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A Practical Guide to Phylogenetics for Nonexperts
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COMPUTER PROGRAMS: d-novl: a program to simulate overlap between two niche-based distribution models.

Amy K Stockman1, Ryan M Danell, Jason E Bond

  • 1Department of Biology, East Carolina University, Howell Science Complex N211, Greenville, NC 27858, USA, Danell Consulting, 3717 Willow Run Dr, Greenville, NC 27858, USA.

Molecular Ecology Resources
|May 19, 2011
PubMed
Summary
This summary is machine-generated.

d-novl is a Monte Carlo program that generates a null expectation for niche-based distribution model overlap. It offers two growth algorithms to simulate species distribution patterns, aiding ecological research.

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Area of Science:

  • Ecology
  • Biogeography
  • Computational Biology

Background:

  • Niche-based distribution models are crucial for understanding species' spatial ecology.
  • Quantifying overlap between these models requires a null hypothesis to assess significance.
  • Existing methods may lack flexibility in simulating null overlap scenarios.

Purpose of the Study:

  • To introduce d-novl, a novel Monte Carlo program for ecological modeling.
  • To provide a tool for generating null expectations of overlap between niche-based distribution models.
  • To offer flexible simulation options for ecological research.

Main Methods:

  • d-novl employs Monte Carlo simulations to generate null distributions of overlap.
  • Two growth algorithms are implemented: 'separated' for disjointed areas and 'number of islands' for user-defined areas.
  • The program allows for the simulation of single or multiple growth areas.

Main Results:

  • The program generates probability distributions of expected overlap values.
  • These distributions serve as a null expectation for statistical comparisons.
  • Output is exportable to spreadsheets for further analysis.

Conclusions:

  • d-novl provides a valuable, flexible tool for assessing the statistical significance of niche model overlap.
  • The program enhances ecological research by offering a robust null hypothesis generation method.
  • d-novl is freely available for Mac and Windows users.