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Fire Ecology
Volume 9 Issue 1, 2013
DOI: 10.4996/fireecology.0901
About the Cover:
A prescribed fire that was set for vegetation management in the Arthur R. Marshall Loxahatchee National Wildlife Refuge (northern Everglades), Florida, USA. Dense vegetation, such as Phragmites australis (Cav.) Trin. ex Steud. and Cladium jamaicense (Pers.), provides ample fuel for fire throughout the year. This fire occurred with over 50 cm of standing water on the landscape.
Photo credit: Todd Z. Osborne.
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Upcoming AFE Events
We are currently planning our next 3 conferences.
Wildland Fire in the Appalachians: Discussions Among Managers and Scientists.
Roanoake, Virginia.
Oct. 8-10, 2013.
Call for Posters now Open. Registration opens May 1.
Co-Sponsored by Consortium of Appalachian Fire Managers and Scientists (CAFMS)
www.appfireconference.org
Large Wildland Fires: Social, Political & Ecological Consequences.
Missoula, Montana
May 19-23, 2014.
In collaboration with IAWF.
www.largefireconference.org
6th International Fire Ecology and Management Congress.
San Antonio, Texas, USA. 2015.
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In this Issue
Fire Ecology Issue 9(1), April 2013, now up on the Web, is a special issue devoted to fire and wetlands. The issue developed from a series of invited talks at a "Fire in Wetlands" session during the 9th International Association for Ecology (INTECOL) meeting in Orlando, Florida, 2012. The collection of research in this issue is a product of that symposium. Osborne et al. introduce the issue with a summary of the importance of fire in wetlands, with reference to each of the papers contained in the issue.
Liao et al. demonstrate a pronounced stimulation of microbial enzymes and available soil nitrogen levels following a prescribed burn in the phosphorus limited southern Everglades of Florida, USA. In the same ecosystem, Medvedeff et al. further demonstrate how fire both stimulated and suppressed carbon related enzymes, leading to variable responses in production of greenhouse gases (CO2 and CH4). Much of these differences are attributed to the type and abundance of combustion residues (ash or char) which may act as both source of nutrients (N and P) or carbon. Ruiz et al. describe how fire in combination with hydrology can instigate a negative effect on tree islands causing contraction in their spatial extent, or in extreme cases, loss of this sensitive community from the Everglades landscape. Conversely, Gagnon et al. report on the positive effects of fire on persistence and resilience of Arundinaria gigantea, a bamboo native to the southeastern United States, following combined windstorm and fire disturbances.
Smith et al. report on several sites in the coastal Everglades where fire is a significant driver in the expansion of mangroves into herbaceous marsh areas, especially those dominated by dense emergent macrophytes. Venne and Frederick report that wading birds are likely attracted to recently burned marsh areas due to more efficient feeding after the removal of dense vegetation. Gorman et al. argue that the reticulated flatwoods salamander (Ambystoma bishopi) relies on fire to remove mid canopy vegetation and promote dense groundcover habitat necessary for reproduction. Duever and Roberts present a conceptual ecological succession model synthesizing decades of investigation of the effects of hydrology and fire on south Florida vegetation communities. These types of succession models are useful and often requested tools for regional managers, as they enable predictions of vegetation succession under various managed disturbance regimes. Watts and Kobziar argue that while both societal and ecological impacts of smoldering fires in wetlands are often viewed negatively (smoke hazards, carbon release, direct vegetation mortality), such fires may in fact increase the water storage capacity of smaller wetlands. Finally, Jones et al. report on a method of using Landsat imagery to both document burn scars on the landscape and to determine post burn recovery.
The special issue is intended to open a forum among scientists working in the realm of fire and wetlands. We see this effort as a catalyst for researchers to identify research needs and direct studies to help understand the complex interactions of ecosystem development and function in systems where fire and water intersect.
