Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ?
Alpine ecosystems will be greatly impacted by climatic change, but other factors, such as land use and invasive species, are likely to play an important role too. Climate can influence ecosystems at several levels. We describe some of them, stressing methodological approaches and available data. Cli...
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| Format: | Article |
| Language: | English |
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Institut de Géographie Alpine
2011-01-01
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| Series: | Revue de Géographie Alpine |
| Subjects: | |
| Online Access: | https://journals.openedition.org/rga/1279 |
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| _version_ | 1841546692798709760 |
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| author | Nigel G. Yoccoz Anne Delestrade Anne Loison |
| author_facet | Nigel G. Yoccoz Anne Delestrade Anne Loison |
| author_sort | Nigel G. Yoccoz |
| collection | DOAJ |
| description | Alpine ecosystems will be greatly impacted by climatic change, but other factors, such as land use and invasive species, are likely to play an important role too. Climate can influence ecosystems at several levels. We describe some of them, stressing methodological approaches and available data. Climate can modify species phenology, such as flowering date of plants and hatching date in insects. It can also change directly population demography (survival, reproduction, dispersal), and therefore species distribution. Finally it can effect interactions among species –snow cover for example can affect the success of some predators. One characteristic of alpine ecosystems is the presence of snow cover, but surprisingly the role played by snow is relatively poorly known, mainly for logistical reasons. Even if we have made important progress regarding the development of predictive models, particularly so for distribution of alpine plants, we still need to set up observational and experimental networks which properly take into account the variability of alpine ecosystems and of their interactions with climate. |
| format | Article |
| id | doaj-art-e8283426cebf4b62bd338967b9b08df1 |
| institution | Kabale University |
| issn | 0035-1121 1760-7426 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Institut de Géographie Alpine |
| record_format | Article |
| series | Revue de Géographie Alpine |
| spelling | doaj-art-e8283426cebf4b62bd338967b9b08df12025-01-10T15:55:57ZengInstitut de Géographie AlpineRevue de Géographie Alpine0035-11211760-74262011-01-0198410.4000/rga.1279Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ?Nigel G. YoccozAnne DelestradeAnne LoisonAlpine ecosystems will be greatly impacted by climatic change, but other factors, such as land use and invasive species, are likely to play an important role too. Climate can influence ecosystems at several levels. We describe some of them, stressing methodological approaches and available data. Climate can modify species phenology, such as flowering date of plants and hatching date in insects. It can also change directly population demography (survival, reproduction, dispersal), and therefore species distribution. Finally it can effect interactions among species –snow cover for example can affect the success of some predators. One characteristic of alpine ecosystems is the presence of snow cover, but surprisingly the role played by snow is relatively poorly known, mainly for logistical reasons. Even if we have made important progress regarding the development of predictive models, particularly so for distribution of alpine plants, we still need to set up observational and experimental networks which properly take into account the variability of alpine ecosystems and of their interactions with climate.https://journals.openedition.org/rga/1279ecosystembiodiversityphenologymodellingpopulation |
| spellingShingle | Nigel G. Yoccoz Anne Delestrade Anne Loison Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ? Revue de Géographie Alpine ecosystem biodiversity phenology modelling population |
| title | Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ? |
| title_full | Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ? |
| title_fullStr | Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ? |
| title_full_unstemmed | Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ? |
| title_short | Impact des changements climatiques sur les écosystèmes alpins : comment les mettre en évidence et les prévoir ? |
| title_sort | impact des changements climatiques sur les ecosystemes alpins comment les mettre en evidence et les prevoir |
| topic | ecosystem biodiversity phenology modelling population |
| url | https://journals.openedition.org/rga/1279 |
| work_keys_str_mv | AT nigelgyoccoz impactdeschangementsclimatiquessurlesecosystemesalpinscommentlesmettreenevidenceetlesprevoir AT annedelestrade impactdeschangementsclimatiquessurlesecosystemesalpinscommentlesmettreenevidenceetlesprevoir AT anneloison impactdeschangementsclimatiquessurlesecosystemesalpinscommentlesmettreenevidenceetlesprevoir |