{
  "type": "Collection",
  "stac_version": "1.0.0",
  "stac_extensions": ["https://stac-extensions.github.io/table/v1.2.0/schema.json"],
  "id": "farallon_bird-mammal",
  "title": "CalCOFI Bird & Mammal Census",
  "description": "Bird and mammal observations along CalCOFI (and NMFS, CPR) cruise transects, 1987-present. Transect effort, counts, and species live from NOAA ERDDAP (CAC_FI_SBAS_tr / CAC_FI_SBAS_obs / CAC_FI_SBAS_sp); behavior lookups curated via CCE-LTER DataZoo 255 (PI Bill Sydeman).\n",
  "keywords": ["EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS", "EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS"],
  "license": "custom",
  "providers": [
    {
      "name": "Farallon Institute",
      "roles": ["producer", "licensor"],
      "url": "https://www.faralloninstitute.org"
    },
    {
      "name": "CalCOFI",
      "roles": ["processor", "host"],
      "url": "https://calcofi.io"
    }
  ],
  "extent": {
    "spatial": {
      "bbox": [
        [-126.47, 29.77, -117.18, 37.84]
      ]
    },
    "temporal": {
      "interval": [
        [
          "1987-01-01T00:00:00Z",
          "2022-12-31T23:59:59Z"
        ]
      ]
    }
  },
  "table:tables": [
    {
      "name": "sample",
      "description": "One row per physical sampling event at its native grain (site, tow, net, cast, bottle, underway, transect, region pool). An adjacency list: `parent_sample_key` points at the containing event and `root_sample_key` at the top of the chain, so counting distinct events at any level is a single `GROUP BY`."
    },
    {
      "name": "obs",
      "description": "The occurrence-headline long table: one scalar measurement per row, environmental (`realm = 'env'`) and biological (`realm = 'bio'`) together. Biological taxon is the global `taxon_key`; sub-occurrence detail (length/stage bins, behavior) lives in `obs_attribute`, and event-level effort in `sample_measurement`."
    },
    {
      "name": "obs_attribute",
      "description": "Sub-occurrence attribution: the breakdown *within* an `obs` headline row. Covers numeric frequency distributions (length bins, stage numbers) and categorical breakdowns (seabird behavior). Counts here sum to the headline where the source is internally consistent."
    },
    {
      "name": "taxon",
      "description": "Taxonomic hierarchy for species via WoRMS and ITIS authorities (built from spp.duckdb via recursive CTEs)"
    },
    {
      "name": "dataset_taxon",
      "description": "Crosswalk from each dataset's own taxon vocabulary to the global `taxon_key`. `obs` resolves its taxon by joining this on (`dataset_key`, `ds_taxa_code`), so a dataset can keep its local codes without leaking them into the shared model."
    },
    {
      "name": "taxon_group",
      "description": "Portable groupings of taxa (phytoplankton functional groups, seabirds, marine mammals). Many taxa per group; a taxon may belong to several."
    }
  ],
  "summaries": {
    "calcofi:category": ["Seabirds & Marine Mammals"],
    "calcofi:variables": ["count", "count", "Seabirds & Marine Mammals"]
  },
  "links": [
    {
      "rel": "root",
      "href": "https://storage.googleapis.com/calcofi-db/stac/catalog.json",
      "type": "application/json"
    },
    {
      "rel": "parent",
      "href": "https://storage.googleapis.com/calcofi-db/stac/catalog.json",
      "type": "application/json"
    },
    {
      "rel": "self",
      "href": "https://storage.googleapis.com/calcofi-db/stac/collections/farallon_bird-mammal/collection.json",
      "type": "application/json"
    },
    {
      "rel": "about",
      "href": "https://calcofi.io/datasets/farallon_bird-mammal/",
      "type": "text/html",
      "title": "Dataset page"
    },
    {
      "rel": "license",
      "href": "https://oceanview.pfeg.noaa.gov/CalCOFI/app/resources/docs/Data_Sharing_Agreement_FarallonInstitute.pdf",
      "type": "text/html",
      "title": "Custom terms stated by the provider"
    }
  ]
}