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Effects of Forest Management on Wildlife Use of Early Seral Habitats Joan Hagar USGS-FRESC.

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Presentation on theme: "Effects of Forest Management on Wildlife Use of Early Seral Habitats Joan Hagar USGS-FRESC."— Presentation transcript:

1 Effects of Forest Management on Wildlife Use of Early Seral Habitats Joan Hagar USGS-FRESC

2 Early Seral = Seedling Conifers?

3 Following Natural Disturbance... Structure –Legacy trees and snags –Open (low tree density) –Large wood Composition –Herbs and Grasses –Shrubs –Hardwoods Bob Altman

4 Residual trees and snags Matt Lee D. Vesely

5 Bob Altman

6 D. Vesely Early Seral Habitat for Reptiles Basking Prey

7 Dead Wood as Refugia D. Vesely

8 Food Resources Foliage Nectar Fruits Seeds

9 Matt Lee

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11 Arthropods Insect diversity correlated with plant diversity Deciduous species support more insects Influence of deciduous litter on soil food webs?

12 Peter LaTourrette

13 Matt Lee

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15 Consequences of reduced temporal span of early seral habitats Limit on shrub size and age Shortens duration of shrubby habitat Reduced persistence of shrubs into mid- aged forests

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17 Effects of Conifer-centric Forest Management on Early Seral Habitat Fewer residual structures Altered vegetation composition –Alters patterns of food abundance –Reduces diversity of food resources –Alters food webs Reduced temporal span

18 30 Year Trend for Swainsons Thrush from Tillamook S.F. BBS Route

19 Vertical Diversity?


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