Joshua S. Caplan
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View article: Spatiotemporal Dynamics of Road Salt in a Highway Bioswale: A Comparison of Point and Continuous Monitoring Methods
Spatiotemporal Dynamics of Road Salt in a Highway Bioswale: A Comparison of Point and Continuous Monitoring Methods Open
Stormwater entering stormwater control measures (SCMs) from roadways can carry high loads of deicing salt, which can impede vegetation growth. We investigated spatial and temporal patterns of soil conductivity to compare point and continuo…
View article: The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity
The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity Open
Accurate assessment of leaf functional traits is crucial for a diverse range of applications from crop phenotyping to parameterizing global climate models. Leaf reflectance spectroscopy offers a promising avenue to advance ecological and o…
View article: The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity (v1.0.0)
The Global Spectra-Trait Initiative: A database of paired leaf spectroscopy and functional traits associated with leaf photosynthetic capacity (v1.0.0) Open
The Global Spectra-Trait Initiative (GSTI) aims to generate generalizable spectra trait models using reflectance data to predict leaf traits associated with the photosynthesis capacity of leaves. It comprises a synthesized dataset of leaf …
View article: Methane fluxes in tidal marshes of the conterminous United States
Methane fluxes in tidal marshes of the conterminous United States Open
Methane (CH 4 ) is a potent greenhouse gas (GHG) with atmospheric concentrations that have nearly tripled since pre‐industrial times. Wetlands account for a large share of global CH 4 emissions, yet the magnitude and factors controlling CH…
View article: Predicting Urban Trees’ Functional Trait Responses to Heat Using Reflectance Spectroscopy
Predicting Urban Trees’ Functional Trait Responses to Heat Using Reflectance Spectroscopy Open
Plant traits are often measured in the field or laboratory to characterize stress responses. However, direct measurements are not always cost effective for broader sampling efforts, whereas indirect approaches such as reflectance spectrosc…
View article: Compounding Effects of Salinity and Compaction on Hydraulic Properties of Roadside Stormwater Control Measures
Compounding Effects of Salinity and Compaction on Hydraulic Properties of Roadside Stormwater Control Measures Open
Stormwater control measures (SCMs) such as retention basins, bioswales, and bioinfiltration systems are used to reduce peak flows and remove pollutants from stormwater in temperate urban landscapes. However, the application of de-icing sal…
View article: Responses of stomatal features and photosynthesis to porewater N enrichment and elevated atmospheric CO<sub>2</sub> in <i>Phragmites australis</i>, the common reed
Responses of stomatal features and photosynthesis to porewater N enrichment and elevated atmospheric CO<sub>2</sub> in <i>Phragmites australis</i>, the common reed Open
PREMISE Biological invasions increasingly threaten native biodiversity and ecosystem services. One notable example is the common reed, Phragmites australis , which aggressively invades North American salt marshes. Elevated atmospheric CO 2…
View article: Effects of Revegetation on Soil Physical and Chemical Properties in Solar Photovoltaic Infrastructure
Effects of Revegetation on Soil Physical and Chemical Properties in Solar Photovoltaic Infrastructure Open
Solar photovoltaic (PV) technology is being deployed at an unprecedented rate. However, utility-scale solar energy development is land intensive and its large-scale installation can have negative impacts on the environment. In particular, …
View article: When Green Infrastructure Turns Grey: Plant Water Stress as a Consequence of Overdesign in a Tree Trench System
When Green Infrastructure Turns Grey: Plant Water Stress as a Consequence of Overdesign in a Tree Trench System Open
Green infrastructure (GI) systems are often overdesigned. This may be a byproduct of static sizing (e.g., accounting for a design storm’s runoff volume but not exfiltration rates) or may be deliberate (e.g., buffering against performance l…
View article: When Green Infrastructure Turns Grey: Implications of Overdesign on Plant Water Stress
When Green Infrastructure Turns Grey: Implications of Overdesign on Plant Water Stress Open
Green infrastructure systems are often overdesigned. This may be a byproduct of static sizing (e.g., accounting for a design storm’s runoff volume but not exfiltration rates) or may be deliberate (e.g., buffering against performance …
View article: Final report: Superior adaptation to drought in Rubus armeniacus (Himalayan blackberry) in northwest Oregon
Final report: Superior adaptation to drought in Rubus armeniacus (Himalayan blackberry) in northwest Oregon Open
Despite the status Rubus armeniacus (Himalayan blackberry) has as one of the most prolific and damaging plant invaders in the Pacific Northwest, we know little about the role of water relations in its success. The information available on …
View article: When Green Infrastructure Turns Grey: Implications of Overdesign for Plant Water Stress
When Green Infrastructure Turns Grey: Implications of Overdesign for Plant Water Stress Open
Overdesign is a common strategy used by green infrastructure (GI) designers to account for unexpected performance loss, but such a strategy can create undesirable plant responses if it decreases water availability. The seasonal and event-b…
View article: Decadal-scale shifts in soil hydraulic properties as induced by altered precipitation
Decadal-scale shifts in soil hydraulic properties as induced by altered precipitation Open
Climate change may alter the physical properties that control soil water storage and fluxes in terrestrial ecosystems.
