Using GIS and MaxEnt to predict global Distribution of Saxífraga catalàunica (Saxifragaceae) Authors Claudio Açaí Bracho Estévanez Abstract Knowledge about species occurrence is essential in terms of biogeographical and conservation research. Species distribution models provide basic information so as to predict vulnerability to local or global extinction or design nature preservation policies. GIS technologies and MaxEnt application have demonstrated respectively efficacy in terms of working with explicit spatial data and modelling species distributions. This paper takes advantage of GIS and MaxEnt to generate a global distribution model of a plant endemic to North-eastern Iberian Peninsula: the queen crown (Saxifraga catalaunica). This botanical taxon is listed as Near Threatened according with International Union for Conservation of Nature criteria. We produced a consistent model of queen crown distribution by working with only-presence data of target species and a set of five environmental layers. Our prediction reveals deep existing differences between two only known regions with presence of the taxon, as potential distribution is spatially heterogeneous both within and between studied natural parks. Future conservation efforts could focus on most isolated, vulnerable populations of this Iberian endemic taxon. Downloads Download data is not yet available. Downloads Text complet (Català) Published 2021-03-04 Issue Vol. 84: 2020 Section Gea, Flora et Fauna License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Butlletí de la Institució Catalana d'Història Natural authors accept the following terms:Authors assign to Institució de la Societat Catalana d’Història Natural (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Butlletí de la Institució Catalana d'Història Natural.Authors answer to Institució de la Societat Catalana d’Història Natural for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Institució de la Societat Catalana d’Història Natural declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal Butlletí de la Institució Catalana d'Història Natural is not responsible for the ideas and opinions expressed by the authors of the published articles.