21 research outputs found
Lynx kill rate (number of killed roe deer per 30 days) in relation to roe deer density index (roe deer pellet groups per 10 m<sup>2</sup>).
<p>Females with kittens (black dots and thick line), males (open circles and thin line) and solitary females (grey dots and thick grey line). The horizontal lines indicate mean kill rates for the three categories of lynx, and the vertical lines indicate the 95% confidence intervals of the mean (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120570#pone.0120570.t003" target="_blank">Table 3</a>). The thin dotted lines (the upper line females with kittens and the lower line solitary lynx) indicate the Type II functional response from Nilsen et al. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120570#pone.0120570.ref019" target="_blank">19</a>].</p
Eurasian lynx kill rate on roe deer (number of roe deer kill per 30 days) and the number of days on a roe deer kill from south-central Sweden 1996–1999.
<p>Mean ± S.E., and sample size within brackets.</p><p>Eurasian lynx kill rate on roe deer (number of roe deer kill per 30 days) and the number of days on a roe deer kill from south-central Sweden 1996–1999.</p
Roe deer density index (mean roe deer pellet groups per 10 m<sup>2</sup> = 0.239 ± 0.095 st.dev, thick line in both upper and lower part of the graph), roe deer harvest (mean number of roe deer harvested within Grimsö wildlife research area (130 km<sup>2</sup>) = 46.1 ± 28.2 st.dev., thin line upper part), snow depth (mean accumulated snow depth (cm) = 2299 ± 1503 st.dev, dashed line upper part), vole density index (mean number of voles caught per 100 trap nights = 0.596 ± 0.667 st.dev, thin line lower graph), red fox index (mean number of red fox dens with Grimsö Wildlife Research Area with cubs = 6.0 ± 2.26 st.dev, dashed line lower graph).
<p>All values are standardized value (x<sub>i</sub>—mean(x) / st.dev(x)). The vertical grey lines indicate the year (1996) of lynx re-colonization of Grimsö wildlife research area.</p
Models evaluating the variation in roe deer growth rate within Grimsö Wildlife Research Area 1985–2005, based on Akaike information criterion (corrected for sample size, AICc) and including only models with a ΔAICc < 2, as well as the null model.
<p><sup>a</sup>—Lynx coded as 1 after lynx colonization in 1996 and as 0 before 1996.</p><p><sup>b</sup>—Roe deer growth rate = 0.46 (± 0.17 S.E.)- 0.29 (± 0.10 S.E.) * Lynx—1.19 (± 0.54 S.E.) * Roe deer density index.</p><p>Models evaluating the variation in roe deer growth rate within Grimsö Wildlife Research Area 1985–2005, based on Akaike information criterion (corrected for sample size, AICc) and including only models with a ΔAICc < 2, as well as the null model.</p
The predicted (± 95% confidence limits) roe deer growth rate (r) in relation to roe deer density index (number roe deer pellet groups per 10 m<sup>2</sup>) and the effect of lynx re-colonization (upper line indicates the before lynx re-colonization (1985–1995) and the lower line after lynx re-colonization (1996–2005)).
<p>The black dot shows the mean roe deer density and predicted roe deer growth rate before lynx re-colonization and the open dot shows mean roe deer density and predicted roe deer growth rate after lynx re-colonization.</p
The study areas at three nested spatial scales.
<p>Lynx were captured and roe deer surveys were performed at the largest spatial scale (8000 km<sup>2</sup>, thick black line). The number of lynx and roe deer were known within the medium-sized area (2000 km<sup>2</sup>, thick light grey line). Long-term wildlife surveys were performed within Grimsö wildlife research area (130 km<sup>2</sup>, dark grey polygon). The three female (thin black line) and four male (thin black dotted line) lynx home ranges within sub-area in winter 1998/1999, as well as some other examples of female (thin dark grey line) and male (thin dark grey dotted line) lynx home ranges within the largest study area. County borders are also given on both maps.</p
Models evaluating the variation in Eurasian lynx kill rate on roe deer based on Akaike information criterion (corrected for sample size, AICc) and including only models with a ΔAICc < 2, as well as the null model from south-central Sweden 1996–1999.
<p>Three kinds of functional responses were evaluated; Type 0—no functional response, Type 1—linear functional response and Type II—non-linear functional response.</p><p><sup>a</sup>—Solitary females coded as 1, family groups and males coded as 0.</p><p><sup>b</sup>—Summer coded as 0 and winter as 1.</p><p><sup>c</sup>—Males coded as 1, solitary females and family groups coded as 0.</p><p>Models evaluating the variation in Eurasian lynx kill rate on roe deer based on Akaike information criterion (corrected for sample size, AICc) and including only models with a ΔAICc < 2, as well as the null model from south-central Sweden 1996–1999.</p
Habitat-specific risk of lynx predation (mean ± 95% CI) at the spatial and temporal scales of home-ranges and seasons at Grimsö Wildlife Research Area in 1997-2007.
<p>Neutral risk of predation is equal to one (i.e. a line following the x-axis).</p
Habitat selection by roe deer at the spatial and temporal scales of home-ranges and seasons in relation to habitat availability at Grimsö Wildlife Research Area in 1984-2007.
<p>Trend-lines in figures illustrate the relationship between habitat selection and habitat availability for habitats in which this relationship was different from zero (the relationship between habitat selection and habitat availability was corrected for repeated observations of the same individuals). Random use is equal to one (i.e. a line following the x-axis).</p
Dataset_2_MatingSeasonHomeRanges
Data used for analysis of lynx mating and non-mating season home range size as detailed in the Methods section in the paper. Variables are explained in the ReadMe file