Biotic responses to climate extremes in terrestrial ecosystems

Thakur, Madhav P.; Risch, Anita C.; Putten, W.H. van der

doi:10.1016/j.isci.2022.104559

Cited by 31 publications

(21 citation statements)

References 192 publications

(248 reference statements)

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“…for a single growing season or shorter. However, under severe and prolonged drought, woody species will likely also show strong negative responses [3,61].…”

Section: Discussionmentioning

confidence: 99%

“…Anthropogenic climate change is affecting terrestrial ecosystems worldwide [1–3]. As primary producers, plants form the base of both above- and belowground food webs [4,5] and as such play a central role in carbon cycling and overall ecosystem function.…”

Section: Introductionmentioning

confidence: 99%

“…Anthropogenic climate change is affecting terrestrial ecosystems worldwide [1][2][3]. As primary producers, plants form the base of both above-and belowground…”

Section: Introductionmentioning

confidence: 99%

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Combined effects of warming and drought on plant biomass depend on plant woodiness and community type: a meta-analysis

et al. 2022

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Global warming and precipitation extremes (drought or increased precipitation) strongly affect plant primary production and thereby terrestrial ecosystem functioning. Recent syntheses show that combined effects of warming and precipitation extremes on plant biomass are generally additive, while individual experiments often show interactive effects, indicating that combined effects are more negative or positive than expected based on the effects of single factors. Here, we examined whether variation in biomass responses to single and combined effects of warming and precipitation extremes can be explained by plant growth form and community type. We performed a meta-analysis of 37 studies, which experimentally crossed warming and precipitation treatments, to test whether biomass responses to combined effects of warming and precipitation extremes depended on plant woodiness and community type (monocultures versus mixtures). Our results confirmed that the effects of warming and precipitation extremes were overall additive. However, combined effects of warming and drought on above- and belowground biomass were less negative in woody- than in herbaceous plant systems and more negative in plant mixtures than in monocultures. We further show that drought effects on plant biomass were more negative in greenhouse- than in field studies, suggesting that greenhouse experiments may overstate drought effects in the field. Our results highlight the importance of plant system characteristics to better understand plant responses to climate change.

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“…for a single growing season or shorter. However, under severe and prolonged drought, woody species will likely also show strong negative responses [3,61].…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Combined effects of warming and drought on plant biomass depend on plant woodiness and community type: a meta-analysis

et al. 2022

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“…It is crucial to understand the sustainability of functions and services in tropical forest for ecosystem management in context of global change (Lohbeck et al, 2015). In the Anthropocene, deforestation and climate changes continue to exert tremendous stress on ecosystems (Broadbent et al, 2008;Thakur et al, 2022), inducing detrimental consequences for tropical forest diversity and associated ecosystem functions (Emanuel, 2005;Miller et al, 2011;Olivero-Lora et al, 2022). Several such disturbances, like drought, heat waves, disease outbreaks, and extreme weather events (e.g., typhoon) induce tree mortality and heavy defoliation, causing canopy senescence and resulting in numerous canopy gaps (Corona-Lozada et al, 2019;Thakur et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…In the Anthropocene, deforestation and climate changes continue to exert tremendous stress on ecosystems (Broadbent et al, 2008;Thakur et al, 2022), inducing detrimental consequences for tropical forest diversity and associated ecosystem functions (Emanuel, 2005;Miller et al, 2011;Olivero-Lora et al, 2022). Several such disturbances, like drought, heat waves, disease outbreaks, and extreme weather events (e.g., typhoon) induce tree mortality and heavy defoliation, causing canopy senescence and resulting in numerous canopy gaps (Corona-Lozada et al, 2019;Thakur et al, 2022). As a double-edged sword, disturbance-induced formation of canopy gaps cause more opportunity for germination from the soil seed bank, as well as huge loss of tree biomass (Barlow and Peres, 2004).…”

Section: Introductionmentioning

confidence: 99%

Light effects on seedling growth in simulated forest canopy gaps vary across species from different successional stages

