NDLI: Recurrent Mild Drought Events Increase Resistance Toward Extreme Drought Stress

Content Provider	Springer Nature Link
Author	Backhaus, Sabrina Kreyling, Juergen Grant, Kerstin Beierkuhnlein, Carl Walter, Julia Jentsch, Anke
Copyright Year	2014
Abstract	The frequency and magnitude of extreme weather events such as drought are expected to increase in the future. At present, plant responses to recurrent extreme events have been sparsely examined and the role of stress history on subsequent stress response has been widely neglected. In a long-term field experiment, we investigated the response of grassland and heath communities to a very severe drought event, which exceeded the duration of projected drought scenarios. During the preceding 6 years, the plant communities experienced scenarios of varying water supply, including annually recurring drought, heavy rain, regular watering, and natural drought periods. Single species and plant communities that were regularly watered in the preceding years revealed the highest tissue die-back under a very severe drought when compared to plants that experienced mild or severe drought stress before. Contrary to expectations, the root to shoot ratio did not increase due to previous recurrent drought occurrences. Furthermore, pre-exposure effects on Vaccinium myrtillus and Plantago lanceolata tissue die-back and reproductive biomass (P. lanceolata) were altered by community composition. Recurrent mild drought stress seems to improve drought resistance of plant communities and species. Potential reasons could be epigenetic changes or soil biotic legacies. Morphological legacies such as altered root to shoot ratio did not play a role in our study. Imprinting events which trigger this ecological stress memory do not have to be extreme themselves. Thresholds, longevity of effects, and the role of biodiversity shown by the importance of community composition require further attention.
Starting Page	1068
Ending Page	1081
Page Count	14
File Format	PDF
ISSN	14329840
Journal	Ecosystems
Volume Number	17
Issue Number	6
e-ISSN	14350629
Language	English
Publisher	Springer US
Publisher Date	2014-06-24
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	drought memory EVENT-experiment legacy precipitation change pulse pressure resilience resistance Ecology Plant Sciences Zoology Environmental Management Geoecology/Natural Processes Hydrology/Water Resources
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry Ecology, Evolution, Behavior and Systematics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Drought Effects in Climate Change Manipulation Experiments: Quantifying the Influence of Ambient Weather Conditions and Rain-out Shelter Artifacts

From Metaphor to Measurement: Resilience of What to What?

Legacy Effects of Human Land Use: Ecosystems as Time-Lagged Systems

Precipitation-Induced Alternative Regime Switches in Shallow Lakes of the Boreal Plains (Alberta, Canada)

Reviewer thank you

Reviewer thank you

Ecohydrology of Dry Regions: Storage versus Pulse Soil Water Dynamics

Panarchy: Theory and Application

Whole-Lake CO2 Dynamics in Response to Storm Events in Two Morphologically Different Lakes

Recurrent Mild Drought Events Increase Resistance Toward Extreme Drought Stress

Similar Documents

Drought Effects in Climate Change Manipulation Experiments: Quantifying the Influence of Ambient Weather Conditions and Rain-out Shelter Artifacts

From Metaphor to Measurement: Resilience of What to What?

Legacy Effects of Human Land Use: Ecosystems as Time-Lagged Systems

Precipitation-Induced Alternative Regime Switches in Shallow Lakes of the Boreal Plains (Alberta, Canada)

Reviewer thank you

Reviewer thank you

Ecohydrology of Dry Regions: Storage versus Pulse Soil Water Dynamics

Panarchy: Theory and Application

Whole-Lake CO2 Dynamics in Response to Storm Events in Two Morphologically Different Lakes

Recurrent Mild Drought Events Increase Resistance Toward Extreme Drought Stress