Ecological Approaches to Riparian Restoration in Northeast Oregon

Kauffman, J. Boone; Case, Ray L.; Lytjen, Danna; Otting, Nick; Cummings, Dian L.

doi:10.3368/er.13.1.12

Cited by 19 publications

(22 citation statements)

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“…For instance, in a large area of shifting riparian, marsh and estuarine ecosystems, the remnants of these aquatic ecosystems are largely fixed in place and cut off from each other by water management structures (Zamora et al, 2005;Glenn et al, 2013). This has been repeated around the world and in the USA the construction of 75,000 dams has contributed to declines of native fish populations (Osmundson, 2011 rivers are resilient and can recover from degraded conditions after restoration activities as habitats are often naturally dynamic and frequently experience large-scale natural disturbances such as floods (Kauffman et al, 1995;Moerke et al, 2004;Hansen and Budy, 2011). Suitable habitats are very important for the species survival and diversity in aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 97%

Linking hydrologic, physical and chemical habitat environments for the potential assessment of fish community rehabilitation in a developing city

Zhao¹,

Yang²,

Dou

et al. 2015

Journal of Hydrology

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Section: Introductionmentioning

confidence: 97%

Linking hydrologic, physical and chemical habitat environments for the potential assessment of fish community rehabilitation in a developing city

Zhao¹,

Yang²,

Dou

et al. 2015

Journal of Hydrology

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“…), and willow (Salix spp.) greatly increased in crown-volume (Case 1995;Kauffman et al 1995). Herbaceous vegetation density increased 4-6 times in riparian areas of the San Pedro River in Arizona, and 42 of 61 bird species increased in abundance when cattle were removed (Krueper et al 2003).…”

Section: Introductionmentioning

confidence: 97%

Restoration of Riparian Areas Following the Removal of Cattle in the Northwestern Great Basin

Batchelor

Ripple

Wilson

et al. 2015

Environmental Management

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We assessed the effects of the elimination of livestock in riparian systems at Hart Mountain National Antelope Refuge in southeastern Oregon, 23 years after the removal of cattle grazing, using 64 photos taken before grazing was removed compared with later retake photos. Two methods were used for this assessment: (1) a qualitative visual method comparing seven cover types and processes and (2) a new quantitative method of inserting digital line transects into photos. Results indicated that channel widths and eroding banks decreased in 64 and 73% of sites, respectively. We found a 90% decrease in the amount of bare soil (P < 0.001) and a 63% decrease in exposed channel (P< 0.001) as well as a significant increase in the cover of grasses/sedges/forbs (15% increase, P = 0.037), rushes (389% increase, P = 0.014), and willow (388% increase, P < 0.001). We also assessed the accuracy of the new method of inserting digital line transects into photo pairs. An overall accuracy of 91% (kappa 83%) suggests that digital line transects can be a useful tool for quantifying vegetation cover from photos. Our results indicate that the removal of cattle can result in dramatic changes in riparian vegetation, even in semi-arid landscapes and without replanting or other active restoration efforts.

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“…Techniques for riparian restoration include planting of riparian woody species, irrigation, and channel modification ( Briggs et al 1994; Kauffman et al 1995). A key component of any successful restoration is the identification of stressors that are contributing to the decline of the system or preventing system recovery.…”

Section: Introductionmentioning

confidence: 99%

Deer Herbivory as an Ecological Constraint to Restoration of Degraded Riparian Corridors

Opperman

Merenlender

2000

Restoration Ecology

110

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Ungulate herbivory can impact riparian vegetation in several ways, such as by reducing vigor or reproductive output of mature plants, and through increased mortality of seedlings and saplings. Much work has focused on the effects of livestock grazing within riparian corridors, while few studies have addressed the influence of native ungulate herbivory on riparian vegetation. This study investigated the effect of deer herbivory on riparian regeneration along three streams with degraded riparian corridors in Mendocino County, California. We utilized existing stream restoration efforts by private landowners and natural resource agencies to compare six deer exclosures with six upstream control plots. Livestock were excluded from both exclosure and control plots. Three of the deer exclosures had been in place for 15 years, one for 6 years, and two for 4 years. The abundance and size distribution of woody riparian plant species such as Salix exigua, S. laevigata, S. lasiolepis, Alnus rhombifolia, and Fraxinus latifolia were quantified for each exclosure and control plot. The mean density of saplings in deer exclosures was 0.49 ± 0.15/m2, while the mean density of saplings in control plots was 0.05 ± 0.02/m2. Within exclosures, 35% of saplings were less than 1 m and 65% were greater than 1 m; within control plots, 97% of saplings were less than 1 m in height. The fact that little regeneration had occurred in control plots suggests that deer herbivory can substantially reduce the rate of recovery of woody riparian species within degraded riparian corridors. Exclusionary fencing has demonstrated promising results for riparian restoration in a region with intense deer herbivory.

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Ecological Approaches to Riparian Restoration in Northeast Oregon

Cited by 19 publications

References 0 publications

Linking hydrologic, physical and chemical habitat environments for the potential assessment of fish community rehabilitation in a developing city

Linking hydrologic, physical and chemical habitat environments for the potential assessment of fish community rehabilitation in a developing city

Restoration of Riparian Areas Following the Removal of Cattle in the Northwestern Great Basin

Deer Herbivory as an Ecological Constraint to Restoration of Degraded Riparian Corridors

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