Long-Term Response of Luzula arctica and Luzula confusa to Warming in the Alaskan Tundra.

Slides:

Advertisements

Similar presentations

CLIMATE CHANGE IMPACTS ON THE PRAIRIE Mandy Guinn, Kerry Hartman, Jen Janecek-Hartman.

Advertisements

BarrenGraminoidShrub Wetland B1 Cryptogram, herb barren G1 Rush/Grass, forb, Cryptogram tundra B2 Cryptogram barren compex (bedrock) P1 Prostrate dwarf-shrub,

LEPIDOPTERA LARVAE AS AN INDICATOR OF MULTI-TROPHIC LEVEL RESPONSES TO CHANGING SEASONALITY IN THE ARCTIC K. M. Daly, 1 H. Steltzer, 1 L. Gough, 2 M. Rich,

1 Climate Change Science Kathryn Parker U.S. Environmental Protection Agency Rocky Mountain National Park March 21, 2007 July 1932July 1988 Glacier National.

Climate Change and Wildlife Manitoba Chapter of The Wildlife Society Cory Lindgren, Past President.

Climate Change Science

Iowa Climate Statement 2014 Christopher J. Anderson Research Assistant Professor, Department of Agronomy Assistant Director, Climate Science Program Iowa.

Global climate change: Scenarios and Impacts Clare Goodess Climatic Research Unit University of East Anglia

Table 1. Demographic data of students 82% of participants were Caucasian. Table 1. Demographic data of students 82% of participants were Caucasian. THE.

Coupled Ocean and Atmosphere Climate Dynamics ENVI3410.

The Current State of Our Climate Prof. Tim Raymond Chemical Engineering Dept. Bucknell University Focus the Nation – Obstacles to Change January 31, 2008.

Climate change Refers to any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades.

Early flowering of plants in the Northern Great Plains linked to increasing spring temperatures over 100 years Kelsey L. Dunnell & Steven E. Travers, Department.

MET MET 112 Global Climate Change: Lecture 13 Climate Change Impacts: Present and Future II Dr. Craig Clements.

The atmosphere is changing Observed impacts of climate change What can we project for the future.

Climate Change Graphs. Activity You and your partner will receive a graph from the IPCC (Intergovernmental Panel on Climate Change). You will analyze.

Title Climate change Changes in glacier size, snow extent, precipitation (snow: rain), permafrost Changes in stream habitat conditions (eg. Water temperature,

Earth Science Chapter 11.2 Climate Change.

Introduction With global warming becoming more of a concern to society, as well as entire ecosystems, it is important to address proposed methods to alleviate.

1. Introduction 3. Global-Scale Results 2. Methods and Data Early spring SWE for historic ( ) and future ( ) periods were simulated. Early.

© Oxford University Press Global warming – the future Climate change – what next? It’s April Scientists from more than 100 countries have.

The Changing Terrestrial Arctic Terry Chapin. Polar regions are the cooling system for Planet Earth.

Sea Ice Yearly Minimums in the Arctic from

Stimulating interest in climate change ecology among first year students David Matlaga.

Collaborative Research: Study of Arctic ecosystem changes in the IPY using the International Tundra Experiment (ITEX) Steve Oberbauer, Robert Hollister*,

Future atmospheric conditions increase the greenhouse-gas intensity of rice cultivation K.J. van Groenigen*,†, C. van Kessel ‡, B.A. Hungate* Discussion.

Climate Change 101. What Is Climate? What Is the Greenhouse Effect?

Image courtesy of NASA/GSFC. Eugene S. Takle Professor Department of Agronomy Department of Geological and Atmospheric Science Director, Climate Science.

Wildlife Response to Environmental Arctic Change November, 2008 Wildlife Conservation Society ABR Inc. UAF Institute of Arctic Biology UAF International.

Climate Change Science and the Limits of Confidence John Nielsen-Gammon Dept. of Atmospheric Sciences Texas A&M University.

Global Warming Lauren Pollock SCI 210 Dr. Sandy November 18, 2003 "An increasing body of observations gives a collective picture of a warming world and.

By Edward Osborn GEOG What is permafrost?  Permafrost is the term used for ground that is frozen solid year-round. When people refer to permafrost,

 resources/natural-selection resources/natural-selection.

