Acoustic surveys of Hawaiian hoary bats in Kahikinui Forest Reserve and Nakula Natural Area Reserve on the island of Maui

dc.contributor.author Todd, Christopher M.
dc.contributor.author Pinzari, Corinna A.
dc.contributor.author Bonaccorso, Frank J.
dc.date.accessioned 2016-07-08T23:54:48Z
dc.date.available 2016-07-08T23:54:48Z
dc.date.issued 2016-07-08
dc.description.abstract The Kahikinui Forest Reserve and the adjoining Nakula Natural Area Reserve (KFR-NNAR) was established in 2011 as a conservation area on the leeward slope of Haleakalā Volcano on the island of Maui to protect unique natural features and endangered species including the Hawaiian hoary bat, Lasiurus cinereus semotus. We recorded bat vocalizations from July 2012 to November 2014 using automated echolocation detectors at 14 point locations in the KFR-NNAR. Our study area included remnants of recovering mesic montane forest with interspersed grasses (1,250‒1,850 m elevation, hereafter called “forest”) and xeric subalpine shrubland plant communities (1,860‒2,800 m, hereafter called “shrubland”). Monthly detections of Hawaiian hoary bats, Lasiurus cinereus semotus, within the KFR-NNAR identified areas of high and low detection probability as well as foraging activity. Sixty per cent of all detector-nights had confirmed bat vocalizations and included detections in every month of the study. Monthly detection probability values were highest from July to November 2012; these values were significantly greater than values measured in any month thereafter. Pooled values of detection probabilities, mean pulses/night, percentage of nights with feeding activity, and acoustic detections all were greater in the recovering forest zone than corresponding values from the shrublands. Our data provide baseline levels of hoary bat echolocation activity that may be compared with future studies in the KFR-NNAR relative to success criteria for Hawaiian hoary bat habitat restoration.
dc.format.extent 26
dc.identifier.uri http://hdl.handle.net/10790/2761
dc.language.iso en-US
dc.relation.ispartofseries Technical Report HCSU - 078
dc.subject Shrublands
dc.subject Forests and forestry
dc.subject Xeric ecology
dc.subject ecolocation
dc.subject detection probability
dc.title Acoustic surveys of Hawaiian hoary bats in Kahikinui Forest Reserve and Nakula Natural Area Reserve on the island of Maui
dc.type Technical Report
dc.type.dcmi Text
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Bonaccorso_Kahikinui71116.pdf
Size:
1.33 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.62 KB
Format:
Item-specific license agreed upon to submission
Description: