M.S Thesis Defense: Chris Todd - Event Details

UH Hilo Home > News & Events

This event has concluded and is no longer current.

M.S Thesis Defense: Chris Todd

Location: Wentworth 14

Title: Effects of prey abundance on seasonal movements of the Hawaiian Hoary Bat (Lasiurus cinereus semotus)
Abstract
This study investigated how biotic and abiotic factors affect seasonal altitudinal movements of Hawaiian hoary bats (Lasiurus cinereus semotus) in eastern Hawaiʻi. I used an information-theoretic approach to evaluate if bat activity was associated with aerial insect abundance, temperature, rainfall, or reproductive season. Available insect taxa decreased with elevation, with Lepidoptera most abundant at middle and high elevations. Lepidoptera was consumed significantly more than any other insect taxa at low elevations (P < 0.03), and Coleoptera significantly more at middle elevations (P < 0.02). Insect taxa found in the diet of bats was proportional to their availability at low elevations (P = 0.9) and disproportional (favoring Coleoptera) to their availability at middle elevations (P < 0.001), suggesting that bats opportunistically forage at low elevations and selectively forage at middle elevations. Models indicate that temperature, rainfall, insect abundance and reproductive season are important for bat abundance at all sites (P = 0.05). Abundance of Diptera best predicted bat activity at low elevations (P = 0.02) and abundance of Hemiptera best predicted bat activity at middle elevations, but this was only marginally significant (P = 0.08). No significant correlation between insect taxa and bat activity was found at high elevations.

For more information, contact: hpoepoe@hawaii.edu 3-0791

What's also happening?

Week of November 18, 2012Next →
SunMonTueWedThuFriSat

Vagina Monologues Auditions

M.S Thesis Defense: Makani Gregg

Plaza Pizza Party (SAC)

Food Basket Fundraiser

UH Hilo Open Forum with UH President MRC Greenwood

TCBES M.S. Program Seminar

Community Forum with UH President MRC Greenwood

M.S Thesis Defense: Mark Manuel

Free Yoga

M.S Thesis Defense: Chris Todd

Pumpkin Pie Giveaway

M.S Thesis Defense: Troy Sakihara

Festival of One Act Plays

Holiday observed: Thanksgiving Day

Thanksgiving Brunch and Dinner

Non-Instructional Day

Announcements

International Buddy Program
Become a buddy for a new international student! We are looking for students, especially students from Hawaii and the US mainland, to volunteer as a buddy for a new international student in the fall. ...
Software Systems for Astronomy July 25-August 5
Mark your calendar for July 25 - August 5, 2016 (tentatively set) for the second annual Software Systems in Astronomy two week intensive class offered by Professor Albert Conrad. ...
Students and alums: Set up your online career portfolio now!
Have you signed up for College Central, UH Hilo's internship and employment placement site? www.collegecentral.com/hilo-hawaii/ Your college degree isn't a golden ticket to a dream job. ...

Disclaimer: The University of Hawaii at Hilo is not responsible for the contents, links and/or materials presented in any web site listed above that is not of the “hilo.hawaii.edu” or “.uhh.hawaii.edu” domains. All comments, complaints and grievances should be filed with the author, host and/or owner of said site.