Spatial modeling of riparian state dynamics in eastern Oregon, USA by using discrete event simulation

Simulating riparian vegetation and aquatic habitat dynamics in response to natural and anthropogenic disturbance regimes in the Upper Grande Ronde River, Oregon, USA

“…The approach, however, provides the building blocks for constructing such a dynamic landscape and network model. Fonnesbeck (2007) demonstrated a possible approach to building a dynamic network model, but his results were dramatically different than ours, most likely because of problems in translating non-spatially explicit disturbance probabilities into spatially explicit disturbance events. For example, in Fonnesbeck's model, most of the landscape is in old, multistrata forest under the historic disturbance regime (Fonnesbeck, 2007; Fig.…”

Multistate modeling of habitat dynamics: factors affecting Florida scrub transition probabilities

“…Without mechanical cutting, habitat quality projections into the next 15 years predicted that most potential territories were likely to remain in states where Florida Scrub-Jay mortality exceeded recruitment (short, tall mixed, tall; Carter 2003, Breininger andOddy 2004), which is a serious concern for the small, isolated populations that comprise most of the species' range (Stith et al 1996, 2006. Long-term data on Florida Scrub-Jay populations suggest that populations will not persist on lands managed by infrequent fire if the habitat is already in a degraded state (Breininger and Carter 2003).…”

“…In some cases, values for transition probabilities Manuscript have been based on expert opinion (Fonnesbeck 2006). In some cases, values for transition probabilities Manuscript have been based on expert opinion (Fonnesbeck 2006).…”

Landscape analysis: Projecting the effects of management and natural disturbances on forest and watershed resources of the Blue Mountains, Oregon, USA

“…For example, the aquatic and riparian modules (Wondzell et al, 2007;Fonnesbeck, 2007) used a network (linear) rather than a landscape (planar) approach, making direct linkages with the vegetation models of Hemstrom et al (2007) difficult. Other modules provided supporting information and context, including estimates of snag abundance (Bate et al, 2007) and regional projections of human development in forest and rangelands (Kline et al, 2007).…”

“…Thus, Wondzell et al (2007) developed a suite of aquatic-riparian state and transition models linked to an expert systems model for assessing salmon habitat quality. Fonnesbeck (2007) demonstrated how the reach-scale models developed by Wondzell et al could be linked together into a dynamic network model using discrete event simulation. Although not currently joined with the whole watershed vegetation state and transition models of Hemstrom et al (2007), these riparian and stream models provide the foundation for such developments.…”