Wetted width and depth

Includes all field measurements of wetted width and depth

Substrate

Contains three excel sheet tabs: "indvar_substrate_select", "indvar_riffle_character", "substrate_profile". First, "indvar_substrate_select" corresponds to the evaluation of individual sampler bias in substrate selection at a point along a transect. Second, "indvar_riffle_character" corresponds to the evaluation of individual variation in Wolman pebble counts of a riffle. Third, "substrate_profile" refers to the Wolman pebble counts downstream of each dam

Dam size and river network context relative to other dams in the river network (number of upstream dams, distance to nearest upstream dam, height of 1^st upstream dam, and drainage area).

<p>Input variables for univariate regressions were standardized to multiples of mean width, except for drainage area, for the Upper Neosho and Lower Cottonwood rivers, respectively.</p

Channel widening, downstream, upstream, and total footprint for each dam.

<p>* footprint is estimated based on available data</p><p>Downstream footprints were determined by measuring the distribution of median substrate size (D₅₀) from riffles downstream of dam (see Figs <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141210#pone.0141210.g006" target="_blank">6</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141210#pone.0141210.g008" target="_blank">8</a>). Extent of channel widening, and upstream footprints were determined using aerial photography. Footprints are expressed in terms of multiples of mean wetted width, with kilometers in parentheses. The mean wetted width used in calculations was 0.022 km for the Neosho River and 0.035 km for the Cottonwood River.</p

Low-head Dam Footprints.

<p>Downstream (black bars) and upstream (gray bars) footprints of six dam sites and the average downstream and upstream footprints in the Neosho River network. The dashed lines are averages.</p

Date of construction, primary purpose, and drainage area for dams on the Upper Neosho and Lower Cottonwood rivers.

<p>Drainage area is cumulative, including parts of the catchment upstream of Council Grove and Marion reservoirs (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141210#pone.0141210.g002" target="_blank">Fig 2</a>).</p

Map of the Upper Neosho River network.

<p>Map of our study area in the Upper Neosho river network (A) located in Kansas. Also shown are (B) six dam sites and two undammed reference sites along the Upper Neosho River and Lower Cottonwood Rivers. Major U.S. Army Corps of Engineers (USACE) reservoirs in the study river network are labeled for reference.</p

Depth.

<p>Longitudinal profiles of depth for the six dams in the study reach showing upstream (left) and downstream (right) samples for our six study dams (black trapezoid). (A) Riverwalk, (B) Correll, (C) Ruggles, (D) Emporia, (E) Cottonwood Falls, and (F) Soden. Y axis arrows indicate mean depth. Small arrows in panel indicate footprint based on substrate size profiles (see section on <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141210#sec010" target="_blank">substrate size</a> for details). <i>P-values</i> from Wilcoxon rank sum test for mean differences between upstream and downstream transects are shown. Asterisk indicates significance with Bonferroni corrected α = 0.01 (0.05 divided by five dams).</p

Wetted Width.

<p>Longitudinal profiles of wetted width for the six dams in the study reach showing upstream (left) and downstream (right) samples for our six study dams (black trapezoid); (A) Riverwalk, (B) Correll, (C) Ruggles, (D) Emporia, (E) Cottonwood Falls, and (F) Soden. Y axis arrows indicate mean wetted width. Small arrows in panel indicate footprint based on substrate size profiles see section on <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141210#sec010" target="_blank">substrate size</a> for details. <i>P-values</i> from Wilcoxon rank sum test for mean differences between upstream and downstream transects are shown. Asterisk indicates significance with Bonferroni corrected α = 0.01 (0.05 divided by five dams).</p