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Impact of climate change and biodiversity loss on trophic interactions in coastal ecosystems

Abstract

Climate change and biodiversity loss can influence community structure via changes in trophic interactions. The effects of such stressors are variable, leading even to species extinction. However, there is a knowledge gap on the combined effects of those stressors in the community structure and ecosystemic processes. In this present proposal, by an experimental approach, we will evaluate the effects of such stressors employing two types of trophic interactions as models: predation (fish and crabs) and herbivory (amphipods and algae). The guiding questions are: 1) How do temperature rising and ocean acidification affect consumer-prey interactions? We expect that climate change will affect the interacting organisms, with costs to both predator (behavior and physiology) and prey (behavior). 2) How does the diversity loss of consumers affect the intensity of consumer-prey interactions? We aim to show the effects of herbivore species richness on primary and secondary productivities. 3) How do temperature rise and diversity loss affect, simultaneously, ecosystem processes? The concurrent effects of those stressors will be assessed using the herbivore-algae interaction as model. The present study will help to predict how climate change and diversity loss can affect species interactions and, hence, the ecosystem functioning. (AU)

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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)