Robust top-100 EDGE species for tetrapods with IUCN Red List assessments.

<p>Robust top-100 EDGE species for tetrapods with IUCN Red List assessments.</p

Comparison of imputed squamate ED and EDGE scores with fully phylogeny-derived ED and EDGE scores.

<p>(A) ED scores for all squamates, imputed from the 4,161-species phylogeny of Zheng and Wiens [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0194680#pone.0194680.ref063" target="_blank">63</a>] using our new imputation method, against the median ED scores from Tonini et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0194680#pone.0194680.ref043" target="_blank">43</a>]; (B) EDGE ranks for all squamates with non-Data Deficient Red List assessments, calculated from our imputed ED scores against EDGE ranks calculated from the median ED scores from Tonini et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0194680#pone.0194680.ref035" target="_blank">35</a>]. Solid black line in each plot shows modelled relationship with 95% confidence intervals in blue.</p

Relative performance of the three ED imputation methods.

<p>Proportion of reference ED captured when ED is imputed from: (A) congeners and (B) confamiliars for all phylogenies combined. Horizontal thin black line represents a line with an intercept of one (signifying 100% correspondence to original ED score), and a slope of zero (no change in proportion of reference ED predicted); the ideal performance of an imputation method. The thicker black line shows the modelled relationship between proportion of species removed and proportion of reference ED score estimated. 95% confidence intervals are presented but obscured by the regression line. Grey points represent one species from one iteration.</p

Detectability curves and minimum required survey efforts calculated using a Poisson model for detections.

<p>Detectability curves for each of Borneo's felid species were plotted using Eq. 1 and minimum survey efforts calculated using Eq. 2 with a “confidence” of 90% and per-trial probability of success estimated using <i>d</i> (captures per 100 camera trap nights). Solid lines use median <i>d</i> from bootstrap samples of camera trap data obtained from previous studies (with shading corresponding to the 95% quantiles of <i>d</i> from bootstrap samples) and dashed lines use <i>d</i> obtained in the current study using random survey locations (except for flat-headed cat, which was not detected by camera-trapping in our study). For each detectability curve, survey efforts required for 90% confidence are indicated with dot-dash lines and annotated on the axes. Note that the x-axis is not consistent across panels.</p

Probability density functions for bootstrapped values of detection frequency (<i>d</i>) derived from previous camera-trapping studies.

<p>Data for each of Borneo's felid species were obtained from 34 studies conducted between 1998 and 2011 and bootstrap randomisations (n = 10,000) were stratified according to study site. Each panel shows the probability density function obtained by kernel density estimation, the median <i>d</i> from bootstrap samples (solid line) and <i>d</i> obtained in the current study, using strictly random survey locations (dashed line). Dotted lines for bay cat and leopard cat show <i>d</i> calculated after excluding off-trail survey locations. Note that the x-axis is not consistent across panels.</p

Locations sampled using camera traps within the Kalabakan Forest Reserve, Malaysian Borneo.

<p>Camera traps were deployed at random locations (black points) within 1.75 ha plots (white rectangles), clustered into three groups placed deliberately to control for elevational effects. Shaded areas lie outside the Kalabakan Forest Reserve and are composed of the Brantian-Tatulit Virgin Jungle Reserve (to the south) and the Ulu Segama Forest Reserve (to the north). Inset shows the location of Kalabakan Forest Reserve (red outline) within the Malaysian state of Sabah, northern Borneo.</p

Wild felid species recorded from the Kalabakan Forest Reserve, Sabah, Malaysia.

<p>Direct sightings are incidental records obtained during the course of fieldwork (August 2010 to August 2011). Independent captures from camera trap image sequences are of different individuals or images obtained more than 1 hour apart. Detection frequency <i>d</i> is the number of captures per 100 camera trap nights. Naive occupancy is the proportion of sampled locations at which the species was detected.</p