Assessing temporal shifts in lotic fish community structure in the upper Red River basin, Oklahoma

Starks, Trevor A.; Rodger, Anthony W.; King, Donnie; Skoog, Matthew

doi:10.1080/02705060.2017.1420703

Cited by 7 publications

(17 citation statements)

References 32 publications

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“…Inference was carried out using 999 bootstrap resampling iterations. ManyGLM fits a model for each species (Wang et al 2012) and the likelihood ratios of the models are summed as Sum-of-LR, which can be found in the univariate test statistics (McCain et al 2016;Starks et al 2018). Univariate LR statistics were used to determine the species, which contributed to the community differences the most in order of their contribution rank.…”

Section: Discussionmentioning

confidence: 99%

Testing the effects of ecologically extinct mammals on vegetation in arid Australia: A long‐term experimental approach

et al. 2021

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The loss of species from ecosystems can have cascading impacts on species interactions and ecosystem function. Australia has experienced the greatest loss of mammals globally in the past 200 years, but we know little of how the loss of this suite of ecosystem engineers and herbivores has affected vegetation. We used a threatened mammal reintroduction sanctuary to investigate effects of ecologically extinct mammals on plant assemblages. First, we tested the net effects of mammals using a long-term exclusion experiment within the sanctuary. Second, we used a three-year disturbance experiment to determine the relative roles of herbivory and physical disturbance in driving changes in plant assemblages. Third, we compared outcomes inside and outside the sanctuary to determine how effects of reintroduced mammals differed from contemporary mammal assemblages. Plant species richness was greatest in mammal exclusion plots and declined across all treatments from 2011 to 2018, probably due to drought. Plant composition changed in response to mammal exclusion, with six species increasing significantly, shrubs and myrmecochorous plants becoming more common and large-seeded species less common. Responses to experimental disturbance were less clear. Grass and resprouters were more common, and palatable and large-seeded plants were less common outside the sanctuary (exposed to contemporary mammal assemblage). Our study shows that reintroductions of ecologically extinct mammals have substantial impacts on plant assemblages, both through ecosystem engineering and herbivory, and these impacts differ from those of contemporary mammal faunas, suggesting that pre-European Australian ecosystems were markedly different from contemporary ecosystems.

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Section: Discussionmentioning

confidence: 99%

Testing the effects of ecologically extinct mammals on vegetation in arid Australia: A long‐term experimental approach

et al. 2021

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“…are sensitive to extreme low flows affecting fragmented riverscapes (Kelsch, 1994;Pennock et al, 2017;Perkin et al, 2013;. Pelagic-benthic spawning fishes such as emerald shiner (and perhaps silver chub) are extirpated from reaches upstream of dams in the Arkansas and Ninnescah rivers (Pennock et al, 2018;Perkin, Gido, Costigan, et al, 2015) and are frequently absent from the same fragments of river as pelagic-broadcast spawning fishes (Perkin, Gido, Cooper, et al, 2015;Starks, Rodger, King, & Skoog, 2018). These patterns suggest that pelagic-spawning species in general, both pelagic broadcast and pelagic benthic, are sensitive to fragmentation.…”

Section: Discussionmentioning

confidence: 99%

“…Still, inference from taxonomy suggests that Macrhybopsis spp. Pelagic-benthic spawning fishes such as emerald shiner (and perhaps silver chub) are extirpated from reaches upstream of dams in the Arkansas and Ninnescah rivers (Pennock et al, 2018;Perkin, Gido, Costigan, et al, 2015) and are frequently absent from the same fragments of river as pelagic-broadcast spawning fishes (Perkin, Gido, Cooper, et al, 2015;Starks, Rodger, King, & Skoog, 2018). Pelagic-benthic spawning fishes such as emerald shiner (and perhaps silver chub) are extirpated from reaches upstream of dams in the Arkansas and Ninnescah rivers (Pennock et al, 2018;Perkin, Gido, Costigan, et al, 2015) and are frequently absent from the same fragments of river as pelagic-broadcast spawning fishes (Perkin, Gido, Cooper, et al, 2015;Starks, Rodger, King, & Skoog, 2018).…”

Section: Recruitmentmentioning

confidence: 99%

Extreme drought causes fish recruitment failure in a fragmented Great Plains riverscape

