There are two broad mechanisms by which plant populations persist under recurrent disturbances: resprouting from surviving tissues, and seedling recruitment. Species can have one of these mechanisms or both. However, a coherent framework explaining the differential evolutionary pressures driving these regeneration mechanisms is lacking. We propose a bottom-up approach in addressing this questio...

This study deals with the fire-adapted behaviour of three Australian fly species on freshly burnt areas in Western Australia. The smoke fly, Microsania australis Collart (Platypezidae), swarms in smoke plumes. Our field studies present new notes about the ecology of Microsania, especially with respect to its ecological niche. Additionally, Hypocerides nearcticus Borgmeier (Phoridae) aggregated ...

Understanding the dynamics of wildfire regimes is crucial for both regional forest management and predicting global interactions between fire regimes and climate. Accordingly, spatially explicit modeling of forest fire ecosystems is a very active field of research, including both generic and highly specific models. There is, however, a second field in which wildfire has served as a metaphor for...

Solving sequential decision making problems in computational sustainability often requires simulators of ecology, weather, fire, or other complex phenomena. The extreme computational expense of these simulators stymie optimization and interactive visualization of decision rules (policies). This work presents our results in creating an interactive visualization for a wildfire management problem ...

We summarize the fi ndings from 10 subsequent chapters that collectively review fi re and avian ecology across 40 North American ecosystems. We highlight patterns and future research topics that recur among the chapters. Vegetation types with long fi re-return intervals, such as boreal forests of Canada, forests at high elevations, and those in the humid Pacifi c Northwest, have experienced the...

Objective 2: Improve, maintain or enhance habitat diversity by managing naturally ignited wildfire. a. Complete vegetation mapping of the Buckland Valley Wildlife Habitat Area (WHA), that was initiated during Fiscal Year (FY) 82, by end of FY84. Rationale: At this time, the land cover on that portion of the WHA west of the Tagagawik River has been mapped from 1:60,000 scale color IR photos and ...

Amethodology has been developed for defining the various threshold conditions required for the opening of serotinous cones and viable seed release in the overstorey canopies in jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta var. latifolia) forests on the basis of fireline intensity and, in turn, rate of fire spread and fuel consumption. The extent of the effects to the overstore...

Research and development conducted within the Forest Fire Cluster of the German Research Network on Natural Disasters is built on a number of separately evolved concepts that were integrated in a cooperative research project. The Forest Fire Cluster has the responsibility of three major components. The first component consists of an innovative conceptual model for a fire information system and ...

Savanna ecosystems are semi-arid and fire-prone. Increasing temperatures and decreasing precipitation in Southern Africa will probably have a series of strong impacts on the various components of fire regimes in these ecosystems that will, in turn, affect their ecology, structure, and function. This paper presents a geospatial analysis to quantify changes in fire frequency, seasonality and spat...

Fire is an integral part of savanna ecology and changes in fire patterns are linked to biodiversity loss in savannas worldwide. In Australia, changed fire regimes are implicated in the contemporary declines of small mammals, riparian species, obligate-seeding plants and grass seed-eating birds. Translating this knowledge into management to recover threatened species has proved elusive. We repor...