Cargando...
Fecha
2016-04-21
Derechos de acceso
info:eu-repo/semantics/openAccess
Título de la revista
ISSN de la revista
Título del volumen
Editorial
Elsevier
Citas
Resumen
Fluctuations in population size are in many cases undesirable, as they can induce outbreaks and extinctions or impede the optimal management of populations. We propose the strategy of adaptive threshold harvesting (ATH) to control fluctuations in population size. In this strategy, the population is harvested whenever population size has grown beyond a certain proportion in comparison to the previous generation. Taking such population increases into account, ATH intervenes also at smaller population sizes than the strategy of threshold harvesting. Moreover, ATH is the harvesting version of adaptive limiter control (ALC) that has recently been shown to stabilize population oscillations in both experiments and theoretical studies. We find that ATH has similar stabilization properties as ALC and thus offers itself as a harvesting alternative for the control of pests, exploitation of biological resources, or when restocking interventions required from ALC are unfeasible. We present numerical simulations of ATH to illustrate its performance in the presence of noise, lattice effect, and Allee effect. In addition, we propose an adjustment to both ATH and ALC that restricts interventions when control seems unnecessary, i.e. when population size is too small or too large, respectively. This adjustment cancels prolonged transients.
Descripción
This is the Accepted Manuscript of an article published by Elsevier in "Journal of Theoretical Biology, Volume 395, 2016", available online: https://doi.org/10.1016/j.jtbi.2016.01.039
Este es el manuscrito aceptado de un artículo publicado por Elsevier en " Journal of Theoretical Biology, Volume 395, 2016", disponible en línea: https://doi.org/10.1016/j.jtbi.2016.01.039
Este es el manuscrito aceptado de un artículo publicado por Elsevier en " Journal of Theoretical Biology, Volume 395, 2016", disponible en línea: https://doi.org/10.1016/j.jtbi.2016.01.039
Categorías UNESCO
Palabras clave
population size fluctuations, stabilization, adaptive limiter con28 trol, transient cancellation, short-term yield
Citación
Juan Segura, Frank M. Hilker, Daniel Franco, Adaptive threshold harvesting and the suppression of transients, Journal of Theoretical Biology, Volume 395, 2016, Pages 103-114, ISSN 0022-5193, https://doi.org/10.1016/j.jtbi.2016.01.039
Centro
Facultad de Ciencias
Departamento
Matemática Aplicada I