Haldre Rogers, PhD, Project Director, Iowa State University. I became interested in the impacts of bird loss on forest and human communities after I moved to Guam in 2002 to work on the Brown Treesnake Project. In Guam, my job was to develop and coordinate the United States Geological Survey's Brown Treesnake Rapid Response Team. This position included frequent trips to the Northern Mariana Islands of Saipan, Tinian and Rota to determine whether the snake had spread to these locations. Through conversations with local citizens and countless hours performing night searches for snakes on Guam and these other islands, I was struck by the differences between the forests on Guam and on islands with birds. Guam's forests were silent due to the loss of birds and they appeared to support much higher densities of spiders, butterflies, and praying mantids in comparison to Tinian, Saipan and Rota. I wondered what other, perhaps more subtle changes were happening in the forest and decided to go to graduate school to pursue this line of research. The EBL project began as my PhD project while at the University of Washington, and has expanded from there. Currently, I am an Assistant Professor at Iowa State University. When not in the jungle of the Marianas or on a plane somewhere over the Pacific, I can be found playing frisbee, mountain biking, adventure racing, trail running, or eating chocolate.

Ross Miller, co-Project Investigator, University of Guam.  I am a professor of Entomology at the University of Guam, where my laboratory assists in the Ecology of Bird Loss Project, particularly with insects of the Marianas. I'm originally from Fort Collins, Colorado. I received my Ph.D from Washington State University's Department of Entomology, MS in Biology from the University of Houston, and BS in Zoology from Brigham Young University.

Amy Dunham, co-Project Investigator, Rice University.  I am  an assistant professor in the Ecology and Evolutionary Biology department at Rice University.

My research focuses on behavioral, population, and community ecology and is often applied to conservation issues in tropical rainforests.

Joshua J. Tewksbury, co-Project Investigator, University of Washington.  I am a conservation biologist and an evolutionary ecologist. Much of my work focuses on the importance of interactions between species (fungus and plants, animals and plants, animals and fungus), and the conservation value of these interactions. I use this interest to probe questions ranging from the roots of spices to the impacts of climate change and the future of food security. On the EBL Project, my interests are in the importance of direct and indirect mutualisms in natural systems, and the consequences that we face when these interactions are lost from ecosystems. Birds serve a number of functions in forest and agricultural systems, but we are seldom able to quantify these functions, and we have only a limited understanding of the importance of birds in natural systems.

Janneke Hille Ris Lambers, co-Project Investigator, University of Washington. I received my Ph.D. from Duke University in 2001, where I worked under the guidance of Jim Clark.  While at Duke, my field work took me to the Coweeta Hydrologic Laboratory in western North Carolina (an LTER site), where I studied seed dispersal, seed banking and density-dependent mortality for co-occurring temperate tree species. I then spent three years as a postdoc at the University of Minnesota, working with David Tilman at the Cedar Creek Natural History Area (another LTER site). There, I worked on the diversity-productivity relationship, the effects of global change on seed production, and the implications of recruitment limitation for mid-Western prairies.  In a subsequent postdoc at University of California, Santa Barbara (working with Jonathan Levine), I focused on the factors that allowed Mediterranean annual grasses to dominate over the diverse California annual grasses and forbs. I arrived at University of Washington in 2006.

My research touches on two fundamental questions in community ecology: 1) how do so many plant species, all competing for the same handful of limiting resources, coexist? and 2) how will global change (climate change, invasive species, nitrogen deposition, etc) alter the structure and function of plant communities? I approach questions of interest with observational studies, manipulative experiments, and statistical modeling, and have worked in a variety of habitats (North Carolina, Minnesota, California, Washington).

EBL Postdoctoral Researchers

Evan Fricke, Iowa State University.  My interests are in community ecology, evolutionary ecology, and conservation. My work combines field experiments and quantitative models to understand the maintenance of biological diversity and predict species responses to global change. I tackle these interests through the lens of seed dispersal by studying the nature of the seed dispersal mutualism, its influence on species coexistence, and the consequences of its disruption. The long-term goals of my work are to provide empirical and conceptual advances that inform effective conservation of ecological interactions and ecosystem processes.

