Treesearch

As we reflect on the rich history of the American Fisheries Society (AFS), no greater inspiration emerges than the pioneering figure of our 47th president, Dr. Emmeline Moore. In addition to serving as the Society’s first woman president, her groundbreaking research in the fields of aquatic ecology, fish health, and watershed-based ecosystems irrevocably shaped fisheries research and management. She led the New York State Conservation Department (NYSCD), reminiscing “I had to be all things to all fishes”. She was similarly broad in her service to AFS as is demonstrated by her participation...

Watershed assessments have become common for prioritizing restoration in river networks. These assessments primarily focus on geomorphic conditions of rivers but less frequently incorporate non-geomorphic abiotic factors such as water chemistry and temperature, and biotic factors such as the structure of food webs. Using a dynamic food web model that integrates physical and ecological environmental conditions of rivers, we simulated how juvenile salmon (Oncorhynchus spp.) biomass responded to restoration at twelve sites distributed across the Methow River (Washington, USA), ranging from...

Species introductions threaten ecosystem function worldwide, and interactions among introduced species may amplify their impacts. Effects of multiple invasions are still poorly studied, and often, the mechanisms underlying potential interactions among invaders are unknown. Despite being a remote and well-conserved area, the southern portion of South America has been greatly impacted by invasions of both the American beaver (Castor canadensis) and Brown Trout (Salmo trutta fario). Here, we compared growth, condition, diet, and stable isotopes of sulfur δ34S, nitrogen δ15N, and carbon δ13C...

Discussions about diversity, equity, and inclusivity are becoming increasingly common in scientific societies. However, more concerted efforts are needed to recognize and challenge systemic discrimination to ensure scientists from marginalized groups can contribute to and benefit from scientific societies. Here, we evaluate efforts and opportunities within the Society for Freshwater Science (SFS) as examples for how scientific societies can make progress toward diversity, equity, and inclusivity. In 2017, SFS collected anonymous demographic information and open-ended feedback from SFS...

The legality of wood products often depends on their origin, creating a need for forensic tools that verify claims of provenance for wood products. The neotropical tree species Cedrela odorata (Spanish cedar) is economically valuable for its wood and faces threats of overexploitation. We developed a 140 SNP assay for geographic localization of C. odorata specimens. Target capture and short-read sequencing of 46 C. odorata specimens allowed us to identify 140 spatially informative SNPs that differentiate C. odorata specimens by latitude, temperature, and precipitation. We assessed the broad...

Salmon-derived nutrients (SDN) are a distinctive aquatic subsidy to terrestrial ecosystems. Streamwater nutrient increases in response to SDN have been documented but uncertainties about the magnitude and persistence of their effects in riparian areas remain. A key research gap is the response of specific soil types to the nutrient subsidy over time. To address this question, an Entisol and a Spodosol commonly found in riparian zones of Southeast Alaska were delineated adjacent to streams with abundant spawning salmon for experimental nutrient additions. Salmon nutrient additions were...

Many veterans returning from military deployment experience stress- or trauma-related symptoms that make reintegration with civilian society difficult. Nature exposure and outdoor recreation can be important parts of alternative and complementary approaches to reduce symptoms and build on veterans’ pre-existing strengths. Multiple outdoor programs now exist for veterans; many of these occur on federal public lands and present a variety of needs, opportunities, and challenges. This paper relies on interviews (n = 36) with public land managers, program providers and participants, health...

To respond to changing demands for outdoor experiences on public lands, managers and researchers specializing in outdoor recreation and tourism are calling for a shift in the way we think about, study, and manage recreation. New and updated conceptual frameworks and management tools are needed to guide agency decision-makers as they face complex and dynamic outdoor recreation management challenges. This article introduces a research strategy that seeks to align management needs with actionable research on sustainable recreation and tourism. We describe eight Research Focus Areas (RFAs)...

Elk are an iconic species in the Pacific Northwest. The animals are valued as a cultural resource by American Indian tribes, and elk viewing and hunting bring economic and social benefits to many rural communities. Elk forage on grasses, shrubs, and other early-seral vegetation. As timber harvests have declined on federal land in the region over the past 30 years, so has the availability of quality elk forage. At the same time, recreation and other public uses of federal land have increased. As a result, elk are turning to private lands for forage and refuge from human disturbance. This...

The past decade has seen a rapid rise in beaver-related stream restoration (BRR) using beavers and beaver dams (real or artificial) as a tool. Potential benefits of this low-cost, nature-based restoration approach include restoring aquatic and riparian habitat and recovering of threatened species dependent on it, im­proving water availability and stream flow regulation, reducing erosion and stream incision, and sup­porting climate change adaptation. Although the ecological restoration literature acknowledges the im­portance of addressing the human dimensions of restoration. there is a gap...