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dc.contributor.author
Gorleri, Fabricio Carlos
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dc.contributor.author
Areta, Juan Ignacio
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dc.date.available
2022-10-17T19:18:36Z
dc.date.issued
2022-01
dc.identifier.citation
Gorleri, Fabricio Carlos; Areta, Juan Ignacio; Misidentifications in citizen science bias the phenological estimates of two hard-to-identify Elaenia flycatchers; Wiley Blackwell Publishing, Inc; Ibis; 164; 1; 1-2022; 13-26
dc.identifier.issn
0019-1019
dc.identifier.uri
http://hdl.handle.net/11336/173617
dc.description.abstract
Citizen science initiatives contain a large volume of observations that can be useful to address ecological questions for a wide array of organisms. However, one limitation of citizen science data is the potential for species misidentification. Although recent studies have shown that citizen science data are relatively accurate for many taxa, the effect of misidentification errors in hard-to-identify species remains poorly explored. If misidentification events occur at large scales, ecological estimates can be compromised. Here, we show that misidentifications contained in citizen science databases biased phenological estimates in a pair of migratory and partially overlapping Neotropical flycatchers: the Chilean Elaenia Elaenia chilensis and the Small-billed Elaenia Elaenia parvirostris. We reviewed and re-classified 4399 photos of these species from Argentina, Chile and Uruguay. We found that overall identification accuracy was high (c. 90%) for both species when they were allopatric, but dramatically low for Small-billed Elaenia during autumn migration (from 28.6% to 84.6%) because migrating individuals of Chilean Elaenia were systematically reported as Small-billed. The phenological estimates for both Elaenias were biased due to the large number of misidentifications concentrated towards the autumn migration period. These errors caused a 1-week advancement in the estimated arrival, and a 2-week delay in the estimated departure for Small-billed Elaenia. For Chilean Elaenia, errors caused a 1-week delay for the estimated spring peak passage and underestimation of the magnitude of the autumn passage. Our results highlight the importance of performing critical assessments of records when using citizen science databases to describe ecological patterns in species that are hard to identify. The large volume of information provided by citizen science initiatives is useful to describe spatio-temporal patterns in birds, particularly in those of poorly known regions. However, to further enhance the usefulness of such databases, it is imperative actively to post-process and contrast patterns derived from documented (and undocumented) records, with a special focus on misidentifications. This will only be possible through a thorough review of the documented data, together with an intimate understanding of the natural history of the study species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARGENTINA
dc.subject
CHILEAN ELAENIA
dc.subject
CRYPTIC SPECIES
dc.subject
EBIRD
dc.subject
ECOREGISTROS
dc.subject
IDENTIFICATION ACCURACY
dc.subject
PHENOLOGY
dc.subject
SMALL-BILLED ELAENIA
dc.subject
TYRANNIDAE
dc.subject
URUGUAY
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Misidentifications in citizen science bias the phenological estimates of two hard-to-identify Elaenia flycatchers
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-20T11:06:58Z
dc.journal.volume
164
dc.journal.number
1
dc.journal.pagination
13-26
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Gorleri, Fabricio Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina
dc.description.fil
Fil: Areta, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina
dc.journal.title
Ibis
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/ibi.12985
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/ibi.12985
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