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Related Experiment Video

Updated: Jul 2, 2025

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM

Published on: October 11, 2016

Using the multivariate Hawkes process to study interactions between multiple species from camera trap data.

Lisa Nicvert¹, Sophie Donnet², Mark Keith³

¹Universite Claude Bernard Lyon 1, LBBE, UMR 5558, CNRS, VAS, Villeurbanne, France.

|February 19, 2024

Summary

This summary is machine-generated.

The multivariate Hawkes process (MHP) analyzes species interactions using camera trap data, revealing predator avoidance and herbivore attraction. This method reliably infers complex ecological community dynamics.

Keywords:

African savanna Snapshot Safari camera trap interaction network interspecific interactions multivariate Hawkes process reactive response spatio‐temporal interactions

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Quantifying Corticolous Arthropods Using Sticky Traps

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Published on: January 19, 2020

Area of Science:

Ecology
Computational Biology
Wildlife Management

Background:

Interspecific interactions shape species activity and movement.
Studying these interactions, especially with multiple species, is challenging due to limited data and methods.
Camera traps offer abundant data, but require advanced statistical techniques.

Purpose of the Study:

To introduce the multivariate Hawkes process (MHP) for analyzing multi-species interactions from camera trap data.
To evaluate the MHP's performance against existing methods using simulations.
To apply the MHP to real-world camera trap data from South African savannas.

Main Methods:

Developed and described the multivariate Hawkes process (MHP) framework.
Utilized flexible pairwise interaction functions to model temporal interactions.
Conducted simulation studies and analyzed real camera trap data from five savanna species.

Main Results:

The MHP reliably infers interspecific interactions with sufficient data and can benchmark other methods.
Analysis of savanna data revealed predator avoidance by prey species.
Evidence of attraction was found between certain herbivore species.

Conclusions:

The MHP is a promising tool for analyzing complex ecological interactions using camera trap data.
It offers insights into predator-prey dynamics and herbivore social behavior.
Future improvements can enhance its reliability in detecting attraction/avoidance patterns.