Rights:
© 2008 American Physical Society (APS). This is the accepted version of the following article: Peltomäki, Matti & Rost, Martin & Alava, Mikko J. 2008. Oscillations and patterns in interacting populations of two species. Physical Review E. Volume 78, Issue 5. 050903/1-4. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.78.050903, which has been published in final form at http://journals.aps.org/pre/abstract/10.1103/PhysRevE.78.050903.