migreres

Migreres is a conceptual term used in migration studies to describe a class of migratory pathways and the systems that support them. In theoretical use, migreres refer to recurring, multi-leg routes that populations follow across landscapes or regions, often shaped by climatic cycles, resource distribution, and human influence.

A migreres system comprises corridors, which are the preferred routes; nodes, which are stopovers or habitats where populations rest, feed, or reproduce; and drivers, which include environmental conditions, economic factors, and policy regimes that influence movement decisions.

Researchers study migreres with network-based and agent-based models. In these approaches, routes are edges and locations are nodes, allowing analysis of connectivity, resilience, and threshold effects such as sudden fragmentation or rapid expansion of movement under changing conditions.

Applications include conservation planning to safeguard critical corridors, infrastructure siting to minimize disruption, and risk assessment for climate-induced shifts in distributions. Migreres concepts also inform urban planning, agriculture, and disease ecology by highlighting how movement shapes exposure and resource access.

Limitations of migreres reflect data gaps, variability in drivers across species and contexts, and ethical considerations around monitoring movements. Debates continue about how best to operationalize the concept in empirical research and policy.