High Elevation Cave Surveys for Bats and White Nose Syndrome Completed
This project examined altitudinal movements of the endangered Hawaiian hoary bat and their use of high elevation caves on the slopes of Mauna Loa volcano on the island of Hawai‘i.
Overview:
Baseline survey data were obtained during this project to examine the altitudinal movements of the endangered Hawaiian hoary bat Lasiurus cinereus semotus and their use of caves on the slopes of Mauna Loa volcano on the island of Hawai‘i. From mummified carcasses and skeletons, it is known that Hawaiian hoary bats enter and use caves in Hawai‘i although this is unusual in populations on continental North America. Investigations included the use of acoustic monitoring and visual surveys.
Highlights and Key Findings:
Field work began on this project November 2012 and was completed in August 2013. Key findings include acoustic documentation that high elevation lava tube entrance areas between 2,200 meters and 3,600 meters in the Mauna Loa Forest Reserve are important winter foraging sites for the endangered Hawaiian Hoary Bat; the primary food source are noctuid moths that shelter in the cave by day and fly by night out of the caves; cave temperatures above 3,000 meters could potentially support growth of the fungus that is the causative agent of White-Nose Syndrome (WNS) in bats; Hawaiian hoary bats have not been found to use high elevation lava tubes as hibernacula or as day roost sites; no cases of WNS have been observed in bats in Hawai‘i.
Progress:
This project is complete. A comprehensive technical report summarizing the winter use of caves by Hawaiian hoary bats is now available.
Below are publications associated with this project.
Screening and biosecurity for White-nose Fungus Pseudogymnoascus destructans (Ascomycota: Pseudeurotiaceae) in Hawai‘i
Winter distribution and use of high elevation caves as foraging sites by the endangered Hawaiian hoary bat, Lasiurus cinereus semotus
Below are partners associated with this project.
- Overview
This project examined altitudinal movements of the endangered Hawaiian hoary bat and their use of high elevation caves on the slopes of Mauna Loa volcano on the island of Hawai‘i.
Overview:
Baseline survey data were obtained during this project to examine the altitudinal movements of the endangered Hawaiian hoary bat Lasiurus cinereus semotus and their use of caves on the slopes of Mauna Loa volcano on the island of Hawai‘i. From mummified carcasses and skeletons, it is known that Hawaiian hoary bats enter and use caves in Hawai‘i although this is unusual in populations on continental North America. Investigations included the use of acoustic monitoring and visual surveys.
Highlights and Key Findings:
Field work began on this project November 2012 and was completed in August 2013. Key findings include acoustic documentation that high elevation lava tube entrance areas between 2,200 meters and 3,600 meters in the Mauna Loa Forest Reserve are important winter foraging sites for the endangered Hawaiian Hoary Bat; the primary food source are noctuid moths that shelter in the cave by day and fly by night out of the caves; cave temperatures above 3,000 meters could potentially support growth of the fungus that is the causative agent of White-Nose Syndrome (WNS) in bats; Hawaiian hoary bats have not been found to use high elevation lava tubes as hibernacula or as day roost sites; no cases of WNS have been observed in bats in Hawai‘i.
Progress:
This project is complete. A comprehensive technical report summarizing the winter use of caves by Hawaiian hoary bats is now available.
- Publications
Below are publications associated with this project.
Screening and biosecurity for White-nose Fungus Pseudogymnoascus destructans (Ascomycota: Pseudeurotiaceae) in Hawai‘i
Introduced pathogens causing emerging infectious diseases (EIDs) are serious contemporary threats to animal, plant, and ecosystem health. The invasive fungus, Pseudogymnoascus destructans, has established populations of European origin in North America, resulting in mass mortality of several hibernating bat species. Extensive monitoring for this pathogen exists in Europe and North America, but limAuthorsVioleta Zhelyazkova, Nia Toshkova, Serena E Dool, Frank Bonaccorso, Corinna A. Pinzari, Kristina Montoya-Aiona, Sebastien J PuechmailleWinter distribution and use of high elevation caves as foraging sites by the endangered Hawaiian hoary bat, Lasiurus cinereus semotus
We examine altitudinal movements involving unusual use of caves by Hawaiian hoary bats, Lasiurus cinereus semotus, during winter and spring in the Mauna Loa Forest Reserve (MLFR), Hawai‘i Island. Acoustic detection of hoary bat vocalizations, were recorded with regularity outside 13 lava tube cave entrances situated between 2,200 to 3,600 m asl from November 2012 to April 2013. Vocalizations wereAuthorsFrank Bonaccorso, Kristina Montoya-Aiona, Corinna A. Pinzari, Christopher M. Todd - Partners
Below are partners associated with this project.