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Prothonotary Warblers in CRW

Bird Community Changes and Habitat Succession: How Does the Restoration of the Cache River Wetlands Affect the Avian Communities?. Prothonotary Warblers in CRW. Nest Predation. Brood Parasitism.

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Prothonotary Warblers in CRW

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  1. Bird Community Changes and Habitat Succession:How Does the Restoration of the Cache River Wetlands Affect the Avian Communities?

  2. Prothonotary Warblers in CRW

  3. Nest Predation

  4. BroodParasitism The Brown-headed cowbird traditionally followed the bison herds as they migrated across the Great Plains.

  5. The cowbirds leave the open fields to lay their eggs in the nest of a host within the forest.

  6. Host Species of CRW Wood Thrush Prothonotary Warbler

  7. Brood Parasitism

  8. Cowbirds avrials First to hatch… Much larger than warblers…

  9. Forest Fragmentation Once large and continuous tracts of bottomland hardwood forests were cleared which decreased wetland habitat for the avian communities.

  10. Post Creek Cut- Off The wetlands were converted to farm land as they were drained by the Post Creek Cut-off, a manmade shortcut to the Ohio River.

  11. Logging the Cache River Wetlands

  12. Restoration A Joint Venture By IDNR, USFWS, Ducks Unlimited, The Nature Conservancy & NRCS initiated restoration in the Cache River Wetlands.

  13. Restoration Native hardwoods are being planted on WRP and agency land.

  14. Grassy Slough Preserve in the Cache River Wetlands The planting of bottomland hardwood tree seedlings and canebrakes, will bring the total land restored on the former vegetable farm to approximately 1,600 acres of forest and 700 acres of wetlands.

  15. Pickerelweed Transplanted at Grassy Slough

  16. Research Sites Stages of Succession 0 years: Corn fields 1-3 years: Grasslands 5-10 Years: Shrubby/old field habitat 11-15 years: Young forest

  17. Research Objectives To determine how the communities of songbirds change with habitat succession To understand how restoration may reduce severity of cowbird parasitism in

  18. Hypothesis:The survey will show a relationship between the age of the forest succession & the species of birds present…

  19. And… The severity of brood parasitism in the mature forest will be reduced by reforestation off the bottomland.

  20. Predictions If the severity of brood parasitism has been reduced by restoration of the bottomland forest…then there will be fewer female Brown-headed cowbirds detected by the survey.

  21. Experimental Design:Identifying Survey Fields ARC Maps Field Tours

  22. Bird Identification Visual ID Song ID

  23. Data Acquisition Monitoring Recording

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