Meta-analysis of the effectiveness of marked wire in reducing avian collisions with power lines

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dc.contributor.authorAlonso, Juan Carlos
dc.contributor.authorPonce, Carlos
dc.contributor.authorPalacín, Carlos
dc.contributor.authorBarrientos Yuste, Rafael
dc.date.accessioned2024-01-24T11:40:18Z
dc.date.available2024-01-24T11:40:18Z
dc.date.issued2011
dc.description.abstractCollisions of birds with power transmission and distribution lines have been documented for many species, and cause millions of casualties worldwide. Attempts to reduce mortality from such collisions include placing bird flight diverters (i.e., wire markers in the form of, e.g., spirals, swivels, plates, or spheres) on static and some electrified wires to increase their visibility. Although studies of the effectiveness of such devices have yielded contradictory results, the implementation of flight diverters is increasing rapidly. We reviewed the results of studies in which transmission or distribution wires were marked and conducted a meta-analysis to examine the effectiveness of flight diverters in reducing bird mortality. We included in our meta-analysis all studies in which researchers searched for carcasses of birds killed by a collision with wires. In those studies that also included data on flight frequency, we examined 8 covariates of effectiveness: source of data, study design, alternate design (if marked and unmarked spans were alternated in the same line), periodicity of searches for carcasses, width of the search transect, and number of species, lines, and stretches of wire searched. The presence of flight diverters was associated with a decrease in bird collisions. At unmarked lines, there were 0.21 deaths/1000 birds (n =339,830) that flew among lines or over lines. At marked lines, the mortality rate was 78% lower (n =1,060,746). Only the number of species studied had a significant influence on effect size; this was larger in studies that addressed more species. When comparing mortality at marked and unmarked lines, we recommend use of the same time intervals and habitats and standardizing the periodicity of carcass searches
dc.description.departmentDepto. de Biodiversidad, Ecología y Evolución
dc.description.facultyFac. de Ciencias Biológicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.doihttps://doi.org/10.1111/j.1523-1739.2011.01699.x
dc.identifier.issnhttps://doi.org/10.1111/j.1523-1739.2011.01699.x
dc.identifier.officialurlhttps://conbio.onlinelibrary.wiley.com/doi/full/10.1111/j.1523-1739.2011.01699.x
dc.identifier.urihttps://hdl.handle.net/20.500.14352/95060
dc.issue.number5
dc.journal.titleConservation Biology
dc.language.isoeng
dc.page.final903
dc.page.initial893
dc.publisherWiley
dc.rights.accessRightsrestricted access
dc.subject.cdu591.5
dc.subject.keywordbird collision, bird flight diverter, flight frequency, ground-wire marking, power line
dc.subject.ucmAves
dc.subject.unesco2408 Etología
dc.titleMeta-analysis of the effectiveness of marked wire in reducing avian collisions with power lines
dc.title.alternativeMeta Análisis sobre la Eficacia de la Senalización de los Cables para Reducir las Colisiones de Aves contra Tendidos Electricos
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number25
dspace.entity.typePublication
relation.isAuthorOfPublication598b089c-04cb-44fe-913e-e82316837c66
relation.isAuthorOfPublication.latestForDiscovery598b089c-04cb-44fe-913e-e82316837c66
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