Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA
Continuous movement monitoring is a powerful tool for evaluating reintroduction techniques and assessing how well reintroduced animals are adjusting to the wild. However, to date, continuous monitoring has only occurred for large-bodied species capable of carrying heavy tracking devices. In this stu...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-04-01
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| Series: | Global Ecology and Conservation |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S235198942100072X |
| _version_ | 1818944754741673984 |
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| author | Jennifer R. Smetzer Alison L. Greggor Kristina L. Paxton Bryce Masuda Eben H. Paxton |
| author_facet | Jennifer R. Smetzer Alison L. Greggor Kristina L. Paxton Bryce Masuda Eben H. Paxton |
| author_sort | Jennifer R. Smetzer |
| collection | DOAJ |
| description | Continuous movement monitoring is a powerful tool for evaluating reintroduction techniques and assessing how well reintroduced animals are adjusting to the wild. However, to date, continuous monitoring has only occurred for large-bodied species capable of carrying heavy tracking devices. In this study we used an automated VHF radio telemetry array to investigate the exploratory behavior and movement patterns of critically endangered ʻAlalā (Corvus hawaiiensis), reintroduced to the Island of Hawaiʻi in 2017. The 11 juvenile ʻAlalā we tracked exhibited high site fidelity and initial survival. Over time the birds showed decreased time spent at the supplemental feeders, and transitioned to more focused use of the landscape, suggesting increased foraging on wild food items. Birds with seemingly less spatial neophobia at release also made larger post-release exploratory movements. This study provides the first evidence that 1) supplemental feeding can support site fidelity for reintroduced ʻAlalā without restricting a transition to independent foraging, and 2) that pre-release personality metrics may be useful predictors for predicting post-release movements of ʻAlalā. Our work is the first to demonstrate the utility and power of automated telemetry for monitoring the reintroduction of small species. |
| first_indexed | 2024-12-20T07:48:15Z |
| format | Article |
| id | doaj.art-dc0173b21c6a42638602515304179b54 |
| institution | Directory Open Access Journal |
| issn | 2351-9894 |
| language | English |
| last_indexed | 2024-12-20T07:48:15Z |
| publishDate | 2021-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj.art-dc0173b21c6a42638602515304179b542022-12-21T19:47:55ZengElsevierGlobal Ecology and Conservation2351-98942021-04-0126e01522Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USAJennifer R. Smetzer0Alison L. Greggor1Kristina L. Paxton2Bryce Masuda3Eben H. Paxton4Hawai‘i Cooperative Studies Unit, University of Hawai]i at Hilo, PO Box 44, Hawai‘i National Park, HI 96718, USA; Corresponding author.Institute for Conservation Research, San Diego Zoo Global, 15600 San Pasqual Valley Road, Escondido, CA 92027-7000 USAHawai‘i Cooperative Studies Unit, University of Hawai]i at Hilo, PO Box 44, Hawai‘i National Park, HI 96718, USAInstitute for Conservation Research, San Diego Zoo Global, 15600 San Pasqual Valley Road, Escondido, CA 92027-7000 USAUS Geological Survey Pacific Island Ecosystems Research Center, PO Box 44, Hawai‘i National Park, HI 96718, USAContinuous movement monitoring is a powerful tool for evaluating reintroduction techniques and assessing how well reintroduced animals are adjusting to the wild. However, to date, continuous monitoring has only occurred for large-bodied species capable of carrying heavy tracking devices. In this study we used an automated VHF radio telemetry array to investigate the exploratory behavior and movement patterns of critically endangered ʻAlalā (Corvus hawaiiensis), reintroduced to the Island of Hawaiʻi in 2017. The 11 juvenile ʻAlalā we tracked exhibited high site fidelity and initial survival. Over time the birds showed decreased time spent at the supplemental feeders, and transitioned to more focused use of the landscape, suggesting increased foraging on wild food items. Birds with seemingly less spatial neophobia at release also made larger post-release exploratory movements. This study provides the first evidence that 1) supplemental feeding can support site fidelity for reintroduced ʻAlalā without restricting a transition to independent foraging, and 2) that pre-release personality metrics may be useful predictors for predicting post-release movements of ʻAlalā. Our work is the first to demonstrate the utility and power of automated telemetry for monitoring the reintroduction of small species.http://www.sciencedirect.com/science/article/pii/S235198942100072XAlalā (Corvus hawaiiensis)Automated telemetryExploratory movementPersonalityReintroductionSupplemental feeding |
| spellingShingle | Jennifer R. Smetzer Alison L. Greggor Kristina L. Paxton Bryce Masuda Eben H. Paxton Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA Global Ecology and Conservation Alalā (Corvus hawaiiensis) Automated telemetry Exploratory movement Personality Reintroduction Supplemental feeding |
| title | Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA |
| title_full | Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA |
| title_fullStr | Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA |
| title_full_unstemmed | Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA |
| title_short | Automated telemetry reveals post-reintroduction exploratory behavior and movement patterns of an endangered corvid, ʻAlalā (Corvus hawaiiensis) in Hawaiʻi, USA |
| title_sort | automated telemetry reveals post reintroduction exploratory behavior and movement patterns of an endangered corvid alala corvus hawaiiensis in hawai i usa |
| topic | Alalā (Corvus hawaiiensis) Automated telemetry Exploratory movement Personality Reintroduction Supplemental feeding |
| url | http://www.sciencedirect.com/science/article/pii/S235198942100072X |
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