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Título: | Determining the minimal background area for species distribution models: MinBAR package |
Autor: | Rotllán-Puig, Xavier CSIC ORCID; Traveset, Anna CSIC ORCID | Palabras clave: | Background area Calibration area Ecological niche model MaxEnt Species distribution models |
Fecha de publicación: | 1-ene-2021 | Editor: | Elsevier | Citación: | Ecological Modelling 439: 109353 (2021) | Resumen: | One of the crucial choices when modelling species distributions using pseudo-absences and background approaches is the delineation of the background area to fit the model. We hypothesise that there is a minimum background area around the geographical centre of the species distribution that characterises well enough the range of environmental conditions needed by the species to survive. Thus, fitting the model within this geographical area should be the optimal solution in terms of both quality of the model and execution time. MinBAR is an R package that calculates the optimal background area by means of sequentially fitting several concentric species distribution models (SDMs) until a satisfactory model in terms of the included metrics is reached. The version 1.1.2 is implemented for MaxEnt (using either maxnet or the original java program) and uses Boyce Index as a metric to assess models performance. Three case studies are presented to test the hypothesis and assess package's functionality. We show how partial models trained with part of the species distribution often perform equal or better than those fitted on the entire extent. MinBAR is a versatile tool that helps modellers to objectively define the optimal solution. | Versión del editor: | http://doi.org/10.1016/j.ecolmodel.2020.109353 | URI: | http://hdl.handle.net/10261/242777 | DOI: | 10.1016/j.ecolmodel.2020.109353 | Identificadores: | doi: 10.1016/j.ecolmodel.2020.109353 issn: 0304-3800 |
Referencias: | Rotllán-Puig, Xavier; Traveset, Anna; 2019; Determining the Minimal Background Area for Species Distribution Models: MinBar PACKAGE; BioRxiv; https://doi.org/10.1101/571182 . http://hdl.handle.net/10261/242774 |
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