John J. Battles
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View article: Carbon costs of different pathways for reducing fire hazard in the Sierra Nevada
Carbon costs of different pathways for reducing fire hazard in the Sierra Nevada Open
Restoring a low‐intensity, frequent‐fire regime in fire‐prone forests offers a promising natural climate solution. Management interventions that include prescribed fire and/or mechanical treatments have effectively reduced fire hazards in …
View article: Multi-scale assessment of wildfire use on carbon stocks in the Sierra Nevada, CA
Multi-scale assessment of wildfire use on carbon stocks in the Sierra Nevada, CA Open
Background The active use of wildfire to meet forest management objectives is an important tool to increase the scale of forest restoration in dry, historically frequent-fire forests. While there are many benefits of reintroducing fire to …
View article: The Structural and Functional Impacts of Invasive Psidium cattleianum in Forests on the Island of Hawai’i
The Structural and Functional Impacts of Invasive Psidium cattleianum in Forests on the Island of Hawai’i Open
During the past century, the proliferation of invasive species has contributed to loss of biodiversity and ecosystem degradation. In forests, invasive tree species can alter ecosystem function, but the underlying mechanisms of these change…
View article: The global spectrum of tree crown architecture
The global spectrum of tree crown architecture Open
View article: Informing mixed conifer gap-based silviculture with growth dynamics of regeneration and gap expansion trials
Informing mixed conifer gap-based silviculture with growth dynamics of regeneration and gap expansion trials Open
Where frequent fires are the primary driver of gap dynamics, gap-based silviculture can be deployed to restore fire-maintained structures. We studied the growth of regeneration for six species in a western US mixed conifer forest, followin…
View article: Recent fire history enhances semi-arid conifer forest drought resistance
Recent fire history enhances semi-arid conifer forest drought resistance Open
Climate change is amplifying both wildfire burned area and severity, as well as incidents of drought-induced tree mortality (dieback). Direct effects from climate change amplify wildfires and episodes of drought-induced dieback have well-k…
View article: Multi‐cohort survival of northern red oak seedlings at a northern hardwood forest transition
Multi‐cohort survival of northern red oak seedlings at a northern hardwood forest transition Open
Global change has created less stable forest systems and given urgency to understanding limitations to the establishment of tree seedlings beyond current range boundaries. We quantified trends in 13 years of annual northern red oak (QURU) …
View article: Threats to the persistence of sugar pine (Pinus lambertiana) in the western USA
Threats to the persistence of sugar pine (Pinus lambertiana) in the western USA Open
This study assesses how numerous stressors shape the vital rates (survival, growth, and fecundity) of sugar pine across the vast majority of its range. Sugar pine (Pinus lambertiana Dougl.) is the largest Pinus species, an important timber…
View article: Recent Fire History Enhances Semi-Arid Conifer Forest Drought Resistance
Recent Fire History Enhances Semi-Arid Conifer Forest Drought Resistance Open
View article: Forest restoration and fuels reduction work: Different pathways for achieving success in the<scp>S</scp>ierra<scp>N</scp>evada
Forest restoration and fuels reduction work: Different pathways for achieving success in the<span>S</span>ierra<span>N</span>evada Open
Fire suppression and past selective logging of large trees have fundamentally changed frequent‐fire‐adapted forests in California. The culmination of these changes produced forests that are vulnerable to catastrophic change by wildfire, dr…
View article: Snag dynamics and surface fuel loads in the Sierra Nevada: Predicting the impact of the 2012–2016 drought
Snag dynamics and surface fuel loads in the Sierra Nevada: Predicting the impact of the 2012–2016 drought Open
Forest die-backs linked to extreme droughts are expected to increase as the climate dries and warms. An example is the 2012–2016 hotter drought in California that induced widespread tree mortality in the Sierra Nevada, California. The sudd…
View article: Early warning signals of changing resilience in the biogeochemistry and biology of a northern hardwood forest
Early warning signals of changing resilience in the biogeochemistry and biology of a northern hardwood forest Open
Resilience is the ability of ecosystems to maintain function while experiencing perturbation. Globally, forests are experiencing disturbances of unprecedented quantity, type, and magnitude that may diminish resilience. Early warning signal…
View article: Shaded fuel breaks create wildfire-resilient forest stands: lessons from a long-term study in the Sierra Nevada
Shaded fuel breaks create wildfire-resilient forest stands: lessons from a long-term study in the Sierra Nevada Open
Background In California’s mixed-conifer forests, fuel reduction treatments can successfully reduce fire severity, bolster forest resilience, and make lasting changes in forest structure. However, current understanding of the duration of t…
View article: Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 drought
Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 drought Open
These files include the main processed data and R script used in the analysis for the publication Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 dr…
View article: Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 drought
Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 drought Open
These files include the main processed data and R script used in the analysis for the publication Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 dr…
View article: Snag Dynamics and Surface Fuel Loads in the Sierra Nevada: Predicting the Impact of the 2012-2016 Drought
Snag Dynamics and Surface Fuel Loads in the Sierra Nevada: Predicting the Impact of the 2012-2016 Drought Open
View article: Methods for robust estimates of tree biomass from pollen accumulation rates: Quantifying paleoecological reconstruction uncertainty
Methods for robust estimates of tree biomass from pollen accumulation rates: Quantifying paleoecological reconstruction uncertainty Open
Pollen accumulation rates (PAR, grains cm –2 year –1 ) have been shown to be a reliable but methodologically complex bioproxy for quantitative reconstruction of past tree abundance. In a prior study, we found that the PARs of major tree ta…
View article: Losses of Tree Cover in California Driven by Increasing Fire Disturbance and Climate Stress
Losses of Tree Cover in California Driven by Increasing Fire Disturbance and Climate Stress Open
Forests provide natural climate solutions for sequestering carbon and mitigating climate change, yet are increasingly threatened by increasing temperature and disturbance. Understanding these threats requires accurate information on vegeta…
View article: Tallo: A global tree allometry and crown architecture database
Tallo: A global tree allometry and crown architecture database Open
Data capturing multiple axes of tree size and shape, such as a tree's stem diameter, height and crown size, underpin a wide range of ecological research—from developing and testing theory on forest structure and dynamics, to estimating for…
View article: Tallo database
Tallo database Open
The Tallo database (v1.0.0) is a collection of 498,838 georeferenced and taxonomically standardized records of individual trees for which stem diameter, height and/or crown radius have been measured. Data were compiled fro…
View article: Biomass stocks in California’s fire-prone forests: mismatch in ecology and policy
Biomass stocks in California’s fire-prone forests: mismatch in ecology and policy Open
Restoration of fire-prone forests can promote resiliency to disturbances, yet such activities may reduce biomass stocks to levels that conflict with climate mitigation goals. Using a set of large-scale historical inventories across the Sie…
View article: Land management explains major trends in forest structure and composition over the last millennium in California’s Klamath Mountains
Land management explains major trends in forest structure and composition over the last millennium in California’s Klamath Mountains Open
Significance We provide the first assessment of aboveground live tree biomass in a mixed conifer forest over the late Holocene. The biomass record, coupled with local Native oral history and fire scar records, shows that Native burning pra…
View article: Long term variation of leaf abundance in a northern hardwood forest
Long term variation of leaf abundance in a northern hardwood forest Open
View article: Tallo database
Tallo database Open
The Tallo database (v1.0.0) is a collection of 498,838 georeferenced and taxonomically standardized records of individual trees for which stem diameter, height and/or crown radius have been measured. Data were compiled fro…
View article: Accurate tracking of forest activity key to multi-jurisdictional management goals: A case study in California
Accurate tracking of forest activity key to multi-jurisdictional management goals: A case study in California Open
An essential component of sustainable forest management is accurate monitoring of forest activities. Although monitoring efforts have generally increased for many forests throughout the world, in practice, effective monitoring is complex. …
View article: Author Correction: Nonlinear shifts in infectious rust disease due to climate change
Author Correction: Nonlinear shifts in infectious rust disease due to climate change Open
View article: Nonlinear shifts in infectious rust disease due to climate change
Nonlinear shifts in infectious rust disease due to climate change Open
Range shifts of infectious plant disease are expected under climate change. As plant diseases move, emergent abiotic-biotic interactions are predicted to modify their distributions, leading to unexpected changes in disease risk. Evidence o…
View article: Disruption of the competitive balance between foundational tree species by interacting stressors in a temperate deciduous forest
Disruption of the competitive balance between foundational tree species by interacting stressors in a temperate deciduous forest Open
The complex effects of global environmental changes on ecosystems result from the interaction of multiple stressors, their direct impacts on species and their indirect impacts on species interactions. Air pollution (and resulting depletion…
View article: Resilience: insights from the U.S. LongTerm Ecological Research Network
Resilience: insights from the U.S. LongTerm Ecological Research Network Open
Ecosystems are changing in complex and unpredictable ways, and analysis of these changes is facilitated by coordinated, long‐term research. Meeting diverse societal needs requires an understanding of what populations and communities will b…
View article: Author response for "Disruption of the competitive balance between foundational tree species by interacting stressors in a temperate deciduous forest"
Author response for "Disruption of the competitive balance between foundational tree species by interacting stressors in a temperate deciduous forest" Open