Please use this identifier to cite or link to this item: http://hdl.handle.net/10790/4598

Hawaiian Hoary Bat (Lasiurus cinereus semotus) Activity and Prey Availability at Kaloko-Honōkohau National Historical Park

File Size Format  
TR088_0618.pdf 1.66 MB Adobe PDF View/Open

Item Summary

Title:Hawaiian Hoary Bat (Lasiurus cinereus semotus) Activity and Prey Availability at Kaloko-Honōkohau National Historical Park
Authors:Montoya-Aiona, Kristina
Pinzari, Corinna
Bonaccorso, Frank
Keywords:Endangered species
Hawaii
Animals
Date Issued:May 2019
Series:Technical Report HCSU - 088
Abstract:We examined habitat use and foraging activity of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus), as well as nocturnal aerial insect abundance at Kaloko-Honōkohau National Historical Park located in the coastal region of Kailua-Kona, Hawai‘i Island. We evaluated bat activity in two habitat types, wooded shorelines beside brackish water fishponds and xeric lava fields dominated by two invasive plant species: white leadwood (Leucaena leucocephala, Fabaceae), and fountain grass (Cenchrus setaceus, Poaceae). We recorded bat echolocation calls at seven acoustic stations that operated nightly from November 2013 through February 2015. Additionally, three UV light traps were used to collect insects at three locations from dusk to dawn in January, April, July and November 2014. Bat acoustic activity showed seasonal patterns in pulse counts, call-events, feeding buzzes and frequency of occurrence with three major peaks in bat echolocation activity in November-December 2013, April-May 2014, and August-December 2014. Overall, bat acoustic activity was greatest at the shoreline of Kaloko Fishpond. Although there were no significant differences in insect biomass among collection stations, Hawaiian hoary bats use the Park as an important foraging habitat.
URI:http://hdl.handle.net/10790/4598
Rights:Attribution-NonCommercial-NoDerivs 3.0 United States
http://creativecommons.org/licenses/by-nc-nd/3.0/us/
Appears in Collections: Hawaii Cooperative Studies Unit (HCSU)


Please email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.

This item is licensed under a Creative Commons License Creative Commons