Iowa-based EBL Members

Courtenay Ray, Lab Manager, Iowa State University. I first worked with EBL as a field crew member in 2009 and rejoined in 2016 after finishing my master’s with Ingrid Parker at UC Santa Cruz. My research interests include interspecific interactions, the impacts of invasive species, and the ecology and flora of the tropical alpine. 

Katie Hamilton. Undergraduate at Iowa State University. Katie is working on a project collecting and digitizing images from WWII showing vegetation and comparing them with present-day images in order to identify patterns of vegetation change over time. 

Marianas-based EBL Field Crew

Tony Castro, Field Crew. B.A. in Biology, University of Hawaii at Hilo.  I’ve been in EBL for over two years now and enjoying every bit of it from destroying lots of shoes on sharp karst, loosing lots of blood from mosquitoes, the lovely stinging sensations from boonie bees and snap-jaw ants, to having my face covered in spider webs.

Glorya Chlupsa, I am from Guam and currently on my last year studying biology at the University of Guam. I am interested in wildlife science and how species interact within their communities. Outside of fieldwork, my hobbies include practicing Filipino stick fighting called Arnis and learning about different cultures and languages. 

Allyson Earl, B.S in Environmental Horticulture and Urban Forestry, University of California Davis. I am originally from California but have been traipsing around the tropics ever since I got my first chance in Costa Rica. My research interests include species interactions and how to apply these concepts to large scale conservation measures. My hobbies consist of obsessively looking for native fruits, transplanting baby seedlings in the nursery and in the jungle, and spitting some mean lyrics to and from field sites.  When I am not out in the jungle for work, I am out in the jungle exploring, taking pictures and writing about it in my blog.
Forest Educators
We have supported ten teachers through the National Science Foundation Research Experience for Teachers program. These teachers worked with the field crew during the summer and developed curriculum for use during the school year.

Current Educators
Daniel Pangelinan: Daniel is a Chamoru language and culture teacher at Simon Sanchez High School on Guam, and an EBL Research Experience for Teachers (RET) participant from Summer 2015 to Spring 2016. He has been teaching for 6 years and is passionate about Chamoru language and cultural preservation. During his EBL summer experience, Dan developed a freely-accessible, Chamoru-language local plant resource for educators. He is continuing to collect information on the local names, uses and lore around plant species in the Mariana Islands, to incorporate it into the website ( ).

Roque Indalecio: Roque is a science teacher at Hopwood Junior High on Saipan, and an EBL Research Experience for Teachers (RET) participant from Summer 2015 to Spring 2016. Roque joined the EBL Research Experience for Teachers program because he wanted to learn more about Marianas ecology and bring more local ecosystem science into his classroom. During his EBL summer experience, Roque developed or improved lesson plans for educators to use in or outside the classroom, and created a new website for all of the lesson plans created by current and former RET participants (

Previous educators
  • Ben Seman- Hopwood Jr. High School, Saipan
  • Greg Ecle- Southern High School, Guam
  • Dan Ho- Southern High School, Guam (currently in grad school)
  • Valerie Atalig- Rota Jr/Sr High School, Rota (currently teaching elementary school on Guam)
  • Annette Pladavega-Kagman High School, Saipan (currently CNMI Science Curriculum Coordinator)
  • Mary Garvilles- Simon Sanchez High School, Guam
  • Sabina Perez-  Simon Sanchez High School, Guam
  • Michael Subbert- Guam High School, Guam (now retired)

Former EBL Members

Joma Santos, Technician. Currently an undergraduate at the University of Guam. 
Christa Shen, Intern. Currently a field biologist with the ISLA Center for Sustainability at University of Guam. 
Renata Diaz, Intern. Currently a technician at Washington University in St. Louis. 
James Lucas, Intern. Currently a graduate student at Washington University in St. Louis.
John Bender, Avian Research Biologist. Currently a biologist at the Lincoln Park Zoo, Chicago. 
Amanda Santos, Field technician. Currently an undergraduate at Oregon State University
Kloe Borja, STEP-UP intern. Currently a senior at Kagman High School. 
Erin McCann, Field Crew Leader. Currently a crew leader with the Guam Plant Extinction Prevention Program. 
Miranda Salsbery, Undergraduate researcher. Currently a senior at Iowa State University. 
Brittany Clark, Undergraduate researcher. Currently a grad student at University of Georgia.

