Advancing environmental flows approaches to streamflow depletion management

Lapides, Dana; Maitland, Bryan M.; Zipper, Samuel C.; Latzka, Alexander W.; Pruitt, Aaron; Greve, Rachel

doi:10.1016/j.jhydrol.2022.127447

Cited by 21 publications

(19 citation statements)

References 152 publications

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“…Therefore, our results capture the effects of snowmelt effects to some extent, but the dynamics by which the snow melts (e.g., in a single, high‐intensity event vs. spread out across multiple, smaller events) can certainly mediate streamflow responses to snowmelt and should be addressed in future studies that make use of hydrologic streamflow models. Second, we did not explicitly account for management actions or perturbations that could affect surface water runoff (local geology, impervious surfaces, wetland restoration, and reservoirs) or groundwater inflow (withdrawal from wells, or best management practices for groundwater recharge) into streams, which can mediate effects on stream flow and water temperature (Lapides et al, 2022) and in turn aquatic biota (Stelzer et al, 2022). Ultimately, intrinsic drivers of population dynamics (intraspecific density dependence feedbacks) should be integrated with extrinsic drivers (interspecific interactions, streamflow, temperature, and management) over the entire life cycle of freshwater animals to explain variation in demography and thus predict population responses to environmental change (Bassar et al, 2016; Kovach et al, 2016; Letcher et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…We defined for seasons preceding annual trout surveys that represent important time periods for trout life history: summer (June–August), autumn (September–November), winter (December–February), and spring (March–May). These periods generally reflect the adult pre‐spawning, adult spawning, egg incubation, and fry‐hatching and ‐rearing periods for stream trout in the northern hemisphere (Behnke, 2010; Kovach et al, 2016; Lapides et al, 2022), respectively. Environmental data were offset to recruitment years using appropriate time lags; for example, trout survey data from summer 2010 were matched to environmental data from summer and autumn of 2009, winter of 2009–2010, and spring of 2010 to reflect conditions leading up to a recruitment survey.…”

Section: Methodsmentioning

confidence: 99%

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Shifting climate conditions affect recruitment in Midwestern stream trout, but depend on seasonal and spatial context

Maitland

Latzka

2022

Ecosphere

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Climate change is a complex threat to freshwater ecosystems. Effects on aquatic species will likely differ among populations depending on seasonal and spatial context, which makes a detailed understanding of population responses to shifting climate conditions key to guiding strategic decision‐making. However, few empirical studies have tested for such context dependency on distinct populations across seasons or at large spatial scales. We used 26 years of standardized survey data on recreationally and economically important brook trout (Salvelinus fontinalis) and brown trout (Salmo trutta) in Wisconsin, USA to assess short‐ and long‐term variability in population trends, and quantify the influence of seasonal and spatial climate variability (air temperatures and precipitation) on annual recruitment strength (as indexed by young‐of‐year [YOY] relative abundance in summer). Some short‐term population fluctuations were spatially consistent across the state, indicative of broadscale environmental forcing. Over the longer term, average YOY and age 1 and older brook trout relative abundance has declined since 2006, especially for YOY, while brown trout abundance has substantially increased. The effects of climate conditions on recruitment varied by species, season, and latitude. Increasing maximum summer temperatures were associated with lower brook trout recruitment, but higher brown trout recruitment. The effect for both species was stronger at lower latitudes. Spring temperatures were positively related to brown trout recruitment at lower latitudes; in mid‐latitude and northern streams, they were related to increasing recruitment up to about 1 standard deviation, above which recruitment declined. High and low winter and spring precipitation were associated with precipitous declines in recruitment for both species. By contrast, summer precipitation was positively related to recruitment in northern streams for brook trout and southern streams for brown trout. Our results demonstrate that shifts in climate can affect recruitment in similar species differently depending on temporal (seasonal) and spatial (warm, southern regions compared with cool, northern regions) context. Given trout population trends in Wisconsin and climate projections for the Midwestern United States, location‐ and species‐specific management actions are needed that account for this context dependency. Management should aim to maximize the resiliency of populations to extreme climate conditions by buffering negative influences on recruitment.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Shifting climate conditions affect recruitment in Midwestern stream trout, but depend on seasonal and spatial context

Maitland

Latzka

2022

Ecosphere

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“…Native brook trout/maazhamegoons and introduced brown trout/ namegos are coldwater species that support stream fisheries across Wisconsin. Both species rely on coldwater temperatures (Lyons et al, 2010;Wehrly et al, 2007), sustained groundwater inputs (Lyons et al, 2009) (Lapides et al, 2022), and improvements in land use to improve groundwater recharge have been instrumental in recovering coldwater streams in the Driftless Area, which is now projected to be a region of high resistance and resilience to climate warming (Mitro et al, 2019). Stream channel restoration has been used to narrow and deepen channels to help conserve coldwater as it flows downstream, and riparian shading has helped further maintain coldwater temperatures in streams (Cross et al, 2013;Gaffield et al, 2005).…”

