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Related Experiment Video

Updated: Jun 25, 2026

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds

Published on: November 6, 2015

Testing hypotheses associated with bird responses to wildfire.

David B Lindenmayer¹, Jeff T Wood, Ross B Cunningham

¹Fenner School of Environment and Society, Australian National University, Canberra, ACT 0200, Australia. david.lindenmayer@anu.edu.au

Ecological Applications : a Publication of the Ecological Society of America

|March 7, 2009

Summary

This summary is machine-generated.

Bird species richness declined with increased fire frequency, contradicting intermediate disturbance theory. However, most bird communities recovered quickly after a single wildfire, especially in complex habitats.

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Area of Science:

Ecological disturbance
Community ecology
Avian ecology

Background:

Disturbance is a critical ecological process affecting species distribution and abundance.
Predicting biota responses to disturbance remains challenging.
Ecological theories on disturbance impacts require empirical validation.

Purpose of the Study:

To test predictions from disturbance-related theories using bird responses to fire history.
To assess bird community recovery following a wildfire event.
To investigate the influence of vegetation structure on post-fire bird recovery.

Main Methods:

Retrospective study of bird responses to 35 years of fire history across 110 sites.
Prospective study of bird community dynamics after a 2003 wildfire at 59 sites.
Analysis of bird species richness and assemblage composition in relation to fire frequency and vegetation structure.

Main Results:

Bird species richness was negatively correlated with fire frequency, contradicting the intermediate-disturbance hypothesis.
Most bird species and assemblages recovered within two years post-wildfire.
Recovery was faster in structurally complex vegetation (forests, woodlands) than simple types (sedgelands).

Conclusions:

Long-term fire frequency negatively impacts bird species richness, but short-term recovery from single fire events is rapid.
Vegetation structure significantly influences post-fire bird community recovery dynamics.
Postfire vegetation regeneration and specialist availability are key factors in avian recovery.