Elizabeth Wandrag, Postdoctoral Researcher. Currently a Postdoc with Dr. Richard Duncan at University of Canberra, Australia. 
Nadya Muchoney. Field technician. Currently a PhD student at University of Nevada, Reno.
Timothy Harvey-Samuel. Field technician. Currently a Postdoc with Prof. Luke Alphey at The Pirbright Institute, UK
Marlyn Naputi, REU. 
Macy Ricketts, REU. Currently a senior at Montana Tech. 
Evgenia Dubman, Research Coordinator. 
Stephen Johnson, Intern. 
Britney Zell, Intern. 

Veronica Kuhn- Senior Thesis Student, Rice University. Currently a graduate student at Virginia Tech.
Jeff Brown- Senior Thesis Student, Rice University. Currently a graduate student at Rutgers University.
Alexandra Kerr - LSAMP researcher.
Allison Schaich - Rice University REU student
Stephen Pillman - University of Guam REU student

Jasmin Silva- REU. Currently employed by Rice University
Alexandra Kerr- REU. Currently an urban farmer in NYC!
Micah Freedman- Intern. Currently a graduate student at UC Davis.
Kyle Ngiratregd- Field technician. Currently a technician at the Guam National Wildlife Refuge.
Kelsey Wooddell- Undergrad research volunteer, Rice University. Currently in the Peace Corps.

Chris Roy- completed his MS at Rice University, currently an environmental consultant.
Monika Egerer- currently a graduate student at UC Santa Cruz.
Tor Shimizu - University of Washington

Rachel Volsteadt, Field Technician, currently works for USDA Wildlife Services on Brown Treesnake Control.
Megan Volsteadt, Field Technician, currently an undergraduate at the University of Guam
Otton Mendiola, Field Technician, currently a farmer and fisherman on Rota.
Kaitlin Mattos, REU 2009 and Crew Leader 2010-2011; currently a graduate student at University of Colorado at Boulder
Isaac Chellman, Crew Leader 2010-2011, currently a Biologist in Yosemite/King's Canyon
Maggie Chan, Intern 2011, currently a graduate student at University of Alaska- Fairbanks
Jonnie Dunne, Intern 2011, currently a graduate student at University of Washington
Ethan Linck, REU 2011, currently a graduate student at University of Washington

Eric Cook, Plant Propagation Specialist 2008-2010
Shahla Farzan, Intern 2010; currently a graduate student with Dr. Louie Yang at UC-Davis.
Amber Goguen, Intern 2010; currently a graduate student at Michigan State University
Summer Kemp-Jennings, REU 2010, currently a graduate student at University of Washington
Eleanor Caves, REU 2010; currently a graduate student at Duke University

Bridget Bradshaw, Volunteer 2009; currently a roving field biologist
Courtenay Ray, Intern 2009; Finished MA with Ingrid Parker at UC Santa Cruz. Currently lab manager for EBL.
Eliza Hooshiar, Crew Leader 2009-2010
Emily Schultz, Intern 2009-2010; currently a graduate student with Tom Miller at Rice University
Jenny Howard, Intern 2009-2010; currently a graduate student at Wake Forest University
Julie Duay, Field Technician 2009-2010; completed her MS at Univ of Guam; currently a Biologist with the Guam Department of Aquatic and Wildlife Resources
Maia Raymundo, Field Technician; completed her MS at Univ of Guam. Currently an environmental consultant.
Cat Adams, REU 2009; currently a PhD student at UC-Berkeley
Anthony Ritter
Kaylyn Knaeble
Teresa Hecita
Leanne Obra, Field Technician 2009; currently a Natural Resources Specialist for Anderson Air Force Base on Guam.
Mitch Piper, Intern 2009; currently an electrician. 

Nash Turley, Field Technician 2008-2009; finished his PhD at University of Toronto, now a Post-Doc at Michigan State University.
Theresa Feeley-Summerl, Field Assistant 2008.

Tara Kenny, Field Assistant 2007; currently in medical school.