -119.3262 36.0156))"^^gsp:wktLiteral ] ;
    dct:title "Flow management for hydropower extirpates aquatic insects, undermining river food webs" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Theodore Kennedy" ;
            vcard:hasEmail <mailto:tkennedy@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/58072b9a-3ae0-4d1c-94b6-04aa9bd8d3c5/resource/32746b11-9082-416f-a4ec-642f9b3b1463>,
        <https://data.amerigeoss.org/dataset/58072b9a-3ae0-4d1c-94b6-04aa9bd8d3c5/resource/50e4c9c8-bf31-4656-b871-3f4d11cb6829> ;
    dcat:keyword "adult-aquatic-insects",
        "amerigeo",
        "amerigeoss",
        "arizona",
        "biodiversity",
        "biological-traits",
        "california",
        "causey-dam",
        "citizen-science",
        "ckan",
        "colorado",
        "colorado-plateau",
        "colorado-river",
        "crystal-dam",
        "dam",
        "deer-creek-dam",
        "echo-dam",
        "ephemeroptera",
        "ept",
        "ept-taxa",
        "flaming-gorge-dam",
        "flood-elevation",
        "fontenelle-dam",
        "geo",
        "geoss",
        "glen-canyon-dam",
        "grand-canyon",
        "green-river",
        "gunnison-river",
        "high-water-line",
        "holter-dam",
        "hoover-dam",
        "idaho",
        "kootenai-river",
        "libby-dam",
        "light-trapping-data",
        "light-traps",
        "lower-provo-river",
        "missouri-river",
        "montana",
        "national",
        "navajo-dam",
        "nevada",
        "new-mexico",
        "north-america",
        "ogden-river",
        "oregon",
        "owyhee-dam",
        "owyhee-river",
        "pine-flat-dam",
        "plecoptera",
        "river",
        "river-ecology",
        "san-juan-river",
        "starvation-dam",
        "strawberry-river",
        "tongue-dam",
        "tongue-river",
        "trichoptera",
        "united-states",
        "usgs-570fe1a6e4b0ef3b7ca3580c",
        "utah",
        "wanship-dam",
        "weber-river",
        "western-united-states",
        "wyoming" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/58072b9a-3ae0-4d1c-94b6-04aa9bd8d3c5/resource/32746b11-9082-416f-a4ec-642f9b3b1463> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T15:50:49.571435"^^xsd:dateTime ;
    dct:modified "2025-11-21T20:50:04.118239"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.570fe1a6e4b0ef3b7ca3580c.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/58072b9a-3ae0-4d1c-94b6-04aa9bd8d3c5/resource/50e4c9c8-bf31-4656-b871-3f4d11cb6829> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T15:50:49.571442"^^xsd:dateTime ;
    dct:modified "2025-11-21T20:50:04.118669"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/F7WM1BH4> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .