Fish community dynamics following dam removal in a fragmented agricultural stream

Kornis, Matthew S.; Weidel, Brian C.; Powers, Stephen M.; Diebel, Matthew W.; Cline, Timothy J.; Fox, Justin M.; Kitchell, James F.

doi:10.1007/s00027-014-0391-2

Cited by 44 publications

(35 citation statements)

References 64 publications

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“…Of the four case studies found in the published literature, three of these confirmed that invasive fish spread upstream of the former dam site (Gottgens, ; Kornis et al ., ; Marion, ), but the fourth did not observe an upstream invasion (Stanley et al ., ). Marion () found nonnative Alabama spotted bass ( Micropterus henshalli ), which can hybridize and compete with native redeye bass ( M. coosae ), upstream of the removed Woodside dams on Twelvemile Creek in South Carolina.…”

Section: Evaluating the Cmcsmentioning

confidence: 97%

“…However, the magnitude of impact, if any, of the spotted bass invasion was not known. In the case of the removal of Big Spring Dam from Big Spring Creek in Wisconsin, nonnative white sucker ( Catostomus commersonii ) and Yellow Perch ( Perca flavescens ) quickly invaded upstream and became a major portion of the fish population, while the native Mottled Sculpin ( Cottus bairdii ) population decreased by more than half (Kornis et al ., ). In the Ottawa River in Ohio, the removal of Secor Dam coincided with the spread of invasive round goby ( Neogobius melanostomus ), a potentially harmful and difficult‐to‐contain invasive fish (Corkum et al ., ).…”

Section: Evaluating the Cmcsmentioning

confidence: 99%

“…First, the duration of post‐removal monitoring, where it has occurred at all, may be too short. Biological communities may require several years to stabilize following dam removal (Kornis et al ., ; but see Tullos et al ., ), with the response time for fish being longer than that of other biota such as macroinvertebrates (Maloney et al ., ). While short‐term shifts in fish assemblages may be evident, long‐term shifts may continue to develop over time (Poulos et al ., ).…”

Section: Evaluating the Cmcsmentioning

confidence: 99%

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Synthesis of Common Management Concerns Associated with Dam Removal

Tullos

Collins

Bellmore

et al. 2016

J American Water Resour Assoc

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Managers make decisions regarding if and how to remove dams in spite of uncertainty surrounding physical and ecological responses, and stakeholders often raise concerns about certain negative effects, regardless of whether these concerns are warranted at a particular site. We used a dam‐removal science database supplemented with other information sources to explore seven frequently raised concerns, herein Common Management Concerns (CMCs). We investigate the occurrence of these concerns and the contributing biophysical controls. The CMCs addressed are the following: degree and rate of reservoir sediment erosion, excessive channel incision upstream of reservoirs, downstream sediment aggradation, elevated downstream turbidity, drawdown impacts on local water infrastructure, colonization of reservoir sediments by nonnative plants, and expansion of invasive fish. Biophysical controls emerged for some of the concerns, providing managers with information to assess whether a given concern is likely to occur at a site. To fully assess CMC risk, managers should concurrently evaluate site conditions and identify the ecosystem or human uses that will be negatively affected if the biophysical phenomenon producing the CMC occurs. We show how many CMCs have one or more controls in common, facilitating the identification of multiple risks at a site, and demonstrate why CMC risks should be considered in the context of other factors such as natural watershed variability and disturbance history.

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Section: Evaluating the Cmcsmentioning

confidence: 97%

Section: Evaluating the Cmcsmentioning

confidence: 99%

Section: Evaluating the Cmcsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of Common Management Concerns Associated with Dam Removal

Tullos

Collins

Bellmore

et al. 2016

J American Water Resour Assoc

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“…To combat some of these effects, river managers, scientists, and non-governmental organizations have argued for management plans to ameliorate the effects of impoundment on watershed connectivity. In some instances, dam removal has been the preferred option as it provides the more robust opportunity for re-establishing sediment and hydrologic connectivity (Grant and Lewis, 2015;Foley et al, 2017;Major et al, 2017) while also having immediate impacts ecologically by permitting fish passage (Kornis et al, 2014;Pess et al, 2014;Magilligan et al, 2016a) or by providing the necessary sedimentological conditions for enhancing spawning habitat (Magilligan et al, 2016b). In instances where removal is not an option, watershed managers have advocated for environmental flows (Bunn and Arthington, 2002;Arthington et al, 2006) to best mimic the natural flow regime (Poff et al, 1997) with the goal of re-establishing greater hydrologic connectivity especially across the riparian zone to maintain floodplain forest communities (Rood et al, 2005) or to generate longitudinal and lateral sediment connectivity and bar formation (Schmidt et al, 2001;Topping et al, 2005).…”