~ Jim Agee, Fire Ecology Editor
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Fire and Water: New Perspectives on Fire's Role In Shaping Wetland Ecosystems
Pages: 1-5 DOI: 10.4996/fireecology.0901001
This special issue of Fire Ecology is dedicated to furthering scientific understanding of the role fire plays in the development and functioning of wetland ecosystems. Read Complete Abstract View Article PDF
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Fire Effects on Nitrogen Cycling in Native and Restored Calcareous Wetlands
Pages: 6-20
DOI: 10.4996/fireecology.0901006
Fire is an important natural process and management tool in the Florida Everglades, but few studies have examined its effects on nutrients; nitrogen (N) in particular has received little attention across the whole Everglades system. Read Complete Abstract View Article PDF
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Impacts of Fire on Microbial Carbon Cycling in Subtropical Wetlands
Pages: 21-37
DOI: 10.4996/fireecology.0901021
Fire is a major determinant of the global carbon (C) balance. While it is known that C is lost through organic matter combustion, the effect fire has on soil C biogeochemistry is unclear. Studies investigating the role of fire on C greenhouse gas production (CO2 and CH4) have been conducted in forested and grassland ecosystems, yet research in wetlands has been limited. Read Complete Abstract View Article PDF
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Tree Island Response to Fire and Flooding in the Short-Hydroperiod Marl Prairie Grasslands of the Florida Everglades, USA
Pages: 38-54 DOI: 10.4996/fireecology.0901038
Within the marl prairie grasslands of the Florida Everglades, USA, the combined effects of fire and flooding usually lead to very significant changes in tree island structure and composition. Depending on fire severity and post-fire hydroperiod, these effects vary spatially and temporally throughout the landscape, creating a patchy post-fire mosaic of tree islands with different successional states. Read Complete Abstract View Article PDF
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Multi-Year Salutary Effects of Windstorm and Fire on River Cane
Pages: 55-65 DOI: 10.4996/fireecology.0901055
Canebrakes are monodominant stands of cane (Arundinaria gigantea [Walter] Muhl .), a bamboo native to and once prominent in the southeastern USA. Canebrakes were important wildlife habitat within the bottomland hardwood forest ecosystem. They have been reduced in areal coverage by an estimated 98% since European settlement due to land conversion and the drastic alteration of disturbance regimes in their floodplain habitat. Read Complete Abstract View Article PDF
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Dynamics of Mangrove-Marsh Ecotones in Subtropical Coastal Wetlands: Fire, Sea-Level Rise, and Water Levels
Pages: 66-77 DOI: 10.4996/fireecology.0901066
Ecotones are areas of sharp environmental gradients between two or more homogeneous vegetation types. They are a dynamic aspect of all landscapes and are also responsive to climate change. Shifts in the position of an ecotone across a landscape can be an indication of a changing environment. In the coastal Everglades of Florida, USA, a dominant ecotone type is that of mangrove forest and marsh. Read Complete Abstract View Article PDF
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Foraging Wading Bird (Ciconiiformes) Attraction to Prescribed Burns in an Oligotrophic Wetland
Pages: 78-95 DOI: 10.4996/fireecology.0901078
Many wetland communities are fire prone or fire dependent, especially those dominated by forbs and grasses. Despite our considerable knowledge about fire effects on wildlife in uplands, there is a relative paucity of information about effects of fire in wetland systems. Long-legged wading birds (herons, egrets, ibises, storks, spoonbills; order Ciconiiformes) may benefit from fire through the exposure of prey after vegetation removal, or through a trophic response of prey to increased availability of nutrients and increased light. Read Complete Abstract View Article PDF
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Evaluating Methods to Restore Amphibian Habitat in Fire-Suppressed Pine Flatwoods Wetlands
Authors: Thomas A. Gorman, Carola A. Haas, and John G. Himes
Pages: 96-109 DOI: 10.4996/fireecology.0901096
Although fire is recognized as an important disturbance in longleaf pine uplands of the southeastern US, less is known about the importance of fire or other disturbances in the wetlands embedded within this ecosystem. The reticulated flatwoods salamander (Ambystoma bishopi ), a federally endangered species, and other rare and declining amphibians, are less likely to breed in low-quality wetlands with high canopy cover and low herbaceous groundcover that typically occur from fire exclusion. Read Complete Abstract View Article PDF
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Successional and Transitional Models of Natural South Florida, USA, Plant Communities
Pages: 110-123 DOI: 10.4996/fireecology.0901110
We developed a conceptual successional model for South Florida that describes relationships among major natural plant communities in terms of the region's two major environmental processes, hydrology and fire regime. Read Complete Abstract View Article PDF
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Smoldering Combustion and Ground Fires: Ecological Effects and Multi-Scale Significance
Pages: 124-132 DOI: 10.4996/fireecology.0901124
Although fires in wetlands would seem to be rare or impossible by definition, these ecosystems do occasionally experience fire. A common feature of fires in wetlands is smoldering combustion in organic soils, such as peat and muck. Read Complete Abstract View Article PDF
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Wetland Fire Scar Monitoring and Analysis Using Archival Landsat Data for the Everglades
Pages: 133-150 DOI: 10.4996/fireecology.0901133
The ability to document the frequency, extent, and severity of fires in wetlands, as well as the dynamics of post-fire wetland land cover, informs fire and wetland science, resource management, and ecosystem protection. Read Complete Abstract View Article PDF
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