Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance
Species distribution models (SDMs) are generally thought to be good indicators of habitat suitability, and thus of species’ performance, consequently SDMs can be validated by checking whether the areas projected to have the greatest habitat quality are occupied by individuals or populations with hig...
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| Дата: | 2021 |
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| Формат: | Стаття |
| Мова: | English |
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Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine
2021
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oai:ojs.akademperiodyka.org.ua:article-672023-03-22T18:55:36Z Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance Tytar, V. M. Baidashnikov, O. Vestia turgida terrestrial gastropods ecological niche modelling species distribution modelling model accuracy model evaluation model selection Bayesian additive regression trees ENVIREM data set Species distribution models (SDMs) are generally thought to be good indicators of habitat suitability, and thus of species’ performance, consequently SDMs can be validated by checking whether the areas projected to have the greatest habitat quality are occupied by individuals or populations with higher than average fitness. We hypothesized a positive and statistically significant relationship between observed in the field body size of the snail V. turgida and modelled habitat suitability, tested this relationship with linear mixed models, and found that indeed, larger individuals tend to occupy high-quality areas, as predicted by the SDMs. However, by testing several SDM algorithms, we found varied levels of performance in terms of expounding this relationship. Marginal R2 , expressing the variance explained by the fixed terms in the regression models, was adopted as a measure of functional accuracy, and used to rank the SDMs accordingly. In this respect, the Bayesian additive regression trees (BART) algorithm (Carlson, 2020) gave the best result, despite the low AUC and TSS. By restricting our analysis to the BART algorithm only, a variety of sets of environmental variables commonly or less used in the construction of SDMs were explored and tested according to their functional accuracy. In this respect, the SDM produced using the ENVIREM data set (Title, Bemmels, 2018) gave the best result. Key words: Vestia turgida, terrestrial gastropods, ecological niche modelling, species distribution modelling, model accuracy, model evaluation, model selection, Bayesian additive regression trees, ENVIREM data set. Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine 2021-01-04 Article Article application/pdf https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/67 10.15407/zoo2021.01.025 Zoodiversity; Vol. 55 No. 1 (2021): Zoodiversity Zoodiversity (Vestnik Zoologii); Том 55 № 1 (2021): Zoodiversity 2707-7268 2707-725X 10.15407/zoo2021.01 en https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/67/67 Copyright (c) 2021 Volodymyr Tytar, Oleksandr Baidashnikov |
| institution |
Zoodiversity |
| collection |
OJS |
| language |
English |
| topic |
Vestia turgida terrestrial gastropods ecological niche modelling species distribution modelling model accuracy model evaluation model selection Bayesian additive regression trees ENVIREM data set |
| spellingShingle |
Vestia turgida terrestrial gastropods ecological niche modelling species distribution modelling model accuracy model evaluation model selection Bayesian additive regression trees ENVIREM data set Tytar, V. M. Baidashnikov, O. Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance |
| topic_facet |
Vestia turgida terrestrial gastropods ecological niche modelling species distribution modelling model accuracy model evaluation model selection Bayesian additive regression trees ENVIREM data set |
| format |
Article |
| author |
Tytar, V. M. Baidashnikov, O. |
| author_facet |
Tytar, V. M. Baidashnikov, O. |
| author_sort |
Tytar, V. M. |
| title |
Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance |
| title_short |
Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance |
| title_full |
Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance |
| title_fullStr |
Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance |
| title_full_unstemmed |
Associations between habitat quality and body size in the Carpathian land snail Vestia turgida: species distribution model selection and assessment of performance |
| title_sort |
associations between habitat quality and body size in the carpathian land snail vestia turgida: species distribution model selection and assessment of performance |
| description |
Species distribution models (SDMs) are generally thought to be good indicators of habitat suitability, and thus of species’ performance, consequently SDMs can be validated by checking whether the areas projected to have the greatest habitat quality are occupied by individuals or populations with higher than average fitness. We hypothesized a positive and statistically significant relationship between observed in the field body size of the snail V. turgida and modelled habitat suitability, tested this relationship with linear mixed models, and found that indeed, larger individuals tend to occupy high-quality areas, as predicted by the SDMs. However, by testing several SDM algorithms, we found varied levels of performance in terms of expounding this relationship. Marginal R2 , expressing the variance explained by the fixed terms in the regression models, was adopted as a measure of functional accuracy, and used to rank the SDMs accordingly. In this respect, the Bayesian additive regression trees (BART) algorithm (Carlson, 2020) gave the best result, despite the low AUC and TSS. By restricting our analysis to the BART algorithm only, a variety of sets of environmental variables commonly or less used in the construction of SDMs were explored and tested according to their functional accuracy. In this respect, the SDM produced using the ENVIREM data set (Title, Bemmels, 2018) gave the best result.
Key words: Vestia turgida, terrestrial gastropods, ecological niche modelling, species distribution modelling, model accuracy, model evaluation, model selection, Bayesian additive regression trees, ENVIREM data set. |
| publisher |
Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine |
| publishDate |
2021 |
| url |
https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/67 |
| work_keys_str_mv |
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2024-09-01T18:01:30Z |
| last_indexed |
2024-09-01T18:01:30Z |
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