Resolution No. 4780 - Laserfiche WebLink

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5. Fish spawning Areas 6. Agricul- tural Lands 7. Rock Out- . crop Areas 8. Snags 9. Limi ted Habi ta ts Major rivers and a few streams: Important resources for the reproduction of anadromous fish (i.e., those that mature in the sea and migrate to streams to spawn). Coho salmon, spring chinook salmon, fall chinook salmon, winter- rURfsteelhead, summer-run steelhead and cutthroat trout migrate. from the Pacific Ocean into the forks of the Willa- mette and McKenzie Rivers. Most of the river systems located in tbe metro area provide important gravel spawning areas: Croplands and pasturelands: Provide opportunities for wildlife. .When managed to provide hedgerow, wooded plots and buffe~s of natural vegetation, agricultural lands can be enhanced. 'Provide a very limited and yet significant wildlife nabit~t for the endangered western rattlesnake and other t.eptiles in tne metro area. There are only a few large rock outcrop areas whi'ch have not been or are now bei ng used as q!,larry rock. sources. . St,anding dead wees repres.ent a unique habitat requirement for a number:of bitds and mammals. Insect ea'Hrig birds 'create cavities which cavity-nesting birds and mammals inhabi't. Snags are decreasing in numbers as old growthsta~ds ar~ being cut at an increasing rate. Snag trees need to be set aside to preserve those wild- life species depend~nt upon this ecological niche. Vegetation habitat types.which: 1) constitute less than 1% o,f the total stucly area, or 2) 'constitute a sig- nificant.'.;propo.rtJoo of a .type which is not abundant in elther Lane: County or Oregon. Based on these two ~ri- teria, seven significant habitat types were determined to be limited and therefore important to the study area: riparian woodlands, mixed conifer/deciduous woodlands, pure ponderosa pine~ pure incense cedar, and wetlands, including freshwater marsh, wetland shrub and wet meadows. SIGNIFICANT VEGETATION AND WILDLIFE AREAS Thirty-five significant vegetation and wildlife geographic sites or areas have been identified in the study area. These sites were selected utilizing ten criteria derived from the vegetation and wildlife inventory 0-10 .