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    • Bat Activity Inventory at Pearl Harbor National Memorial 2024 - Open Format Dataset

    Metadata Updated: March 27, 2026

    We examined ‘ōpe‘ape‘a, or Hawaiian hoary bat (Lasiurus semotus; Chiroptera: Vespertilionidae), acoustic activity and surveyed potential roost trees at the Ford Island Chief Petty Officer’s (CPO) Bungalows Neighborhood of Pearl Harbor National Memorial (PERL) on the island of O‘ahu. We established four acoustic monitoring stations (PERL1–PERL4) that operated nightly to survey for ‘ōpe‘ape‘a echolocation activity from June to December 2024. Tree physiognomy data were collected at 12 potential roost trees and included tree species, tree height, diameter at breast height (DBH), percent canopy cover, distance to nearest tree, elevation, and canopy geometry. We collected 357,802 acoustic files over 672 station-nights across the four acoustic monitoring stations. ‘Ōpe‘ape‘a echolocation activity was detected over a total of 26 (4%) station-nights and during each month of the survey period except June. Echolocation activity peaked in September and October 2024, which is during the post-lactation and fledging period. These results represent a baseline for assessing ‘ōpe‘ape‘a acoustic activity and potential roosting resources in PERL.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: us-pd

    Downloads & Resources

    Dates

    Metadata Created Date March 27, 2026
    Metadata Updated Date March 27, 2026

    Metadata Source

    Harvested from DOI NPS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 27, 2026
    Metadata Updated Date March 27, 2026
    Publisher National Park Service
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/NPS_DataStore_2317469
    Data First Published 2026-03-16T00:00:00Z
    Data Last Modified 2026-03-16T00:00:00Z
    Category Data Package
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/nps-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 1b9d1f56-31ac-4bcf-824c-aac4f86fb5ef
    Harvest Source Id d917c1a9-26b7-43ea-b8c5-c77ec750a850
    Harvest Source Title DOI NPS DCAT-US
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2317469
    License http://www.usa.gov/publicdomain/label/1.0/
    Old Spatial -157.955078,21.3633385,-157.9366,21.3693
    Program Code 010:118, 010:119
    Source Datajson Identifier True
    Source Hash dee49a5f423db18ab317e10aee8cd776122f5d808993915259fbc0535731bf4f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -157.955078, 21.3633385, -157.955078, 21.3693, -157.9366, 21.3693, -157.9366, 21.3633385, -157.955078, 21.3633385}
    Temporal 2024-06-13/2024-12-11

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