Climate Change Impacts on Plant-Parasitic Nematodes in Agroecosystems

Area of Science:

• Agricultural Science
• Environmental Science
• Nematology

Background:

• Climate change, driven by rising temperatures, altered precipitation, and increased CO2, profoundly affects agricultural ecosystems.
• Plant-parasitic nematodes (PPNs) are significant pests causing global crop losses.
• Understanding climate change impacts on PPNs is crucial for sustainable agriculture.

Purpose of the Study:

• To review and evaluate current knowledge on how climate change drivers influence PPNs in agriculture.
• To synthesize findings on PPN biology, population dynamics, host interactions, and distribution shifts.
• To identify research gaps and inform future management strategies.

Main Methods:

• Comprehensive literature review of recent studies on climate change and PPNs.
• Analysis of impacts from temperature, precipitation, CO2, and extreme weather events.
• Synthesis of findings on PPN responses, including development, distribution, and host interactions.

Main Results:

• Rising temperatures accelerate PPN development and facilitate geographic spread to new latitudes and elevations.
• Altered precipitation and soil moisture impact PPN survival, mobility, and infection success.
• Elevated CO2 modifies plant-nematode interactions, potentially increasing host susceptibility.
• Extreme weather events disrupt soil ecosystems and natural nematode antagonists.
• PPN responses to climate change are species-specific and influenced by environmental variability.

Conclusions:

• Climate change is expected to increase PPN prevalence and alter their geographic distribution.
• Species-specific traits and environmental variability shape PPN responses to climate drivers.
• Long-term, multi-factorial field studies are needed to understand combined climate effects.
• Development of climate-sensitive and regionally adapted nematode management strategies is essential.