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Climate Change Global Change Interfaces of Global Change IGEP Research Student Spotlight

Cordie Diggins’ research featured in Nature Conservancy Magazine

In West Virginia, conservationists have set out to revive heavily logged red spruce forests in hopes of saving an endangered flying squirrel from extinction. Cordie Diggins, a Virginia Tech doctoral student and an IGC Fellow, is featured in the following Nature Conservancy Magazine article.

Flying High

“Craig Stihler holds the squirming rodent in his gloved hands. “It’s a biter,” warns the bespectacled biologist as he handles the animal using only calm, deliberate movements. With its impossibly large eyes built for seeing in the dark, the West Virginia northern flying squirrel looks and acts like an agitated Muppet.

And rightfully so: A few minutes ago, this young female specimen was napping in one of hundreds of nest boxes that Stihler and other researchers installed throughout the Monongahela National Forest. But now she’s being weighed, ear-tagged and measured by a small group of scientists.

Cordie Diggins
Cordie Diggins

One of them—Virginia Tech doctoral student Corinne Diggins—blows in the squirrel’s face, trying to stop it from writhing in Stihler’s hand long enough for her to slip a radio collar around its neck. The animal finally holds still after a Forest Service technician gamely offers the finger of his glove for the squirrel to gnaw on, which allows Diggins to crimp the collar in place. Once she is done, Stihler releases the squirrel onto a tree trunk. It darts up into the canopy, then freezes in place, waiting for the group to leave.

A biologist with the West Virginia Division of Natural Resources, Stihler has held more West Virginia northern flying squirrels than just about anyone. He has been studying the animals since 1985, when this subspecies of the northern flying squirrel was listed as endangered under the federal Endangered Species Act. At the time, scientists could find the squirrel at only a handful of sites in West Virginia, and its only known habitat had been reduced to a small fraction of its historical footprint in the area. To make things worse, not much was known about the animal—including what it ate, where it slept and how it differed from its more common cousin, the northern flying squirrel, which ranges across North America. With so few of the feisty, nocturnal animals to study, figuring out why the squirrel had declined—let alone how to save it—was going to require some sleuthing.

the team capture a flying squirrel in a nest box,  measure it, radio tag it, and set it free.
The team captured a flying squirrel in a nest box, measured it, radio tagged it, and set it free.

Only three decades later, the outlook for the flying squirrel’s survival has changed dramatically. The species is no longer endangered and was delisted in 2013—a remarkable feat, given how few squirrels remained and how little was known about them. The story of the squirrel’s turnaround isn’t about saving just one species; it’s the story of the restoration of an entire landscape that had become unbalanced by more than a century of logging and mining.”

Read the full story here: http://shar.es/Tn1Ml

Thanks to Patrick Cavan Brown for use of his photographs.
 
Categories
October 2014 Newsletter Uncategorized

New Course- Biology 6064: Freshwaters in the Anthropocene

BIOL 6064: Spring Semester 2015
2 credits- M/W 9:05-9:55am

Dr. Cayelan Carey is teaching a new special topics graduate course in the spring, ‘Freshwaters in the Anthropocene,’ which will be centered on reading discussions of research papers and policy-related documents (e.g., the EU Water Framework Directive), as well as a few in-class modeling exercises and lectures.  The overall goal of the course is to examine the effects and interactions of altered climate, eutrophication, invasive species, and unsustainable withdrawal on ecosystem function in lakes and streams, as well as the implications for future human use.

The capstone of the course will be writing an independent research proposal on a freshwater/Anthropocene-themed topic of the student’s choice and debating it in an in-class review panel.  Dr. Carey hopes that these proposals will serve as a seed for future NSF GFRP, EPA Star, or NSF DDIG applications.

See the flyer for more information

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New Courses News

New interdisciplinary course: Systems Conservation

NEW GRADUATE COURSE FOR SPRING 2015

FIW 5984 : Systems Conservation of Animal Populations

Instructor: Leandro Castello

Systems Conservation of Animal Populations adopts an integrative approach to understanding problems of sustainable management and conservation of animals in natural landscapes. The course is founded on the idea that effective conservation of animal populations can only be achieved through consideration and management of broader, multifaceted factors related to natural ecosystems and human societies. The course seeks to help students conceptualize and articulate their own problems of study within an interdisciplinary framework.

