Influence of urbanization on a karst terrain stream and fish community

Kollaus, Kristy A.; Behen, Kenneth P. K.; Heard, Thomas C.; Hardy, Thomas B.; Bonner, Timothy H.

doi:10.1007/s11252-014-0384-x

Cited by 20 publications

(20 citation statements)

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“…We accepted reported fish community data and corresponding relative abundances as representative of the reach if a study objective of the published or unpublished data was to quantify the fish community. Similar to other published studies (e.g., Perkin and Bonner 2011;Kollaus et al 2015), we acknowledge potential limitations in comparing relative abundances and community data among studies. Juvenile and adult fish were taken with seines or with seines and electrofishing; sampling took place in all available habitats within an area using multiple passes or a systematic number of singlepass seine hauls within an area, and sites were sampled once or multiple times over a year or more.…”

Section: Data Compilationmentioning

confidence: 54%

Rapid Assessment for Identifying Species of Greatest Conservation Need: Towards a Unified Approach

2019

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Identification of imperiled species ranges from rapid, qualitative, expert opinion‐based assessments to time‐intensive, quantitative assessments. The purpose of our study was to develop a methodology to rapidly quantify species of greatest conservation need by incorporating the concepts of resiliency, redundancy, and representation, which are used by the U.S. Fish and Wildlife Service to identify imperiled species. We compiled records of species occurrences (a measure of redundancy), commonality (a measure of representation), and reported absences (a measure of resiliency) for 50 species of fish within three ecoregions of the southwestern USA. We used multivariate analysis to describe interrelationships among reach, drainage, and region occurrences; percent rare occurrences; and percent absent among reaches. Weighted summations of species scores for principal component axes I and II were sorted from least (i.e., towards low redundancy, representation, and resiliency) to greatest, and species were ranked. With a few limitations, our methodology provided a revisable, documented, and transparent approach to aid in the identification of species of greatest conservation need.

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Section: Data Compilationmentioning

confidence: 54%

Rapid Assessment for Identifying Species of Greatest Conservation Need: Towards a Unified Approach

2019

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“…This point is relevant because anthropogenic alterations to riverscapes are not uniform through space or time (Allan, 2004 delivered to streams through urban drainage networks degrade the physical, chemical, and biological status of streams (Walsh et al, 2005). Despite increasing global investigations into urban stream syndrome (Booth, Roy, Smith, & Capps, 2016), diagnosing symptoms that manifest as fish assemblage response to urban stream syndrome can be challenging when the spatial distribution of sampling sites is not considered (Kollaus, Behen, Heard, Hardy, & Bonner, 2015). This is one reason why analyses of multiple spatial scales organized into hierarchical frameworks are successful at identifying ecological change (Fausch et al, 2002;Labbe & Fausch, 2000).…”

Section: Broad-scale Patternsmentioning

confidence: 99%

If you build it, they will go: A case study of stream fish diversity loss in an urbanizing riverscape

Perkin

Murphy

Murray

et al. 2019

Aquatic Conservation

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Stream fish diversity is threatened by anthropogenic environmental alterations to landscapes, and successful conservation requires knowledge of the processes that degrade diversity. A primary step in identifying diversity losses is the comparison between historical and contemporary states of landscapes and fish assemblages, but uncertainty remains regarding the appropriate spatial scales of investigation. Historical data collected in 1976 were paired with two years of contemporary replication (2015, 2016) to assess fish diversity change at 10 sites in Blackburn Fork, TN, USA. Analyses focused on a nested hierarchy of spatial scales, including sampling sites (fine scale), nested within stream orders (intermediate scale), nested within the entire catchment (broad scale). Diversity change between 1976 and 2015–16 was assessed using traditional diversity metrics (site scale) and rarefaction (stream‐order scale), whereas spatial variation in contemporary diversity (2015–16) was assessed with nonmetric multidimensional scaling (catchment scale). At the site scale, locations on the east side of Blackburn Fork and in close proximity to developed land experienced diversity loss. At the stream‐order scale, the effective number of species declined in first‐order streams where land development was concentrated, but no consistent species losses occurred in other stream orders. At the catchment scale, assemblages responded significantly to stream size but not land use, perhaps because diversity was already homogenized by 2015–16. Mapping 40 years of land‐use change across the catchment underscored a pattern of spatial alignment between developed lands and stream fish diversity loss. This study highlights the benefits of considering multiple spatial scales when assessing historical change in stream fish assemblages, and highlights stronger inference derived from historical comparisons relative to contemporary space‐for‐time substitutions. This framework combines recent analytical advances in rarefaction with a riverscape perspective, and can be applied to conserve streams, and their biota, in riverscapes around the world.

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“…22-23°C) of the Comal and upper San Marcos rivers of central Texas, USA (Linam, Mayes & Saunders, 1993;Schenck & Whiteside, 1976). This species associates with slack to moderate current velocities in vegetated areas containing silt substrates and open areas containing gravel and cobble substrates (Alexander & Phillips, 2012;Kollaus, Behen, Heard, Hardy & Bonner, 2015;Schenck & Whiteside, 1976). Co-occurring aquatic species include native red swamp crayfish, Procambarus clarkii (Girard; Hobbs, 1989;Taylor et al, 1996), native largemouth bass, Micropterus salmoides (Lacepède) and several Lepomis species.…”

Section: Introductionmentioning

confidence: 99%

Implications of piscine predator control on the federally listed fountain darter

Clark

Ostrand

Bonner

2017

Fisheries Management Eco

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One strategy for protecting the federally listed fountain darter, Etheostoma fonticola (Jordan & Gilbert), during low flow conditions is the removal of piscine carnivores [in this case, largemouth bass, Micropterus salmoides (Lacepède)]. However, headwater spring communities of the Comal and San Marcos rivers include another potential predator [red swamp crayfish, Procambarus clarkii (Girard)]. Removal of piscine carnivores could produce cascading effects by increasing crayfish consumption of benthic fish. The purpose of this study was to evaluate if piscine carnivore removal will lessen predatory pressure or induce a trophic cascade with crayfish increasing and causing declines in fountain darter. The numbers of fountain darter consumed were quantified among three predator treatments (red swamp crayfish only, largemouth bass only and red swamp crayfish and largemouth bass combined) and vegetation treatments (vegetated and non‐vegetated) at three temperature regimes (18, 22, 27°C). Vegetation had no effect on fountain darter predation. Among temperature trials, largemouth bass only and red swamp crayfish and largemouth bass combined consumed similar numbers of fountain darter, and red swamp crayfish only consumed the least numbers of fountain darter, except at 22°C. Largemouth bass did not consume more red swamp crayfish than fountain darter. Therefore, largemouth bass removal appears to be a viable option for reducing fountain darter predation during periods of low flow.

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Influence of urbanization on a karst terrain stream and fish community

Cited by 20 publications

References 74 publications

Rapid Assessment for Identifying Species of Greatest Conservation Need: Towards a Unified Approach

Rapid Assessment for Identifying Species of Greatest Conservation Need: Towards a Unified Approach

If you build it, they will go: A case study of stream fish diversity loss in an urbanizing riverscape

Implications of piscine predator control on the federally listed fountain darter

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