Current & Future Ecological Responses to Climate Change Dr. Heather Throop NMSU Biology IPCC, 2007.

In Northern Mists: Bering Climate-Present and Future James Overland, Phyllis Stabeno, Muyin Wang and Nick Bond NOAA/Pacific Marine Environmental Laboratory.

Climate Change and Northern Bobwhites: The State of Our Knowledge, Possible Outcomes, and the Risk of Ignorance James A. Martin Mississippi State University.

Arctic Tundra By: Brooke Mullis Picture of World With Arctic Tundra The orange is where the Arctic Tundra.

Variations in mass balance and snow and firn densities along a transect in the percolation zone of the Greenland Ice Sheet Vicki Parry (1), Peter Nienow.

What does a good graph need?. Objectives Use data on greenhouse gases to produce graphs showing trends. Explore the effect of greenhouse gases on the.

Global Warming Climate Change. The Question  The question is NOT whether the average global temperature is going up.  The question is whether or not.

Eugene S. Takle Professor Department of Agronomy Department of Geological and Atmospheric Science Director, Climate Science Program Iowa State University.

Climate Change Impacts and Adaptation Implications for Agriculture in the Asia-Pacific Region Andrew Ash Interim Director CSIRO Climate Adaptation.

Climate Sensitivity of Thinleaf Alder Growth in Interior Alaska: Implications for N-Fixation Inputs to River Floodplains Dana Nossov 1,2, Roger Ruess 1,

Response of Luzula arctica and Luzula confusa to warming in Barrow and Atqasuk, Alaska Kelseyann Kremers and Dr. Robert D. Hollister Grand Valley State.

© Oxford University Press 2009 Part 7 Global warming─Are humans responsible? Quit 7Global warming – Are humans responsible?

The State of the World A science perspective. Millenium Ecosystem Assessment The Millennium Ecosystem Assessment assessed the consequences of ecosystem.

Study of Arctic ecosystem changes in the IPY using the International Tundra Experiment (ITEX). Steve Oberbauer, Robert Hollister, Jeff Welker, Julia Klein,

Greenhouse effect what is it?. Which are the greenhouse gases  water vapor, which contributes 36–70%  carbon dioxide, which contributes 9–26%  methane,

The Changing Arctic: Recent Events & Global Implications Martin O. Jeffries National Science Foundation Office of Polar Programs Division of Arctic Sciences.

Climate Change Information Seminar Intergovernmental Panel on Climate Change Fourth Assessment Report (AR4) – the relevance to FAO’s activities Claudia.

BACC II progress Anders Omstedt. BALTEX-BACC-HELCOM assessment Department of Earth Sciences.

BACC - Assessment of past and expected future regional climate change in the Baltic Sea Region Speaker: Hans von Storch GKSS Research Centre, Germany Hamburg,

Vulnerability of Major Wastewater Facilities to Flooding from Sea-Level Rise May 14, 2008 Laura Wharton & Shaun O’Neil King County WTD.

Observations of on-going Arctic change Nancy N. Soreide, NOAA PMEL, J. E. Overland, J. A. Richter-Menge, H. Eicken, H. Wiggins, J. Calder.

Climate change assessments to date Earth Science 1 March 27, 2012.

ce/features/earth/climate/en/challenge/index. htm?width=835&height=680&popup=true.

Global Climate Change: Past and Future. `The balance of evidence suggests that there is a discernible human influence on global climate ' Intergovernmental.

Fading to Blue: Effects of Inundation and Salinity on Tidal Marsh Vegetation V.T. Parker, L.M. Schile, J.C. Callaway & M.C. Vasey San Francisco State University.

INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE (IPCC) Working Group II The international context: Impacts, adaptation and mitigation, From Bali to Copenhagen.

RESULTS Cont’d EFFECTS OF CROPPING AND TILLAGE SYSTEMS ON SOIL EROSION UNDER CLIMATE CHANGE IN OKLAHOMA X-C. John Zhang USDA-ARS Grazinglands Research.

