TY - JOUR

T1 - El efecto liberador de competidores aplicado a las especies de carnívoros

T2 - Cómo puede aumentar el número de zorros cuando son perseguidos

AU - Lozano, J.

AU - Casanovas, J. G.

AU - Virgós, E.

AU - Zorrilla, J. M.

PY - 2013/6/1

Y1 - 2013/6/1

N2 - The objective of our study was to numerically simulate the population dynamics of a hypothetical community of three species of small to medium-sized carnivores subjected to non-selective control within the context of the competitor release effect (CRE). We applied the CRE to three carnivore species, linking interspecific competition with predator control efforts. We predicted the population response of European badger, the red fox and the pine marten to this wildlife management tool by means of numerical simulations. The theoretical responses differed depending on the intrinsic rate of growth (r), although modulated by the competition coefficients. The red fox, showing the highest r value, can increase its populations despite predator control efforts if control intensity is moderate. Populations of the other two species, however, decreased with control efforts, even reaching extinction. Three additional theoretical predictions were obtained. The conclusions from the simulations were: 1) predator control can play a role in altering the carnivore communities; 2) red fox numbers can increase due to control; and 3) predator control programs should evaluate the potential of unintended effects on ecosystems.

AB - The objective of our study was to numerically simulate the population dynamics of a hypothetical community of three species of small to medium-sized carnivores subjected to non-selective control within the context of the competitor release effect (CRE). We applied the CRE to three carnivore species, linking interspecific competition with predator control efforts. We predicted the population response of European badger, the red fox and the pine marten to this wildlife management tool by means of numerical simulations. The theoretical responses differed depending on the intrinsic rate of growth (r), although modulated by the competition coefficients. The red fox, showing the highest r value, can increase its populations despite predator control efforts if control intensity is moderate. Populations of the other two species, however, decreased with control efforts, even reaching extinction. Three additional theoretical predictions were obtained. The conclusions from the simulations were: 1) predator control can play a role in altering the carnivore communities; 2) red fox numbers can increase due to control; and 3) predator control programs should evaluate the potential of unintended effects on ecosystems.

KW - Competition

KW - Generalist predator

KW - Population dynamics

KW - Population growth

KW - Predator control

KW - Wildlife management

KW - Biology

KW - predator control

KW - wildlife management

KW - competition

KW - generalist predator

KW - population dynamics

KW - Population growth

UR - http://www.scopus.com/inward/record.url?scp=84880792378&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/793b752d-ec0d-3c36-8204-6b2f481c09e8/

U2 - 10.32800/abc.2013.36.0037

DO - 10.32800/abc.2013.36.0037

M3 - Zeitschriftenaufsätze

AN - SCOPUS:84880792378

VL - 36

SP - 37

EP - 46

JO - Animal Biodiversity and Conservation

JF - Animal Biodiversity and Conservation

SN - 1578-665X

IS - 1

ER -