Browsing by year: collection:
Invasive Species Phenology (IMSA SIR 2017) (3.44164)
Date: 2017 – 2018Creator: Rollinson, Christine R.
Type: Dataset
Description:
Invasive and native forbs and shrubs were identified by Rollinson, Lie, and Dhyani, and Duckett in the King’s Grove area of the Hidden Lake Forest Preserve. Monitoring is primarily conducted by Liu and Dhyani. Forbs include invasive garlic mustard (Alliaria petiolata), geum, and ___. Shrubs include invasive buckthorn (Rhamnus cathartica), invasive honeysuckle (genus Lonicera), and black raspberry (Genus Rubus). Forb traits monitored include initial growth, leaves, flowers/flower buds, open flowers, fruits, ripe fruits, and recent fruit/seed drop. Shrub traits monitored include bud burst, leaves, leaf size, leaf color, leaf fall, flowers/flower buds, open flowers, pollen release, fruits, ripe fruits, and fruit/seed drop. Both forb and shrub monitoring follow National Phenology Network Protocols.
Timing of stem growth for Oaks from around the world (3.44168)
Date: 2010 – 2018Creator: Rollinson, Christine R.
Type: Dataset
Description:Dendrometer band installation was performed by Rollinson and Duckett, and monitoring will be performed by these two along with volunteers. Installation protocols can be found here. Monitoring will be conducted once per week, year-round on 32 oak trees in The Morton Arboretum Oak Collection. Diameter at breast height (DBH) and circumference are measured at the time of dendrometer installation, and the weekly measurements will show the increase in circumference over time, which may be converted to diameter if necessary. Trees were selected that were native to the Chicago area of Illinois, were accessioned before the year 2000 so they would be large enough to install dendrometer bands, and had at least three individuals fitting the first two criteria. The English oak, Quercus robur, was also included.
Phenology of Oaks from around the world (3.44169)
Date: 2017 – 2018Creator: Rollinson, Christine R.
Type: Dataset
Description:Phenology monitoring is being conducted by Rollinson, Duckett, and multiple volunteers in the spring, summer, and fall beginning in 2017. The dataset currently includes 73 oak trees in The Morton Arboretum Oak Collection. Monitoring is conducted once per week, and traits monitored include bud burst, leaves, leaf size, leaf color, leaf fall, flowers/flower buds, open flowers, pollen release, fruits, ripe fruits, and fruit/seed drop. Monitoring follows National Phenology Network (NPN) protocols. Trees were selected to include up to three individuals, randomly selected, from major North American and European species.
Homogenization of plant diversity, composition, and structure in North American urban yards (3.55450)
Date: 2018Creator: Darling, Lindsay E.
Type: Article
Soil carbon stocks across tropical forests of Panama regulated by base cation effects on fine roots (3.55451)
Date: 2018Creator: Condit, Richard
Type: Article
Sympatric parallel diversification of major oak clades in the Americas and the origins of Mexican species diversity (3.55452)
Date: 2018Creator: Hahn, Marlene
Type: Article
Ecosystem model simulations of effects of soil and fire on prairie-forest ecosystem states (3.57671)
Date: 2018 – 2019Type: Dataset
Description:In the Midwest, woodland and prairie ecosystems historically existed side-by-side, with sharp transitions between the two. Understanding how this boundary developed is crucial to understanding how climate change will affect this boundary. Fire, soil water holding capacity, and climate play major roles in ecosystem development on a global scale. However, their roles are difficult to discern at the local scale. We designed a factorial experiment that tested the effects of climate as a driver and two soil parameters that regulate fire events: texture, which regulates soil water holding capacity, and the moisture threshold, which prevents fire from occurring. We ran the model Ecosystem Demography 2.0 (ED2) for 500 years, allowing the ecosystems to self-assemble into a simplified grass-oak system via primary succession. With fire turned off, none of the ecosystems developed into a prairie. With fire turned on, the fire return interval varied between 1 and 8 years. Interestingly, a longer fire return interval of 7 to 8 years generated forested ecosystems in soils with a high water holding capacity and prairie ecosystems in soils with a low water holding capacity. This suggests that both fire and soil are important influences in the development of prairie ecosystems.
