Abrupt fire regime change may cause landscape‐wide loss of mature obligate seeder forests

Bowman, David M. J. S.; Murphy, Brett P.; Neyland, Dominic L. J.; Williamson, Grant J.; Prior, Lynda D.

doi:10.1111/gcb.12433

Global Change Biology

2014

DOI: 10.1111/gcb.12433

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Abrupt fire regime change may cause landscape‐wide loss of mature obligate seeder forests

David M. J. S. Bowman

¹

,

Brett P. Murphy

²

,

Dominic L. J. Neyland

³

et al.

Abstract: Obligate seeder trees requiring high-severity fires to regenerate may be vulnerable to population collapse if fire frequency increases abruptly. We tested this proposition using a long-lived obligate seeding forest tree, alpine ash (Eucalyptus delegatensis), in the Australian Alps. Since 2002, 85% of the Alps bioregion has been burnt by several very large fires, tracking the regional trend of more frequent extreme fire weather. High-severity fires removed 25% of aboveground tree biomass, and switched fuel arra… Show more

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Cited by 246 publications

(233 citation statements)

References 22 publications

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“…This is especially pertinent around built assets and vegetation types vulnerable to fire. Our results are consistent with the 'landscape trap' theory [21,44].…”

Section: Discussionsupporting

confidence: 91%

RETRACTED: Propensities of Old Growth, Mature and Regrowth Wet Eucalypt Forest, and Eucalyptus nitens Plantation, to Burn During Wildfire and Suffer Fire-Induced Crown Death

Winoto-Lewin

¹

,

Sanger

²

,

Kirkpatrick

³

2020

Fire

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…This is especially pertinent around built assets and vegetation types vulnerable to fire. Our results are consistent with the 'landscape trap' theory [21,44].…”

Section: Discussionsupporting

confidence: 91%

RETRACTED: Propensities of Old Growth, Mature and Regrowth Wet Eucalypt Forest, and Eucalyptus nitens Plantation, to Burn During Wildfire and Suffer Fire-Induced Crown Death

Winoto-Lewin

¹

,

Sanger

²

,

Kirkpatrick

³

2020

Fire

Get access via publisher Add to collection Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…This study also determined significant decline in densities of post-2003 wildfire E. delegatensis saplings with increasing time since fire, consistent with observations of rapid post-fire self-thinning of E. delegatensis and other obligate seeding eucalypt species (Bowman et al 2014;Bassett et al 2015). Relative to post-2003 wildfire E. delegatensis densities recorded at equivalent sites in 2004 (Vivian 2005), relative thinning rates were highest at sites affected by lower severity fire, where post-fire individuals have essentially been eliminated (Table 4).…”

Section: Discussionsupporting

confidence: 85%

Stand boundary effects on obligate seeding Eucalyptus delegatensis regeneration and fuel dynamics following high and low severity fire: Implications for species resilience to recurrent fire

Gale

¹

,

Cary

²

2021

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…Our analysis indicated that forest fires were the dominant subtype of wildfires, comprising 80% of all incidents. This prevalence can be attributed to the dense and continuous fuel available in forest ecosystems, supporting the findings of Bowman et al 19 Forest fires, being more intense, have often been associated with greater health impacts compared to brush or land fires. Inhalation of smoke from forest fires, particularly, has been linked to respiratory issues, cardiovascular events, and other acute health impacts 20…”

Section: Discussionsupporting

confidence: 80%

Global Health Impacts of Wildfire Disasters From 2000 to 2023: A Comprehensive Analysis of Mortality and Injuries

Mani

¹

,

Khorram‐Manesh

²

,

Goniewicz

³

2024

Disaster med. public health prep.

Get access via publisher Add to collection Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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