Estimated annual rates of change in sex and age ratios, mature bull abundance, and short-yearling abundance.

<p>Estimates of annual rates of change (λ) in mature bull:mature cow (B:C) and short-yearling:mature cow (Y:C) ratios and mature bull (B) and short-yearling (Y) abundance between 2002 and 2012 for 5 Game Management Subunits (GMSU) on the Seward Peninsula, Alaska, USA. Numbers in parentheses represent 95% confidence intervals. Bold numbers indicate estimated declines that do not include 0 in the 95% confidence interval.</p

Population counts and harvest levels for the 3 mainland populations of muskoxen in Alaska.

<p>Population counts for the Seward Peninsula (A), Northeastern (B), and Cape Thomson (C) muskox populations in Alaska, USA. Dashed lines delineate periods with substantial changes in harvest. Values indicate the average number of bulls harvested annually during each period, the average annual overall harvest rate as a proportion of the total population (in parentheses), and the exponential rate of growth during each period. Data sources: Seward Peninsula [this study,31], Northeastern <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0067493#pone.0067493-Reynolds2" target="_blank">[33]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0067493#pone.0067493-Lenart1" target="_blank">[35]</a>, Cape Thompson <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0067493#pone.0067493-Westing1" target="_blank">[32]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0067493#pone.0067493-Dau2" target="_blank">[47]</a>.</p

Muskoxen counts by Game Management Sub-Unit.

a<p>Values for 2010 and 2012 are the point estimates generated using distance sampling methods with 95% credible intervals shown in parentheses. Muskoxen counts by Game Management Sub-Unit for the 6 years during which all sub-units were surveyed between 2000 and 2012 on the Seward Peninsula, Alaska, USA.</p

Composition estimates for muskoxen on the Seward Peninsula, Alaska from 2002–2012.

<p>Estimates of muskoxen composition for 5 Game Management Subunits (GMSUs) on the Seward Peninsula, Alaska, USA from 2002 to 2012. Gray bars and stippled bars represent short-yearlings:100 adult cows and mature bulls:100 adult cows, respectively. Missing bars indicate years when composition surveys were not completed in a given GMSU. Error bars represent 95% Bayesian credible intervals.</p

Supplement 1. Raw data used for conducting occupancy analyses described in the main text.

<h2>File List</h2><div> <p><a href="WilsonES15-00250_Data1X.csv">WilsonES15-00250_Data1X.csv</a> (MD5: 4260aa42bde61b71cf63be033ad3b3ca)</p> <p><a href="WilsonES15-00250_Data2X.csv">WilsonES15-00250_Data2X.csv</a> (MD5: 089f465ab6a3e0adb8f4a8874b5e2fd9)</p> <p><a href="WilsonES15-00250_DataHX.csv">WilsonES15-00250_DataHX.csv</a> (MD5: 8cffdfcf96e690cfe878ab4079197845)</p> <p><a href="WilsonES15-00250_DataQX.csv">WilsonES15-00250_DataQX.csv</a> (MD5: e7adfb3c14eac758493cee316d8fdedc)</p> </div><h2>Description</h2><div> <p>The data files contain the raw data used for conducting occupancy analyses described in the main text. The grid scale is denoted in the file name. Missing values are denoted by the code -999, which was converted to NA for analysis. The fields are defined as follows.</p> <p><b>Unit</b>: Sample unit number</p> <p><b>V1</b>: Detection/Non-detection data for the first visit. 1 = detection, 0 = non-detection.</p> <p><b>V2</b>: Detection/Non-detection data for the second visit. 1 = detection, 0 = non-detection.</p> <p><b>V3</b>: Detection/Non-detection data for the third visit. 1 = detection, 0 = non-detection.</p> <p><b>Date1</b>: Julien day of the first visit.</p> <p><b>Date2</b>: Julien day of the second visit.</p> <p><b>Date3</b>: Julien day of the third visit.</p> <p><b>Elev</b>: Mean unit elevation (meters).</p> <p><b>Northness</b>: Mean unit cosine-transformed aspect (unitless). North = 1, South = -1, East and West = 0.</p> <p><b>Slope</b>: Mean unit slope (degrees)</p> </div

Reported harvest and realized harvest rates of mature bull muskoxen.

<p>Reported number of bull muskoxen harvested (#) and estimated realized harvest rates (Rate = [number harvested/estimated number available] X 100) in each Game Management Subunit on the Seward Peninsula, Alaska, USA between regulatory years (i.e., July1 of the current year-June 30 of the following year) 2000 and 2011. Missing harvest rate values indicate years without appropriate composition or abundance data.</p

NDVI_200

NDVI_20

SAVS

SAV

pcovariates

pcovariate

Counts2sp

Counts2s