Feedback loops: How nature gets its rhythms - Anje-Margriet Neutel

Feedback is defined as mutual causal interaction where components of a system affect one another. These feedback loops are fundamental to nature, governing how populations respond to environmental events.

Positive feedback amplifies a specific effect or change within an ecosystem, such as decomposing plants enriching soil to foster further growth. While vital for building ecosystems, these loops can be harmful if they trigger cycles like soil erosion.

Negative feedback serves to diminish or counteract changes, maintaining long-term equilibrium. A classic example is the predator-prey relationship, where population fluctuations prevent either species from dominating and ensure the persistence of the food chain.

Natural communities are not just simple food chains but complex webs of interactions. Different ecosystems generate unique patterns of feedback, likened to musical harmonies that define the specific 'sound' or functioning style of habitats like oceans, deserts, or rainforests.

Ecosystems are dynamic and change over time. While human impact like deforestation can degrade an ecosystem's 'harmony,' natural processes can also allow abandoned lands to flourish and develop into complex, thriving biological orchestras.