Summer 2018 Forestry Plots: Leaf Habit versus Mycorrhizal Fungi Association: A Framework for Predicting Temperate Tree Species Effects on Soil (3.57672)
Date: 2018Type: Dataset
Description:
Tree species affect the biogeochemistry of soil differently. Understanding these effects provides not only insight into current forest function, but also better informs predictions of how shifting forest composition will influence soils in the future. Our objective was to assess if a tree species’ phylogenetic leaf habit or mycorrhizal fungi association is a better predictor of soil biogeochemistry in temperate forests. This study took place in single-species forestry plots throughout the Morton Arboretum (DuPage County, IL). Plots varied by leaf habit (evergreen or deciduous) and known mycorrhizal fungi association (ectomycorrhizal or arbuscular). We collected a composite sample of four cores per plot in June 2018 from both the forest floor (0-5 cm) and mineral soil (5-15 cm) layers. The soil layers were analyzed separately using a two-way ANOVA (P < 0.05, DF=1). We found that both leaf habit and mycorrhizal fungi association can predict a tree’s effects upon soil, and that which factor is the better predictor depends on the nutrient process being measured. In both soil layers, leaf habit predicts percent organic matter (P= 0.0128) and carbon mineralization (P= 0.0095). A linear regression suggested that carbon mineralization is driven by percent organic matter (R² = 0.7482, P= 5.079 e -12). Both leaf habit and type of mycorrhizal fungi association predict C:N ratio in the forest floor layer (Leaf P= 0.0263, Fungi P= 0.0005). Type of mycorrhizal association predicted differences in forest floor pH (P= 0.0001). A linear regression suggested that 30% of differences in pH were driven by exchangeable calcium (Ca2+) (R² = 0.3038, P= 0.0004943). As arbuscular associating trees (usually deciduous) become more dominant in the Chicago region, a trait based framework for predicting soil nutrient changes could aid in the management and mitigation of nutrient cycling and overall ecosystem productivity.
Species richness protects prairie species from vole herbivory (3.57727)
Date: 2018Type: Dataset
Foliar Nutrient Concentrations of Understory Plants in a Chronically Fertilized Lowland Tropical Wet Forest in Costa Rica (3.57734)
Date: 2018Type: Dataset
Description:
Nutrient availability influences key processes for plants in all ecosystems with nitrogen (N) and phosphorus (P) most limiting terrestrial ecosystems. Foliar N and P concentrations have been commonly used as indicators of plant nutritional status. Tropical forests are known to have the highest foliar N:P globally which mirrors a greater degree of P limitation compared to other forests. We tested how plants respond to chronic N and P fertilization by analyzing soil and foliar N and P concentrations from a long term fertilization experiment in Costa Rica. As foliar nutrient concentrations often reflect soil nutrient availability, we had found that this may not have been the case for our samples. Total soil N had not changed significantly but foliar N was affected. We also found that available soil P had increased with chronic fertilization but foliar P was unaffected. There was an overall species effect on foliar nutrient concentrations reflecting the plant specific response to nutrient additions. Here we have added to the knowledge of how plants in tropical forests respond to changes in nutrient availability is important to predict how they will respond to anthropogenic alterations in nutrient cycles, such as N deposition.
In tallgrass prairie restorations, relatedness influences neighborhood-scale plant invasion while resource availability influences site-scale invasion (3.60005)
Date: 2018Creator: Hipp, Andrew
Type: Article
A New Framework for Evaluating Estimates of Symbiotic Nitrogen Fixation in Forests (3.60006)
Date: 2018Creator: Alvarez-Clare, Silvia
Type: Article
Phylogenetic Diversity (3.60007)
Date: 2018Creator: Bowles, Marlin L., Hipp, Andrew, Midgley, Meghan G., Scharenbroch, Bryant C., Glasenhardt, Mary-Claire, Garner, Mira, Wagreich, Hayley
Type: Book
Extent: pages 189-210
Are there practical limits to urban tree diversity? (3.60008)
Date: 2018Creator: Watson, Gary W.
