SOCIAL LEARNING AND FORAGING PROFICIENCY OF PALILA (LOXIOIDES BAILLEUI) IN AN AVIARY SETTING

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dc.contributor.advisorHart, Patrick
dc.contributor.authorKluzak, Christopher Zdenek
dc.contributor.departmentTropical Conservation Biology & Environmental Science
dc.date.accessioned2025-01-23T21:15:27Z
dc.date.available2025-01-23T21:15:27Z
dc.date.issued2024-12
dc.description.degreeM.S.
dc.identifier.urihttps://hdl.handle.net/10790/43922
dc.subjectConservation biology
dc.subjectBehavioral sciences
dc.subjectAnimal sciences
dc.subjectForaging Proficiency
dc.subjectLoxioides bailleui
dc.subjectPalila
dc.subjectSocial Learning
dc.titleSOCIAL LEARNING AND FORAGING PROFICIENCY OF PALILA (LOXIOIDES BAILLEUI) IN AN AVIARY SETTING
dc.typeThesis
dcterms.abstractThe Palila (Loxioides baiileui) is a critically endangered Hawaiian bird that relies on the unripe pods of Māmane (Sophora chrysophylla). Previous authors have shown that aviary-raised Palila drill directly into the seeds, while wild Palila peel the entire pod, and that after relocation within a wild population about one out of three aviary-raised birds begin to peel pods. In summer 2017, six aviary raised after second-year (ASY) adult birds were offered partially peeled pods to train them to fully peel pods. Tear lengths and other pod measurements were collected in 2017 and 2018. These were compared to other aviary-raised adults, second-year (SY) aviary-raised Palila, and a captive pair known to peel pods. While the training attempt was not successful, it was found that most birds can produce long tears even if the average tear length is low, and that ASY adults were far more proficient than SY adults. Depending on which measurement of foraging ability is used, females may be more proficient than males. Also, two birds that tended to create small tears survived the longest after the 2019 re-location to Puʻu Mali, a finding that has conservation implications. Some of the deaths of wild released birds were attributed to predatory birds, suggesting that predator avoidance training maybe more important for post-release survival than improving foraging proficiency.
dcterms.extent53 pages
dcterms.languageen
dcterms.publisherUniversity of Hawaii at Hilo
dcterms.rightsAll UHH 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.typeText
local.identifier.alturihttp://dissertations.umi.com/hilo.hawaii:10261

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