Extensive drought-associated plant mortality as an agent of type-conversion in chaparral shrublands

Bibliographische Detailangaben
Veröffentlicht in:	The New phytologist. - 1979. - 219(2018), 2 vom: 04. Juli, Seite 498-504
1. Verfasser:	Jacobsen, Anna L (VerfasserIn)
Weitere Verfasser:	Pratt, R Brandon
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2018
Zugriff auf das übergeordnete Werk:	The New phytologist
Schlagworte:	Journal Article Research Support, U.S. Gov't, Non-P.H.S. Review chaparral dieback drought ecological drought mortality rooting depth type-conversion water stress

Beschreibung
Zusammenfassung:	© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust. Contents Summary 498 I. Introduction 498 II. Ecological drought and vegetation type-conversion 499 III. Chaparral mortality during extreme drought events 501 IV. Some species survive drought and others do not 501 V. Recovery potential 502 VI. Conclusions 503 Acknowledgements 503 References 503 SUMMARY: California experienced an intense drought from 2012 to 2015, with southern California remaining in drought to the present. Widespread chaparral shrub mortality was observed during the peak of the drought in 2014. Some species were more impacted than others and shallow-rooted shrub species were the most vulnerable to drought-associated mortality. This type of drought represents what is termed an 'ecological drought' during which an ecosystem is driven beyond thresholds of vulnerability, triggering impairment of ecosystem services and feedbacks that may result in long-term type-conversion of natural communities. The ability of shrublands to recover will depend on the timing, intensity and seasonality of future extreme climate events, post-fire recruitment potential of species with obligate fire-associated recruitment, and interactions with other stresses
Beschreibung:	Date Completed 20.09.2019 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.15186