15 research outputs found
Estimates of β for the logit link function based on best and univariate models for tiger probability of habitat use (ψ<sub>1-km</sub>) within acacia plantations in central Sumatra for landscape covariates.
<p><u>Note</u>:</p><p>*indicates strong or robust impact, that is 95% confidence intervals as defined by ±1.96×SE not overlapping 0; italics indicate opposite from <i>a priori</i> prediction. AltDEM = altitude; Precip = precipitation;Dtwater = distance to freshwater body; dtfedge07 = distance to forest edge; dtpacr = distance to centroid of protected areas; Dtmprd = distance to major public road; dtf05cr = Distance to nearest centroid of forest block greater than 50,000 ha.</p
Top models (<i>w</i><sub>i</sub>>0) for tiger probability of habitat use (ψ<sub>1-km</sub>) in central Sumatra across all landcover types in the landscape based on detection history data collected at transect sites (n = 1857, 1-km transects) in six landcover types.
<p>Note: Psi = probability of site occupancy/habitat use; p = probability of detection; thta0 = spatial dependence parameter - probability that the species is present locally, given the species was not present in the previous site; thta1 = spatial dependence parameter -probability that a species is present locally, given it was present at the previous site. LCCode = landcover code; AltDEM = Altitude; Precip = Precipitation; dtwater = distance to freshwater; Dtfedge07 = distance to forest edge; dtf05cr = Distance to nearest centroid of forest block greater than 50,000 ha; dtpacr = distance to centroid of protected area; Dtmprd = Distance to major public road; LCFor = forest(1) or nonforest(0).</p
Summary of survey effort and detection of tigers in five landcover types in Riau Province, central Sumatra.
<p>*number of sites where the species was detected divided by total number of sites surveyed.</p
Estimates of β for the logit link function based on best and univariate models for tiger probability of habitat use (ψ<sub>1-km</sub>) in all landcover types in central Sumatra for manual covariates.
<p>Note:</p><p>*indicates strong or robust impact, that is 95% confidence intervals as defined by ±1.96×SE not overlapping 0; italics indicate opposite from <i>a priori</i> prediction. Overall = overall vegetation cover.</p
Estimates of β for the logit link function based on best and univariate models for tiger probability of habitat use (ψ<sub>1-km</sub>) within acacia plantations in central Sumatra for manual covariates.
<p><u>Note</u>:</p><p>*indicates strong or robust impact, that is 95% confidence intervals as defined by ±1.96×SE not overlapping 0; italics indicate opposite from <i>a priori</i> prediction.</p
Estimates of β for the logit link function based on best and univariate models for tiger probability of habitat use (ψ<sub>1-km</sub>) within acacia plantations in central Sumatra for plantation-specific manual covariates.
<p><u>Note</u>:</p><p>*indicates strong or robust impact, that is 95% confidence intervals as defined by ±1.96×SE not overlapping 0; italics indicate opposite from <i>a priori</i> prediction.</p
Estimates of β for the logit link function based on best and univariate models for tiger probability of habitat use (ψ<sub>1-km</sub>) within forest areas in central Sumatra for landscape covariates.
<p><u>Note</u>:</p><p>*indicates strong or robust impact, that is 95% confidence intervals as defined by ±1.96×SE not overlapping 0; italic indicates opposite from <i>a priori</i> prediction. AltDEM = altitude; Precip = precipitation; Dtwater = distance to freshwater; dtfedge07 = distance to forest edge; dtpacr = distance to centroid of protected areas; Dtmprd = distance to major public road;dtf05cr = Distance to nearest centroid of forest block greater than 50,000 ha.</p
Estimates of β for the logit link function for landscape covariates extracted using GIS based on best and univariate models for tiger probability-of-occupancy (ψ<sub>17×17 km</sub>).
<p><u>Note</u>:</p><p>*indicates strong or robust impact, that is 95% confidence intervals as defined by ±1.96×SE not overlapping 0; italics indicate opposite from <i>a priori</i> prediction. AltDEM = Altitude; dtf05cr =  Distance to nearest centroid of forest block greater than 50,000 ha; For07Area = Area of forest in the grid cell based on 2007 data; Dtpacr = distance to centroid of protected area; Def0607 = Deforested area from 2006 to 2007 in each grid cell; Precip = Precipitation; Dtmprd = Distance to major public road.</p
Map of probability of tiger occupancy in the central Sumatra landscape.
<p>This map is constructed from the best occupancy model developed based on the landscape-scale survey in 17×17 km grid cells representing forest and other major landcover types.</p