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Understory plant communities show resistance to drought, hurricanes, and experimental warming in a wet tropical forest

Journal Article · · Frontiers in Forests and Global Change
 [1];  [2];  [2];  [3];  [4];  [5]
  1. University of Vermont, Burlington, VT (United States); University of Vermont Burlington, United States
  2. USDA Forest Service, Rio Piedras (Puerto Rico)
  3. Michigan Technological University, Houghton, MI (United States)
  4. US Geological Survey, Moab, UT (United States). Southwest Biological Science Center
  5. Oklahoma State University, Stillwater, OK (United States)
Global climate change has led to rising temperatures and to more frequent and intense climatic events, such as storms and droughts. Changes in climate and disturbance regimes can have non-additive effects on plant communities and result in complicated legacies we have yet to understand. This is especially true for tropical forests, which play a significant role in regulating global climate. We used understory vegetation data from the Tropical Responses to Altered Climate Experiment (TRACE) in Puerto Rico to evaluate how plant communities responded to climate warming and disturbance. The TRACE understory vegetation was exposed to a severe drought (2015), 2 years of experimental warming (4°C above ambient in half of the plots, 2016–2017 and 2018–2019), and two major hurricanes (Irma and María, September 2017). Woody seedlings and saplings were censused yearly from 2015 to 2019, with an additional census in 2015 after the drought ended. We evaluated disturbance-driven changes in species richness, diversity, and composition across ontogeny. We then used Bayesian predictive trait modeling to assess how species responded to disturbance and how this might influence the functional structure of the plant community. Our results show decreased seedling richness after hurricane disturbance, as well as increased sapling richness and diversity after warming. We found a shift in species composition through time for both seedlings and saplings, yet the individual effects of each disturbance were not significant. At both ontogenetic stages, we observed about twice as many species responding to experimental warming as those responding to drought and hurricanes. Predicted changes in functional structure point to disturbance-driven functional shifts toward a mixture of fast-growing and drought-tolerant species. Our findings demonstrate that the tropical forest understory community is more resistant to climatic stressors than expected, especially at the sapling stage. However, early signs of changes in species composition suggest that, in a warming climate with frequent droughts and hurricanes, plant communities might shift over time toward fast-growing or drought-tolerant species.
Research Organization:
University of Vermont, Burlington, VT (United States)
Sponsoring Organization:
Long Term Research in Environmental Biology (LTREB); National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
89243018SSC000014; 89243119SSC000014; SC0008168; SC0011806; SC0012000; SC0018942; SC0022095
OSTI ID:
1981083
Journal Information:
Frontiers in Forests and Global Change, Journal Name: Frontiers in Forests and Global Change Vol. 5; ISSN 2624-893X
Publisher:
Frontiers Media S.A.Copyright Statement
Country of Publication:
United States
Language:
English

References (108)

Data from: Deterministic tropical tree community turnover: evidence from patterns of functional beta diversity along an elevational gradient dataset January 2019
The Saharan Air Layer as an Early Rainfall Season Suppressant in the Eastern Caribbean: The 2015 Puerto Rico Drought: Saharan Dust and Puerto Rico Drought journal October 2017
Infrared heater system for warming tropical forest understory plants and soils journal January 2018
Tropical understory herbaceous community responds more strongly to hurricane disturbance than to experimental warming journal July 2020
Generalized joint attribute modeling for biodiversity analysis: median‐zero, multivariate, multifarious data journal January 2017
Resistance, resilience, and vulnerability of social‐ecological systems to hurricanes in Puerto Rico journal October 2020
Why species tell more about traits than traits about species: predictive analysis journal August 2016
Changing disturbance regimes, ecological memory, and forest resilience journal September 2016
Photosynthetic Characteristics of Tropical Trees Along Successional Gradients book January 1996
Nonmetric multidimensional scaling: A numerical method journal June 1964
Recent intense hurricane response to global climate change journal March 2013
Negative density-dependent mortality varies over time in a wet tropical forest, advantaging rare species, common species, or no species journal July 2015
Only sun-lit leaves of the uppermost canopy exceed both air temperature and photosynthetic thermal optima in a wet tropical forest journal May 2021
Disturbance and resilience in the Luquillo Experimental Forest journal January 2021
Uncertainty analysis of multiple global GPP datasets in characterizing the lagged effect of drought on photosynthesis journal June 2020
A canopy trimming experiment in Puerto Rico: The response of litter decomposition and nutrient release to canopy opening and debris deposition in a subtropical wet forest journal November 2014
