Conservation of Aquatic Biodiversity in the Context of Multiple‐Use Management on National Forest System Lands

Roper, Brett B.; Capurso, James M.; Paroz, Yvette M.; Young, Michael K.

doi:10.1002/fsh.10168

Cited by 12 publications

(11 citation statements)

References 65 publications

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“…Dams provide a multitude of benefits to society and will undoubtedly remain an important solution to power demand, water security, navigation, and other factors (Ho et al 2017). Maximizing the biological diversity remaining in rivers will continue to be an important conservation strategy in many regions of the world (Roper et al 2018, Rouillard et al 2018, Stephenson et al 2019). Our finding of significant effects of both area and vegetation cover diversity suggests that fisheries managers in the Trent River could be justified by guarding against demographic consequences of small population sizes to maximize fish diversity in river fragments.…”

Section: Discussionmentioning

confidence: 99%

The species–area relationship for a highly fragmented temperate river system

et al. 2021

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Despite the importance of species-area relationships (SARs) to conservation, SARs in humanfragmented rivers have received little attention. Our aim was to test for the presence and strength of SARs for littoral fish assemblages of an extensively dammed river in south-central Ontario, Canada, and to examine long-running hypotheses for the drivers of SARs. Twenty-six navigational dams with locks built between 1837 and 1913 occur along the 160 km length of the Trent River examined in this study. We evaluated the relationship between richness and fragment area, and then used linear models to test whether the area per se, habitat diversity, or other hypotheses were best supported by the data. A power-function relationship with area explained 46% of the variation in fish species richness, and the slope (z = 0.4) was high compared with SARs reported from other ecosystems, indicating that species accumulated rapidly with an increase in fragment area. Multi-predictor models suggested that area was significantly related to richness, but that vegetation cover diversity had a stronger relative effect. The slope of our SAR may indicate that there is a high degree of isolation between populations in different fragments, even though the lock system reportedly allows some passage of organisms. Our findings also suggest that mitigating against local extinction due to small population sizes (i.e., area effects), and enhancing aquatic vegetation cover may be viable strategies for promoting species diversity in the study river. Studies of SARs in fragmented rivers may offer additional benefits to supporting restoration planning where efforts are being made to increase species diversity.

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Section: Discussionmentioning

confidence: 99%

The species–area relationship for a highly fragmented temperate river system

et al. 2021

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“…The 154 national forests and 20 national grasslands that constitute the 78.1‐million‐ha (193‐million‐acre) National Forest System (NFS) contain some of the nation's healthiest and most intact aquatic ecosystems, providing abundant clean water, high‐quality fisheries, and aquatic biodiversity strongholds (Figure ; Roper et al. , this issue). The USFS' mission also extends beyond the NFS boundaries.…”

Section: Importance Of the Us Forest Service In Conserving The Natimentioning

confidence: 99%

“…National forests and grasslands also provide some of the best—and often the only—remaining habitat for imperiled fish and other aquatic species (Roper et al. , this issue).…”

Section: Importance Of the Us Forest Service In Conserving The Natimentioning

confidence: 99%

Historical Perspectives and a New U.S. Forest Service Strategy for Fish and Aquatic Stewardship

et al. 2018

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The U.S. Forest Service has a long, rich history of helping to steward the nation's fish and aquatic resources and contributing to the broader fish and aquatic conservation and scientific community in the United States and worldwide. The agency recently updated its national strategy for fish and aquatic resource stewardship. The new strategy builds on 30 years of lessons learned through implementing the agency's original Rise to the Future: National Fish and Aquatic Strategy, the first national freshwater fisheries strategy by a federal agency. It also addresses 21st century challenges, establishing a stronger foundation for integrated aquatic resource stewardship throughout the agency and renewing an emphasis on cooperation with local, state, federal, and tribal governments and partnering with nongovernmental organizations, private landowners and water users, private businesses, the sportfishing industry, and others. The new strategy outlines six goals that provide a robust framework to guide future efforts: (1) conserve fish and aquatic resources; (2) connect people to the outdoors through fishing, boating, and other aquatic activities; (3) strengthen partnerships and work across boundaries; (4) deliver and apply scientific research; (5) build capacity through mentoring and training; and (6) communicate the value of fish and aquatic resources.

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“…In this way, multiple management actions can be prioritized and management actions determined (Regan et al, 2005). The wide range of inputs arising from the inclusion of scientific, political, social and economic stakeholder perspectives may, however, lead to the formulation of excess or conflicting management objectives (Roper et al, 2018). It is possible that convoluted problems may result in any agreeable solution being deemed better than no solution at all (Saaty, 1990;Game et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

The dominating influence of efficacy above management strategy in the long-term success of alien plant clearing programmes

Cheney

Esler

Foxcroft

et al. 2020

Journal of Environmental Management

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Conservation managers are required to make decisions in complex and uncertain contexts. To strengthen the robustness of conservation decisions, several approaches have been proposed to facilitate stakeholder engagement in the setting of conservation objectives and priority actions. While such processes have led to the formulation of several invasive alien plant management strategies to achieve specific objectives, the long-term consequences and trade-offs inherent in these strategies have not been tested. The performance of five of these strategies over 50 years was tested in the protected area context using empirical data from Table Mountain National Park, South Africa. A simulation model based on data for invasive Acacia species in a fire-driven ecosystem, focused on the interaction between strategy performance and clearing efficacy in achieving a management goal or reducing Acacia density to below 1 plant per hectare. At near perfect levels of clearing efficacy, all strategies converged towards reaching the management goal, while at lower efficacy levels the strategies diverged in their ability to achieve desired outcomes. Despite working across the largest area, strategies that focussed on clearing low density invasions, maintained the least area in a maintenance state over time. In contrast, strategies that focussed on a mix of post-fire, low density areas and high altitude areas cleared less area annually, but maintained a much larger area in a maintenance state. At higher levels of efficacy, strategies that return to previously worked areas were more successful than a post-fire strategy. Strategies that focused solely on securing water, performed poorly in maintaining low overall density of aliens. However, the influence of efficacy was significant and substantial and a much larger difference in area reaching the management goal was achieved by varying efficacy than varying strategy. As such, improving quality of work and implementation will have a far greater effect than which areas are prioritized or how this prioritization is done. While acacias are likely to persist in the long-term, improving work quality coupled with correct strategy selection will ensure continued gains in the area under maintenance and improved return on investment over time.

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Conservation of Aquatic Biodiversity in the Context of Multiple‐Use Management on National Forest System Lands

Cited by 12 publications

References 65 publications

The species–area relationship for a highly fragmented temperate river system

The species–area relationship for a highly fragmented temperate river system

Historical Perspectives and a New U.S. Forest Service Strategy for Fish and Aquatic Stewardship

The dominating influence of efficacy above management strategy in the long-term success of alien plant clearing programmes

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