Tree and Shrub Walk co-hosted by the Rocky Mountain Herbarium

 

Specialists from the Rocky Mountain Herbarium, UW Extension, and the UW Biodiversity Institute led a “Tree and Shrub Walk” on Sunday, January 30th in the Medicine Bow National Forest at the Happy Jack Trailhead.  More than 30 people gathered to identify evergreen trees and shrubs on a cold winter day.  “The goal of our plant walks is to give everyone opportunities to learn the species visible at different times of year,” said Dr. Kristina Hufford in the UW College of Agriculture and Natural Resources.  

Dr. David Tank, who recently joined the Rocky Mountain Herbarium as a UW Botany Professor and Herbarium Director, enjoyed the walk.  “For me,” said Tank, “it was great to meet other plant enthusiasts in the area.”  Anyone interested should keep an eye out for future plant walks advertised through the UW Biodiversity Institute Facebook page and other social media accounts.  More information can be found at the following website: https://www.wyobiodiversity.org/

Botany students trained Lander (Wyoming) Middle School students to measure soil texture

As part of the 2015 Wyoming State Science Fair, Botany graduate students, Christopher Beltz and Caitlin Rottler led one of the enrichment activities where they demonstrated the process of obtaining soil texture to a group of Lander Middle School students.

This activity included both the laboratory and the “feel” method. Students learned how to use a graduated cylinder, hydrometer, and soil sample of a specific mass to determine the percent-by-mass of the sand, silt, and clay. The feel method is commonly used in the field through examining specific features of wet soils in a person’s palms. Soil texture at a given locale is a significant driver of a number of ecosystem functions and can effect which species of plants are able to grow.

The Bearded Lady Project: Challenging the Face of Science

Dr. Ellen Currano, our newest faculty member, has become involved in outreach activities promoting the participation of women in science.

She is the lead subject and scientific consultant for The Bearded Lady Project: Challenging the Face of Science, a collaboration with film director Lexi Jamieson Marsh and photographer Kelsey Vance.

This documentary film and photographic project will celebrate “the work of female paleontologists and highlighting the challenges and obstacles they face”.

Please visit the website http://thebeardedladyproject.com/ to watch photos, trailers, and go behind the scenes to learn more about this project.

Prospective graduate students interested in pursuing field-based paleobotanical research in Wyoming are encouraged to email her.

Eighth graders measure and analyze the spectral reflection pattern of live and dead plant leaves

Fifty-seven, eighth grade students at Laramie Junior High School learned how earth surface objects interact in the visible and invisible regions of the electromagnetic spectrum (light) and measured and analyzed spectral properties of live and dead plant leaves.

Students in the first batch are
collecting spectral data (Apr 2, 2013)

Describing the value of this hands-on exercise, Mr. Ron Whitman, eighth grade physical sciences teacher, said, “[M]y approach to teaching science has always been having the students experience the practical applications of science. Ramesh Sivanpillai from the University of Wyoming in Laramie has been presenting information about remote sensing to my classes for several years.  My 8th grade physical science class is an introductory class for physics and chemistry. One of the topics discussed is electromagnetic waves. Ramesh presented information to my classes for two, 90 minutes sessions. Ramesh introduces the electromagnetic spectrum with a very informative power point presentation. Most of the two 90 minute sessions the students get to use … spectrometers to measure and eventually calculate the percent reflectance of particular wavelengths emitted by dead vs. living deciduous leaves and dead vs. living coniferous needles. This year the students got to plot their data on a computer spreadsheet and have the program calculate and graph the data. Wow! This was awesome. Students compared their own data and other student’s data and discussed what was similar, different and reasons for error. In my assessment of the two 90 minute sessions my students continue to be excited about remote sensing and the tools, both simple and complex, that are able to detect different frequencies of the electromagnetic spectrum.”

Students in one of the three classes are entering their data in spreadsheet
to calculate and graph reflectance values of live and dead leaves (Apr 10, 2013)

Students’ feedback highlighted different aspects of this lecture and hands-on exercise (NOTE: for privacy, students are identified by their initials):

Verifying that all numbers were entered correctly
(Class period 3: Apr 10, 2013)

“This experiment helped to understand chapter 6 by showing how the colors change…” - DG

“This helped me understand color more. The effects of man can affect earth so much.” – CM

“It helped me understand that not all light is visible to us as humans. It helped me understand that nothing has a true color it is just what color we see it in, how our eyes work.” - HS

“This hands-on exercise helped me understand colors and the interaction of radiation and it was fun.”- NM

“This exercise taught me that different colors reflect different amounts of light, and dead and live deciduous and coniferous trees do too.” – MS

“This hands-on exercise helped me to understand the interaction of electromagnetic radiation better because we had the chance to look at real results and also examples. I learned a lot.” – LC

“This activity helped me to understand how things may differ in a way we may not be able to understand at first glance. I also learned how to use Excel.” – BC

“…I learned about all the actual colors of things like leaves and flowers. This experiment was really enjoyable.” – IW

“This helped because after doing the hands-on activities and seeing them in the graph compared to everyone else, I saw and understood how light reflects and how the basics of remote sensing works.” – TN

“This hands-on exercise helped me to understand the interaction of electromagnetic radiation by showing me that it is used in everyday life by a lot of different careers. It was interested and showed me science is more than formulas.” – AM

This event was conducted on April 2, 3, 9 and 10 as part of AmericaView’s Earth Observation Day activities aimed at introducing teachers and students to remote sensing science and applications.

Introducing Laramie Junior High School Students to Remote Sensing Concepts and Applications

One hundred and fourteen students in Ron Whitman’s eight grade physical and seventh grade biological sciences classes (three class periods each on April 4^th and 5^th, 2012) learned how remotely sensed images are acquired in different regions of the electromagnetic radiation (EMR) and their uses for monitoring earth surface features such as trees, crops, bare ground, water, roads, buildings, etc.

Botany faculty member and WyomingView coordinator Ramesh Sivanpillai described the differences in the interaction of earth surface features with EMR, and how those interactions result in their appearances or colors.  Students learned the uses of images collected by satellites and airplanes for monitoring the effects of beetle attacks on pine trees, deforestation, crop growth, and changes in the surface areas of lakes and reservoirs.  Mr. Whitman commented that the presentation helped “students understand the use of different electromagnetic waves for practical applications.”

In the lab, students working in teams used ALTA ™ Spectrometers to measure spectral reflectance in 10 different regions of EMR.  Next, they calculated percent reflectance values, which were then plotted against wavelength to generate the spectral signature for each leaf.  

Analyses of these signatures led the students to conclude that the spectral signature of each leaf was distinct.  

Hands-on lab component for measuring and calculating “percent reflectance of the four types of leaves at different wavelengths, actively engaged the students the entire lab time” Mr. Whitman said.  Sivanpillai explained the differences in the spectral signatures of different earth surface features and remote sensing scientists rely on these signatures for mapping those features.

This educational outreach activity was conducted as part of AmericaView’s Earth Observation Day activities aimed at introducing teachers and students to remote sensing science and applications.