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Arboretum Land Use Core Analysis (3.44157)
Date: 2011Creator: Fahey, Bob
Type: Dataset
Description:The dataset consists of approximately 105 tree cores from multiple areas at The Morton Arboretum.
Arboretum Phenology and Climate Response (3.44158)
Date: 2011 – 2016Creator: Fahey, Bob
Type: Dataset
Description:Phenology monitoring was conducted by Fahey, Carrier, and multiple volunteers in the spring and fall of each year from 2011 through 2016. The dataset includes ~685 individuals from the Juglandaceae, Midwest, Northern Illinois, Ozark, Quercus, Tilia, and Ulmaceae collections at The Morton Arboretum. Traits monitored include: fruiting, bud condition, leaf size, flower condition, and leaf fall, and leaf color. Protocols can be found in T://Fahey/Current Projects/ Arboretum Phenology and Climate Response/Protocols.
Coastal Pines Tree Cores (3.44159)
Date: 2011 – 2012Creator: Fahey, Bob
Type: Dataset
Description:The dataset includes tree cores from approximately 500 trees from eight sites around Lakes Michigan and Superior. Annual growth increments were measured to 0.001 mm using a Velmex stage micrometer and Metronics Quick-Check 4100.
Chicago Urban Forest Study (CUFS) Tree Cores (3.44160)
Date: 2013Creator: Fahey, Bob
Type: Dataset
Description:
The dataset includes approximately 650 tree core measurements from five sites. The study part of a joint project between the Forest Ecology Lab and Soil Science Lab at The Morton Arboretum. For more information, see the CUFS website.
ILDNR/INAI Tree Cores (3.44162)
Date: 2012Creator: Fahey, Bob
Type: Dataset
Description:The dataset consists of nearly 200 tree cores from 11 different sites in northern and southern Illinois. Ring-widths were measured under magnification of a binocular microscope to the nearest 0.001 mm with a Velmex Unislide slide-stage micrometer interfaced with a computer and MeasureJ2X program.
Project conducted in 2012. Cores were collected in 1976 and 2008-2011.
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.
Northern Wisconsin and Michigan Tree Cores (3.44167)
Creator: Fahey, Bob
Type: Dataset
Description:The dataset contains tree ring measurements from approximately 360 trees from 10 sites in Wisconsin and Michigan.
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.
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.
Comparison of growth and recovery in response to drought stress across wood types (3.67072)
Date: 2019Type: Dataset
Description:Droughts are one of the major phenomena that affect the development and growth of trees. That is why this study was carried out in order to know which trees are more efficient at the time of recovery and continue to grow after having suffered a year of drought. To this end, samples were taken from the rings of 12 tree species found in The Morton Arboretum in Illinois. These were dried, assembled and sanded, to then facilitate the measurements of their widths for each year of rings, thus obtaining an average group of years where the trees were almost completely affected. After our initial belief that the non-porous trees were more suitable in times of drought, we found that porous trees, or even more specific diffuse trees, are more suitable in the event of droughts.