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Geometry of forest landscape connectivity: pathways for persistenceAuthor(s): Deanna H. Olson; Kelly M. Burnett
Source: In: Anderson, P.D.; Ronnenberg, K.L., eds. Density management in the 21st century: west side story. Gen. Tech. Rep. PNW-GTR-880. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 220–238.
Publication Series: General Technical Report (GTR)
Station: Pacific Northwest Research Station
PDF: View PDF (599.93 KB)
DescriptionStreamside areas may be dispersal funnels or runways for a variety of species. For over-ridge dispersal, headwaters offer the shortest distance links among riparian zones in adjacent drainages. We summarize landscape designs for connectivity of habitats using headwater riparian linkage areas as the foundation for a web of landscape-scale links. We developed management considerations for placement of headwater linkage areas including: 1) providing connections between larger basins; 2) maintaining habitat connectivity in the face of climate change; 3) incorporating place-based disturbance regimes such as headwater debris-fl ow-prone areas; 4) targeting connectivity areas to address sensitive species conservation strongholds; and 5) accounting for geometry at the foreststand scale of a single project or proposed timber sale, including managing habitats to connect lands on adjacent federal ownerships, by means of connecting corners of checkerboard landscape blocks along diagonals. Although our proposed linkage areas are designed to target headwater species, the resulting web of connections across the landscape is expected to benefi t many forestdependent species.
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CitationOlson, Deanna H.; Burnett, Kelly M. 2013. Geometry of forest landscape connectivity: pathways for persistence. In: Anderson, P.D.; Ronnenberg, K.L., eds. Density management in the 21st century: west side story. Gen. Tech. Rep. PNW-GTR-880. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 220–238.
Keywordswatersheds, forest, headwaters, biodiversity, linkage areas, dispersal.
- Design and management of linkage areas across headwater drainages to conserve biodiversity in forest ecosystems
- Plethodontid salamander distributions in managed forest headwaters in western Oregon
- Linked in: connecting riparian areas to support forest biodiversity
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