Biotas Alpha Version 0.10.16
(i.e. many functions are still offline):

What is Biotas
GIS and Statistics
File formats
System Requirements
Release Notes

What is Biotas:

Biotas is a software program for Windowsฎ 95/98/NT that was written as a statistical and GIS tool for ecologists and resource professionals. This program has been designed to assist in the analysis and understanding of spatial and temporal data from biogeographical and ecological studies including, but not limited to, those dealing with wildlife, fisheries, plant or animal ecology. Components of Biotas have been written to enhance the analysis and interpretation of data across a wide range of landscape and temporal scales.

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GIS and Statistics:

As a GIS program Biotas can import coverages for visual display or incorporation into analysis. Biotas goes beyond simple GIS by integrating spatial and temporal statistical analyses and simulation capabilities.

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File Formats:

Biotas accepts locational data (also known as point pattern data) as either query files or database tables in either *.dbf (DBase), *db (Paradox), *.xls (Excel) or ASCII file formats. Full SQL (Structured Query Language) use is supported as are full date and time variable formats. Biotas exports locational data variables in ASCII, *.dbf, and *db formats, as well as Windowsฎ clipboard copy and paste functions. Data matrices for preprocessed quadrate data will also be supported. Importation support for coverages currently is limited to ArcViewฎ shape files and *.dxf files. Biotas currently exports coverages (such as generated home range contours) as ArcView Shape files, ArcInfoฎ compatible text files or as *.dxf files. Biotas import and export functions will also eventually include other map file formats.

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A partial list of functions and analyses intended for inclusion in the first release of Biotas:

Import and query coverages • accounts for nested polygons • determine coverage shape and contiguity indices (perimeter to area ratio, fractal dimension, etc.) • create coverage subsets and intersections either temporarily or down load as a new coverage • change coverage or data file geographical projections (support for lat-long, Lambert, UTM, and others)
• Home Range and Land Use
utilization analysis • minimum convex polygon • peeling and cluster functions • harmonic mean • fixed and adaptive kernel • tessellations • circular buffers • export home range contours
• Habitat Analysis
find proportional habitat in a home range contour or coverage • standard Chi-squared tests • Johnson's nonparametric test • compositional analysis
• Nearest Neighbor Analysis
linear (streams, roads, etc.) and 2D functions • refined nearest neighbor analysis • reflexive nearest neighbor analysis
• Spatial Dispersion
spatial autocorrelation • spatial association • complete spatial randomness
• Model Fitting and Modeling
linear regression • nonlinear regression • temporal and spatial modeling • simulated landscapes • habitat models
• Additional Features
temporal autocorrelation • animal movement rates • spatial arrangement analysis • create data stratification • create data subsets • complete querying ability • do data transformations

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System Requirements:

586 or faster processor (686 or Pentium II recommended), Windows 95/98 or NT, 16 Megs RAM (32+ or more recommended), color VGA or SVGA monitor recommended, math coprocessor highly recommended.

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Release Notes:

Biotas is now available as an Alpha evaluation copy. You may Download Biotas here.

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