Special Issue: Resilience of tropical dry forests to extreme disturbance events journal October 2018
Disturbance and long-term patterns of rainfall and throughfall nutrient fluxes in a subtropical wet forest in Puerto Rico journal February 2007
Remote sensing and statistical analysis of the effects of hurricane María on the forests of Puerto Rico journal September 2020
Tropical forests and global change: filling knowledge gaps journal August 2013
The Impacts of Droughts in Tropical Forests journal July 2016
Impacts of warming on tropical lowland rainforests journal November 2011
Are tropical forests near a high temperature threshold?: TEMPERATURE EFFECTS ON TROPICAL FORESTS journal March 2008
Extreme Rainfall Associated With Hurricane Maria Over Puerto Rico and Its Connections to Climate Variability and Change journal March 2019
Accurate Simulation of Both Sensitivity and Variability for Amazonian Photosynthesis: Is It Too Much to Ask? journal August 2021
Clouds and temperature drive dynamic changes in tropical flower production journal July 2013
Drought drives rapid shifts in tropical rainforest soil biogeochemistry and greenhouse gas emissions journal April 2018
Hurricane María tripled stem breaks and doubled tree mortality relative to other major storms journal March 2019
The tropical forest carbon cycle and climate change journal July 2018
Unprecedented drought over tropical South America in 2016: significantly under-predicted by tropical SST journal July 2017
Soil properties explain tree growth and mortality, but not biomass, across phosphorus-depleted tropical forests journal February 2020
Hurricane-Induced Rainfall is a Stronger Predictor of Tropical Forest Damage in Puerto Rico Than Maximum Wind Speeds journal March 2020
The successional status of tropical rainforest tree species is associated with differences in leaf carbon isotope discrimination and functional traits journal January 2007
A handbook of protocols for standardised and easy measurement of plant functional traits worldwide journal January 2003
Tropical rain forest tree growth and atmospheric carbon dynamics linked to interannual temperature variation during 1984-2000 journal April 2003
Downscaling CMIP5 climate models shows increased tropical cyclone activity over the 21st century journal July 2013
Trait-mediated assembly processes predict successional changes in community diversity of tropical forests journal March 2014
Disturbances Can Promote and Hinder Coexistence of Competitors in Ongoing Partner Choice Mutualisms journal March 2020
When the rainforest dries: Drought effects on a montane tropical stream ecosystem in Puerto Rico journal June 2020
Differential responses to changes in growth temperature between trees from different functional groups and biomes: a review and synthesis of data journal April 2010
An imperative need for global change research in tropical forests journal September 2013
Sources or sinks? The responses of tropical forests to current and future climate and atmospheric composition journal March 2004
Extreme weather and climate events with ecological relevance: a review journal May 2017
High tolerance of tropical sapling growth and gas exchange to moderate warming journal October 2017
The world-wide ‘fast-slow’ plant economics spectrum: a traits manifesto journal February 2014
Testing predictions of the Janzen-Connell hypothesis: a meta-analysis of experimental evidence for distance- and density-dependent seed and seedling survival journal June 2014
Revisiting the Holy Grail: using plant functional traits to understand ecological processes: Plant functional traits journal April 2016
Impacts of climate variability on tree demography in second growth tropical forests: the importance of regional context for predicting successional trajectories journal November 2016
A historical and comparative review of 50 years of root data collection in Puerto Rico journal March 2020
Urgent need for warming experiments in tropical forests journal March 2015
Environmental heterogeneity and biotic interactions mediate climate impacts on tropical forest regeneration journal September 2017
Altered climate leads to positive density‐dependent feedbacks in a tropical wet forest journal April 2020
Experimental warming and its legacy effects on root dynamics following two hurricane disturbances in a wet tropical forest journal September 2021
Seedling recruitment in a hurricane-driven tropical forest: light limitation, density-dependence and the spatial distribution of parent trees journal April 2005
Infrared heater arrays for warming ecosystem field plots: INFRARED HEATER ARRAYS journal November 2007
Drought stress and tropical forest woody seedlings: effect on community structure and composition journal June 2005
Abiotic and biotic drivers of seedling survival in a hurricane-impacted tropical forest journal November 2009
An ecological perspective on extreme climatic events: a synthetic definition and framework to guide future research: Defining extreme climate events journal April 2011
The productivity, metabolism and carbon cycle of tropical forest vegetation: Carbon cycle of tropical forests journal December 2011
Evaluating ecosystem responses to rising atmospheric CO2 and global warming in a multi-factor world journal May 2004
Drought-mortality relationships for tropical forests journal July 2010
The relationship between wood density and mortality in a global tropical forest data set journal September 2010
