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Updated: Nov 15, 2025

Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa

Evaluating Dryocosmus Kuriphilus-induced Damage on Castanea Sativa

Published on: August 30, 2018

Why is Tree Drought Mortality so Hard to Predict?

Anna T Trugman¹, Leander D L Anderegg², William R L Anderegg³

¹Department of Geography, University of California Santa Barbara, Santa Barbara, CA 93106, USA.

Trends in Ecology & Evolution

|March 6, 2021

Summary

This summary is machine-generated.

Droughts cause widespread tree death, an ecological surprise. Predicting forest die-offs requires understanding both tree physiology and ecological interactions, not just stress responses.

Keywords:

biotic agent ecology climate change drought ecosystem modeling trait covariation tree mortality

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Last Updated: Nov 15, 2025

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Area of Science:

Forest ecology
Plant physiology
Climate change impacts

Background:

Ecological surprise of widespread tree mortality due to drought.
Limitations in predicting drought-driven tree death using solely physiological factors.
Need to incorporate complex ecological interactions into mortality predictions.

Purpose of the Study:

To identify factors limiting accurate predictions of drought-driven tree mortality.
To highlight the role of organismal and community-level factors.
To propose an integrated approach for assessing forest drought risk.

Main Methods:

Review of existing research on tree physiology and drought.
Analysis of organismal-level factors influencing drought exposure and vulnerability.
Examination of community-level interactions, including biotic agents.

Main Results:

Physiological factors alone are insufficient for accurate mortality prediction.
Organismal and site-specific factors complicate drought impact assessment.
Biotic agents can alter expected mortality patterns based on stress physiology.

Conclusions:

Accurate prediction of drought-driven tree mortality requires integrating stress physiology with biotic agent dynamics.
A changing climate necessitates a holistic approach to forest risk assessment.
Understanding ecological interactions is crucial for mitigating widespread tree die-offs.