Artículo
Burn severity and land-use legacy influence bird abundance in the Atlantic-Mediterranean biogeographic transition
Autor/es | García Redondo, Concepción
Fernández Moure, Paula Cánibe Iglesias, Miguel Tapia, Luis de Gil Carrera, Alberto Lombao, Alba Díaz Ravina, Montserrat Regos, Adrián |
Departamento | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología |
Fecha de publicación | 2023 |
Fecha de depósito | 2023-11-09 |
Publicado en |
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Resumen | Fire regimes in mountain landscapes of southern Europe have been shifting from their baselines due to rural abandonment and fire exclusion policies. Understanding the effects of fire on biodiversity is paramount to implement ... Fire regimes in mountain landscapes of southern Europe have been shifting from their baselines due to rural abandonment and fire exclusion policies. Understanding the effects of fire on biodiversity is paramount to implement adequate management. Herein, we evaluated the relative role of burn severity and heterogeneity on bird abundance in an abandoned mountain range located in the biogeographic transition between the Eurosiberian and Mediterranean region (the Natural Park ‘Baixa Limia–Serra do Xurés’). We surveyed the bird community in 206 census plots distributed across the Natural Park, both inside and outside areas affected by wildfires over the last 11 years (from 2010 to 2020). We used satellite images of Sentinel 2 and Landsat missions to quantify the burn severity and heterogeneity of each fire within each surveyed plot. We also accounted for the past land use (forestry or agropastoral use) by using a land cover information for year 2010 derived from satellite image classification. We recorded 1735 contacts from 28 bird species. Our models, fitted by using GLMs with Poisson error distribution (pseudo-R2-average of 0.22 ± 0.13), showed that up to 71% of the modeled species were linearly correlated with at least one attribute of the fire regime. The spatiotemporal variation in burnt area and severity were relevant factors for explaining the local abundance of our target species (39% of the species; Akaike weights >0.75). We also found a quadratic effect of at least one fire regime attribute on bird abundance for 60% of the modeled species. The past land use, and its legacy after 10 years, was critical to understand the role of fire (Akaike weights >0.75). Our findings confirm the importance of incorporating remotely sensed indicators of burn severity into the toolkit of decision makers to accurately anticipate the response of birds to fire management. |
Agencias financiadoras | Xunta de Galicia Portuguese Foundation for Science and Technology (FCT) |
Identificador del proyecto | 2021-CP083
![]() PCIF/MOG/0083/2017 ![]() PCIF/RPG/0170/2019 ![]() |
Cita | García Redondo, C., Fernández Moure, P., Cánibe Iglesias, M., Tapia, L.d., Gil Carrera, A., Lombao, A.,...,Regos, A. (2023). Burn severity and land-use legacy influence bird abundance in the Atlantic-Mediterranean biogeographic transition. Environmental Research, 233, 116510. https://doi.org/10.1016/j.envres.2023.116510. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Burn severity.pdf | 2.272Mb | ![]() | Ver/ | |