Rocky habitats as microclimatic refuges for biodiversity. A close-up thermal approach
García, María B. ; Domingo, Darío (Universidad de Zaragoza) ; Pizarro, Manuel ; Font, Xavier ; Gómez, Daniel ; Ehrlén, Johan
Resumen: In the present scenario of climatic change, climatic refugia will be of paramount importance for species per- sistence. Topography can generate a considerable climatic heterogeneity over short distances, which is often disregarded in macroclimatic predictive models. Here we investigate the role of rocky habitats as microclimatic refugia by combining two different analyses: exploring a thermal mechanism whereby rocky habitats might serve as refugia, and examining if the biogeographic pattern shows a high abundance of relict, endemic and peripheral species.
The thermal profile of two populations of relict and endemic plant species occurring in Pyrenean cliffs was investigated by infrared images and in situ temperature data-loggers. Despite occurring in crevices of a south oriented slope, Androsace cylindrica showed a narrower daily range of temperature than the surrounding matrix, thereby avoiding extreme high temperatures. Borderea chouardii, of tropical ancestors, also occurred in patches where temperatures were buffered during the growth season, experiencing lower mean temperatures than the surrounding matrix and nearby areas during the warmer part of the day, and similar temperatures during the colder. The rocky habitats of both species, therefore, reduced temperature ranges and exposition to extreme climatic events. Compared to other habitats, the rocky ones also harboured a very high fraction of both endemics and peripheral plant populations according to the largest vegetation dataset available in the Pyrenees (18,800 plant inventories and 400,000 records). Our results suggest an association between the habitats of relicts, en- demics and species at their distribution limit, driven by a stabilizing effect of rocky habitats on extreme tem- peratures. Given the important role of rocky habitats as hotspots of singular and unique plants, their char- acterization seems a sensible first step to identify potential refugia in the context of climate change.
Idioma: Inglés
DOI: 10.1016/j.envexpbot.2019.103886
Año: 2019
Publicado en: ENVIRONMENTAL AND EXPERIMENTAL BOTANY 170 (2019), 103886 [10 pp.]
ISSN: 0098-8472
Factor impacto JCR: 4.027 (2019)
Categ. JCR: PLANT SCIENCES rank: 26 / 234 = 0.111 (2019) - Q1 - T1
Categ. JCR: ENVIRONMENTAL SCIENCES rank: 71 / 265 = 0.268 (2019) - Q2 - T1
Factor impacto SCIMAGO: 1.213 - Agronomy and Crop Science (Q1) - Plant Science (Q1) - Ecology, Evolution, Behavior and Systematics (Q1)
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2010-21642
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2017-90040-R
Tipo y forma: Artículo (PostPrint)
Área (Departamento): Área Análisis Geográfico Regi. (Dpto. Geograf. Ordenac.Territ.)
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The thermal profile of two populations of relict and endemic plant species occurring in Pyrenean cliffs was investigated by infrared images and in situ temperature data-loggers. Despite occurring in crevices of a south oriented slope, Androsace cylindrica showed a narrower daily range of temperature than the surrounding matrix, thereby avoiding extreme high temperatures. Borderea chouardii, of tropical ancestors, also occurred in patches where temperatures were buffered during the growth season, experiencing lower mean temperatures than the surrounding matrix and nearby areas during the warmer part of the day, and similar temperatures during the colder. The rocky habitats of both species, therefore, reduced temperature ranges and exposition to extreme climatic events. Compared to other habitats, the rocky ones also harboured a very high fraction of both endemics and peripheral plant populations according to the largest vegetation dataset available in the Pyrenees (18,800 plant inventories and 400,000 records). Our results suggest an association between the habitats of relicts, en- demics and species at their distribution limit, driven by a stabilizing effect of rocky habitats on extreme tem- peratures. Given the important role of rocky habitats as hotspots of singular and unique plants, their char- acterization seems a sensible first step to identify potential refugia in the context of climate change.
Idioma: Inglés
DOI: 10.1016/j.envexpbot.2019.103886
Año: 2019
Publicado en: ENVIRONMENTAL AND EXPERIMENTAL BOTANY 170 (2019), 103886 [10 pp.]
ISSN: 0098-8472
Factor impacto JCR: 4.027 (2019)
Categ. JCR: PLANT SCIENCES rank: 26 / 234 = 0.111 (2019) - Q1 - T1
Categ. JCR: ENVIRONMENTAL SCIENCES rank: 71 / 265 = 0.268 (2019) - Q2 - T1
Factor impacto SCIMAGO: 1.213 - Agronomy and Crop Science (Q1) - Plant Science (Q1) - Ecology, Evolution, Behavior and Systematics (Q1)
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2010-21642
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2017-90040-R
Tipo y forma: Artículo (PostPrint)
Área (Departamento): Área Análisis Geográfico Regi. (Dpto. Geograf. Ordenac.Territ.)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.Exportado de SIDERAL (2020-09-30-10:01:31)
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Artículos > Artículos por área > Análisis Geográfico Regional
Registro creado el 2020-09-30, última modificación el 2020-09-30