Author Archives: Jena Richter Landers

Life at Marinette Campus

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Sophomore international student Chau Pham is hosting the LifeatUWGB Instagram account showing life at the Marinette Campus. Pham is from Hanoi, Vietnam and has shared a photo from an art class and a video of a fellow international student playing piano among other images. Follow along. Are you or someone you know willing to share a glimpse at their life at UW-Green Bay? Students, staff, faculty and administration from all campuses are encouraged to apply at bit.ly/LifeAtUWGB.

Upcoming iPat films

Save the date for the upcoming iPat (impact = population * affluence * technology) films, part of the 7th Annual iPat Environmental Film Series.

Enjoy entertaining and thought-provoking films that evaluate the condition of the natural world, identify drivers of environmental harm, and consider solutions. At the conclusion of each film a community expert or panel will offer their insights, draw our attention to relevant local issues, and answer questions from the audience.

The films are free admission and sponsored by Public & Environmental Affairs, Public and Environmental Affairs Council (PEAC) and Environmental Management and Business Institute (EMBI). Screenings occur in the Christie Theatre on the Green Bay campus.

Schedule

Nov. 5, 2018, 7 p.m.: “Comfort Zone”

Dec. 3, 2018, 7 p.m.: “Of Shark and Man”

For more information, contact Ashley Heath at 920-465-2608 or heatha@uwgb.edu or Elizabeth Wheat at 920-465-2848 or wheate@uwgb.edu.

Signature and Cultural Events Coordinator candidate presentations begin today

Please join the Office of Student Life for open forum presentations from the Signature and Cultural Events Coordinator position candidates. Each candidate will address the impacts of signature events to students’ experience and success.

This new position will be responsible for Commencement and will coordinate culturally focused programs such as Hispanic Heritage Month, Black History Month and other key cultural programs. Resumes will be available at each session.

Tuesday, Oct. 16  (1 to 2 p.m., Union World Unity A) – Courtney Cottrell, University of Illinois, Urbana-Champaign

Tuesday, Oct. 23  (1 to 2 p.m., Union 103/Alumni Room) – Nicole Micolichek, Indiana University South Bend

Thursday, Oct. 25  (1 to 2 p.m., Union 103/Alumni Room ) – Megan DuFrane-Groose, UW-Stout

Academic staff professional development funds available to Green Bay Campus

The Academic Staff Professional Development Allocations Committee has funds available to assist academic staff in attending professional development opportunities. Funding is available for up to 50 percent of the total cost, not to exceed $750. Total funding provided is subject to availability and may be less than requested. Note that funds will not be awarded “after the fact.” All funded activities must be reimbursed in the current fiscal year, 2018-2019.

Please submit all materials electronically to Kay Voss, vossk@uwgb.eduApplication and guidelines available here. Applications will be processed as they are received. This year’s funds are only available for Academic Staff employed by the UW-Green Bay campus. If you have questions, please contact committee members Jena Richter Landers (chair), Kay Voss, Nora Kanzenbach, Joanie Dovekas or Joe Schoenebeck.

Insta[gram]-acceptance

You may recall media coverage in past years of prospective students receiving notification of their acceptance to UW-Green Bay via Snapchat. This year, to shift with technology innovations, staff from Admissions will be notifying accepted students of all four campuses of their acceptance via the UW-Green Bay Instagram. Students will begin receiving notice of admission for fall 2019 on Saturday, Sept. 15.

The Science behind fall color: Q and A with UW-Green Bay Assistant Prof. Karen Stahlheber

Karen Stahlheber

What’s really the science behind fall color? It just so happens that UW-Green Bay has an expert in plant ecology, Assistant Professor Karen Stahlheber. In this Q and A, she shares what she has learned through the years in her own research, as well as that of the plant physiology class that has been measuring pigment concentrations since 2005!

Q: What types of trees turn color and why?
A: Trees turn color in the fall as they recycle nutrients and prepare for the winter. Each species of tree has their own characteristic pattern of autumn color change, which is caused by the type of pigments present in the leaves and whether or not that species produces new pigment.

Colors like yellow, orange and brown are produced by pigments that are always present in leaves, but are usually masked by the green color of chlorophyll. Around the same date every year (determined by the days shortening in the fall), trees stop producing new chlorophyll in their leaves, and instead focus on breaking down and extracting nutrients for storage before the leaves fall. The loss of the green color unveils yellow and orange pigments, which are not recycled as quickly.

Trees with leaves that turn red or purple actually synthesize new pigments, called anthocyanins, which are not present in the leaves during the rest of the year. The exact reason why some trees do this is not well known. One hypothesis is that the red color acts as a kind of “sunscreen” to protect other components in the leaf that are being broken down and re-absorbed into the stems. Another idea is that the color is a signal to insect pests about plant health, causing insects to choose less vibrant trees for laying their eggs.

Q: Why does the same tree often have multiple colors?
A: Each leaf can be going through the process of dying at a slightly different rate, meaning that some leaves are still green while others are colorful. Sunlight affects how much of the red pigment leaves produce, so the sunny side of a tree canopy may also appear more vibrantly colored than shadier parts.

Karen StahlheberQ: What provides the intensity of color?
A: Temperature and sunlight can affect intensity of the red coloration. So, a period of dry, cold nights with bright sunny days will bring out the most brilliant colors! This hints at the idea that red pigments provide protection from light for the structures in leaf cells. The intensity of yellow and orange colors mostly depends on the species – some trees will drop leaves while they are still green, other trees like beech turn brown as the yellow pigments are destroyed and the remaining tanning pigments are oxidized.

Q: Do the same trees turn the same color at relatively the same time?
A: Generally, yes. Most studies of phenology (the timing of seasonal events like leaves falling or the emergence of leaves and flowers in the spring) in trees have found that individual trees tend to be consistently “early” or “late” from year to year. The beginning of the autumn for trees is signaled by changes in the length of day, which is always the same each year. This makes the season relatively predictable, with variation provided by secondary cues from temperature that control how fast the season progresses.

Q: Any other interesting facts you would like to share about the science behind color change?
A: We still don’t have a clear sense for how fall will change along with the climate of Wisconsin. Cooler nights in fall are best for brighter colors, so warm nights could make fall leaves of the future look dull. A wet season can make colors duller as well, but drought in late summer can make trees drop their leaves early, effectively ending the show before it begins. On the other hand, increasing carbon dioxide is predicted to intensify colors. The upper division plant physiology class on campus has been measuring pigment concentrations in several tree species on campus since at least 2005, so we have a rich source of data here on campus to begin looking at this question!

This Q and A originally appeared in this source in September 2017.

Drumroll, please. First TEDx UW-Green Bay speaker is…

Organizers of TEDx UW-Green Bay have begun announcing speakers for the Nov. 1, 2018 event. The first speaker is recent Founders Award winner, UW-Green Bay Prof. Illene Cupit (Human Development). To see speakers as they are announced, visit the Facebook page for the event. Tickets (limited this first year) are expected to go on sale mid-September.