The changing biosphere: recent insights from paleoenvironmental science into drivers, mechanisms and impacts

作者: SARAH A. FINKELSTEIN

DOI: 10.1111/J.1541-0064.2009.00278.X

关键词:

摘要: Paleoenvironmental science has experienced a recent surge in interest and activity as concerns grow over global environmental change. Key research questions the biotic realm of paleoenvironmental focus on explaining climatic change at time scales decades to centuries understanding ecosystem responses these changes. Biotic are increasingly being studied smaller spatial identify local factors that determine sensitivity particular system These findings can then be applied solving variety problems, such setting conservation targets or testing mechanisms for observed biogeographic phenomena. Research approaches commonly used today include hypothesis testing, which now become more sophisticated paleoecologists paleoclimatologists integrate with modellers. Other frameworks involve quantitative integration multiple proxy indicators use extensive publicly available data networks produce new datasets paleoclimatic reconstructions other applications. La biosphere en evolution : les connaissances scientifiques recentes issues des etudes paleo-environnementales portant sur moteurs du changement, mecanismes et incidences Depuis que changements climatiques l'echelle de la planete se trouvent au centre preoccupations, l'interet pour sciences connait une forte augmentation initiatives multiplient. Les principales recherche relatives domaine biotique abordees par visent donner elements d'explication echelles temps qui s'etendent decennies siecles, comprendre possibles reactions ecosystemes face ces changements. De plus d'etudes biotiques sont realisees spatiales reduites vue d'identifier facteurs locaux determinent le niveau susceptibilite d'un systeme specifique aux climatiques. resultats obtenus peuvent servir regler serie problemes dont celui fixer objectifs atteindre, ou verifier associes phenomenes biogeographiques. Presentement, plupart demarches reposent verification experimentale d'une hypothese s'est beaucoup perfectionnee depuis paleoecologistes paleoclimatogistes s'associent modelisateurs. d'autres axes envisagent l'integration divers indicateurs indirects ainsi l'utilisation multiples reseaux publics donnees permettant constituer bases fins paleoclimatiques qu'a types d'usage.

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