Phase transition and selection in a four-species cyclic Lotka-Volterra model

Details Phase transition and selection in a four-species cyclic Lotka-Volterra model Phase transition and selection in a four-species cyclic Lotka-Volterra model

2003-10-15

arxiv.org/abs/q-bio/0310017v1

Phys. Rev. E 69 (2004) 031911

Biology

Quantitative Biology

Populations and Evolution

4 pages, 5 figures

Scientific paper

10.1103/PhysRevE.69.031911

We study a four species ecological system with cyclic dominance whose individuals are distributed on a square lattice. Randomly chosen individuals migrate to one of the neighboring sites if it is empty or invade this site if occupied by their prey. The cyclic dominance maintains the coexistence of all the four species if the concentration of vacant sites is lower than a threshold value. Above the treshold, a symmetry breaking ordering occurs via growing domains containing only two neutral species inside. These two neutral species can protect each other from the external invaders (predators) and extend their common territory. According to our Monte Carlo simulations the observed phase transition is equivalent to those found in spreading models with two equivalent absorbing states although the present model has continuous sets of absorbing states with different portions of the two neutral species. The selection mechanism yielding symmetric phases is related to the domain growth process whith wide boundaries where the four species coexist.

Affiliated with

Also associated with

No associations

Rating

Phase transition and selection in a four-species cyclic Lotka-Volterra model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Phase transition and selection in a four-species cyclic Lotka-Volterra model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase transition and selection in a four-species cyclic Lotka-Volterra model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-527778