Testing alternative methods for estimation of bird migration phenology from GPS tracking data

Soriano-Redondo, Andrea, Acácio, Marta, Franco, Aldina M. A., Herlander Martins, Bruno, Moreira, Francisco, Rogerson, Katharine and Catry, Inês (2020) Testing alternative methods for estimation of bird migration phenology from GPS tracking data. Ibis, 162 (2). pp. 581-588. ISSN 0019-1019

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Abstract

The development and miniaturization of GPS tracking devices has enabled a better understanding of migration phenology, but it can be challenging to identify where and when migration starts and ends, and researchers rely on multiple methods to infer it. Here, we use GPS tracks of 18 trans-Saharan migrant White Storks Ciconia ciconia to determine how the choice of method influences the estimation of migratory timing and discuss its implications. We evaluate and provide R code for the implementation of five alternative methods: spatial threshold, absolute displacement, spatio-temporal displacement, net squared displacement and change point analysis. Spatial threshold, absolute displacement and spatio-temporal displacement methods produce, in most cases, significantly different estimates of migration timing and duration as compared with net squared displacement and change point analysis.

Item Type: Article
Additional Information: Special Issue: Avian Migration and Movement Special Issue
Uncontrolled Keywords: biologging,birds,gps,gsm loggers,migration phenology,migratory timing,ecology, evolution, behavior and systematics,animal science and zoology ,/dk/atira/pure/subjectarea/asjc/1100/1105
Faculty \ School: Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 31 Jan 2020 04:27
Last Modified: 02 Apr 2020 00:44
URI: https://ueaeprints.uea.ac.uk/id/eprint/73898
DOI: 10.1111/ibi.12809

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