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Key Features of Early Seral Habitats for Wildlife

Key Features of Early Seral Habitats for Wildlife. Joan Hagar USGS-FRESC. Matt Lee. Matt Lee. Matt Lee. Matt Lee. Bob Altman. Following Natural Disturbance. Structure Legacy trees and snags Open (low tree density) Large wood Composition Herbs and Grasses Shrubs

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Key Features of Early Seral Habitats for Wildlife

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  1. Key Features of Early Seral Habitats for Wildlife Joan Hagar USGS-FRESC Matt Lee

  2. Matt Lee Matt Lee Matt Lee

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

  4. Species associated with closed canopy forest also use early seral habitats… IF appropriate habitat elements are available

  5. Species that specialize on conifers Hemlock Looper Red Crossbill Red Tree Vole

  6. Many conifer forest associates rely on diversity of plants Spruce Grouse

  7. Elements of Quality Early Seral Habitat

  8. D.Vesely Matt Lee Residual trees and snags

  9. Cavity-nesters in burned forests • Fire-killed snags are important resource for foraging and nesting • Many species respond negatively to salvage logging

  10. Bob Altman

  11. D. Vesely Early Seral Habitat for Reptiles • Basking • Prey

  12. D. Vesely Dead Wood as Refugia

  13. Plant Diversity = Food Resources • Foliage • Nectar • Fruits • Seeds

  14. Plant Diversity: foundation of food webs

  15. Matt Lee

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

  17. Peter LaTourrette

  18. Importance of Early Seral Broadleaf Communities to Avian Biodiversity

  19. 30 Year Trend for Swainson’s Thrush from Tillamook S.F. BBS Route

  20. Creating Early Seral Habitat?

  21. 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

  22. 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

  23. Restoration of Late Seral Forest • Emphasizes large trees • Size limit on harvest area on federal lands • What will understory look like?

  24. Keep all the pieces

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