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Additional Information

Competing Interests

The author declares that he has no competing interests.

Author Contributions

Martin Jung conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper.

Data Deposition

The following information was supplied regarding the deposition of related data:

Sourcecode of the program can be downloaded for free at and at


The development of this software was partly self-funded and partly supported by the Universidade de Évora, Departamento de Biologia, Unidade de Biologia da Conservaçao given by Giovanni Manghi. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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