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Tag: trees

Image of tree and people outside
Oct 20 2022

Highlights of the Tree Talk and Tour at the Sciences Library

Posted on October 20, 2022October 24, 2022 by Laurie Neuerburg

We had a great time learning about our campus trees at the Tree Talk and Tour at the Sciences Library. It was fascinating to learn about the oldest trees on campus as well as new plantings. We also learned about our State Champion trees, special trees such as the chestnut sapling planted to honor Anne Frank, and about the Tree Inventory App. We appreciate all the care and effort that goes into the trees that keep our campus looking green and beautiful! Thank you to everyone who attended, and thank you to our University of Iowa Arborist Andy Dahl! 

Image of presenter and audienceImage of tree and people outsideImage of person standing in front of tree trunkImage of top of tree

Posted in Biology, Databases, Environmental Sciences, Events, GeosciencesTagged arboretum, campus trees, trees
Colorful trees
Aug 22 2022

Tree Talk & Tour at the Sciences Library

Posted on August 22, 2022October 17, 2022 by Laurie Neuerburg

Join Arborist Andy Dahl for a tree talk and tour at the Sciences Library! This program will be held on Wednesday, Oct. 19, 2022. The tree talk will begin at 2 p.m. on the third floor of the Sciences Library. The walking tour of campus trees will begin after the talk. This program is free and open to the public. The Sciences Library is located at 120 Iowa Ave.

Tree Talk & Tour at the Sciences Library
120 Iowa Ave, Iowa City
Wednesday, Oct. 19, 2022
• 2 p.m.: Tree talk located on the 3rd floor of the Sciences Library
• After the talk: Walking tour of campus trees starting at the Sciences Library

The Arbor Day Foundation has designated the University of Iowa as a Tree Campus Higher Education institution, and the University of Iowa campus grounds are recognized as an arboretum by ArbNet, a professional network of arboreta and tree professionals. The University of Iowa campus showcases over 8,000 trees representing over 330 species.

Individuals with disabilities are encouraged to attend all University of Iowa–sponsored events. If you are a person with a disability who requires a reasonable accommodation in order to participate in this program, please contact Laurie Neuerburg at 319-467-0216 or laurie-neuerburg@uiowa.edu.

Tree Talk Tour digital sign 20221017

Posted in Biology, Environmental Sciences, EventsTagged arboretum, campus tree tour, fall colors, tree talk, trees
Image of trees along the Iowa River
Sep 08 2021

Tree Tour & Talk at the Sciences Library

Posted on September 8, 2021September 8, 2021 by Laurie Neuerburg

Image of trees along the Iowa River

Join Arborist Andy Dahl for a tree talk and tour at the Sciences Library! This program will be held on Friday, October 1, 2021. The tree talk will begin at 2:00 PM on the 3rd floor of the Sciences Library. There will be a short break at 2:45 PM for light refreshments. The walking tour of campus trees will begin at 3:00 PM at the Sciences Library. This program is free and open to the public. The Sciences Library is located at 120 Iowa Ave.

Tree Talk & Tour at the Sciences Library
120 Iowa Ave, Iowa City
Friday, October 1, 2021
• 2:00 PM: Tree talk located on the 3rd floor of the Sciences Library
• 2:45 PM: Break for light refreshments
• 3:00 PM: Walking tour of campus trees starting at the Sciences Library

The Arbor Day Foundation has designated the University of Iowa as a Tree Campus Higher Education institution, and the University of Iowa campus grounds are recognized as an arboretum by ArbNet, a professional network of arboreta and tree professionals. The University of Iowa campus showcases over 8,000 trees representing over 330 species.

Individuals with disabilities are encouraged to attend all University of Iowa–sponsored events. If you are a person with a disability who requires a reasonable accommodation in order to participate in this program, please contact Laurie Neuerburg at 319-467-0216 or laurie-neuerburg@uiowa.edu.

Posted in Biology, Environmental Sciences, EventsTagged arboretum, campus trees, trees
Sep 25 2020

Red, Orange, Yellow: The Science of Fall Foliage

Posted on September 25, 2020September 25, 2020 by Laurie Neuerburg

The autumnal equinox occurred on Tuesday, September 22 this year. This marks the turning point when the sun passes over the Earth’s equator, and the hours of daylight and night are close to equal. From this point on, the hours of daylight will soon begin decreasing each day until the shortest day of the year occurs on the winter solstice. One of the most beautiful effects of the shorter days occurs when deciduous trees prepare for winter by taking on the brilliant colors of red, orange, yellow, and purple. According to the Iowa DNR’s Fall Color Report, the best viewing time for fall colors in central Iowa begins the first week of October.

When deciduous trees stop producing chlorophyll to get ready for winter, their leaves cease being green and turn to red, yellow, orange, or purple. InChemistry’s “Why Do Leaves Change Color in the Fall?” explains the chemical compounds that are responsible for this color change. Red and purple colors are due to anthocyanins present in the leaves, while yellow and orange colors are due to carotenoids and flavonoids.  

In Smithsonian Magazine, you can watch a two-minute time-lapse video showing different leaves changing color, a process that would normally happen slowly over several days. It is interesting to watch the video since the process of a leaf turning orange or yellow is different than when a leaf turns red or purple.

If you’re interested in seeking out fall colors, you can use the UI Trees web application to find maples, oaks, dogwoods, and other deciduous trees on campus. You can also view beautiful fall color displays that have been captured in the Iowa Digital Library’s Geoscience Slides collection!

Image of autumn colorsImage of Autumn colors along bouldery stream

Posted in Biology, Chemistry, Environmental Sciences, UncategorizedTagged autumn colors, fall colors, trees

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