Section: Resisting Stream Trout/maazhamegoons Loss Through Stocking L...mentioning

confidence: 99%

“…Watershed‐scale management has been pursued across the state and includes promoting best management practices in agricultural land use such as no‐till or contour plowing for row crops, rotational grazing of grasslands, enrollment of environmentally sensitive lands in the Conservation Reserve Program, public acquisition of private lands for protection, and limiting impervious surfaces to reduce erosion and facilitate groundwater infiltration. Cold groundwater inputs to streams are critical to maintaining cold thermal conditions suitable for trout (Lapides et al, 2022), and improvements in land use to improve groundwater recharge have been instrumental in recovering coldwater streams in the Driftless Area, which is now projected to be a region of high resistance and resilience to climate warming (Mitro et al, 2019). Stream channel restoration has been used to narrow and deepen channels to help conserve coldwater as it flows downstream, and riparian shading has helped further maintain coldwater temperatures in streams (Cross et al, 2013; Gaffield et al, 2005).…”

Section: Resisting Ecosystem Changementioning

confidence: 99%

Resist‐accept‐direct (RAD) considerations for climate change adaptation in fisheries: The Wisconsin experience

Feiner

Shultz

Sass

et al. 2022

Fisheries Management Eco

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Decision-makers in inland fisheries management must balance ecologically and socially palatable objectives for ecosystem services within financial or physical constraints. Climate change has transformed the potential range of ecosystem services available. The Resist-Accept-Direct (RAD) framework offers a foundation for responding to climate-induced ecosystem modification; however, ecosystem trajectories and current practices must be understood to improve future decisions. Using Wisconsin's diverse inland fisheries as a case study, management strategies for recreational and subsistence fisheries in response to climate change were reviewed within the RAD framework. Current strategies largely focus on resist actions, while future strategies may need to shift toward accept or direct actions. A participatory adaptive management framework and co-production of policies between state and tribal agencies could prioritise lakes for appropriate management action, with the goal of providing a landscape of diverse fishing opportunities. This knowledge co-production represents a process of social learning requiring substantial investments of funding and time.

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“…Drought indicators best capture the hydrological impacts of streamflow depletionLow flow metrics, such as 7-day low flow, are commonly used in management contexts(Lapides, Maitland, et al, 2022). Whilst 7-day minimum flow was impacted at many sites in the dry climate scenario, low flow duration and deficit were more consistently impacted; the maximum fraction of sites with 7-day minimum flow impacts is smaller than the 25th percentile for duration and deficit signatures under all F I G U R E 8 Random forest prediction of where GAGES-II streams were predicted to see changes in each signature group within 50 years based on the dry climate and periodic pumping scenario.…”

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confidence: 99%

Identifying hydrologic signatures associated with streamflow depletion caused by groundwater pumping

Lapides

Zipper

Hammond

2023

Hydrological Processes

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Groundwater pumping can reduce streamflow in nearby waterways ('streamflow depletion'), a process which must be accounted for in integrated management of surface and groundwater resources. However, causal identification of streamflow depletion from hydrographs alone is challenging because pumping impacts are masked by other drivers of hydrologic variability. To identify potential indicators of streamflow depletion, we used synthetic hydrographs and an analytical streamflow depletion model to assess potential pumping impacts on specific hydrograph characteristics ('hydrologic signatures') for 215 streamgages spanning the conterminous United States (CONUS). We found that streamflow depletion commonly impacts signatures associated with seasonal and annual low flows and low flow recessions. The largest impacts occurred during dry years, suggesting streamflow depletion may be evident in dry years even where impacts are unmeasurable in wet years. Random forest models indicated that streamflow depletion could significantly impact Annual, Summer, and Fall signatures in most streams. Our finding that multiple hydrologic signatures are consistently responsive to streamflow depletion across CONUS suggests that the underlying hydrological processes linking pumping to streamflow reductions are consistent across diverse settings, information that will aid in identifying indicators of streamflow depletion from streamflow hydrographs.

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Advancing environmental flows approaches to streamflow depletion management

Cited by 21 publications

References 152 publications

Shifting climate conditions affect recruitment in Midwestern stream trout, but depend on seasonal and spatial context

Shifting climate conditions affect recruitment in Midwestern stream trout, but depend on seasonal and spatial context

Resist‐accept‐direct (RAD) considerations for climate change adaptation in fisheries: The Wisconsin experience

Identifying hydrologic signatures associated with streamflow depletion caused by groundwater pumping

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