Morton Arboretum : Search Objects :

Invasive Species Phenology (IMSA SIR 2017) (3.44164)

Date: 2017 – 2018
Creator: 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 – 2018
Creator: 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 – 2018
Creator: 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.