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The degree to which variation in plant community composition (beta-diversity) is predictable from environmental variation, relative to other spatial processes, is of considerable current interest. We addressed this question in Costa Rican rain forest pteridophytes (1,045 plots, 127 species). We also tested the effect of data quality on the results, which(More)
The Open University's repository of research publications and other research outputs Methane fluxes during the initiation of a large-scale water table manipulation experiment in the Alaskan Arctic tundra Journal Article (2009). Methane fluxes during the initiation of a large-scale water table manipulation experiment in the Alaskan Arctic tundra. Global(More)
Leaf Area Index (leaf area per unit ground area, LAI) is a key driver of forest productivity but has never previously been measured directly at the landscape scale in tropical rain forest (TRF). We used a modular tower and stratified random sampling to harvest all foliage from forest floor to canopy top in 55 vertical transects (4.6 m(2)) across 500 ha of(More)
The Open University's repository of research publications and other research outputs Increased CO 2 loss from vegetated drained lake tundra ecosystems due to flooding Journal Article (2012). Increased CO2 loss from vegetated drained lake tundra ecosystems due to flooding. Global Biogeochemical Cycles, 26(2), article no. GB2004. For guidance on citations see(More)
Populations occurring at species' range edges can be locally adapted to unique environmental conditions. From a species' perspective, range-edge environments generally have higher severity and frequency of extreme climatic events relative to the range core. Under future climates, extreme climatic events are predicted to become increasingly important in(More)
This research examines the relationships between El Niño Southern Oscillation (ENSO), water level, precipitation patterns and carbon dioxide (CO2) exchange rates in the freshwater wetland ecosystems of the Florida Everglades. Data was obtained over a 5-year study period (2009-2013) from two freshwater marsh sites located in Everglades National Park that(More)
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