Type: Article
Management of Invasive Plants and Pests of Illinois (3.60011)
Date: 2018Creator: Bethke, Tricia
Type: Article
Determination of Death Dates of Coarse Woody Debris of Multiple Species in the Central Hardwood Region (Indiana, USA) (3.60012)
Date: 2018Creator: Rollinson, Christine R.
Type: Article
Implementing a new approach to effective conservation of genetic diversity, with ash (Fraxinus excelsior) in the UK as a case study (3.60014)
Date: 2018Creator: Hoban, Sean M.
Type: Article
Next-generation conservation genetics and biodiversity monitoring (3.60015)
Date: 2018Creator: Hoban, Sean M.
Type: Article
Differentiation measures for conservation genetics (3.60016)
Date: 2018Creator: Hoban, Sean M.
Type: Article
Guidelines for planning genomic assessment and monitoring of locally adaptive variation to inform species conservation (3.60017)
Date: 2018Creator: Hoban, Sean M.
Type: Article
Associated morphometric and geospatial differentiation among 98 species of stone oaks (Lithocarpus) (3.60018)
Date: 2018Creator: Cannon, Charles H.
Type: Article
Linking Science and Practice for Oak Ecosystem Recovery in the Chicago Wilderness Region (3.60019)
Date: 2018Creator: Cannon, Charles H., Custic, Melissa, Okallau, Emily, Scott, Lydia
Type: Article
The spatial structure of phylogenetic and functional diversity in the United States and Canada: An example using the sedge family (Cyperaceae) (3.60020)
Date: 2018Creator: Hipp, Andrew, Escudero, Marcial
Type: Article
Prescription side effects: Long-term, high-frequency controlled burning enhances nitrogen availability in an Illinois oak-dominated forest (3.60021)
Date: 2018Creator: Taylor, Quinn, Midgley, Meghan G.
Type: Article
Research Brief: Prescription side effects: Long-term, high-frequency controlled burning enhances nitrogen availability in an Illinois oak-dominated forest (3.60022)
Date: 2018Creator: Midgley, Meghan G., Taylor, Quinn
Type: Article
Gaining a global perspective on Fagaceae genomic diversification and adaptation (3.60023)
Date: 2018Creator: Cannon, Charles H., Hipp, Andrew, Deng, Min, Kua, Chai-Shian
Type: Article
The role of diversification in community assembly of the oaks (Quercus L.) across the continental U.S. (3.60024)
Date: 2018Creator: Hipp, Andrew
Type: Article
RAD‐seq linkage mapping and patterns of segregation distortion in sedges: meiosis as a driver of karyotypic evolution in organisms with holocentric chromosomes (3.60025)
Date: 2018Creator: Hipp, Andrew, Hahn, Marlene, Escudero, Marcial
Type: Article
A nuclear DNA barcode for eastern North American oaks and application to a study of hybridization in an Arboretum setting (3.60027)
Date: 2018Creator: Hipp, Andrew, Hahn, Marlene, Lobdell, Matt, Fitzek, Elisabeth
Type: Article
Phylogeny and biogeography of East Asian evergreen oaks (Quercus section Cyclobalanopsis; Fagaceae): Insights into the Cenozoic history of evergreen broad-leaved forests in subtropical Asia (3.60031)
Date: 2018Creator: Hipp, Andrew, Hahn, Marlene, Deng, Min
Type: Article
Integrative conservation genetics: Prioritizing populations using climate predictions, adaptive potential and habitat connectivity (3.60034)
Date: 2018Creator: Hoban, Sean M.
Type: Article
Optimizing Conservation Strategies for a Threatened Tree Species: In Situ Conservation of White Ash (Fraxinus americana L.) Genetic Diversity through Insecticide Treatment (3.60055)
Date: 2018Creator: Hoban, Sean M.
Type: Article