Resource use efficiency and community effects of invasive Hypochaeris radicata (Asteraceae) during primary succession.

  title={Resource use efficiency and community effects of invasive Hypochaeris radicata (Asteraceae) during primary succession.},
  author={Anna C Schoenfelder and J. G. Bishop and Holly M. Martinson and William F. Fagan},
  journal={American journal of botany},
  volume={97 11},
UNLABELLED PREMISE OF THE STUDY We sought to better understand the impacts and mechanisms underpinning a successful invasion of resource-poor sites by a nonnative plant on Mount St. Helens volcano (MSH). • METHODS We investigated the short-term effects of the nonnative plant Hypochaeris radicata on growth of native species colonizing drought-prone primary successional surfaces under N-limited and N-augmented conditions. To understand the success of H. radicata, we compared its resource use… 
Resource-use efficiencies of three indigenous tree species planted in resource islands created by shrubs: implications for reforestation of subtropical degraded shrublands
Shrub resource islands are characterized by resources accumulated shrubby areas surrounded by relative barren soils. This research aims to determine resource-use efficiency of native trees species
Nitrogen signals and their ecological significance for seed germination of ten psammophilous plant species from European dry acidic grasslands.
It is proposed that nitrogen-rich soil gaps favor establishment of more nitro-tolerant plant species (e.g., A. montanum and J. radicata) as compared to nitrogen-poor ones.
Polyploidization contributes to evolution of competitive ability: a long term common garden study on the invasive Solidago canadensis in China
The competitive ability of polyploids was enhanced through possible rapid post introduction evolution after their introduction into China, which could be the crucial factor for successful invasion by S. canadensis.
Community‐level effects of herbicide‐based restoration treatments: structural benefits but at what cost?
Invasive species alter ecosystem structure, impact biodiversity, and have significant economic costs. In Oregon's Willamette Valley, invasive grasses Arrhenatherum elatius and Schedonorus
A Stoichiometric Model of Early Plant Primary Succession
A stoichiometric ecosystem-level model that considers the role of nitrogen and phosphorus limitation in plant primary succession and applies it to the primary plant community on Mount St. Helens, Washington State, shows that the plant community is colimited by nitrogen and phosphate, and confirms previous suggestions that the presence of a nitrogen-fixing legume can enhance community biomass.
What causes female bias in the secondary sex ratios of the dioecious woody shrub Salix sitchensis colonizing a primary successional landscape?
It is hypothesized that S. sitchensis secondary sex ratios depend on either early-acting genetic factors affecting the seed sex ratio or sex-specific germination or survival rates before maturity, as opposed to factors associated with reproduction in adult plants.
Measuring the influence of nutrients and river water on the photosynthetic efficiency of Didymosphenia geminata using pulse amplitude modulated fluorometry
A 96-well plate format assay using pulse amplitude modulated (PAM) fluorometry was developed and used to investigate the addition of sodium nitrate (NaNO3) to a previously developed D. geminata-specific growth medium, suggesting complex interactions among nutrients that have varying effects on D. Geminata cell health.
Comparative Plant Succession among Terrestrial Biomes of the World
Despite a century of study by ecologists, recovery following disturbances (succession) is not fully understood. This book provides the first global synthesis that compares plant succession in all
The Spread of Exotic Plant Species at Mount St. Helens: The Roles of a Road, Disturbance Type, and Post-disturbance Management
Mount St. Helens and the surrounding landscape were dramatically altered during and after the 18 May 1980 eruption, creating large expanses of disturbed land that could be susceptible to exotic plant
Primary succession trajectories on pumice at Mount St. Helens, Washington
Questions Does vegetation become less variable over time? Do floristic trajectories converge during succession? Can either allogenic (external) or autogenic (internal) factors predict species


Biological invasion by Myrica faya in Hawai'i: plant demography, nitrogen fixation, ecosystem effects
It is concluded that biological invasion by Myrica faya alters ecosystem-level properties in this young volcanic area; at least in this case, the demography and physiology of one species controls characteristics of a whole ecosystem.
N-P Co-Limitation of Primary Production and Response of Arthropods to N and P in Early Primary Succession on Mount St. Helens Volcano
The marked surprising response to P by orthopterans suggests that P-mediated effects of food quantity or quality are critical to insect herbivores in this N-P co-limited primary successional system, and support a previous suggestion that the availability of N in these soils is P-limited.
Impacts of an invasive N2-fixing tree, Falcataria moluccana, on some of the last intact remnants of native wet lowland forest undergoing primary succession on 48-, 213-, and 300-yr-old lava flows of Kilauea Volcano on the island of Hawai’i are described to provide a clear example of how invasive tree species can facilitate invasion by additional nonnative species and eliminate dominant native species.
Invasive Buddleja davidii allocates more nitrogen to its photosynthetic machinery than five native woody species
No differences were detected among the eight populations of B. davidii in any of the traits evaluated, indicating that the invader did not evolve during range expansion, thus providing support to the general-purpose genotype hypothesis.
▪ Abstract In the search to identify factors that make some plant species troublesome invaders, many studies have compared various measures of native and alien invasive plant performance. These
Effects of Exotic Plant Invasions on Soil Nutrient Cycling Processes
This work has reviewed studies that compare pool sizes and flux rates of the major nutrient cycles in invaded and noninvaded systems for invasions of 56 species and suggests that invasive plant species frequently increase biomass and net primary production, increase N availability, alter N fixation rates, and produce litter with higher decomposition rates than co-occurring natives.
Linking community and ecosystem development on Mount St. Helens
Differences in nutrient availability and plant tissue chemistry between older, dense patches of Lupinus lepidus and more recently established low density patches (edge) are reported and co-limitation of the community by N and P is suggested.
Lupine Effects on Soil Development and Function During Early Primary Succession at Mount St. Helens
The pyroclastic flows of Mount St. Helens remain important to scientists seeking to understand the mechanisms of early succession. As in other primary-succession systems, biotic and abiotic
Aboveground productivity and root–shoot allocation differ between native and introduced grass species
The results indicate that native–introduced status may be important when interpreting species effects on grassland processes like productivity and plant N accumulation, and differences in average biomass distribution and N could be important to ecosystems in cases where native and introduced grasses have been exchanged.
The role of refugia and dispersal in primary succession on Mount St. Helens, Washington
Abstract An intense lateral blast devastated Mount St. Helens in 1980, but forest understory species survived in some north-slope ‘refugia’. We explored the effects of refugia on colonization of