383To our knowledge, the approach used by Frid et al. (2013b) using an STSM to
simulate resource allocation to detection as well as treatment has not yet been
applied to Bromus. Future work on Bromus species using this modeling approach
could consider questions around resource allocation in space. For example, the
model could consider trade-offs between monitoring and prioritizing treatment of
more remote (and thus costly) areas versus accessible areas that require fewer
resources to treat. In addition, the trade-off between monitoring and treatment could
be explored further on a landscape and species-specific basis to determine which
Fig. 13.3 Maps of the Santa Catalina Mountain Study area showing (a) mapped P. ciliare in 2010
and simulated P. ciliare invasion at year 2060 for five simulation scenarios: (b) no management,
(c) intermediate management best case, (d) intermediate management worst case, (e) unlimited
management best case, and (f) unlimited management worst case (From Frid et al. 2013b)
13 State-and-Transition Models: Conceptual Versus Simulation Perspectives...