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Formatting Guidelines. Color Same color for all font or alternate between headings and text but use no more than 2 colors Font No smaller than 20 (except citations) Shadow & bold, but be sure text is legible Images Should not be pixelated; should be web cited if not your own (see example).

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Formatting guidelines l.jpg
Formatting Guidelines

  • Color

    • Same color for all font or alternate between headings and text but use no more than 2 colors

  • Font

    • No smaller than 20 (except citations)

    • Shadow & bold, but be sure text is legible

  • Images

    • Should not be pixelated; should be web cited if not your own (see example)


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Formatting Guidelines

  • Background

    • Images or color acceptable if text is legible

    • Use Light background : Dark Text

  • Slide #

    • Varies but must adhere to time limit – So Practice!!!

  • Text (bullet points)

    • Should be result statements; concise and meaningful. No vague generalities.

      • E.g., treefall number (generality), Moisture influences treefall number (concise and meaningful)

        Image location in this sample ppt is optional and purely for example only


Soil drainage impacts frequency but not mode of treefall in a temperate deciduous forest l.jpg

Soil drainage impacts frequency but not mode of treefall in a temperate deciduous forest

image

Carol K. Augspurger

Department of Plant Biology

University of Illinois

www.webimage.com


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Background: a temperate deciduous forest

  • Important role of treefalls in forest

    regeneration

image

www.webimage.com

treefall


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Background: a temperate deciduous forest

  • Types of treefalls: uproot vs. snap off

image

www.webimage.com


Background6 l.jpg
Background: a temperate deciduous forest

  • Soil conditions vs. type of treefall

    • Loose

    • Saturated

    • Interaction with wind

Graph from primary literature

to show preliminary

data helping to generate a question

Augspurger et al. 2007, J. Exp. Bot.


Question l.jpg
Question: a temperate deciduous forest

Does variation in soil drainage

affect the frequency and mode of treefall?


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Hypothesis/Prediction: a temperate deciduous forest

  • If soil drainage affects treefall frequency

    and mode of death,

  • then number of treefalls and ratio of

    uprooted:snapped-off trees will be

    greater in poorly drained than well-

    drained soils.

    Assumption:

  • Wind conditions equivalent in both areas.


Methods l.jpg
Methods a temperate deciduous forest

  • Study site

  • Soil drainage: defined and maps

Study site image


Methods10 l.jpg
Methods a temperate deciduous forest

Experimental design

  • IV: Soil drainage (poor or well drained)

  • DVs:

    number of treefalls per quadrat

    number of uprooted vs. snap off treefalls

  • # replicates: 15 (50x50m quadrats)

  • Sampling unit: one tree > 20 cm DBH

Design image (quadrat placement?)


Methods11 l.jpg
Methods a temperate deciduous forest

  • Statistics

    t-test (frequency); chi-sq (ratio treefall type)

Example graph


Treefall number depends on moisture l.jpg

Results a temperate deciduous forest

Treefall number depends on moisture

Number of treefalls

t-test P<0.01


Mode of death varies among soil types l.jpg

Results a temperate deciduous forest

Mode of death varies among soil types

Red: snap

Blue: uproot

Total Number of Treefalls

  • Chi-sq 1: ratio snap:uproot P>0.05

  • Chi-sq 2: uproot>snap P<0.05


Discussion l.jpg
Discussion: a temperate deciduous forest

  • Hypothesis 1: supported

    • Why?

    • Literature in agreement or not – discuss or provide evidence (images/graphs)


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Discussion: a temperate deciduous forest

  • Hypothesis 2: not supported

    • Why?

    • Literature in agreement or not – discuss or provide evidence (images/graphs)


Minor limitations l.jpg
Minor Limitations a temperate deciduous forest

  • Pseudoreplication

  • Investigator bias

  • Variable surrogates

    • Light intensity was not measured but assumed to vary depending on angle of sun


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Future directions a temperate deciduous forest

  • What can we look into next?

  • What will we find based upon your data?


Slide18 l.jpg

Conclusions: a temperate deciduous forest(summarize the results and draw an encompassing conclusion in the context of your introduction e.g., climate change, restoration ecology, spatial dynamics of fragmentation)

  • Soil drainage impacts treefall frequency, but not mode of treefall.

  • Areas with contrasting soil should have different:

  • forest dynamics

  • regeneration potential

  • species composition


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Acknowledgments a temperate deciduous forest

  • TA: Molly McNicoll

  • Funding: Mom and Dad

  • Institutional Support:

    Steve Buck, Manager

    Natural Areas/ University of Illinois


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