Neighbourhood-Linkage

OREPs Home Range

OREP (Objective-Restricted-Edge Polygons) range outlines are based on peripheral neighbour linkages that are less than an outlier-exclusive distance (OED), which is computed from the distribution of density estimates for all locations. By including in this approach a boundary strip based on the tracking resolution, the resulting concave polygons are accompanied by grid cells arofcund the peripheral locations.

New Linear Analyses

e.g. for rivers and hedgerows

Fish must stay within the river, therefore it is important that distances are measured along the river. Look at how the cluster on the lighter blue tributary is not joined to that in the main (darker) river - becuase the distance to that must include down the tributary and up the river.

New Speed 10 x faster

and no MSDOS windows

Instead, progress is shown on a log screen (top) and the resulting graphics are shown in the Display tab and values are output to Stats Viewer (bottom) spreadsheet

New Map Maker

Create your own vector maps by digimousing over an image (jpg, gif), such as an aerial photo and make a map just for your project. The ability to zoom in means that complex shapes can be made.

New Graphics Features

Thickenning lines, colouring by group, showing only the habitat in range. The image opposite shows the lines thickened and coloured by range attribute "sex".

Animation

You can visually follow one animal's movements over time. You can change the number of locations connected, the speed and thickness of the line. This can be really useful when looking at how animal movements are related to each other, which will then guide you in more quantitative analyses.

New Graphics Export

Simply click on a print button to grab the vector elements that can then be pasted as an enhanced metafile into other packages, allowing further modifcation, e.g. in Microsoft's Office suite. The figure (right) shows an image being cut from ranges and pasted into MSWord.

Graphics Windows

You can enlarge the graphics for closer inspection, e.g. see dispersal detector graph in figure to right.