Contrasting resource allocation patterns in Sedum lanceolatum Torr.: Biomass versus energy estimates

Biomass determinations and microbomb calorimetry were used to assess resource allocation in Sedum lanceolatum Torr. between 2,257 and 3,726 m above sea level in the Front Range of the Rocky Mountains, Colorado, USA. In general, energy values did not differ within a tissue among sites, but did differ among tissue types. Flowers and leaves had the greatest energy content per gram ashfree dry weight. Total kilojoules per plant were homogeneous along the elevational gradient.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47753/1/442_2004_Article_BF00379785.pd

Using Net Wetland Loss, Current Wetland Condition, and Planned Future Watershed Condition for Wetland Conservation Prioritization, Tampa Bay Watershed, Florida

The Tampa Bay Watershed is emblematic of moderately sized coastal watersheds in the US: one-third of the wetlands were lost between the 1950s and 2007; numerous wetland remain, though many have been impacted; most remaining wetlands are hydrologically connected to downgradient waters; there are future constraints to wetland conservation; and the spatial complexity of these factors make it difficult to coordinate watershed-scale wetland conservation planning. Therefore, the Tampa Bay Watershed can serve as a model system for studying coordinated watershed-scale wetland conservation planning. The development of a technical framework requires that spatially explicit information be obtained, analyzed, and organized so customizable queries can be run by stakeholder agencies. Our approach does so by using readily available data to create a geodatabase organized into a set of screening layers that can be intersected hierarchically to identify areas where wetland preservation and restoration might be best used to accomplish overarching goals. Our approach was developed in conjunction with stakeholder input and is currently being integrated into a coordinated watershed-scale wetland conservation effort

Using Net Wetland Loss, Current Wetland Condition, and Planned Future Watershed Condition for Wetland Conservation Planning and Prioritization, Tampa Bay Watershed, Florida

The Tampa Bay Watershed is emblematic of moderately sized coastal watersheds in the US, particularly along the Gulf Coast: one-third of the wetlands were lost between the 1950s and 2007; numerous wetland remain, though many have been impacted; most of the remaining wetlands are hydrologically connected to downstream wetlands and waterbodies; there are future constraints to wetland conservation; and the spatial complexity of these factors make it difficult to coordinate watershed-scale wetland conservation planning. Therefore, the Tampa Bay Watershed can serve as a model system for studying ways to coordinate watershed-scale wetland conservation planning efforts. The development of a technical framework to support coordinated, watershed-scale wetland conservation planning requires that spatially explicit information be obtained, analyzed, and organized so customizable queries can be run by stakeholder agencies. The approach described herein does so by using readily available data to create a geodatabase organized into a set of screening layers that can be intersected hierarchically to identify areas where wetland preservation and restoration might be best used to accomplish overarching goals. The information and tools described herein were developed in conjunction with stakeholder input and are in the process of being integrated into a watershed master plan for freshwater wetland conservation