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Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
Published on: March 13, 2014
Global change and species interactions in terrestrial ecosystems
Jason M Tylianakis1, Raphael K Didham, Jordi Bascompte
1School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand. jason.tylianakis@canterbury.ac.nz
Ecology Letters
|December 9, 2008
Summary
Global environmental change drivers impact species interactions, altering competition, food webs, and mutualisms. Predicting ecosystem responses is challenging due to complex interactions and context-dependent effects.
Area of Science:
- Ecology
- Environmental Science
- Conservation Biology
Background:
- Global environmental change (GEC) drivers like CO2 enrichment, nitrogen deposition, climate change, biotic invasions, and land use are altering ecosystems worldwide.
- These drivers are known to cause extinctions and shift species distributions, with emerging evidence of impacts on species interactions.
Purpose of the Study:
- To synthesize existing research on the impacts of GEC drivers on biotic interactions.
- To identify common patterns and variability in how GEC drivers affect different types of ecological interactions.
Main Methods:
- A comprehensive literature review synthesizing data from 688 published studies.
- Analysis of effects across various interaction types, including competition, multitrophic interactions, pathogen infection, mutualisms, herbivory, and predation.
Main Results:
- GEC drivers significantly alter competitive interactions, multitrophic dynamics, pathogen prevalence, plant-related mutualisms, and herbivory.
- Effects on predation are variable, and substantial variability exists in the magnitude and direction of impacts across studies.
- Interactions among multiple GEC drivers create complex, often unpredictable, ecosystem-level effects.
Conclusions:
- Predicting future ecosystem responses to GEC is challenging due to the complex interplay of drivers and context-dependent effects.
- Understanding how biotic and abiotic contexts modify GEC impacts on interactions is crucial for accurate ecological predictions.
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