1. Cases Studies: Importance of Scales in Ecological Investigations EEES 6760, University of Toledo January 28, 2009

2. Reference Reading: Saunders, S.C., J. Chen, T.D. Drummer, E.J. Gustafson, and K.D. Brosofske. 2005. Identifying scales of pattern in ecological data: a comparison of Lacunarity, spectral and wavelet analyses. Ecological Complexity 2: 87-105. [PDF]PDF

3. LeMoine & Chen 2003 1a 1b Changes in temperature with distance from an edge and by time

4. LeMoine & Chen 2003

5. Changes in carbon fluxes

6. Chen et al. 2004 The 16 ha stem-mapped plot at the Wind River Canopy Site

7. Chen et al 2004

8. Song et al. 2004 Changes in H’ with spatial scales

9. Chen et al. 2004

10. The Mesocosms Facility near Duluth

11. Chen et al. 2008 Diurnal changes in soil temperature with heat loadings (HT)

12.  T( o C) 19992000 Chen et al. 2008 Changes in difference of daily mean temperature with heat loadings (HT) from the ambient temperature (  T, °C at 25 cm depth) of the peatland mesocosms for each water level (WL) treatment in 1999 and 2000

13. Small-Block PinePine-Oak-Aspen Forest Large-Block Pine OakPine Barrens Landscape Level (Four Landscapes) Do differences among landscape-level disturbance regimes influence patterns of understory plant diversity or composition?

14. Cumulative Species Richness RRP MP TRP60RJP RP12 OCC RP7 OCC TRP60 CC MA BOPB OPB PA SPB CC YA2 H2 H1 JPO SPB OPB YA2 OC C OBCCOCCHHHF F2 JPO RP5 MP NC C POA RP15 ORP15 H2 MP F2 HHH H H F H2 C RP60 Distance (m) Number of Species Pine Barrens Large-Block PO Small-Block Pine POA Forest Old Harvest Landing Sand Road- Mod. Use Sand Road- Light Use Clearing Access Road ATV Trail Dry Streambed Grassy Roadside Brosofske et al. 2006

15. Wavelet Analysis of Shannon Diversity (H’) 1500 Old Harvest Landing Sand Road- Mod. Use Sand Road- Light Use Clearing Access Road 0 1000 500 Resolution (m) OPBBOPBOPBPASPBCCYA2 H2 H1JPOSPB OPB MA YA2 1000020003000 Distance (m) H’ 0 1.0 2.0 1000 1500 500 0 0 0.6 1.2 W. Var. Scale W E

16. Datasets used in the comparison of lacunarity, spectral, and wavelet analysis. Saunders et al. 2004.

17. Reconstruction of data series from the discrete wavelet. Saunders et al. 2004.

18. Log(lacunarity) (1), spectral density (2), and wavelet variance (3) for air temperature at the ground surface every 5 m along a transect

19. Cases Studies: Importance of Scales in Ecological Investigations Homework 1: Changes in Species Cover at Multiple Spatial Scales Using: (1) moving window average; and (2) the gliding box method to examine the changes of species coverage of bracken fern (Pteridium aquilinum) along a 3000 m transect across the Moquah Pine Barrens in Northern Wisconsin. More instructions to be emailed. Homework due: 2/16?