Nicholas Medina worked in the lab on organic matter stability in the UMBS DIRT Experiment.  He received his Master of Science degree for his work in 2016. Nicholas is now a Doctorate student in Dr. John Vandermeer's Lab at the University of Michigan.

Susan received her B.A. in Environmental Science from Columbia University in 2007. While there, she worked on a senior thesis project quantifying the impact of traffic on particulate air pollution around elementary schools. After graduation, she worked in environmental consulting and at Cornell University Cooperative Extension bringing urban ecology programs to New Yorkers. Her dissertation used field measurements, satellite data, and models to study how clouds influence forest light environments and photosynthesis so we can better represent land-atmosphere interactions in climate models. Susan finished her doctorate in 2016 and moved to a Post-doctoral position at Cornell.

Dr. Jasmine Crumsey conducted her dissertation research on the effects of earthworm communities on soil Carbon and Nitrogen cycling.  Her studies include an ecosystem scale survey, natural abundance and isotopically labeled mesocosm experiments (Worm Pail 1.0 and 2.0), and community/carbon compound characterization in the DIRT experiment.  After successfully defending her dissertation in 2014, Dr. Jasmine Crumsey went to Cornell for Post-Doctoral research with Dr. Jed Sparks.

Apolline joined the lab in July 2012 while completing her PhD from the University of Lorraine (France).  Her dissertation was in soil ecology on the impacts of liming on soil invertebrates.  Apolline studied the role of invertebrates in the degradation of isotopically labeled black carbon for the Black Carbon project at the UM Biological Station.  She started an Assistant Professor position at the University of Lorraine in the LSE (Laboratory of Soils and Environment, France) as a soil biologist specializing in invertebrates in early September 2013.

Tim Ludington joined the lab for the summer 2013 field season.  Prior to joining the lab Tim was a mechanic in the US Air Force and was a student in the Spring 2013 Ecology class where he studied soil invertebrate diversity across the Burn Chronosequence at the UM Biological Station.  Tim's duties in the lab included processing soils from the Burn Chronosequence, measuring soil respiration rates, and measuring tree diameters.  After graduating in 2014, Tim pursued his Master's degree at Bowling Green State University with Paul Moore.

General Patton joined the ranks of the Nadelhoffer Lab in Summer 2013 for a Research Experience for Undergraduates.  She built a chronosequence of Carbon accumulation in forest aboveground biomass and belowground to one meter.  The General is writing a manuscript with Dr. Luke to submit to the Canadian Journal of Forest Research.  She continued her studies at Illinois Wesleyan University after her time in the lab.

William Marshall joined the lab for summer 2013 as an ED-QUE2ST Research Experience for Undergraduates student. He worked on the Black Carbon project to measure temperature sensitivity of soil respiration across the Black Carbon treatments. After finishing his project in the lab, William Marshall continued as a Biology student at UM.

As a sophomore at the University of Michigan, Michelle assisted Jasmine Crumsey with her PhD project in the winter and spring of 2012. She processed soils from Jasmine's quantitatively harvested earthworm mesocosms.  After working in the lab, Michelle worked with Dr. Deborah Goldberg's lab to maintain marsh mesocosm experiment (a.k.a. Swamp Pot 2.0) at the UM Biological Station.  She currently works in Dr. Brad Cardinale's lab as an undergraduate assistant for an algal biofuels project.

Caleigh joined the lab as part of the Undergraduate Research Opportunity Program (UROP) from September 2012 through May 2013.  She sampled and processed soils and litterfall samples from the Burn Chronosequence at the UM Biological Station.  Caleigh investigated charcoal size and mass distribution across the chronosequence for her UROP project.  She continued her studies of Electrical Engineering after finishing in the lab.

Cristina joined the lab as part Undergraduate Research Opportunity Program (UROP). She investigated changes in leaf area and root mass across the Burn Chronosequence at the UM Biological Station (UMBS) for her UROP project.  Cristina continued pursuing her dual degree, B.S. in Spanish, and Earth & Environmental Science after her time in the lab. She worked for the National Park Service in Summer 2013.

Renee joined the lab in January 2013 as part of the Undergraduate Research Opportunity Program (UROP).  Her project investigated the effects of litterfall composition on macrofauna richness, diversity, and abundance across the Burn Chronosequence at the UM Biological Station (UMBS).  Renee's poster with UROP comrade rPad won a blue ribbon at the UROP symposium. Graduating in May 2014 with a Bachelor of Science in the Earth and Environmental Sciences, Renee has a strong background in the physical sciences. She has two minors, in both chemistry and geology, and this has greatly aided her forays into the study of the natural world. Past research experience includes medicinal nuclear chemistry and carbon and nitrogen cycling in forest environments at the University of Michigan, and she is currently researching mercury contamination through environmental isotope geochemistry.

