RT Journal Article
T1 Lifetime and reproduction of a marked individual in a two-species competition process
A1 Gómez-Corral, Antonio
A1 López-García, M.
AB The interest is in a stochastic model for the competition of two species, which was first introduced by Reuter [18] and Iglehart [11], and then analyzed by Ridler-Rowe [19]. The model is related to the two-species autonomous competitive model (Zeeman [24]), where individuals compete either directly or indirectly for a limited food supply and, consequently, birth and death rates depend on the population size of one or both of the species. The aim is to complement the treatment of the model we started in [8,9] by focusing here on probabilistic descriptors that are inherently linked to an individual: its residual lifetime and the number of direct descendants. We present an approximating model based on the maximum size distribution, and we discuss on various models defined in terms of the underlying killing and reproductive strategies. Numerical examples are presented to show the effects of the killing and reproductive strategies on the behavior of an individual, and how the impact of these strategies on the descriptors vanishes in highly competitive ecosystems.
PB Elsevier
SN 0096-3003
YR 2015
FD 2015-08
LK https://hdl.handle.net/20.500.14352/24026
UL https://hdl.handle.net/20.500.14352/24026
LA eng
DS Docta Complutense
RD 8 abr 2025