Landscape ecology
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Using abstract diagrams and simple text, this slide show teaches the basic principles of landscape ecology patterns in natural and built environments, and how they support process.
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Landscape ecology
- 1. Landscape Ecology: Sustainable Urban Landscape Patterns
- 2. The Language of Landscape Ecology Elements and anatomy • Patches • Edges • Corridors • Mosaics spatial theory with no distinction between built and natural environments
- 3. Patches origins of patches: • remnant • introduced • disturbance • resource protection
- 4. Patch dynamics large patches have more core dividing a patch creates more edge
- 5. Patch dynamics large patches have more core dividing a patch creates more edge
- 6. Patch dynamics a critical mass of interdependent activity is lost when urban cores are segmented
- 7. Patch dynamics a critical mass of interdependent activity is lost when urban cores are segmented
- 9. Patch dynamics large patches have higher population and less likelihood of extinction over time time
- 10. Patch dynamics large patches have higher population and less likelihood of extinction over time
- 11. Patch dynamics smaller, under-populated neighborhoods may be lost over time time
- 12. Patch dynamics smaller, isolated elements may be lost over time
- 13. Patch dynamics large patches have more habitat diversity and greater population diversity
- 14. Patch dynamics large urban areas have more settings, encouraging more diverse populations and activities
- 15. Patch dynamics large urban areas have more diverse populations
- 16. Patch dynamics a system of small patches may support a comparable amount of activity, though diverse in type
- 17. Patch dynamics
- 18. Patch dynamics a network of districts or activities in an urban area may perform competitively with larger ones
- 19. Patch dynamics
- 20. Patch dynamics
- 21. Patch dynamics Portland, Oregon grid of patches
- 23. Patch dynamics patches closer to a larger patch will be more likely to maintain their populations; farther patches risk extinction
- 24. Patch dynamics
- 25. Patch dynamics villages closer to the urban core are more likely to have sustained occupancy and activity
- 26. Patch dynamics
- 27. Edges characteristics of edges: • cross-section • straight or convoluted • width • vulnerability • transitional • filtering/buffering
- 28. Edges Abrupt edges encourage parallel movement.
- 29. Edges Pastureland at forest edge
- 30. Edges Abrupt edges encourage parallel movement and discourage lateral movement.
- 31. Edges Ovieto
- 32. Edges Suburban to rural sprawl
- 33. Edges Convoluted edges have more length, and contain coves and lobes, encouraging movement through them.
- 34. Edges
- 35. Edges Convoluted edges have more length, and contain coves and lobes, encouraging movement through them.
- 36. Edges Patterns that relate to CONTACT and EXCHANGE are valid for both built and natural systems
- 37. Edges Hong Kong
- 38. Edges
- 39. Edges Vertical change that is less abrupt has more structural diversity.
- 40. Edges
- 41. Edges Vertical change that is less abrupt has more structural diversity.
- 42. Edges
- 43. Edges Directional forces (sun, wind) produce wider edges. r r
- 44. Edges
- 45. Edges Directional forces (microclimate, people) produce wider edges. r r
- 46. Edges
- 47. Edges Convoluted edges foster more +/- interaction.
- 48. Edges Convoluted edges foster more +/- interaction.
- 49. Corridors characteristics of corridors: • connect shrinking patches • allow continuity and movement • may dissect patches • create barriers • filter movement rivers power lines hedgerows canals roadways bikeways tunnels
- 50. Corridors Continuity and width influence the function of corridors.
- 53. Pedestrian Corridors Continuity and width influence the function of corridors.
- 55. Corridors Continuity and width influence the function of corridors, also when they are barriers.
- 56. Corridors “Stepping stones” may provide most corridor functions.
- 57. Corridors “Stepping stones” may provide most corridor functions.
- 58. Parallel Corridors River corridors with vegetation corridors have mutual benefits.
- 59. Parallel Corridors Road corridors benefit from parallel pedestrian corridors.
- 64. The case of Thorton Creek Seattle, WA
- 65. The case of Thorton Creek Seattle, WA
- 66. The case of Thorton Creek Seattle, WA
- 67. The case of Thorton Creek Seattle, WA
- 68. The case of Thorton Creek 680-acre watershed
- 69. The case of Thorton Creek 680-acre watershed
- 70. Corridors of patches Ladder patterns may be more effective than narrow parallel corridors for streams.
- 72. Corridors-Urban Core Parallel corridors with street trees may or may not have mutual benefits.
- 73. Corridors-Urban Core Ladder patterns may be more effective than narrow parallel corridors for roads.
- 75. Corridors-Urban Core 30 units (sites) for buffer
- 76. Corridors-Urban Core 17 units (sites) for buffer
- 78. Mosaics characteristics of mosaics: • pattern • scale • connectivity • networks • circuitry • mesh size
- 79. Mosaics Pattern is created by the arrangement and layering of spatial geometry.