Skip to main content

Hawaii Island, Hawaiian hoary bat roosting ecology and detection 2018-2019


Publication Date
Start Date
End Date


Montoya-Aiona, K., Calderon, F., Casler, S., Courtot, K., Gorresen, P.M., and Hoeh, J., 2020, Hawaii Island, Hawaiian hoary bat roosting ecology and detection 2018-2019: U.S. Geological Survey data release:


The Hawaiian hoary bat (Lasiurus cinereus semotus), a federally and state listed endangered subspecies, is the only extant native terrestrial mammal in the Hawaiian archipelago. It is an insectivorous, solitary and foliage-roosting species that generally roosts alone or in mother-pup family groups. A total of 58 bats (17 female; 41 male; 56 adult; 2 juvenile) were captured at multiple locations on the east side of Hawaii Island from May 2018 through September 2019. Radio transmitters were affixed to 56 bats including two individuals that were recaptured and radio-tagged twice. When possible, radio telemetry was used to locate bats in trees and forest stands used for day-roosting. A total of 23 trees were identified as bat day-roosts [...]

Child Items (6)


Attached Files

Click on title to download individual files attached to this item.

“Roosting Hawaiian Hoary Bat. Photo credit: Kristina Montoya-Aiona.”
thumbnail 1.18 MB image/jpeg


The Hawaii Endangered Species Recovery Committee has identified research on distribution and trends, habitat suitability, and take monitoring among priority information needed to inform best management actions for the endangered Hawaiian hoary bat (Lasiurus cinereus semotus). We located and characterized roost trees and forest stands, monitored bat fidelity to roost locations, used thermal video and acoustic recordings to monitor bat maternity roosts, and conducted trials to test the efficacy of searchers to locate roosting bats in a variety of habitat types, including areas managed for timber. These data were collected to provide much needed new information on the roosting ecology and detection of the species.
Roosting Hawaiian Hoary Bat. Photo credit: Kristina Montoya-Aiona.
Roosting Hawaiian Hoary Bat. Photo credit: Kristina Montoya-Aiona.


Spatial Services

ScienceBase WMS


  • Pacific Island Ecosystems Research Center
  • USGS Data Release Products



Additional Information


Type Scheme Key
DOI doi:10.5066/P9R95UYT

Item Actions

View Item as ...

Save Item as ...

View Item...