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Functional diversity positively affects prey suppression by invertebrate predators: a meta-analysis
Arran Greenop1,2, Ben A Woodcock1, Andy Wilby2
1NERC Centre for Ecology & Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, UK.
Ecology
|May 5, 2018
Summary
Maximizing pest control in agriculture relies on functional diversity (FD) of predators, not just species richness. Increasing FD enhances ecosystem services beyond the capabilities of single predator species.
Area of Science:
- Ecology
- Agricultural Science
- Conservation Biology
Background:
- Pesticide use in agriculture raises environmental concerns.
- Predators offer a potential alternative for pest control.
- Understanding how to optimize predator diversity for pest suppression is crucial.
Purpose of the Study:
- To determine which components of predator diversity impact pest control.
- To analyze the relationship between predator diversity and herbivore prey suppression.
- To identify traits that enhance the effectiveness of natural pest control.
Main Methods:
- Conducted a meta-analysis of 51 studies on predator species richness manipulation.
- Assessed functional diversity (FD) based on habitat, diet, and hunting strategy.
- Compared prey suppression in polycultures versus monocultures.
Main Results:
- Functional diversity (FD) was the most significant variable for pest control.
- Increased FD in polycultures led to greater prey suppression than monocultures.
- Niche differentiation and resource exploitation in diverse communities drive these effects.
Conclusions:
- Enhancing functional diversity in predatory invertebrates maximizes pest control.
- This approach can improve ecosystem services beyond single-species effectiveness.
- Focusing on functional traits is key for optimizing biological pest management.
Keywords:
agricultural ecosystemsbiodiversity and ecosystem functioningconservation biological controlecosystem servicesfunctional diversitynatural enemiesphylogenetic diversitypredator-prey interactionsspecies richnesstraitsMore Related Videos
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