The course introduces students to approaches to understanding biological conservation problems as integrated systems by reviewing the literature of Systems Ecology and Social-Ecological Systems. It reviews key concepts and papers on ecosystem-based management, resource economics, user participation, policy, and governance. Attention is paid to the diversity of social-ecological settings across the globe and the role of rural communities in animal management and conservation. The course concludes with presentations and discussions led by the students of research projects analyzing animal conservations problems from a systems perspective.

Classes are based on discussions of readings led jointly by students and instructor.

See attached file for more details, or contact

Leandro Castello (leandro@vt.edu)
148 Cheatham Hall
Phone: 540-231-5046

 

Categories
Global Change New Courses News

New Course: Theories of Globalization

Economies and Ecologies of Planetary Change

PSCI 6204/ASPT 6014
Spring Semester
Thursdays, 5:00-8:00 p.m.

This 3-credit course will theorize globalization from an inter-disciplinary perspective, with special focus on the relationship between economy and ecology at the planetary scale.  How has the globalization of industrial capitalism over the past two and half centuries impacted our planet and how are we to understand the political, cultural, and social dimensions of this ongoing transformation?  What roles do humans play in shaping non-human life on the planet, and vice versa?

The topics we will examine include the following:

  • Globalization theory
  • Biopolitics and late-capitalism
  • Planetary urbanization
  • Eco-critique and the anthropocene
  • The politics of resource extraction
  • Extincting and global climate change
  • Fragile and resurgent ecologies

Students will write a research paper based on the seminar readings and discussions.

The course will be taught by Dr. Rohan Kalyan.  Kalyan’s research examines the intersections of globalization and urbanization in the developing world. His work integrates political economy, urban studies, visual ethnography, and post-colonial theory; and incorporates documentary filmmaking.

Download the flyer

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Uncategorized

Jacob Barney’s research in PNAS: New pasture plants intensify risk of invasive species

From VT News

In quest for greener pastures, don’t plant invasive species, researchers say

BLACKSBURG, December 2, 2014 – Few agribusinesses or governments regulate the types of plants that farmers use in their pastures to feed their livestock, according to an international team of researchers that includes one plant scientist from Virginia Tech. The problem is most of these so-called pasture plants are invasive weeds.

In a Proceedings of the National Academy of Sciences study this month, the scientists recommended tighter regulations, including a fee for damage to surrounding areas, evaluation of weed risk to the environment, a list of prohibited species based on this risk, and closer monitoring and control of natural area damage.

The findings were also highlighted Nov. 12 in Nature.

The research team — led by scientists at the Australian National University — surveyed agribusinesses in eight countries on six different continents to see what species are planted in pastures, what traits are selected for, and what measures are taken to guard against invasion.

In response to human population boom and increased global food demand, some farmers resort to planting aggressive, fast-growing species in order to increase their herd size without breaking the bank.

This extensive growth allows for greater cattle forage, but has a long global history of escaping the paddocks and invading natural areas, where they squelch out biodiversity, suck up available water resources, enhance fire cycles, disrupt the behavior patterns of pollinators, and alter nutrient and trophic levels.

Dr. Jacob Barney
Dr. Jacob Barney

In turn, about $34 billion per year is spent annually in the United States on invasive weed management, said Jacob Barney, an assistant professor of plant pathology, physiology, and weed science in the College of Agriculture and Life SciencesFralin Life Science Instituteaffiliate, and third author of the study.

“Meat consumption is increasing globally, which will increase animal production, and thus increase demand for forages improved for forage quality, productivity, and tolerance of poor growing conditions — all traits that may facilitate invasion into the natural ecosystem, making the invasion problem worse,” said Barney, who is also a core faculty member in Virginia Tech’s Interfaces of Global Change program.

“The weed problem faced by the USA and other countries is already enormous,” said Don Driscoll, an associate professor at the Australian National University and lead author. “It makes sense to have new regulations that discourage agribusinesses from releasing more aggressive varieties of these existing weeds. A polluter-pays system applied across the livestock and feed industry would be an important disincentive that could help to solve this escalating weed problem.”

Don A. Driscoll, Jane A. Catford, Jacob N. Barney, Philip E. Hulme, Inderjit, Tara G. Martin, Aníbal Pauchard, Petr Pyšek, David M. Richardson, Sophie Riley, and Vernon Visser. New pasture plants intensify invasive species risk PNAS 2014doi:10.1073/pnas.1409347111

Story by Lindsay Key