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Abstract:

Wild boar (Sus scrofa) are of serious concern in numerous conservation areas such as El Palmar National Park, Argentina, where their increasing abundance affected the iconic palm tree Butia yatay. We assessed the effectiveness of an innovative management control program on wild boar population dynamics and ground rooting area over 10 years. Park personnel recruited and supervised local recreational hunters who regularly conducted controlled still shooting from widely distributed watchtowers and used trained dogs mainly during the first 2 years post-intervention (YPI). We used the detailed records of harvest and hunting effort to estimate time- and stage-specific catch-per-unit-effort (CPUE) indices and stochastic population growth rates (μ). Catch was linearly related to hunting effort except at large effort levels. CPUE indices declined exponentially at 5–7 % month−1 over 0–1 YPI and thereafter stabilized with μ indistinguishable from 0. Relative to baseline levels, culling reduced annual pregnancy rates, the fraction of juveniles and older adults, and ground rooting area below target values (<1.3 %). Incipient population recovery followed one of two periods of marginal hunting effort. The program generated few undesirable collateral effects mainly related to dog-hunting. Mesopredator abundance (foxes) steadily increased following a large outbreak of canine distemper at baseline. The combined use of standardized CPUE indices, body-length data and simple population viability analysis models provided reliable metrics for wild boar trend analysis and management. Unlike a preceding plan, a highly structured multi-stakeholder program proved to be sustainable and brought wild boar abundance to a low-density, unstable equilibrium causing minimal damage. © 2016, Springer International Publishing Switzerland.

Registro:

Documento: Artículo
Título:Coping with wild boar in a conservation area: impacts of a 10-year management control program in north-eastern Argentina
Autor:Gürtler, R.E.; Martín Izquierdo, V.; Gil, G.; Cavicchia, M.; Maranta, A.
Filiación:Laboratory of Eco-Epidemiology, Department of Ecology, Genetics and Evolution, Universidad de Buenos Aires-IEGEBA (CONICET-UBA), Ciudad Universitaria, Buenos Aires, 1428, Argentina
Parque Nacional Los Alerces, Administración de Parques Nacionales, Primeros Pobladores S/N, Villa Futalaufquen, Chubut 9200, Argentina
Delegación Regional del Noreste Argentino, Administración de Parques Nacionales, Av. Tres Fronteras 183, Puerto Iguazú, Misiones 3370, Argentina
Parque Nacional El Palmar, Administración de Parques Nacionales, Ruta Nac. 14, km 19, Ubajay, Entre Ríos 3287, Argentina
Palabras clave:Conservation areas; Population dynamics; Sustainability; Ungulates; Wild boar; Wildlife management; abundance; biological invasion; conservation management; ecological impact; ecosystem management; hunting; invasive species; population growth; population viability analysis; protected area; stakeholder; sustainability; tree; ungulate; wildlife management; Argentina; El Palmar National Park; Entre Rios; Butia yatay; Canidae; Canis familiaris; Sus scrofa; Ungulata
Año:2017
Volumen:19
Número:1
Página de inicio:11
Página de fin:24
DOI: http://dx.doi.org/10.1007/s10530-016-1256-5
Título revista:Biological Invasions
Título revista abreviado:Biol. Invasions
ISSN:13873547
CODEN:BLINF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13873547_v19_n1_p11_Gurtler

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Citas:

---------- APA ----------
Gürtler, R.E., Martín Izquierdo, V., Gil, G., Cavicchia, M. & Maranta, A. (2017) . Coping with wild boar in a conservation area: impacts of a 10-year management control program in north-eastern Argentina. Biological Invasions, 19(1), 11-24.
http://dx.doi.org/10.1007/s10530-016-1256-5
---------- CHICAGO ----------
Gürtler, R.E., Martín Izquierdo, V., Gil, G., Cavicchia, M., Maranta, A. "Coping with wild boar in a conservation area: impacts of a 10-year management control program in north-eastern Argentina" . Biological Invasions 19, no. 1 (2017) : 11-24.
http://dx.doi.org/10.1007/s10530-016-1256-5
---------- MLA ----------
Gürtler, R.E., Martín Izquierdo, V., Gil, G., Cavicchia, M., Maranta, A. "Coping with wild boar in a conservation area: impacts of a 10-year management control program in north-eastern Argentina" . Biological Invasions, vol. 19, no. 1, 2017, pp. 11-24.
http://dx.doi.org/10.1007/s10530-016-1256-5
---------- VANCOUVER ----------
Gürtler, R.E., Martín Izquierdo, V., Gil, G., Cavicchia, M., Maranta, A. Coping with wild boar in a conservation area: impacts of a 10-year management control program in north-eastern Argentina. Biol. Invasions. 2017;19(1):11-24.
http://dx.doi.org/10.1007/s10530-016-1256-5