Printed Program (PDF) - Ecological Society of America

8 am-11:30 am
9:00 AM OOS 52-4 Beard, KH 1 , A Kulmatiski 1 and M
Mazzacavallo 2 , (1)Utah State University, (2)University
of Alaska Anchorage. The two-layer hypothesis is dead:
Long live the two-layer hypothesis.
9:20 AM OOS 52-5 Ratajczak, Z, J Nippert and TW Ocheltree,
Kansas State University. Bi-stability, compromised
resilience, and state-shift indicators: Abrupt shift of
tallgrass prairie to degraded shrubland.
9:40 AM Break
9:50 AM OOS 52-6 Shiflett, SA 1 , JC Zinnert 2 and DR Young 1 , (1)
Virginia Commonwealth University, (2)US Army Corps
of Engineers. Linking hydraulic properties, canopy
structure, and light use to shrub expansion.
10:10 AM OOS 52-7 Gabler, CA and E Siemann, Rice University.
How ontogenetic niche shifts in the moisture tolerances
of an exotic tree influence its invasion dynamics.
10:30 AM OOS 52-8 D’Odorico, P 1 , Y He 1 , S DeWekker 1 , J
Fuentes 2 , SL Collins 3 , WT Pockman 3 and ME Litvak 3 ,
(1)University of Virginia, (2)Pennsylvania State University,
(3)University of New Mexico. Alternative stable states
of grassland and woodland introduced by positive
feedbacks between vegetation and microclimate.
10:50 AM OOS 52-9 Holdo, RM, University of Missouri. Revisiting
the two-layer hypothesis: theoretical insights on the
coexistence of alternative functional rooting strategies
across rainfall and edaphic gradients.
11:10 AM OOS 52-10 Williams, JR, Alabama A&M University. Effect
of high-intensity directed fire in different seasons on
survival and sprouting of three invasive species: Lonicera
spp. (bush honeysuckle), Paulownia tomentosa (Royal
paulownia), and ligustrum sinense (Chinese privet).
9:40 AM Break
9:50 AM OOS 53-6 Fork, ML 1 and J Heffernan 2 , (1)Florida
International University, (2)Duke University. Direct
and indirect effects of organic matter sources on
denitrification in Florida rivers.
10:10 AM OOS 53-7 Sadro, S and CE Nelson, University of
California, Santa Barbara. Dissolved organic matter
dynamics in high-elevation lakes: Effects on bacterial
ecology and ecosystem metabolism.
10:30 AM OOS 53-8 Karlsson, J, AK Bergström, P Byström,
C Gudasz and C Hein, Umeå University. Implications
of changing terrestrial organic carbon export on
lake productivity: Merging process and habitat
specific responses to an integrated ecosystem level
understanding.
10:50 AM OOS 53-9 Weidel, BC 1 , J Zwart 2 , SE Jones 3 and CT
Solomon 4 , (1)US Geological Survey, (2)Calvin College,
(3)University of Notre Dame, (4)McGill University.
Implications of dissolved organic carbon on fish feeding
and predator prey interactions.
11:10 AM OOS 53-10 Solomon, CT 1 , SE Jones 2 , BC Weidel 3 and
PT Kelly 2 , (1)McGill University, (2)University of Notre
Dame, (3)US Geological Survey. Subsidy or subtraction?
Whole-lake experiments, surveys, and models to test the
effects of terrestrial DOC on aquatic food webs.
OOS 53 - Global Browning of Inland Waters:
Implications of Changing Terrestrial Dissolved Organic
Carbon Concentrations for Aquatic Ecosystems
B113, Oregon Convention Center
Organized by: CT Solomon, BC Weidel, SE Jones
Moderator: SE Jones
This session will focus on how the direct and indirect influences
of terrestrial carbon will combine to regulate aquatic ecosystem
services, including carbon balances and fisheries, under elevated
terrestrial carbon supply.
8:00 AM OOS 53-1 Lennon, JT, Indiana University. Browning of
freshwater ecosystems: culprits and consequences of
global change.
8:20 AM OOS 53-2 Buffam, I
172 ESA 97th Annual Meeting, August 5 - 10, 2012, Oregon Convention Center
1 , PC Hanson2 , MG Turner2 and
SR Carpenter3 , (1)University of Cincinnati, (2)University
of Wisconsin, (3)University of Wisconsin - Madison.
Why are small lakes brown? A framework for assessing
watershed carbon loading and in-lake processing for a
northern lake district.
8:40 AM OOS 53-3 Larsen, S, University of Oslo. Predicted
terrestrial carbon loads to lakes under future climate
scenarios.
9:00 AM OOS 53-4 Read, JS1 , KC Rose2 and PC Hanson3 9:20 AM
,
(1)University of Wisconsin-Madison, (2)Smithsonian
Environmental Research Center, Edgewater, MD USA, (3)
University of Wisconsin. Controls of lake water color on
stratification, mixing, and seasonal water temperatures in
small temperate lakes.
OOS 53-5 Saros, JE1 , CE Williamson2 , CEH Kissman2 and KC Rose3 OOS 54 - Community Context of Species’ Range
Expansions: Novel Community Associations In
Response to Biological Invasions and Climate Change
B116, Oregon Convention Center
Organized by: KM Prior (k.prior@utoronto.ca), TD Marsico
Moderator: KM Prior
Biodiversity is being altered as novel community associations form
in response to the reshuffling of species around the globe. This
session presents research on the influence of novel community
associations on range-expanding species and the effect of these
novel species on their recipient communities.
8:00 AM OOS 54-1 terHorst, CP and JA Lau, Michigan State
University. Genetic variation in response to the biotic
community influences invasion success.
8:20 AM OOS 54-2 Desurmont, G, University of Neuchatel.
Conquering a defense-free space: History and ecological
context of viburnum leaf beetle invasion in North America.
8:40 AM OOS 54-3 Marczak, L, The University of Montana.
Range expansion, sudden declines and unknown food
web interactions of an aquatic invader.
9:00 AM OOS 54-4 Gandhi, KJK, University of Georgia.
Response of native arthropods to ash tree decline and
mortality due to the exotic emerald ash borer.
9:20 AM OOS 54-5 Engelkes, T
, (1)University of Maine, (2)Miami University,
(3)Smithsonian Environmental Research Center,
Edgewater, MD USA. Dissolved organic material as a
resource subsidy for phytoplankton in lake ecosystems.
1 and NJ Mills2 , (1)University of
California Berkeley, (2)University of California - Berkeley.
Food plant legacy and tri-trophic interactions in the
context of novel invasive species associations.
9:40 AM Break
9:50 AM OOS 54-6 Marsico, TD and AM Woodard, Arkansas
State University. Do recent invasion frameworks
downplay the community context of species invasions?.
10:10 AM OOS 54-7 Bishop, JG, Washington State University. Do
novel community associations confer instability? Insights
from plant-insect interactions during primary succession
at Mount St. Helens.
10:30 AM OOS 54-8 Fey, SB1 and CM Herren2 , (1)Dartmouth
College, (2)Dartmouth. Predicting the impact of climate
change on the establishment success of non-native
species.
FRIDAY