Nasser Abdel-Fatah Student: Johnson State College Nasser Abdel-Fatah

Body Size of Emerging Arctic Chironomids Correlates with Temperature

Impact of Climate Change on Peri-Glacial Environments

Global Climate Change: Past and Future

How do we know? Developed by Robert Logan Kellogg Biological Station

Evidence for Climate Change

Temperature and CO2 Trends.

Climate Change, Consequences

The Response of the Alaska Boreal Forest to a Warming Climate

Earth’s Energy Balance

Presentation transcript:

Long-Term Response of Luzula arctica and Luzula confusa to Warming in the Alaskan Tundra

Expected to show earliest and greatest response to global climate change (IPCC 2007) Why Arctic? Linked to global climate (ACIA 2004)

Study Sites Barrow 71°18’N, 156°40’W Atqasuk 70°29’N, 157°25’W Experimental Design 2 Dry Heath Communities: Atqasuk Dry Barrow Dry 1 Meter squared plots -24 Control -24 Warmed Passive open-top fiberglass chambers Increase temperature 1-3° C

Luzula arctica and Luzula confusa Common rushes at both dry heath sites Associated with disturbances Known to hybridize

Measurements Summer Inflorescence Height - Number of Inflorescences - Flowering date L. arctica Hulten (1968) Inflorescence Height

Question: What factor is causing a negative response in these years? Relate to temperature: Thawing Degree Days (TDD)- cumulative degree days above freezing (0°C)

Thawing Degree Days (TDD) Average Temperature (°C) Julian Day

Thawing Degree Days (TDD) Average Temperature (°C) Julian Day

Inflorescence Height

Luzula confusa

Inflorescence Height Luzula confusa

Inflorescence Height Luzula confusa

Inflorescence Height Luzula arctica

Inflorescence Height Luzula arctica No change in warmed plots Increase in height with increasing TDD in control plots

Summary Luzula confusa Inflorescence Height Overall: Increased TDD is associated with increased height. All sites/treatments show no trend. Luzula arctica Inflorescence Height Overall: Increased TDD is associated with increased height. All sites/treatments suggest increased height with increased TDD.

Number of Inflorescences Luzula confusa

Number of Inflorescences Luzula confusa Fewer inflorescences in warmed plots at both sites

Number of Inflorescences Luzula arctica

Number of Inflorescences Luzula arctica No significant change

Summary Luzula confusa Inflorescence Height Overall: Increased TDD is associated with increased height. All sites/treatments show no trend. Luzula arctica Inflorescence Height Overall: Increased TDD is associated with increased height. All sites/treatments suggest increased height with increased TDD. Number of Inflorescences Overall: No trend. Control plots had more inflorescences than warmed plots. Number of Inflorescences Overall: increased TDD is associated with decreased number of inflorescences. All sites/treatments show no trend.

Flowering Date Luzula confusa Earlier flowering date in warmed plots Flowering is earlier in Atqasuk

Flowering Date Luzula arctica Flowering is earlier in Atqasuk

Summary Luzula confusa Inflorescence Height Overall: Increased TDD is associated with increased height. All sites/treatments show no trend. Luzula arctica Inflorescence Height Overall: Increased TDD is associated with increased height. All sites/treatments suggest increased height with increased TDD. Number of Inflorescences Overall: No trend. Control plots had more inflorescences than warmed plots. Number of Inflorescences Overall: increased TDD is associated with decreased number of inflorescences. All sites/treatments show no significant change. Flowering Date Flowering occurs earlier with warming. Flowering Date No significant change.

Conclusions Both species are responding to warming Each species responds differently Response is different for each site

Future Plans Continue to look at other relationships. – What other factors are involved? More phenology

Questions? Acknowledgements: National Science Foundation GVSU Arctic Ecology Program Jeremy May, Robert Slider, Jennifer Liebig Barrow Arctic Science Consortium References: IPCC (ed) Climate Change 2007: The Scientific Basis. Contribution of Working Group II to the Third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press. Cambridge, United Kingdom. pp. 230 ACIA Impacts of a Warming Arctic: Arctic Climate Impact Assessment. Cambridge University Press. Cambridge, United Kingdom. Hollister, R.D., P.J. Webber, and C. Bay Plant response to temperature in northern Alaska: Implications for predicting vegetation change. Ecology. 86(6):