Aeʻo (Hawaiian Stilt, Himantopus mexicanus knudensi) Reproduction and Survival

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dc.contributor.advisor Price, Melissa R.
dc.contributor.author Idle, Jessica Lauren
dc.contributor.department Natural Resources and Environmental Management
dc.date.accessioned 2023-09-28T20:14:59Z
dc.date.available 2023-09-28T20:14:59Z
dc.date.issued 2023
dc.description.degree M.S.
dc.identifier.uri https://hdl.handle.net/10125/106107
dc.subject Wildlife conservation
dc.subject Wildlife management
dc.subject Ecology
dc.subject Aeʻo
dc.subject Hawaiian Stilt
dc.subject Hawaiian Waterbirds
dc.subject Reproduction
dc.subject Survival
dc.title Aeʻo (Hawaiian Stilt, Himantopus mexicanus knudensi) Reproduction and Survival
dc.type Thesis
dcterms.abstract With global biodiversity declining, research in reproductive biology is necessary to understand population dynamics and develop strategies for the conservation of threatened and endangered species. Following listing as ‘endangered’ under the Endangered Species Act (ESA) in 1970, the Aeʻo (Hawaiian Stilt, Himantopus mexicanus knudensi) population has steadily increased due to the designation and protection of wetland areas across the main island chain, and conservation actions such as predator control, habitat restoration, and educating the public. However, the species continues to be conservation-reliant, with continued human intervention necessary to maintain populations. This study filled gaps in knowledge regarding survival and reproduction dynamics for Aeʻo. In Chapter 1, I: (1) compiled and evaluated data pertaining to Aeʻo reproduction and survival since they were ESA-listed in 1970; and (2) determined and assessed reproductive trends over time. In Chapter 2, I: (1) calculated chick survival rates; and (2) explored chick home range sizes in relation to patch size and survival. Key results of this thesis were that: (1) overall Aeʻo reproductive success has not changed over the last 50 years, though there have been increases in nesting and fledging success; (2) chick movement is restricted by barriers such as roads, fences, and developed areas; and (3) chick mortality is high, with 86% of chicks perishing in the first seven days of life. This information, amongst other results and outputs within this thesis, may be useful in decision-making, future analyses, and implementing management actions. Also included in this thesis are recommended management actions based on the results of this study.
dcterms.extent 106 pages
dcterms.language en
dcterms.publisher University of Hawai'i at Manoa
dcterms.rights All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.type Text
local.identifier.alturi http://dissertations.umi.com/hawii:11868
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