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dc.contributor.authorAbrahams, Carlos
dc.contributor.authorGeary, Matthew
dc.date.accessioned2020-01-23T08:43:29Z
dc.date.available2020-01-23T08:43:29Z
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/623111/AbrahamsGeary_Bioacoustics_2020-01-08%20REVISED.pdf?sequence=3
dc.identifier.citationAbrahams, C. & Geary, M. (2020). Combining bioacoustics and occupancy modelling for improved monitoring of rare breeding bird populations. Ecological Informatics, 112, 106131.en_US
dc.identifier.issn1574-9541
dc.identifier.doi10.1016/j.ecolind.2020.106131
dc.identifier.urihttp://hdl.handle.net/10034/623111
dc.description.abstractEffective monitoring of rare and declining species is critical to enable their conservation, but can often be difficult due to detectability or survey constraints. However, developments in acoustic recorders are enabling an important new approach for improved monitoring that is especially applicable for long-term studies, and for use in difficult environments or with cryptic species. Bioacoustic data may be effectively analysed within an occupancy modelling framework, as presence/absence can be determined, and repeated survey events can be accommodated. Hence, both occupancy and detectability estimates can be produced from large, coherent datasets. However, the most effective methods for the practical detection and identification of call data are still far from established. We assessed a novel combination of automated clustering and manual verification to detect and identify heathland bird vocalizations, covering a period of six days at 44 sampling locations Occupancy (Ψ) and detectability (p ) were modelled for each species, and the best fit models provided values of: nightjar Ψ=0.684, p=0.740, Dartford warbler Ψ=0.449 p=0.196 and woodlark Ψ=0.13 p=0.996. Including environmental covariates within the occupancy models indicated that tree, wetland and heather cover were important variables, particularly influencing detectability. The protocol used here allowed robust and consistent survey data to be gathered, with limited fieldwork resourcing, allowing population estimates to be generated for the target bird species. The combination of bioacoustics and occupancy modelling can provide a valuable new monitoring approach, allowing population trends to be identified, and the effects of environmental change and site management to be assessed.en_US
dc.publisherElsevieren_US
dc.relation.urlhttps://www.journals.elsevier.com/ecological-informatics/en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectConservationen_US
dc.subjectEcologyen_US
dc.subjectBioacousticen_US
dc.subjectSurveyen_US
dc.titleCombining bioacoustics and occupancy modelling for improved monitoring of rare breeding bird populationsen_US
dc.typeArticleen_US
dc.identifier.eissn1878-0512en_US
dc.contributor.departmentBaker Consultants Ltd; Nottingham Trent University; University of Chesteren_US
dc.identifier.journalEcological Informaticsen_US
or.grant.openaccessYesen_US
rioxxterms.funderUnfundeden_US
rioxxterms.identifier.projectunfundeden_US
rioxxterms.versionAMen_US
rioxxterms.versionofrecordhttps://doi.org/10.1016/j.ecolind.2020.106131
rioxxterms.licenseref.startdate2021-02-05
rioxxterms.publicationdate2020-02-05
dc.dateAccepted2020-01-22
dc.date.deposited2020-01-23en_US
dc.indentifier.issn1574-9541en_US


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