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Supplement 1. Software applications used to calculate the nestedness metrics of the present paper.

<h2>File List</h2><blockquote> <p><a href="matrix.zip">matrix.zip</a></p> <blockquote> <p>Contains files: </p> <p><a href="MatrixManual.pdf">MatrixManual.pdf</a><br> <a href="Mat.exe">Mat.exe</a><br> <a href="Matrix.exe">Matrix.exe</a><br> <a href="Mat.f90">Mat.f90</a><br> <a href="Matrix.f90">Matrix.f90</a> </p> </blockquote> <p><a href="nestedness.zip">nestedness.zip</a></p> <blockquote> <p>Contains files:</p> <p><a href="NestednessManual.pdf">NestednessManual.pdf</a><br> <a href="Nestedness.exe">Nestedness.exe</a><br> <a href="Nestedness.f90">Nestedness.f90</a></p> </blockquote> </blockquote><h2>Description</h2><blockquote> <p>The files contain software applications and descriptions (pdf files) of the nestedness and the matrix programs. Source code is written in MS Fortran 90. </p> </blockquote

Appendix D. PCA loadings for vegetation data.

PCA loadings for vegetation data

Appendix F. Diagnostics for multiple regression analyses of geographic gradients in ant species density.

Diagnostics for multiple regression analyses of geographic gradients in ant species density

Supplement 1. Data matrices and source codes of the software used in the paper.

<h2>File List</h2><blockquote> <p><a href="Matrices.txt">Matrices.txt</a></p> <p><a href="SourceCodes.txt">SourceCodes.txt</a></p> </blockquote><h2>Description</h2><blockquote> <p>Matrices.txt contains raw data and references to 185 real abundance matrices used in the present paper. SourceCodes.txt consists of source code of Matrix.exe and CoOcurrence.exe. </p> </blockquote

Supplement 1. Delphi source code and compiled program for nonstationary matrix model projection.

File List MarixGrowthProject.exe- stand-alone executable version of nonstationary matrix growth model MatrixGrowth.zip- Delphi source code for nonstationary matrix growth model Description The MatrixGrowthProject.exe iterates population growth and population size structure, for either stationary or nonstationary matrix models. In a series of tabbed input screens, the user supplies an initial transition matrix and size vector, with an optional variance-covariance matrix and regression parameters an external environmental driver. The MatrixGrowth.zip file contains 35 Delphi files that contain the source code for the components of this program. The source code is compiled in Delphi 6.0. </blockquote

Appendix C. Statistical methods.

Statistical methods

Appendix B. Sampling methods.

Sampling methods

Appendix A. Physical characteristics of the study sites.

Physical characteristics of the study sites

Appendix E. Presence-absence matrices for bog and forest ants.

Presence-absence matrices for bog and forest ants