Featured Collection Introduction: The Emerging Science of Aquatic System Connectivity I

Jones, C. Nathan; Nelson, Natalie; Smith, Lora L.

doi:10.1111/1752-1688.12739

Cited by 3 publications

(3 citation statements)

References 52 publications

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“…Streams and lakes are interconnected throughout the riverscape (e.g., Jones 2010; Covino 2017); however, empirical research on stream connections to lakes has been somewhat limited (e.g., review in Jones et al 2019). Small lakes (defined here as < 1 km 2 ) can have many small inflow streams that are tightly connected to riparian environments through shading and terrestrial subsidies (Richardson and Sato 2015), such as sources of sediments and nutrients.…”

Section: Introductionmentioning

confidence: 99%

The influence of stream tributaries to lakes and upstream forest harvest on benthic, lake delta communities

Becu

Michalski

Richardson

2023

Can. J. Fish. Aquat. Sci.

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Lake deltas (LDs) receive nutrient and energy subsidies from upstream habitats. These inputs can support LD benthic production. However, LDs may also receive impacts from upstream disturbance. Small lakes in coastal British Columbia often have inflow streams from areas with forest harvesting, which is pervasive in this region. Forest harvesting impacts can alter stream production, although downstream impacts on lakes, compared to streams, are less studied and understood. We aimed to test whether benthic LD communities (biofilm and invertebrates) are more productive and/or diverse compared to other communities along the lakeshore (LS) (non-LDs), and whether there are differences in LD communities associated with upstream harvesting. We compared LD communities with upstream riparian areas that were harvested (HLD) or relatively undisturbed (ULD), and LS sites. We found that while community structure was similar across sites, ULDs had higher biofilm and invertebrate standing stocks (1.5- and 2-times higher, respectively) than HLDs and LS sites. Our results suggest subsidies and benthic production were higher at ULDs. These results advance our understanding of forest harvesting disturbance and stream-lake connectivity.

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Section: Introductionmentioning

confidence: 99%

The influence of stream tributaries to lakes and upstream forest harvest on benthic, lake delta communities

Becu

Michalski

Richardson

2023

Can. J. Fish. Aquat. Sci.

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“…The science of aquatic systems connectivity has developed rapidly over the past 20 years (Jones, Nelson, et al 2019). Research spans the different forms and functions of connectivity (hydrologic, biogeochemical, and biological) at vastly different spatial scales and hydrologic settings (Larsen et al 2012;Bracken et al 2013;Harvey and Gooseff 2015;U.S.…”

Section: Introductionmentioning

confidence: 99%

“…Environmental Protection Agency 2015;Cohen et al 2016;Covino 2017;Fritz et al 2018;Wohl et al 2019). This collection, The Emerging Science of Aquatic Systems Connectivity II, includes eight papers focused on aquatic system connectivity and follows the featured collection The Emerging Science of Aquatic Systems Connectivity I (Jones, Nelson, et al 2019). The papers in both collections are products of the 2017 American Water Resources (AWRA) Specialty Conference, Connecting the Dots: The Emerging Science of Aquatic System Connectivity, which took place in May 2017 in Snowbird, Utah.…”

Section: Introductionmentioning

confidence: 99%

Featured Collection Introduction: The Emerging Science of Aquatic System Connectivity II

Smith

Jones

Nelson

2019

J American Water Resour Assoc

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Forest harvesting impacts on small, temperate zone lakes: a review

2023

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Small lakes (< 1 km2) are physically, chemically, and biologically linked to their watersheds through hydrologic, terrestrial, and aerial delivery of materials. Inputs affecting lake function and structure, such as nutrient, energy, sediment, and large wood subsidies, arrive at the lake on three spatial scales, i.e., the lake watershed, lake-inflow streams, and lake riparian areas. Lakes are sinks in the waterscape and integrate cumulative inputs from the landscape. Lakes can therefore react to landscape disturbances such as forest harvesting. Forest harvesting and associated activities can induce changes in watershed water yields, inputs of organic and inorganic materials to lakes, and in lake temperatures and wind. These changes result in stressors that can alter the lake’s physical habitat, water quality, and food webs. Here we review the reported impacts of forest harvesting on small, temperate zone lakes. The magnitude of the lake response to harvesting can depend on factors such as the proportion of the watershed harvested, the intensity of this harvesting, silvicultural practices and other activities, and road construction and density. Other additional factors include the proximity of the lake to harvesting and its impact on hydrological pathways connecting perturbed areas to stream and lake systems. The majority of surveyed studies reported short-term increases in nutrient and energy inputs, increased sedimentation due to harvesting, and increases in wind speeds, where about half reported increases in primary production or decreases in zooplankton biomass. Results on benthic macroinvertebrate, fish, and amphibians were less frequently reported and were geographically variable. Variation in the direction and magnitude of a lake’s food web response is likely due to studies of lakes with differences in watershed characteristics and forestry activities that can affect the magnitude of the lake response (i.e., proportion of watershed harvesting, forestry operations methods, hydrological connections to the lake, and site-specific attributes). We also discuss watershed forestry management and the implementation of lakeshore riparian buffers in the context of reducing forestry impacts on lakes. Most studies have been short-term, and the long-term, cumulative effects of forest harvesting on lake ecosystems remain unclear.

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Featured Collection Introduction: The Emerging Science of Aquatic System Connectivity I

Cited by 3 publications

References 52 publications

The influence of stream tributaries to lakes and upstream forest harvest on benthic, lake delta communities

The influence of stream tributaries to lakes and upstream forest harvest on benthic, lake delta communities

Featured Collection Introduction: The Emerging Science of Aquatic System Connectivity II

Forest harvesting impacts on small, temperate zone lakes: a review

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