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Article

Soil-Related Predictors for Distribution Modelling of Four European Crayfish Species

1
Department of Geography, Faculty of Chemistry, Biology, Geography, West University of Timisoara, Vasile Pârvan 4 Bd., 300223 Timisoara, Romania
2
Institute of Biology Bucharest, Romanian Academy, Splaiul Independenței 296, 060031 Bucharest, Romania
3
Department of Biology-Chemistry, Faculty of Chemistry, Biology, Geography, West University of Timisoara, Pestalozzi 16A, 300115 Timisoara, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Vasileios Tzanakakis
Water 2021, 13(16), 2280; https://doi.org/10.3390/w13162280
Received: 25 July 2021 / Revised: 14 August 2021 / Accepted: 18 August 2021 / Published: 20 August 2021
(This article belongs to the Special Issue Climate, Water, and Soil)
One of the most critical challenges in species distribution modelling is testing and validating various digitally derived environmental predictors (e.g., remote-sensing variables, topographic variables) by field data. Therefore, here we aimed to explore the value of soil properties in the spatial distribution of four European indigenous crayfish species. A database with 473 presence and absence locations in Romania for Austropotamobius bihariensis, A. torrentium, Astacus astacus and Pontastacus leptodactylus was used in relation to eight digitalised soil properties. Using random forest modelling, we found a preference for dense soils with lower coarse fragments content together with deeper sediment cover and higher clay values for A. astacus and P. leptodactylus. These descriptors trigger the need for cohesive soil river banks as the microenvironment for building their burrows. Conversely, species that can use banks with higher coarse fragments content, the highland species A. bihariensis and A. torrentium, prefer soils with slightly thinner sediment cover and lower density while not influenced by clay/sand content. Of all species, A. astacus was found related with higher erosive soils. The value of these soil-related digital descriptors may reside in the improvement of approaches in crayfish species distribution modelling to gain adequate conservation measures. View Full-Text
Keywords: Astacus astacus; Austropotamobius bihariensis; Austropotamobius torrentium; Pontastacus leptodactylus; spatial ecology Astacus astacus; Austropotamobius bihariensis; Austropotamobius torrentium; Pontastacus leptodactylus; spatial ecology
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MDPI and ACS Style

Dornik, A.; Ion, M.C.; Chețan, M.A.; Pârvulescu, L. Soil-Related Predictors for Distribution Modelling of Four European Crayfish Species. Water 2021, 13, 2280. https://doi.org/10.3390/w13162280

AMA Style

Dornik A, Ion MC, Chețan MA, Pârvulescu L. Soil-Related Predictors for Distribution Modelling of Four European Crayfish Species. Water. 2021; 13(16):2280. https://doi.org/10.3390/w13162280

Chicago/Turabian Style

Dornik, Andrei, Mihaela C. Ion, Marinela A. Chețan, and Lucian Pârvulescu. 2021. "Soil-Related Predictors for Distribution Modelling of Four European Crayfish Species" Water 13, no. 16: 2280. https://doi.org/10.3390/w13162280

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