TITLE

Small Heterogeneity Has Large Effects on Synchronization of Ecological Oscillators

AUTHOR(S)
Goldwyn, Eli E.; Hastings, Alan
PUB. DATE
January 2009
SOURCE
Bulletin of Mathematical Biology;Jan2009, Vol. 71 Issue 1, p130
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Heterogeneity in habitat plays a crucial role in the dynamics of spatially extended populations and is often ignored by both empiricists and theoreticians. A common assumption made is that spatially homogeneous systems and those with slight heterogeneity will behave similarly and, therefore, the results and data from studies of the former can be applied to the latter. Here, we test this assumption by deriving a phase model from two weakly coupled predator-prey oscillators and analyze the effect of spatial heterogeneity on the phase dynamics of this system. We find that even small heterogeneity between the two patches causes substantial changes in the phase dynamics of the system which can have dramatic effects on both population dynamics and persistence. Additionally, if the prey and predator time scales are similar, the effect of heterogeneity is much greater.
ACCESSION #
36572754

 

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics