Allometric relationships of field populations of two clonal species with contrasting life histories, Cladium jamaicense and Typha domingensis

Miao, ShiLi; Sindhöj, Erik; Edelstein, Christopher

doi:10.1016/j.aquabot.2007.08.001

Cited by 13 publications

(16 citation statements)

References 20 publications

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“…However, in deeper water T. angustifolia was found to produce thicker rhizomes , and a larger proportion of vertical rhizomes than in shallower water . Allometric investigation of biomass allocation above and belowground in T. domingensis and Cladium jamaicense showed no response to nutrient gradients, but did show size-dependent biomass allocation such that smaller plants had greater root biomass relative to larger plants (Miao et al 2008). In another study, S. fluviatilis showed greater biomass allocation to roots in smaller plants, but relatively constant root: shoot ratios in T. latifolia at all sizes .…”

Section: Discussionmentioning

confidence: 97%

Plant community, primary productivity, and environmental conditions following wetland re-establishment in the Sacramento-San Joaquin Delta, California

Miller

Fujii

2009

Wetlands Ecol Manage

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Wetland restoration can mitigate aerobic decomposition of subsided organic soils, as well as re-establish conditions favorable for carbon storage. Rates of carbon storage result from the balance of inputs and losses, both of which are affected by wetland hydrology. We followed the effect of water depth (25 and 55 cm) on the plant community, primary production, and changes in two re-established wetlands in the Sacramento San-Joaquin River Delta, California for 9 years after flooding to determine how relatively small differences in water depth affect carbon storage rates over time. To estimate annual carbon inputs, plant species cover, standing above-and below-ground plant biomass, and annual biomass turnover rates were measured, and allometric biomass models for Schoenoplectus (Scirpus) acutus and Typha spp., the emergent marsh dominants, were developed. As the wetlands developed, environmental factors, including water temperature, depth, and pH were measured. Emergent marsh vegetation colonized the shallow wetland more rapidly than the deeper wetland. This is important to potential carbon storage because emergent marsh vegetation is more productive, and less labile, than submerged and floating vegetation. Primary production of emergent marsh vegetation ranged from 1.3 to 3.2 kg of carbon per square meter annually; and, mid-season standing live biomass represented about half of the annual primary production. Changes in species composition occurred in both submerged and emergent plant communities as the wetlands matured. Water depth, temperature, and pH were lower in areas with emergent marsh vegetation compared to submerged vegetation, all of which, in turn, can affect carbon cycling and storage rates.

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Section: Discussionmentioning

confidence: 97%

Plant community, primary productivity, and environmental conditions following wetland re-establishment in the Sacramento-San Joaquin Delta, California

Miller

Fujii

2009

Wetlands Ecol Manage

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“…Sawgrass leaves are usually found within a narrow range of low leaf N content (f N ) but a relatively wide range of SLA (Miao, 2004;Miao et al, 2008). Accordingly, the characters of the young mature leaves of sawgrass are captured within the usual range of f N about 9-11 mg g 1 (Steward and Ornes, 1975;Miao, 2004) and SLA ranges from 20 to 105 cm 2 g 1 (Miao et al, 2008).…”

Section: Parameterizations and Simulationsmentioning

confidence: 98%

“…Accordingly, the characters of the young mature leaves of sawgrass are captured within the usual range of f N about 9-11 mg g 1 (Steward and Ornes, 1975;Miao, 2004) and SLA ranges from 20 to 105 cm 2 g 1 (Miao et al, 2008). Plant parameters and empirical relationships between traits and functions are collected from existing literature as described in Tables A.1 and I, respectively.…”

Section: Parameterizations and Simulationsmentioning

confidence: 99%

“…Mitsch and Gosselink, 2000;van der Valk, 2006;Reddy and DeLaune, 2008). In addition, a denser stand of sawgrass is often associated with an increase in the sawgrass leaf size (Lodge, 2005), which is in turn correlated to a decrease in the ratio between leaf area and leaf mass, or specific leaf area (SLA) (Miao et al, 2008). However, the decrease in the SLA is often found in environments with drought stresses (Sack et al, 2003), which one would expect to be less common in marsh wetlands.…”

Section: Introductionmentioning

confidence: 98%

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Dynamics of wetland vegetation under multiple stresses: a case study of changes in sawgrass trait, structure, and productivity under coupled plant‐soil‐ microbe dynamics

Muneepeerakul

Miralles‐Wilhelm

et al. 2010

Ecohydrology

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This paper quantifies wetland vegetation dynamics under drought, waterlogging, shading, and nutrient stresses within the coupled plant-soil-microbe system. A plant is characterized by three independent traits, namely leaf nitrogen (N) content, specific leaf area (SLA), and allometric carbon (C) allocation to rhizome storage, while plant growth is modelled through a dynamic plant allocation scheme. The modelling of N focuses on the internal cycle in which the aerobic and anaerobic processes are determined by the dynamics of oxygen controlled by plants, microbial aerobic processes, and hydrologic dynamics. The dynamics of water levels and soil moisture are described by a simple hydrologic model with stochastic rainfall and are decoupled from the plant-soil-microbe dynamics. Using the model to investigate the dynamics of sawgrass, the results, which are consistent with field observations in the southern Everglades, indicate that SLA decreases with increasing anaerobic condition. The lower SLA maintains high stomatal opening, while at the same time prevents cavitational collapse when sawgrass lowers its root : shoot ratio to reduce C cost in root anaerobic respiration. Given a naturally low but not too scarce level of phosphorus, net N mineralization is higher in the wetter hydrologic regimes because the increase in anaerobic decomposition and N mineralization compensate for the decline in those of aerobes; and the slower growing, more nitrogen efficient anaerobes compete less with plants for N. The optimal traits are the results of several counteracting trends of trade-offs in C and N economy differently influenced by trait combinations in different wetland environments.

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“…Aboveground Typha biomass was determined using an allometric relationship we developed (sensu Miao et al 2008) using biomass, leaf height, and elliptical basal area measurements from 148 ramets. These measurements produced the following equation (r 2 ¼ 0.97) which was used to calculate Typha aboveground biomass within each plot.…”

Section: Plant Communitymentioning

confidence: 99%

Restoring diversity after cattail expansion: disturbance, resilience, and seasonality in a tropical dry wetland

Osland

González

Richardson

2011

Ecological Applications

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Abstract. As the human footprint expands, ecologists and resource managers are increasingly challenged to explain and manage abrupt ecosystem transformations (i.e., regime shifts). In this study, we investigated the role of a mechanical disturbance that has been used to restore and maintain local wetland diversity after a monotypic regime shift in northwestern Costa Rica [specifically, an abrupt landscape-scale cattail (Typha) expansion]. The study was conducted in Palo Verde Marsh (Palo Verde National Park; a RAMSAR Wetland of International Importance), a seasonally flooded freshwater wetland that has historically provided habitat for large populations of wading birds and waterfowl. A cattail (T. domingensis) expansion in the 1980s greatly altered the plant community and reduced avian habitat. Since then, Typha has been managed using a form of mechanical disturbance called fangueo (a Spanish word, pronounced ''fahn-gay-yo'' in English). We applied a Typha removal treatment at three levels (control, fangueo, and fangueo with fencing to exclude cattle grazing). Fangueo resulted in a large reduction in Typha dominance (i.e., decreased aboveground biomass, ramet density, and ramet height) and an increase in habitat heterogeneity. As in many ecosystems that have been defined by multiple and frequent disturbances, a large portion of the plant community regenerated after disturbance (via propagule banking) and fangueo resulted in a more diverse plant community that was strongly dictated by seasonal processes (i.e., distinct wet-and dry-season assemblages). Importantly, the mechanical disturbance had no apparent short-term impact on any of the soil properties we measured (including bulk density). Interestingly, low soil and foliar N:P values indicate that Palo Verde Marsh and other wetlands in the region may be nitrogen limited. Our results quantify how, in a cultural landscape where the historical disturbance regime has been altered and diversity has declined, a mechanical disturbance in combination with seasonal drought and flooding has been used to locally restrict a clonal monodominant plant expansion, create habitat heterogeneity, and maintain plant diversity.

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Allometric relationships of field populations of two clonal species with contrasting life histories, Cladium jamaicense and Typha domingensis

Cited by 13 publications

References 20 publications

Plant community, primary productivity, and environmental conditions following wetland re-establishment in the Sacramento-San Joaquin Delta, California

Plant community, primary productivity, and environmental conditions following wetland re-establishment in the Sacramento-San Joaquin Delta, California

Dynamics of wetland vegetation under multiple stresses: a case study of changes in sawgrass trait, structure, and productivity under coupled plant‐soil‐ microbe dynamics

Restoring diversity after cattail expansion: disturbance, resilience, and seasonality in a tropical dry wetland

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