Learning predator promotes coexistence of prey species in host-parasitoid systems

Learning predator promotes coexistence of prey species in host-parasitoid systems.

Ecological theory suggests that frequency-dependent predation, in which more common prey types are disproportionately favored, promotes the coexistence of competing prey species. However, many of the earlier empirical studies that investigated the effect of frequency-dependent predation were short-term and ignored predator-prey dynamics and system persistence. Therefore, we used long-term obser...

Chemicals in Host-Parasitoid and Prey-Predator Relations

Trait adaptation promotes species coexistence in diverse predator and prey communities

Species can adjust their traits in response to selection which may strongly influence species coexistence. Nevertheless, current theory mainly assumes distinct and time-invariant trait values. We examined the combined effects of the range and the speed of trait adaptation on species coexistence using an innovative multispecies predator-prey model. It allows for temporal trait changes of all pre...

Evolution in predator-prey systems

We study the adaptive dynamics of predator prey systems modeled by a dynamical system in which the characteristics are allowed to evolve by small mutations. When only the prey are allowed to evolve, and the size of the mutational change tends to 0, the system does not exhibit prey coexistence and the parameters of the resident prey type converges to the solution of an ODE. When only the predato...

A Generalist Protist Predator Enables Coexistence in Multitrophic Predator-Prey Systems Containing a Phage and the Bacterial Predator Bdellovibrio

Citation: Johnke J, Baron M, de Leeuw M, Kushmaro A, Jurkevitch E, Harms H and Chatzinotas A (2017) A Generalist Protist Predator Enables Coexistence in Multitrophic Predator-Prey Systems Containing a Phage and the Bacterial Predator Bdellovibrio. Front. Ecol. Evol. 5:124. doi: 10.3389/fevo.2017.00124 A Generalist Protist Predator Enables Coexistence in Multitrophic Predator-Prey Systems Contai...