Gabe joined the lab from the College of Wooster for a Research Experience for Undergraduates project in the Summer of 2012.  Working with Dr. Luke Nave, Gabe measured mycorrhizal colonization of roots in the Forest Accelerated Succession Experiment (FASET) at the UM Biological Station.

Nick joined the lab in Summer 2011 with his Ecology Class project.  His group investigated hyphal abundance and isotopic signatures in the Forest Accelerated Succession Experiment (FASET).  With Dr. Luke Nave, classmate Jules Cooch, and their coauthors, Nick published the results from his work in  “Nitrogen Uptake by Trees and Mycorrhizal Fungi in a Successional Northern Temperate Forest: Insights from Multiple Isotopic Methods" in Ecosystems: Volume 16, Issue 4 (2013). Nick continued to work with the lab in Summer 2012 as a Research Assistant.  His tasks included collecting species-specific root, sampling soils, and measuring diameters of canopy and subcanopy trees.  Following work in the lab Nick studied Maple tar spot fungi with Dr. Tim James at UM and graduated from UM in 2012.  Nick tutors math and science at Washtenaw Community College and tends bar at the Jolly Pumpkin in Ann Arbor.

Sterling Atkins joined the lab from Morehouse College as an ED-QUE2ST REU student.  With his mentor Dr. Jasmine Crumsey, he characterized earthworm communities across a gradient of leaf litter loading in the UM Biological Station DIRT experiment.  After completing his REU project, Sterling continued to study Biology with a focus on medicine.  He conducted research on liver cancer at the Unversity of Southern California School of Pharmacy in summer 2012 and Neuroscience & Opthamology at the University of California San Francisco Koret Vision in summer.  Graduating in 2013, Sterling continued MD/Ph.D studies.

Shams joined the lab as part of the Michigan Research Community (MRC) program in September 2011.  She assessed tree nitrogen allocation to leaves and roots with a stable isotope tracer in the Forest Accelerated Succession Experiment (FASET) at the UM Biological Station.  Shams continued with her Evolutionary Anthropology studies at UM after completing her MRC project.

Sarah Liao joined the lab in September 2010 as part of the Undergraduate Research Opportunity Program (UROP).  She examined changes in competition for N by canopy trees in the Forest Accelerated Succession Experiment (FASET).  Her work included measuring enrichment of foliage, bark, and wood as well as stem growth rates from tree cores to examine if the N cycle or tree growth was been perturbed by the girdling treatment.  After finishing with the lab, Sarah Liao continued her studies at UM and graduated December 2012 with a dual B.S. degree in Environmental Science (Program in the Environment) and Anthropology.  She earned her Master of Public Health degree from UM School of Public Health in May 2014 with a Toxicology specialization from the Department of Environmental Health Sciences.  Sarah was a Research Assistant in the Loch-Caruso Reproductive Toxicology Lab in the Department of Environmental Health Sciences and was a Toxicology Intern at ToxServices, a toxicology risk assessment consulting firm.

Erin Skallerup joined the lab in September 2010 as part of the Undergraduate Research Opportunity Program (UROP).  She examined changes roots in the UM Biological Station DIRT experiment.  After finishing with the lab in 2011, Erin continued her studies in Ecology & Evolutionary Biology and Education at UM.  She graduated in May 2012 and attained her Master's of Education from Houston Baptist University in 2013.

Zach joined the lab as a research technician in August 2009.  Prior to joining the lab, Zach worked as a teaching assistant at the UM Biological Station, worked in a California Winery, worked for California Light and Power cruising power corridors, and graduated from UM with an Environmental Science B.S.  His tasks in the lab included soil processing and managing the soil incubations from the 5-year UMBS DIRT sampling.  After his time in the lab, Zach worked as a naturalist at the Leslie Science Center; earned his Professional Certification in Applied Behavioral Analysis at Utah State University; trained and worked with Steve Martin’s Natural Encounters, Inc. as an animal trainer in free-flighted bird shows at Disney’s Animal Kingdom in Orlando, Florida; completed a Graduate Certificate in Nonprofit Management at EMU; and interned at the Huron River Watershed Council.

