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FORAGING MINUTES

4000

Stump Log Stub Snag Live

3500 3000 2500 2000 1500 1000 500 0 <15

15-20 >20-25 >25-30 >30-35 >35-40 >40-45 >45-50 >50-55

>55

DIAMETER CLASS (cm)

% USE - % AVAILABLE

10 5 0 -5 -10 -15 -20

<15

>15-20 >20-25 >25-30 >30-35 >35-40 >40-45 >45-50 >50-55 >55

DIAMETER CLASS (cm)

Fig. 2.7. Diameter class (cm) and % use - % available for foraging substrates used by pileated woodpeckers at Hinton, Alberta, 1993â&#x20AC;&#x201C;96. For the % use figure, black bars indicate significantly (P < 0.05) higher use than available, grey bars indicate not significantly different use than available, and white bars indicate significantly lower use than available.

32

Pwp 2001 04 rpt phdthesis pileatedwoodpeckerhabitatecologyinabfoothills  

http://foothillsri.ca/sites/default/files/null/PWP_2001_04_Rpt_PhDThesis_PileatedWoodpeckerHabitatEcologyinABFoothills.pdf

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