ArticleOecologia2018
Tree growth and water-use in hyper-arid Acacia occurs during the hottest and driest season.
Article in Oecologia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- Differential gene reactions reveal drought response strategies in African acacias.The Plant journal : for cell and molecular biology · 2025Article
- From current to future projections: modeling habitat suitability changes forFrontiers in plant science · 2025Article
- Article
- Responses of twoFrontiers in plant science · 2023Article
- Determining the appropriate level of farmyard manure biochar application in saline soils for three selected farm tree species.PloS one · 2022Article
- Invertebrate and vertebrate predation rates in a hyperarid ecosystem following an oil spill.Ecology and evolution · 2021Article
- Temporal and Spatial Changes in Phyllosphere Microbiome of Acacia Trees Growing in Arid Environments.Frontiers in microbiology · 2021Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Drought-induced tree mortality has been recently increasing and is expected to increase further under warming climate. Conversely, tree species that survive under arid conditions might provide vital information on successful drought resistance strategies. Although Acacia (Vachellia) species dominate many of the globe's deserts, little is known about their growth dynamics and water-use in situ. Stem diameter dynamics, leaf phenology, and sap flow were monitored during 3 consecutive years in five Acacia raddiana trees and five Acacia tortilis trees in the Arid Arava Valley, southern Israel (annual precipitation 20-70 mm, restricted to October-May). We hypothesized that stem growth and other tree activities are synchronized with, and limited to single rainfall or flashflood events. Unexpectedly, cambial growth of both Acacia species was arrested during the wet season, and occurred during most of the dry season, coinciding with maximum daily temperatures as high as 45 °C and vapor pressure deficit of up to 9 kPa. Summer growth was correlated with peak sap flow in June, with almost year-round activity and foliage cover. To the best of our knowledge, these are the harshest drought conditions ever documented permitting cambial growth. These findings point to the possibility that summer cambial growth in Acacia under hyper-arid conditions relies on concurrent leaf gas exchange, which is in turn permitted by access to deep soil water. Soil water can support low-density tree populations despite heat and drought, as long as recharge is kept above a minimum threshold.
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Registered trials
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