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Updated: Feb 18, 2026

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

Spatial memory shapes density dependence in population dynamics.

Louise Riotte-Lambert^1,2, Simon Benhamou³, Christophe Bonenfant⁴

¹Centre d'Ecologie Fonctionnelle et Evolutive, CNRS, Université de Montpellier, 1919 Route de Mende, 34293 Montpellier Cedex 5, France louise.riotte.lambert@gmail.com.

Proceedings. Biological Sciences

|November 24, 2017

Summary

This summary is machine-generated.

Spatial memory in foraging animals significantly impacts population dynamics. Memory-based movement increases population size and resource depletion, highlighting the role of cognitive abilities in ecological processes.

Keywords:

foraging memory movement population dynamics space use

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Area of Science:

Ecology
Behavioral Ecology
Population Dynamics

Background:

Traditional population models assume uniform spatial use and random mixing.
Many species exhibit non-random movement patterns, utilizing spatial memory for resource patch exploitation.

Purpose of the Study:

To investigate how memory-based foraging movement influences density-dependent population dynamics.
To quantify the effects of spatial memory on competition intensity and population equilibrium.

Main Methods:

Developed a spatially explicit, individual-based movement model.
Modeled reproduction and death as functions of foraging efficiency.
Compared population dynamics between memory-based and non-memory-based movement strategies.

Main Results:

Memory-based movement resulted in higher equilibrium population sizes.
Populations with memory showed greater environmental resource depletion.
A significant discrepancy was observed between global and local competition intensities.
Nonlinear density dependence was evident in memory-based populations.

Conclusions:

Individual movement strategies and cognitive abilities, such as spatial memory, critically affect population dynamics.
Standard assumptions of uniform spatial use may underestimate the complexity of ecological interactions.
Further research is needed to explore the broader implications of cognitive ecology on population persistence.