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Article
Examining the development and utilization of infection control policies to safely support adults with intellectual and developmental disabilities in congregate living settings during COVID-19
Congregate living settings supporting individuals with intellectual and developmental disabilities (IDD) have experienced unprecedented challenges during the COVID-19 pandemic. This study aimed to explore the ...
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Article
Ecosystem Recovery from Disturbance is Constrained by N Cycle Openness, Vegetation-Soil N Distribution, Form of N Losses, and the Balance Between Vegetation and Soil-Microbial Processes
We present a framework for assessing biogeochemical recovery of terrestrial ecosystems from disturbance. We identify three recovery phases. In Phase 1, nitrogen is redistributed from soil organic matter to veg...
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Article
The detritus-based microbial-invertebrate food web contributes disproportionately to carbon and nitrogen cycling in the Arctic
The Arctic is the world’s largest reservoir of soil organic carbon and understanding biogeochemical cycling in this region is critical due to the potential feedbacks on climate. However, our knowledge of carbo...
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Article
Extreme spring conditions in the Arctic delay spring phenology of long-distance migratory songbirds
Arctic regions are warming rapidly, with extreme weather events increasing in frequency, duration, and intensity just as in other regions. Many studies have focused on how shifting seasonality in environmental...
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Article
Urban development in the southern Great Plains: effects of atmospheric NOx on the long-lived post oak tree (Quercus stellata)
Concentrated human activities such as the burning of fossil fuels have resulted in chronic nitrogen (N) additions to urban ecosystems. We predicted that urban development in North Texas (NTX; the largest “mega...
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Article
Effects of long-term nutrient additions on Arctic tundra, stream, and lake ecosystems: beyond NPP
Primary producers form the base of food webs but also affect other ecosystem characteristics, such as habitat structure, light availability, and microclimate. Here, we examine changes caused by 5–30+ years of ...
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Article
Open AccessBreeding on the leading edge of a northward range expansion: differences in morphology and the stress response in the arctic Gambel’s white-crowned sparrow
Individuals at the forefront of a range shift are likely to exhibit phenotypic traits that distinguish them from the population breeding within the historic range. Recent studies have examined morphological, p...
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Article
Global environmental change and the nature of aboveground net primary productivity responses: insights from long-term experiments
Many global change drivers chronically alter resource availability in terrestrial ecosystems. Such resource alterations are known to affect aboveground net primary production (ANPP) in the short term; however,...
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Article
Long-term warming restructures Arctic tundra without changing net soil carbon storage
Two decades of summer warming in an Alaskan tundra ecosystem increased plant biomass and woody dominance, indirectly increased winter soil temperature, homogenized the soil trophic structure and suppressed sur...
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Article
Ecological impacts of the invasive grass Sorghum halepense on native tallgrass prairie
Invasive plants frequently have competitive advantages over native species. These advantages have been characterized in systems in which the invading species has already become well established. Surprisingly, ...
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Article
Incorporating clonal growth form clarifies the role of plant height in response to nitrogen addition
Nutrient addition to grasslands consistently causes species richness declines and productivity increases. Competition, particularly for light, is often assumed to produce this result. Using a long-term dataset...
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Article
Trade-offs in plant responses to herbivory influence trophic routes of production in a freshwater wetland
Responses of aquatic macrophytes to leaf herbivory may differ from those documented for terrestrial plants, in part, because the potential to maximize growth following herbivory may be limited by the stress of...
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Article
Effects of the loss of clonal integration on four sedges that differ in ramet aggregation
Although clonal growth is a dominant mode of plant growth in wetlands, the importance of clonal integration, resource sharing among ramets, to individual ramet generations (mother and daughter) and entire clon...
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Article
Litter decomposition in moist acidic and non-acidic tundra with different glacial histories
Plant species composition is a potentially important source of variation in soil processes, including decomposition rates. We compared litter decomposition in two common and compositionally distinct tundra veg...
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Article
Species Diversity Across Nutrient Gradients: An Analysis of Resource Competition in Model Ecosystems
The capture and efficient use of limiting resources influence the competitive success of individual plant species as well as species diversity across resource gradients. In simulations, efficient nutrient acqu...
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Article
Foliar and soil nutrients in tundra on glacial landscapes of contrasting ages in northern Alaska
We compared foliar and soil nutrients in tundra between two different landscapes in the foothills of the Brooks Range, Alaska, that were deglaciated >50,000 and >11,500 years ago, respectively. Our goal was to...
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Chapter
Investigating the community consequences of competition among clonal plants
Although clonal plants comprise most of the biomass of several widespread ecosystems, including many grasslands, wetlands, and tundra, our understanding of the effects of clonal attributes on community pattern...
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Article
Investigating the community consequences of competition among clonal plants
Although clonal plants comprise most of the biomass of several widespread ecosystems, including many grasslands, wetlands, and tundra, our understanding of the effects of clonal attributes on community pattern...
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Article
Effects of flooding, salinity and herbivory on coastal plant communities, Louisiana, United States
Flooding and salinity stress are predicted to increase in coastal Louisiana as relative sea level rise (RSLR) continues in the Gulf of Mexico region. Although wetland plant species are adapted to these stress...
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Article
The influence of vines on an oligohaline marsh community: results of a removal and fertilization study
The effects of competitive suppression by vines on the non-vine plant community have received little attention in temperate habitats. This study investigated the impact vines have on their herbaceous hosts in...