Tropical forests in a warming world: Meetings journal December 2011
Vulnerability and Resilience of Tropical Forest Species to Land-Use Change journal December 2009
The Future of Tropical Species on a Warmer Planet journal December 2009
The Potential for Species Conservation in Tropical Secondary Forests journal December 2009
Species-specific Seedling Responses to Hurricane Disturbance in a Puerto Rican Rain Forest1 journal December 2003
Factors Affecting Mortality and Resistance to Damage Following Hurricanes in a Rehabilitated Subtropical Moist Forest1 journal February 2005
Detecting Tropical Forests' Responses to Global Climatic and Atmospheric Change: Current Challenges and a Way Forward journal January 2007
Diversity of Tropical Tree Seedling Responses to Drought journal November 2007
Variation in Susceptibility to Hurricane Damage as a Function of Storm Intensity in Puerto Rican Tree Species: Susceptibility to Hurricane Damage journal August 2009
Elevated night‐time temperatures increase growth in seedlings of two tropical pioneer tree species journal December 2012
Disentangling the effects of environment and ontogeny on tree functional dimensions for congeneric species in tropical forests journal January 2020
Experimental warming across a tropical forest canopy height gradient reveals minimal photosynthetic and respiratory acclimation journal July 2021
Diversity in Tropical Rain Forests and Coral Reefs journal March 1978
How climate change affects extreme weather events journal June 2016
Changes in the herbaceous and vine communities at the Bisley Experimental Watersheds, Puerto Rico, following Hurricane Hugo journal September 1999
Mechanisms of Maintenance of Species Diversity journal November 2000
Climate Change Implications for Tropical Islands: Interpolating and Interpreting Statistically Downscaled GCM Projections for Management and Planning* journal February 2016
Dynamical Downscaling Projections of Twenty-First-Century Atlantic Hurricane Activity: CMIP3 and CMIP5 Model-Based Scenarios journal September 2013
Insights from a New High-Resolution Drought Atlas for the Caribbean Spanning 1950–2016 journal October 2017
Uncertainty in the construction of global knowledge of tropical forests journal December 2010
lmerTest Package: Tests in Linear Mixed Effects Models journal January 2017
Landscape and Regional Impacts of Hurricanes in Puerto rico journal May 2004
A Neighborhood Analysis of tree Growth and Survival in a Hurricane-Driven Tropical Forest journal November 2004
Structural and Functional Responses of a Subtropical Forest to 10 Years of Hurricanes and Droughts journal August 2005
Functional traits and environmental filtering drive community assembly in a species-rich tropical system journal February 2010
Functional traits and the growth–mortality trade‐off in tropical trees journal December 2010
Multidimensional trade-offs in species responses to disturbance: implications for diversity in a subtropical forest journal January 2012
Temporal turnover in the composition of tropical tree communities: functional determinism and phylogenetic stochasticity journal March 2012
PERMANOVA, ANOSIM, and the Mantel test in the face of heterogeneous dispersions: What null hypothesis are you testing? journal November 2013
Arbuscular mycorrhizal fungi counteract the Janzen-Connell effect of soil pathogens journal February 2015
Ontogenetic shifts in trait-mediated mechanisms of plant community assembly journal August 2015
Responses of Tree Species to Hurricane Winds in Subtropical Wet Forest in Puerto Rico: Implications for Tropical Tree Life Histories journal December 1994
Fine Root Dynamics Following Single and Multiple Disturbances in a Subtropical Wet Forest Ecosystem journal December 1993
Physical Aspects of Hurricane Hugo in Puerto Rico journal December 1991
Summary of the Effects of Caribbean Hurricanes on Vegetation journal December 1991
The First Five Years in the Reorganization of Aboveground Biomass and Nutrient Use Following Hurricane Hugo in the Bisley Experimental Watersheds, Luquillo Experimental Forest, Puerto Rico journal December 1996
An Introduction to the Physiography and History of the Bisley Experimental Watersheds in the Luquillo Mountains of Puerto Rico report January 1989
Photosynthetic and Respiratory Acclimation of Understory Shrubs in Response to in situ Experimental Warming of a Wet Tropical Forest journal September 2020
Temperate and Tropical Forest Canopies are Already Functioning beyond Their Thermal Thresholds for Photosynthesis journal January 2018
Effects of Climate Change on Central Amazonian Forests: a two Decades Synthesis of Monitoring Tropical Biodiversity journal June 2020
Functional traits and environmental filtering drive community assembly in a species-rich tropical system collection January 2016
Multidimensional trade-offs in species responses to disturbance: implications for diversity in a subtropical forest collection January 2016
Arbuscular mycorrhizal fungi counteract the Janzen-Connell effect of soil pathogens collection January 2016
Ontogenetic shifts in trait-mediated mechanisms of plant community assembly collection January 2016
A Neighborhood Analysis of tree Growth and Survival in a Hurricane-Driven Tropical Forest collection January 2016
Structural and Functional Responses of a Subtropical Forest to 10 Years of Hurricanes and Droughts collection January 2016