Section: Connectivity Flow Regulation and River-floodplain Infrastrumentioning

confidence: 99%

Connectivity as an emergent property of geomorphic systems

Wohl

Brierley

Cadol

et al. 2018

Earth Surf Processes Landf

247

195

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Connectivity describes the efficiency of material transfer between geomorphic system components such as hillslopes and rivers or longitudinal segments within a river network. Representations of geomorphic systems as networks should recognize that the compartments, links, and nodes exhibit connectivity at differing scales. The historical underpinnings of connectivity in geomorphology involve management of geomorphic systems and observations linking surface processes to landform dynamics. Current work in geomorphic connectivity emphasizes hydrological, sediment, or landscape connectivity. Signatures of connectivity can be detected using diverse indicators that vary from contemporary processes to stratigraphic records or a spatial metric such as sediment yield that encompasses geomorphic processes operating over diverse time and space scales. One approach to measuring connectivity is to determine the fundamental temporal and spatial scales for the phenomenon of interest and to make measurements at a sufficiently large multiple of the fundamental scales to capture reliably a representative sample. Another approach seeks to characterize how connectivity varies with scale, by applying the same metric over a wide range of scales or using statistical measures that characterize the frequency distributions of connectivity across scales. Identifying and measuring connectivity is useful in basic and applied geomorphic research and we explore the implications of connectivity for river management. Common themes and ideas that merit further research include; increased understanding of the importance of capturing landscape heterogeneity and connectivity patterns; the potential to use graph and network theory metrics in analyzing connectivity; the need to understand which metrics best represent the physical system and its connectivity pathways, and to apply these metrics to the validation of numerical models; and the need to recognize the importance of low levels of connectivity in some situations. We emphasize the value in evaluating boundaries between components of geomorphic systems as transition zones and examining the fluxes across them to understand landscape functioning. © 2018 John Wiley & Sons, Ltd.

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“…This has led to some debate about leaving barriers in place or even adding them to the landscape to protect native fishes [76,113]. In one case, the removal of a dam in Wisconsin, USA, resulted in increased competition and more intense predation from previously absent species in stream fish communities [77]. Given their importance to fish distribution, barriers and network structure should be explicitly included in models of fish community structure to determine the best conservation value for taxonomic, functional, and phylogenetic aspects of diversity [114].…”

Section: Barriers To Dispersal and Movementmentioning

confidence: 99%

The Interplay Between Landscape Structure and Biotic Interactions

Zarnetske

Baiser

Strecker

et al. 2017

Curr Landscape Ecol Rep

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Landscape structure and biotic interactions are closely linked. We identify five aspects of landscape structure that contribute to the co-occurrence of species and restrict or enable different types of biotic interactions: patch size and habitat amount, isolation of patches, barriers to dispersal and movement, persistence of landscape structure, and landscape complexity. In addition, these aspects of landscape structure influence the strength and outcome of biotic interactions. Whereas most research focuses on the effects of the abiotic environment on species and their biotic interactions, research on foundation species and ecosystem engineers demonstrates the important influence of biotic interactions on landscape structure itself, including effects on landscape complexity, extent of habitat, and the structure of landscape features. In this review, we describe ecological theories that lay the foundation for interplay between landscape structure and biotic interactions, and summarize these connections across an array of interacting species in freshwater, marine, and terrestrial systems. We end with suggestions for integrating the fields of landscape ecology and community ecology to better understand the connections between landscape structure and biotic interactions and better predict their dynamics in light of global change.

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Fish community dynamics following dam removal in a fragmented agricultural stream

Cited by 44 publications

References 64 publications

Synthesis of Common Management Concerns Associated with Dam Removal

Synthesis of Common Management Concerns Associated with Dam Removal

Connectivity as an emergent property of geomorphic systems

The Interplay Between Landscape Structure and Biotic Interactions

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