OOS 41 - Garlic Mustard: A Model System for Understanding Invasions in a Changing World

Friday, August 12, 2016: 8:00 AM-11:30 AM
Grand Floridian Blrm H, Ft Lauderdale Convention Center
Kristina Stinson
Susan Kalisz and Dustin F. Haines
Dustin Haines
Alliaria petiolata, or garlic mustard, is a Eurasian plant that is rapidly invading forests in the United States and Canada, leaving land managers and stakeholders seeking guidance from the scientific community in order to understand its impacts on native ecosystems and prioritize management strategies. Garlic mustard is thought to be a major driver of ecosystem and community change through its interactions with soil biota. It is known to interfere with native plants by disrupting mycorrhizal mutualisms, leaving legacy effects that can persist for years after invasion. This invader is also highly competitive due to its accelerated spring phenology, high reproductive output, high plasticity, and low preference as forage by generalist herbivores. Its interactions with native and nonnative species, and its implications for forest ecosystems can be complex. Several questions remain about the role of garlic mustard in present and future Northeastern forests, and a synthesis of ecological impacts and management recommendations is imperative. The goals of this session are to synthesize the current state of knowledge and discuss the role of garlic mustard as a model species for understanding invasion biology and its impacts. We will feature recent work in a range of interdisciplinary fields: ecology, chemical biology, evolutionary genetics, plant-soil feedbacks, community and ecosystem impacts, multitrophic interactions, climate change interactions and conservation. We also expect this session to identify knowledge gaps and initiate discussions about future collaborative work and transitions between research and adaptive management approaches. The topics of this session will be of interest to a broad range of ecologists, land managers, conservation scientists, and restoration practitioners. It will also directly address the ESA 2016 theme, as garlic mustard (and other invasive plants) has the potential to modify ecosystems and create novel species assemblages, and the distribution, severity and speed of these invasions are modified by anthropogenic changes in habitats and climate.
8:00 AM
 A tale of an infamous invasive plant: A review of 150 year invasion history and associated research on garlic mustard
Songlin Fei, Purdue University; Teresa L. Clark, Purdue University; Jonathan Knott, Purdue University
8:20 AM
 Interactive effects of nonnative plants, deer and earthworms on forest plant recruitment
Andrea Dávalos, Cornell University; Victoria Nuzzo, Natural Area Consultants; Bernd Blossey, Cornell University
8:40 AM
 Effects of an invasive plant on native and nonnative butterflies
Samantha L. Davis, Wright State University; Don Cipollini, Wright State University
9:00 AM
 The demographic effects of invasion: Modeling the impacts of garlic mustard on vital rates and population dynamics of native plants
Susan Kalisz, University of Tennessee; Nathan Brouwer, University of PIttsburgh; Rachel B. Spigler, Temple University
9:20 AM
 Physiological mechanisms behind Alliaria petiolata success and native decline: Deer increase invader photosynthetic rates
J. Mason Heberling, University of Tennessee; Susan Kalisz, University of Tennessee
9:40 AM
9:50 AM
 Long-term and source-sink demographics of invasion: Garlic mustard at Harvard Forest
Laura M. S. Hancock, UMass Amherst; Julia A. Wheeler, University of Massachusetts; Kristina A. Stinson, Harvard University
10:10 AM
 Local adaptations during invasion: Effects of growth and maternal habitat on fitness traits in garlic mustard
Kristina A. Stinson, University of Massachusetts; Lauren Carley, Duke University; Kathleen Donohue, Duke University
10:30 AM
 Phenology and demography of garlic mustard: Implications for population growth and range shifts with climate change
Jenica M. Allen, University of New Hampshire; Sarah T. Bois, Linda Loring Nature Foundation; Cory Merow, University of Connecticut; Yingying Xie, University of Connecticut; John A. Silander, University of Connecticut
10:50 AM
 Fitness consequences of an intercontinental range expansion: Ecological insights from the Global Garlic Mustard Field Survey
Robert I. Colautti, Queen's University; Madalin Parepa, University of Tuebingen; Oliver Bossdorf, University of Tübingen; The GGMFS Consortium *, Various Affiliations
11:10 AM
 Eco-evolutionary feedbacks in the invasive plant Alliaria petiolata
Jeffrey A. Evans, Dartmouth College; Richard Lankau, University of Wisconsin; Adam S. Davis, University of Illinois, Urbana-Champaign; S. Raghu, USDA-ARS Australian Biological Control Laboratory; Douglas A. Landis, Michigan State University