Zhou¹,

Thakur²,

Jia³

et al. 2023

Front. For. Glob. Change

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Tropical forests continue to suffer from various kinds of disturbances in the Anthropocene. An immediate impact of disturbances on forest ecosystems is the creation of numerous large and small canopy gaps, which dramatically affect forest structure and function. Yet, we know little about the effect of canopy gaps on forest successional trajectory. More specifically, the responses of seedlings from different successional stages to increased light intensity under large and small canopy gaps in understory remain unclear. In this study, dominant tree seedlings from early-, mid-, and late-successional stages were selected, respectively from a tropical montane forest in Hainan Island, China to study their growth rate, biomass and traits. Our results showed that the light condition under small canopy gaps (SG, 10–15% of full sunlight) and large canopy gaps (LG, 40–50% of full sunlight) induced greater increment of relative growth rates for seedlings from early- and mid-successional stages relative to that in late-successional stage. Both SG and LG also significantly increased photosynthesis rate, leaf area (LA), light saturation point (LSP), root mass ratio (RMR) and root: shoot ratio, but decreased specific leaf area (SLA) of seedlings across successional stages. Tree seedlings from the early-successional stage displayed the greatest decrease in leaf mass ratio, increase in LA, LSP, and RMR, in comparison to those from mid- and late- successional stages. Light condition and SLA were the most important factors for seedlings’ relative growth rate across successional stages. SLA connected the interaction between the light condition and successional stage on seedlings’ growth, thereby jointly explaining the 93% variation of seedlings’ growth, combining with area-based light saturated rate of CO2 assimilation. Our study highlights the distinct effect of disturbance-induced canopy gaps on seedling regeneration in the understory in tropical forest due to the variation of light intensity. We suspect that the seedlings from late-successional stage will recover relatively slow after disturbances causing canopy losses, which can have detrimental impacts on structure feature and successional trajectory in tropical forest, as well as forest-based ecosystem services.

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Effects of climate on the phenology of Annona senegalensis Pers. (Annonaceae) and the distribution of associated insects in Burkina Faso

Dao,

Romba,

Jaloux

et al. 2024

Ecology and Evolution

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Climate change and global warming in the Sahelian region cause dramatic drought and advancing of the desert. This phenomenon could affect the plant survival and community composition, but even for surviving plants, it could affect their phenology and the insect community associated with them. In a space‐for‐time approach, we studied the case of Annona senegalensis Pers. (Annonaceae), a common shrub in tropical areas, to determine the impact of climate change on its phenology and the insects associated with its flowers and fruits. We determined the phenology phases of Annona senegalensis during a 1‐year period and assessed the abundance and diversity of insects in the Sudanian and the Sudano‐Sahelian climatic zones of Burkina Faso. Temperature, rainfall and relative humidity were recorded during 12 months in two sites per zone. Leafing of Annona senegalensis lasted 10 months in the Sudanian zone, flowering and fruiting were 3 months long. In the Sudano‐Sahelian zone, leafing lasted 8 months while flowering and fruiting were 3 and 4 months long, respectively. A total of 10,040 insects belonging to 48 species were collected in the two climatic zones. Forty‐six species were found in the Sudanian zone while 25 species were recorded in the Sudano‐Sahelian one. The variations in the plant phenology and the insect community were mainly due to the variation in rainfall across both climatic zones. Our results emphasize that advancing of the desert due to climate change could not only affect the survival of plants but for resistant species it also affect their interactions with insects and the whole insect community associated.

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Biotic responses to climate extremes in terrestrial ecosystems

Cited by 31 publications

References 192 publications

Combined effects of warming and drought on plant biomass depend on plant woodiness and community type: a meta-analysis

Combined effects of warming and drought on plant biomass depend on plant woodiness and community type: a meta-analysis

Light effects on seedling growth in simulated forest canopy gaps vary across species from different successional stages

Effects of climate on the phenology of Annona senegalensis Pers. (Annonaceae) and the distribution of associated insects in Burkina Faso

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