Dr Jonathan Drury jonathan.p.drury@durham.ac.uk
Associate Professor
Continent-scale phenotype mapping using photographs from citizen scientists
Drury, J.P.; Barnes, M.; Finneran, A.; Harris, M.; Grether, G.F.
Authors
M. Barnes
A. Finneran
M. Harris
G.F. Grether
Abstract
Field investigations of phenotypic variation in free‐living organisms are often limited in scope owing to time and funding constraints. By collaborating with online communities of amateur naturalists, investigators can greatly increase the amount and diversity of phenotypic data in their analyses while simultaneously engaging with a public audience. Here, we present a method for quantifying phenotypes of individual organisms in citizen scientists’ photographs. We then show that our protocol for measuring wing phenotypes from photographs yields accurate measurements in two species of Calopterygid damselflies. Next, we show that, while most observations of our target species were made by members of the large and established community of amateur naturalists at iNaturalist.org, our efforts to increase recruitment through various outreach initiatives were successful. Finally, we present results from two case studies: (1) an analysis of wing pigmentation in male smoky rubyspots (Hetaerina titia) showing previously undocumented geographical variation in a seasonal polyphenism, and (2) an analysis of variation in the relative size of the wing spots of male banded demoiselles (Calopteryx splendens) in Great Britain questioning previously documented evidence for character displacement. Our results demonstrate that our protocol can be used to create high quality phenotypic datasets using citizen scientists’ photographs, and, when combined with metadata (e.g., date and location), can greatly broaden the scope of studies of geographical and temporal variation in phenotypes. Our analyses of the recruitment and engagement process also demonstrate that collaborating with an online community of amateur naturalists can be a powerful way to conduct hypothesis‐driven research aiming to elucidate the processes that impact trait evolution at landscape scales.
Citation
Drury, J., Barnes, M., Finneran, A., Harris, M., & Grether, G. (2019). Continent-scale phenotype mapping using photographs from citizen scientists. Ecography, 42(8), 1436-1445. https://doi.org/10.1111/ecog.04469
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 28, 2019 |
Online Publication Date | Apr 2, 2019 |
Publication Date | Aug 31, 2019 |
Deposit Date | Apr 1, 2019 |
Publicly Available Date | Apr 2, 2020 |
Journal | Ecography |
Print ISSN | 0906-7590 |
Publisher | Wiley Open Access |
Peer Reviewed | Peer Reviewed |
Volume | 42 |
Issue | 8 |
Pages | 1436-1445 |
DOI | https://doi.org/10.1111/ecog.04469 |
Related Public URLs | https://www.biorxiv.org/content/10.1101/503847v2 |
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Copyright Statement
This is the accepted version of the following article: Drury, Jonathan, Barnes, Morgan, Finneran, Anne, Harris, Maddie & Grether, Gregory (2019). Continent-scale phenotype mapping using photographs from citizen scientists. Ecography 42(8): 1436-1445 which has been published in final form at https://doi.org/10.1111/ecog.04469. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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