DOI: 10.5061/dryad.474qt46
title: Data from: Anthropogenic land‐use change intensifies the effect of low flows on stream fishes

description: 1. As ecosystems experience simultaneous disturbances, it is critical to
 understand how multiple stressors interact to affect ecological change.
 Land-use change (LUC) and extreme flow events are two important stressors
 that could interact to affect fish populations. 2. We evaluated the
 individual and interactive effects of discharge and LUC associated with
 oil and natural gas development (ONGD) on populations of two stream fishes
 over a seven-year period. We used repeated-state (i.e., abundance trends)
 and rate (i.e., colonization and persistence) responses to advance our
 understanding of flow-ecology relationships in a multiple-stressor
 framework. 3. Overall, fish abundance, colonization, and persistence
 declined in association with discharge. The effect of LUC associated with
 ONGD differed between species, with the abundance of Mottled Sculpin
 declining and Mountain Sucker increasing. We found both synergistic and
 antagonistic interactions between discharge and LUC. LUC intensified the
 effect of low flows for one species and lead to greater variability in
 responses to flows for the other species. These differences between
 species’ responses are likely due to differences in their physiological
 tolerances and behavioral adaptations to disturbance. 4. Synthesis and
 applications. Our research provides empirical evidence for the complex
 interactions that can arise between discharge and anthropogenic LUC.
 Management efforts (e.g., silt fences, vegetation replanting, and
 in-stream restoration) to mitigate the effects of anthropogenic
 alterations and promote high-quality refuge habitats could help mitigate
 the effect of hydrologic extremes. Further development of flow-ecology
 relationships in a multiple-stressor framework will help guide management
 of stream fishes, and provide a better understanding of the mechanisms
 underlying flow-ecology relationships for different species.06-Sep-2019
description: Fontenelle
 DischargeThis data file contains
 average daily discharge in cubic meters per second from the Fontenelle
 Creek USGS gage for each water year (#09210500; 35 km downstream of
 sites). Because discharge metrics were highly correlated (r = 0.79-0.99;
 see Table S1 in Supporting Information), and we did not have site-specific
 discharge, we used average discharge from the Fontenelle Creek gage as our
 global hydrologic metric and extended available discharge to an entire
 “water year” (Fig. 3; e.g., 10-01-2011 to 09-30-2012 represented 2012
 discharge).FontenelleDischarge.xlsxWyomingRangeFishAbundance12_18This data file contains the abundance of mottled sculpin and mountain sucker collected in pass 1 using backpack electrofishing (Smith-Root LR-24, Vancouver, WA, USA) at 64, 100-meter sites in the Wyoming Range between 2012 and 2018. In addition, this file contains the percentage land-use change at the site- and catchment-level scales and the average discharge in the current year and the previous year.WyomingRangePresenceAbsence12_18This data file contains the presence (1) or absence (0) of mottled sculpin and mountain sucker collected using backpack electrofishing (Smith-Root LR-24, Vancouver, WA, USA) at 64, 100-meter sites in the Wyoming Range between 2012 and 2018. In addition, this file contains the percentage land-use change at the site-level scale and the average discharge in the current year.