A Convex Hull-Based Estimator of Home-Range Size

Worton, Bruce J.

doi:10.2307/2533254

Cited by 98 publications

(99 citation statements)

References 19 publications

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“…The adjusted polygon method generates the most precise results. Instead of removing unused/unsuitable areas from the 100%-MCP, a 95%-MCP, whereby a certain proportion of the outermost locations are exluded (Worton 1995), is another way of mitigating the effects of outliers. However, these lack any biological basis (White et al 1990).…”

Section: Discussionmentioning

confidence: 99%

Choice of analytical method can have dramatic effects on primate home range estimates

et al. 2008

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(2008Here, we propose an adjusted polygon method, whereby unsuitable and never visited areas are clipped out from the polygon, thus producing more accurate results. Compared to the grid cell method, the adjusted MCP is much more robust when the number of group relocations is limited; MCP turned out to be the method of choice for calculation of monthly and seasonal home ranges. The grid cell method on the other hand yielded the most precise estimates for total or annual home ranges. The style of ranging exhibited by a given primate taxon or population determines which analytical procedures should be applied to estimate home range size, and we would stress the need for thorough evaluation of the pros and cons of home range estimators before conducting field work and analysing data. yielded the most precise estimates for total or annual home ranges. The style of ranging a given primate taxon or population exhibits determines which analytical procedures shall be applied to estimate home range size, and we urge for a more thorough evaluation of pros and cons of home range estimators before conducting field work and analyzing data. Choice of an Analytical Method Can Have Dramatic Effects on Primate Home

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Section: Discussionmentioning

confidence: 99%

Choice of analytical method can have dramatic effects on primate home range estimates

et al. 2008

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“…Interpolated tracks were projected using a Lambert's equal-area azimuthal projection. Then, a utilization distribution (UD) was computed for each group in 'adehabitatHR', on a 5 × 5 km grid with a bivariate normal kernel (Worton 1995, Calenge 2006. We chose a smoothing parameter of 50 km (h), as this is roughly equivalent to the average distance traveled between GPS fixes.…”

Section: Spatial Distributionsmentioning

confidence: 99%

Ontogenetic changes in at-sea distributions of immature short-tailed albatrosses Phoebastria albatrus

Orben¹,

O'Connor²,

Suryan³

et al. 2018

Endang. Species. Res.

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“…Worton (1995aWorton ( , 1995b comments that a majority of papers surveyed used a minimal convex polygon or modified polygon estimator of home range but notes that these measures are sensitive to outliers, irrespective of the distribution of the inner points. He recommends a convex hull peeling method for indicating the general shape of the home range.…”

Section: Radio-taggingmentioning

confidence: 99%