Derek Ager worked with Bryce Bredell and Jasmine Crumsey in summer 2009 as a member of the A-Team.  They investigated earthworm community composition and diet using natural abundance values for C and N stable isotopes. After his time with the lab, Derek completed his Ecology & Evolutionary Biology Bachelor of Science Degree at UM.  He worked with Dr. Deborah Goldberg's marsh mesocosm experiment and at the US EPA's National Vehicle and Fuel Emissions Laboratory.  Derek then pursued a Master's of Public Health at UM focusing on environmental policy, air and water quality management and analysis, and occupational and environmental exposure assessment.  He moved to the a ‎Physical Scientist position at the EPA's Great Lakes National Program Office in Chicago.

Rahul was an Ecology & Evolutionary Biology and a Program in the Environment at UM.  He spent two summers at the UM Biological Station where he took classes and worked as a field technician Nadelhoffer Lab. His tasks included ion exchange resin preparation, lysimeter maintenance, and soil respiration measurements.  After graduating in 2010, Rahul continued to a Master of Public Health program at Emory University where he studied environmental health and epidemiology. Rahul worked as a healthcare data analyst for Acumen, LLC from 2012 to 2014 in the San Francisco Bay Area.  He continued in public health by pursuing his doctorate in fall 2014 from North Carolina at Chapel Hill where he studies the intersection of air pollution, genomics, and cardiovascular health.

Corey worked in the lab as a field technician in Summer 2008.  She helped to measure tree diameters and install minirhizotron tubes in the Forest Accelerated Succession Experiment (FASET).  After finishing work in the lab, Corey graduated from the Program in the Environment at UM and her Master's in Fisheries Managment with Dr. Dan Hayes at Michigan State University.  She continued her Fisheries studies at MSU for her doctorate.

Amanda joined the lab as part of the Undergraduate Research Opportunity Program (UROP) at UM.  She analyzed changes in soil Carbon and Nitrogen stocks after 5-years of treatments in the UM DIRT project.  Amanda graduated from UM in 2013 with a Pre-Pharmacy degree.  She continued to pursue her doctorate at the Wayne State University Pharmacy School.

Kelly worked in the lab her sophomore year as part of the Undergraduate Research Opportunity Program (UROP) from September 2009 to May 2010.  For her project, Kelly studied changes in the Carbon and Nitrogen cycles as indicated by shifts in Nitrogen availability, and shifts in foliar and fungal stable isotope natural abundance associated with the Forest Accelerated Succession Experiment (FASET) at the UM Biological Station.  Kelly studied at the UM Biological Station in 2010, and graduated with a B.S. in Ecology & Evolutionary Biology in 2012. After graduating, she interned at the U.S. Geological Survey office in Ann Arbor working for Kevin Keeler. She concurrently assisted Dr. Daniel Allen, a postdoctoral fellow collaborating with Dr. Brad Cardinale, in July. She worked at Michigan Mott Children's Hospital from late 2012 through June 2014 before attending medical school at Michigan State University.

Deborah Hudleston earned her Master's in the lab.  She was co-advised by Drs. Knute Nadelhoffer and Don Zak. Her research examined how elevated atmospheric Carbon Dioxide and tropospheric Ozone alter belowground plant litter biochemistry and how soil microbial community composition influences ecosystem nitrogen availability. Her work includes measuring the pools of chitin in soil; measuring the activity of chitin degrading enzymes; genetically ascertaining the composition of the microbial community that has the ability to degrade chitin, and also the composition of those that are actively producing chitinolytic enzymes; and isotopically labelling fungal hyphae to trace the flow of Nitrogen from chitin to heterotrophic decomposers and inorganic N. After completing her degree, Deborah returned to her hometown of Minneapolis works at the Universiy of Minnesota as a Knowledge Transfer Director/Science Writer in the National Center for Earth-surface Dynamics.

In the lab Matt was a year-round lysimeter sample collector and processor.

Matt is currently a graduate student in the University of Vermont's Field Naturalist / Ecological Planning (FNEP) Masters Program. Project work is in collaboration with Audubon New York and focuses on how different forestry treatments affect habitats used by indicator bird species in the Northern Forest Avifauna Biome.

Prior Project Coordinator with the Burt Lake (Cheboiganing) Band of Ottawa & Chippewa Indians documenting native Ottawa/Anishinaabemowin language and Traditional Ecological Knowledge keepers.

Served as Teaching Assistant at UMBS for field courses including: General Ecology, Wetland Ecology, Ethnobotany, Introduction to Natural Sciences, and Biology of Insects.