Perkin

Starks²,

Pennock

et al. 2019

Ecohydrology

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Dryland stream fishes are adapted to highly connected habitats with unpredictable hydrologic conditions, including frequent low flows and sometimes extreme drought.The low flow recruitment hypothesis predicts that some fishes spawn in main channel habitats during low flows when water temperatures and prey densities are high.However, extreme low flows during drought periods might be disruptive even among fishes whose life histories otherwise benefit from lower flows. We studied recruitment dynamics of six fishes (family Cyprinidae) at 15 sites in a fragmented Great Plains riverscape in Kansas, USA, during 2 years of extreme drought. We tracked the chronology of gonadal development and age 0 recruitment to test the hypothesis that recruitment by fishes that broadcast spawn planktonic ova would be less successful compared with fishes that spawn demersal or adhesive ova. We found all six taxa were reproductively active but recruitment was evident for only four.The two species for which recruitment was not evident, peppered chub (Macrhybopsis tetranema) and silver chub (Macrhybopsis storeriana), are confirmed or suspected pelagic-broadcast spawning fishes that have declined in other fragmented and dewatered Great Plains riverscapes. Our data highlight the potential for extreme low flows within isolated stream fragments to cause complete or near-complete recruitment failure for pelagic-broadcast spawning fishes, especially those with small population sizes. Failed recruitment during extreme drought may be related to spawning mode, ova characteristics, or both. Our work informs management of fish diversity in drought-prone riverscapes by establishing mechanistic linkages among extreme drought, fish recruitment, and assemblage structure.

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“…We found stream fish occurrence relationships with all five flow-regime elements. Taylor et al, 1993;Starks et al, 2018). The upper Red River catchment has harsher environmental conditions and increased streamflow variability (Woods et al, 2004(Woods et al, , 2005 Eley et al, 1981 andcreek chub, Nagrodski et al, 2013) were negatively associated with landscape disturbance and streamflow variability.…”

Section: Discussionmentioning

confidence: 99%

Increased landscape disturbance and streamflow variability threaten fish biodiversity in the Red River catchment, USA

Mollenhauer

Mouser

Roland

et al. 2022

Diversity and Distributions

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Aim Stream fish distributions are hypothesized to be strongly associated with landscape characteristics at multiple scales. Variation in flow regimes and intensity of landscape disturbance are associated with stream fish distributions; however, relationships are poorly understood in many high‐diversity regions. Our objective was to identify occurrence relationships between fish distributions and streamflow and landscape characteristics in the south‐central United States. Location Our study area was the central Red River catchment in Oklahoma, Texas and Arkansas, USA. Methods We used existing fish surveys to model the occurrence of a diverse, warmwater assemblage among hydraulic response units (HRUs). We used multispecies occupancy modelling to identify variation in occurrence probability among 111 stream fishes in relation to landscape disturbance and flow regime characteristics. Results We found occurrence relationships with landscape disturbance and 11 metrics comprising all flow‐regime components. The relationships varied within both major species groups and some genera. Frequency and duration were the most common metrics underlying flow regime relationships. More common stream fishes tended to be positively associated with higher levels of landscape disturbance and flow regime metrics representing variability; conversely, narrow‐ranged fishes tended to be negatively associated. Occurrence relationships with flow metrics representing high‐flow events were predominately negative. As expected, many species were strongly associated with ecoregion with landscape disturbance and flow relationships held constant. Main conclusions Our study informs land use and water management decisions and stream fish conservation at multiple spatial scales. Collectively, the findings suggest potential homogenization of the Red River fish assemblage with increased landscape disturbance and streamflow variability. A reduction in landscape disturbance and maintenance of natural flow patterns at coarser scales may benefit endemic and narrow‐ranged fishes. Our findings also help guide finer‐scale land use and water management decisions by identifying stream network areas with a high occurrence probability of less tolerant fishes.

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Assessing temporal shifts in lotic fish community structure in the upper Red River basin, Oklahoma

Cited by 7 publications

References 32 publications

Testing the effects of ecologically extinct mammals on vegetation in arid Australia: A long‐term experimental approach

Testing the effects of ecologically extinct mammals on vegetation in arid Australia: A long‐term experimental approach

Extreme drought causes fish recruitment failure in a fragmented Great Plains riverscape

Increased landscape disturbance and streamflow variability threaten fish biodiversity in the Red River catchment, USA

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