The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.

Although climate is known to be one of the key factors determining animal species distributions amongst others, projections of global change impacts on their distributions often rely on bioclimatic envelope models. Vegetation structure and landscape configuration are also key determinants of distrib...

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Autores principales:	Maria Triviño, Wilfried Thuiller, Mar Cabeza, Thomas Hickler, Miguel B Araújo
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b61f5a2b581a4d18b6d0c54b27a00549
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spelling	oai:doaj.org-article:b61f5a2b581a4d18b6d0c54b27a005492021-11-18T07:31:35ZThe contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.1932-620310.1371/journal.pone.0029373https://doaj.org/article/b61f5a2b581a4d18b6d0c54b27a005492011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22216263/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Although climate is known to be one of the key factors determining animal species distributions amongst others, projections of global change impacts on their distributions often rely on bioclimatic envelope models. Vegetation structure and landscape configuration are also key determinants of distributions, but they are rarely considered in such assessments. We explore the consequences of using simulated vegetation structure and composition as well as its associated landscape configuration in models projecting global change effects on Iberian bird species distributions. Both present-day and future distributions were modelled for 168 bird species using two ensemble forecasting methods: Random Forests (RF) and Boosted Regression Trees (BRT). For each species, several models were created, differing in the predictor variables used (climate, vegetation, and landscape configuration). Discrimination ability of each model in the present-day was then tested with four commonly used evaluation methods (AUC, TSS, specificity and sensitivity). The different sets of predictor variables yielded similar spatial patterns for well-modelled species, but the future projections diverged for poorly-modelled species. Models using all predictor variables were not significantly better than models fitted with climate variables alone for ca. 50% of the cases. Moreover, models fitted with climate data were always better than models fitted with landscape configuration variables, and vegetation variables were found to correlate with bird species distributions in 26-40% of the cases with BRT, and in 1-18% of the cases with RF. We conclude that improvements from including vegetation and its landscape configuration variables in comparison with climate only variables might not always be as great as expected for future projections of Iberian bird species.Maria TriviñoWilfried ThuillerMar CabezaThomas HicklerMiguel B AraújoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 12, p e29373 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maria Triviño Wilfried Thuiller Mar Cabeza Thomas Hickler Miguel B Araújo The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.
description	Although climate is known to be one of the key factors determining animal species distributions amongst others, projections of global change impacts on their distributions often rely on bioclimatic envelope models. Vegetation structure and landscape configuration are also key determinants of distributions, but they are rarely considered in such assessments. We explore the consequences of using simulated vegetation structure and composition as well as its associated landscape configuration in models projecting global change effects on Iberian bird species distributions. Both present-day and future distributions were modelled for 168 bird species using two ensemble forecasting methods: Random Forests (RF) and Boosted Regression Trees (BRT). For each species, several models were created, differing in the predictor variables used (climate, vegetation, and landscape configuration). Discrimination ability of each model in the present-day was then tested with four commonly used evaluation methods (AUC, TSS, specificity and sensitivity). The different sets of predictor variables yielded similar spatial patterns for well-modelled species, but the future projections diverged for poorly-modelled species. Models using all predictor variables were not significantly better than models fitted with climate variables alone for ca. 50% of the cases. Moreover, models fitted with climate data were always better than models fitted with landscape configuration variables, and vegetation variables were found to correlate with bird species distributions in 26-40% of the cases with BRT, and in 1-18% of the cases with RF. We conclude that improvements from including vegetation and its landscape configuration variables in comparison with climate only variables might not always be as great as expected for future projections of Iberian bird species.
format	article
author	Maria Triviño Wilfried Thuiller Mar Cabeza Thomas Hickler Miguel B Araújo
author_facet	Maria Triviño Wilfried Thuiller Mar Cabeza Thomas Hickler Miguel B Araújo
author_sort	Maria Triviño
title	The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.
title_short	The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.
title_full	The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.
title_fullStr	The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.
title_full_unstemmed	The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.
title_sort	contribution of vegetation and landscape configuration for predicting environmental change impacts on iberian birds.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/b61f5a2b581a4d18b6d0c54b27a00549
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The contribution of vegetation and landscape configuration for predicting environmental change impacts on Iberian birds.

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