Advancing understanding of Cerulean warbler space use through the use of radio telemetry, and failure to advance migratory phenology in response to climate change may pose a significant threat to the Cerulean warbler.

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dc.contributor.advisor Islam, Kamal
dc.contributor.author Connare, Brandon M.
dc.date.accessioned 2020-10-21T15:13:40Z
dc.date.available 2020-10-21T15:13:40Z
dc.date.issued 2020-07-18
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/123456789/202418
dc.description Access to thesis restricted until 07/2023. en_US
dc.description.abstract The Cerulean Warbler (Setophaga cerulea) is a small, Neotropical migrant songbird that breeds in central and eastern United States, and southern Canada. This species has experienced a significant decline in population, and there are important gaps in our knowledge of this species’ biology. This research was intended to identify characteristics of Cerulean Warbler space use and phenology. Two types of space use, the territory and the home range, have both been studied for the Cerulean Warbler. However, studies differed in tracking methodologies, and a fair comparison between the territory and home range cannot be made. I used radio telemetry to track adult male Cerulean Warblers that were affixed with a radio-transmitter. I compared resulting territory and home range estimates for each bird to identify the relationship between these two space use areas. I also compared my resulting territory estimate with a previously published territory estimate, which used an alternative tracking method (spot-mapping), to determine if tracking methods have an effect on territory estimates. Cerulean Warbler home range estimates (n = 14, mean ± SE = 2.33 ± 0.29 ha) were significantly larger than territory estimates (n = 14, mean ± SE = 1.79 ± 0.39 ha). The telemetry-based territory estimates were significantly larger than the published territory estimate (mean = ~0.70 ha). Climate change is affecting the phenology of many species. I examined trends in Cerulean Warbler arrival timing to Indiana from 1982-2019. I also compared arrival and breeding phenologies with several climate variables. Cerulean Warblers did not advance their arrival timing significantly (1-4 days), while growing degree day accumulation indicates that spring conditions in Indiana have advanced by ~14 days. Migratory phenology was best predicted by growing degree days, but breeding phenology was not associated with any climate variable. en_US
dc.description.sponsorship Department of Biology
dc.subject.lcsh Cerulean warbler -- Home range -- Indiana
dc.subject.lcsh Cerulean warbler -- Indiana -- Phenology
dc.subject.lcsh Cerulean warbler -- Migration
dc.title Advancing understanding of Cerulean warbler space use through the use of radio telemetry, and failure to advance migratory phenology in response to climate change may pose a significant threat to the Cerulean warbler. en_US
dc.title.alternative Advancing understanding of Cerulean warbler space use through the use of radio telemetry, and failure to advance migratory phenology may pose a significant threat to the Cerulean warbler en_US
dc.description.degree Thesis (M.S.) en_US


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  • Master's Theses [5510]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

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