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Summary
This summary is machine-generated.

Environmental changes impact ecosystems through complex physiological responses. Mismatched species-specific reactions to drivers like warming and ocean acidification can cause significant ecosystem shifts, even without direct mortality.

Keywords:
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Area of Science:

  • Ecology
  • Environmental Science
  • Physiology

Background:

  • Connecting organismal physiology to ecosystem impacts from environmental drivers is challenging.
  • Current models often overlook species-specific, nonlinear physiological responses to environmental changes.
  • A disconnect exists between organismal (physiological) and ecological (community) contexts of environmental stressors.

Purpose of the Study:

  • To develop a framework aligning physiological effects of environmental drivers with ecological responses.
  • To explore how varied environment-performance relationships influence community-level trophic interactions.
  • To investigate ecosystem changes resulting from mismatched species responses to environmental shifts.

Main Methods:

  • Utilized simple models based on direct physiological responses to temperature and ocean pCO2.
  • Examined how variations in environment-performance relationships translate to community effects.
  • Focused on indirect ecological responses mediated by trophic interactions.

Main Results:

  • Even subtle environmental changes can induce substantial ecosystem-level alterations.
  • Mismatched physiological responses among species can lead to significant community restructuring.
  • Direct mortality is not required to drive major ecosystem changes.

Conclusions:

  • Incorporating nonlinear, species-specific physiological responses is crucial for predicting ecological tipping points.
  • Understanding varied environment-performance relationships is key to predicting ecosystem responses to climate change.
  • Ecosystem dynamics are sensitive to the indirect effects of environmental drivers on species interactions.