View article: Fine‐root traits are linked to species dynamics in a successional plant community
Fine‐root traits are linked to species dynamics in a successional plant community Open
Despite the importance of fine roots for the acquisition of soil resources such as nitrogen and water, the study of linkages between traits and both population and community dynamics remains focused on aboveground traits. We address this g…
View article: Nitrogen enrichment alters carbon fluxes in a New England salt marsh
Nitrogen enrichment alters carbon fluxes in a New England salt marsh Open
Introduction: Nitrogen enrichment of coastal salt marshes can induce feedbacks that alter ecosystem-level processes including primary production and carbon sequestration. Despite the rising interest in coastal blue carbon, the effects of c…
View article: Complementary responses of morphology and physiology enhance the stand‐scale production of a model invasive species under elevated <scp>CO</scp><sub>2</sub> and nitrogen
Complementary responses of morphology and physiology enhance the stand‐scale production of a model invasive species under elevated <span>CO</span><sub>2</sub> and nitrogen Open
Elevated atmospheric carbon dioxide ( eCO 2 ) concentrations and nitrogen (N) enrichment are known to enhance plant productivity and invasion. However, the implications of their interactive effects for plant productivity are not well under…
View article: Nitrogen uptake kinetics and saltmarsh plant responses to global change
Nitrogen uptake kinetics and saltmarsh plant responses to global change Open
Coastal wetlands are important carbon sinks globally, but their ability to store carbon hinges on their nitrogen (N) supply and N uptake dynamics of dominant plant species. In terrestrial ecosystems, uptake of nitrate (NO 3 − ) and ammoniu…
View article: Cosmopolitan Species As Models for Ecophysiological Responses to Global Change: The Common Reed Phragmites australis
Cosmopolitan Species As Models for Ecophysiological Responses to Global Change: The Common Reed Phragmites australis Open
Phragmites australis is a cosmopolitan grass and often the dominant species in the ecosystems it inhabits. Due to high intraspecific diversity and phenotypic plasticity, P. australis has an extensive ecological amplitude and a great capaci…
View article: [Dataset:] Allometry data and equations for coastal marsh plants
[Dataset:] Allometry data and equations for coastal marsh plants Open
Data sets contain measurements of tidal marsh plants that can be used 8 to build allometric models of biomass as a function of height and width. Measurements come 9 from plants collected at the Smithsonian Institution’s Global Change Resea…
View article: Nutrient foraging strategies are associated with productivity and population growth in forest shrubs
Nutrient foraging strategies are associated with productivity and population growth in forest shrubs Open
In forest understoreys of eastern North America, elevated nutrient availability may impose a filter on species success in addition to above-ground processes such as herbivory and overstorey canopy conditions. Shrubs that have root traits a…
View article: Allometry data and equations for coastal marsh plants
Allometry data and equations for coastal marsh plants Open
Coastal marshes are highly valued for ecosystem services such as protecting inland habitats from storms, sequestering carbon, removing nutrients and other pollutants from surface water, and providing habitat for fish, shellfish, and birds.…
View article: Box-Counting Dimension Revisited: Presenting an Efficient Method of Minimizing Quantization Error and an Assessment of the Self-Similarity of Structural Root Systems
Box-Counting Dimension Revisited: Presenting an Efficient Method of Minimizing Quantization Error and an Assessment of the Self-Similarity of Structural Root Systems Open
Fractal dimension (FD), estimated by box-counting, is a metric used to characterize plant anatomical complexity or space-filling characteristic for a variety of purposes. The vast majority of published studies fail to evaluate the assumpti…