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dc.contributor.author
Gurtler, Ricardo Esteban
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dc.contributor.author
Cohen, J. E.
dc.date.available
2023-09-29T11:10:51Z
dc.date.issued
2022-03
dc.identifier.citation
Gurtler, Ricardo Esteban; Cohen, J. E.; Invasive axis deer and wild boar in a protected area in Argentina, controlled hunting, and Taylor's law; Csiro Publishing; Wildlife Research; 49; 2; 3-2022; 111-128
dc.identifier.issn
1035-3712
dc.identifier.uri
http://hdl.handle.net/11336/213540
dc.description.abstract
Context: Spatial and temporal variability in population density tends to increase with an increasing mean density, as widely documented by Taylor's law (TL) of fluctuation scaling. A management program based on local hunters has been used to control invasive wild boar and axis deer in a protected area of north-eastern Argentina since 2006. Aim: We determine the effects of species (boar or deer), hunting shift (diurnal, overnight), human disturbance (by comparing one section open for public use, one not) and time scale (one-versus three-month periods) on the values of the parameters of TL, and consider both its spatial and temporal forms. Methods: Park management collected data on the hunting efforts and harvest of 6104 hunting parties shooting from elevated blinds from 2006 to 2015. The log-transformed sample means and variances of four indices of relative abundance were computed for each period and blind, and analysed through least-squars linear regression and ANCOVA. Key results: Axis deer satisfied the spatial TL by all four indices, but wild boar had a significantly non-linear relationship for crude catch per unit effort (CP-UE) only. In the spatial TL, the slope b did not deviate significantly from 1 when using crude or standardised catch per hunting-party session or standardised CPUE, but b was substantially >1 for crude CPUE in both species (range, 1.307-1.434). Human disturbance, hunting shift, and time scale did not significantly modify the parameters of the spatial TL, except in two cases. All metrics at identified blinds over consecutive trimesters confirmed the temporal TL. Wild boar crude catch was 43% greater in the restricted zone of greater conservation value, whereas axis deer catch was 60% greater in the public-use zone. Conclusions: With rare exceptions, TL describes well the mean and variance of four metrics of abundance of wild boar and axis deer under sustained hunting pressure. This paper may be the first to demonstrate the connection of TL with any aspect of vertebrate pest control. Implications: TL identifies key zones with a high mean and high variance of ungulate density for targeted control, and can be used to attain fixed-precision estimates of abundance through sequential sampling.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Csiro Publishing
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ABUNDANCE
dc.subject
INVASIVE EXOTIC SPECIES
dc.subject
POPULATION DYNAMICS
dc.subject
TAYLOR'S LAW
dc.subject
UNGULATES
dc.subject
WILDLIFE MANAGEMENT
dc.subject.classification
Ecología
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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
Invasive axis deer and wild boar in a protected area in Argentina, controlled hunting, and Taylor's law
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-07T22:24:37Z
dc.journal.volume
49
dc.journal.number
2
dc.journal.pagination
111-128
dc.journal.pais
Australia
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dc.journal.ciudad
Collingwood
dc.description.fil
Fil: Gurtler, Ricardo Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.description.fil
Fil: Cohen, J. E.. The Rockefeller University; Estados Unidos
dc.journal.title
Wildlife Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1071/WR20119
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/wr/Fulltext/WR20119
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