Worked at Research Technician for various research projects studying elevated carbon dioxide under Dr. Don Zac, Dr. Nancy Tuchman and numerous graduate students.

Studied Horticulture and Landscape Architecture at the University of Applied Sciences, Erfurt, Germany. 1999-2000.

B.S. in Environmental Sciences and Natural History Writing with emphasis on "Agriculture in the Age of Ecology" from the University of Michigan, 1998.

Participant in the 2nd Natural History Writer Project (NHWP), fall semester 1996 at UMBS.

Studied at the Instituto Uruguay, Barcelona, Spain, 1993-94.

Dr. Ryan Kenny grew up in Saginaw, MI and while majoring in biology at the University of Michigan he worked in the Nadelhoffer Lab from 2005 to 2007. His duties in the lab included acid washing/prepping glassware and archiving samples from the DIRT project. After graduation from the University of Michigan, Kenny left the Nadelhoffer Lab to work for Dow/Wolff Cellulosics in Midland, MI from 2007 to 2010. While at Dow he worked as a research technician working on R&D projects involving non-active pharmaceutical ingredients and their desired properties in drug tablet formulations. In 2010 Kenny moved to Las Vegas, NV to attend medical school at Touro University Nevada School of Osteopathic Medicine. He will graduate from medical school in June of 2014 and he plans to begin his residency in emergency medicine in July of 2014 back in Michigan.

In his free time, Kenny enjoys road cycling and racing. He is also an avid outdoor photographer, which gives him an excuse to, as Muir would say, "break clear away, once in awhile, and climb a mountain or spend a week in the woods."

Herschel joined the lab for his Research Experience for Undergraduates (REU) project at the UM 2006. He assessed soil organic matter content and enzyme activities in the UMBS DIRT plots. After finishing his REU work, Herschel continued his Biology degree at Westminster University of Missouri and currently works for Stryker Corp. a biomedical supply company.

John Keeton worked in the Nadelhoffer lab in 2005 and 2006.   He started as a lab assistant before conducting an independent research project. John's research involved analysing UMBS DIRT soils for C and N to assess treatment affects following one year of manipulation. John graduated with a Biology degree in Spring 2006 and his Doctor of Dental Science from the UM School of Dentistry.  He is currently an dentist with the US Army in Fort Drum, New York.

Mark Westbrock joined the Nadelhoffer lab after completing his Master of Science degree at Wake Forest University. Prior to joining the lab, Mark conducted bird censuses across the globe including at the UM Biological Station and on the Galapagos Islands. His chief responsibilities in the lab were to manage the incubations of UMBS DIRT 2005 soil microcosms and to sort fine roots.  After his time in the lab, Mark enrolled in a solar power installer program at San Juan College in New Mexico.  He is currently the Las Cruces Field Manager at Positive Energy, Inc.

Pat earned her M.S with Dr. John Aber at the University of New Hampshire, having been inspired to study forest soil-plant nutrient dynamics by my Texas A&M employer and mentor, Dr. Cal Meier. After earning her Masters, she worked for the Harvard Forest on several long-term projects, primarily soil C and N dynamics in the Chronic N Addition and DIRT projects. In 1995 she began working for Knute at the Marine Biological Laboratory's Ecosystems Center in Woods Hole, MA; and was the Harvard Forest DIRT project technician from 1997 until 2004, when Knute brought me to U of M to help install the UMBS DIRT plots with Jim Le Moine. We dug trenches, installed mini-rhizotron tubes, inventoried trees, invented lysimeters (for which we acid-washed marbles), measured gas flux, incubated soils in the lab, collected many bags of litterfall, and analyzed our data while enjoying the seasons at the Biostation.  Pat left the lab in 2006 and worked with Dr. Don Zak as an analytical chemist where she was responsible for segmented flow analyses, elemental analysis-mass spectrometry, gas chromatograph mass spectrometry, and inductively coupled plasma emission mass spectrometry.  She also maintained the treatments for the Michigan Gradient Study.  Pat left the Zak lab in 2012 and currently develops and coordinates programs for two local non-profit organizations: the Ann Arbor Friends Meeting House and the Ark.

Suzanne worked with Knute at the Marine Biological Laboratory (Woods Hole, Mass.) prior to moving to Ann Arbor. In the summers, Suzanne worked on the Arctic Research Program at Toolik Lake with Dr.s George Kling and Knute Nadelhoffer. She was the senior research technician on the project and was responsible for the day-to-day operations of the field and laboratory collections and analyses. Suzanne left the lab in 2005 and currently lives in Maine.