The need for a canopy perspective to understand the importance of phenotypic plasticity for promoting species coexistence and light‐use complementarity in forest ecosystems

Ishiga, Hiroaki; Azuma, Wakana; Nabeshima, Eri

doi:10.1007/s11284-012-1025-6

Cited by 45 publications

(29 citation statements)

References 81 publications

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“…There is limited evidence for temporal light partitioning in temperate grasslands (Anten and Hirose 1999), where phenological differences among species can enhance productivity, decomposition, and nitrogen retention (Mouillot et al 2011). Based on observations in cool-temperate forests in Japan, Ishii et al (2013) hypothesized that seasonal differentiation and variation in diurnal patterns of photosynthesis among species might provide an explanation for positive BEF relationships in forests. The potential for temporal niche complementarity, however, is probably limited by winter conditions in temperate ecosystems.…”

Section: Light Partitioning Through Niche Differences and Intraspecifmentioning

confidence: 99%

“…Such variability in crown allometry is strong enough to affect light capture in forests (Vieilledent et al 2010). Accordingly, individuallevel plasticity in photosynthesis-related traits might be large enough to explain species coexistence and positive diversity effects in forests (Ishii et al 2013). In our experiment, C. odorata grew larger crowns in mixtures FIG.…”

Section: Light Partitioning Through Niche Differences and Intraspecifmentioning

confidence: 99%

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Tropical tree diversity enhances light capture through crown plasticity and spatial and temporal niche differences

Sapijanskas

Paquette

Potvin

et al. 2014

Ecology

198

185

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Light partitioning is often invoked as 2 a mechanism for positive plant diversity effects on ecosystem functioning. Yet evidence for an improved distribution of foliage in space or time in 4 diverse plant communities remains scarce and restricted mostly to temperate grasslands. Here we identify the mechanisms through which tree species diversity affects community-level light capture 6 in a biodiversity experiment with tropical trees that displays overyielding, i.e. enhanced biomass production in mixtures. Using a combination of empirical data, mechanistic models and 8 statistical tools, we develop innovative methods to test for the isolated and combined effects of architectural and temporal niche differences among species as well as plastic changes in crown 10 shape within species. We show that all three mechanisms enhanced light capture in mixtures and that temporal niche differences were the most important driver of this result in our seasonal 12 tropical system. Our study mechanistically demonstrates that niche differences and phenotypic plasticity can generate significant biodiversity effects on ecosystem functioning in tropical forests. 14 Keywords: Biodiversity; Ecosystem functioning; Phenology; Niche differences; Tree; Plantation; Light competition; Crown; Sardinilla project; Phenotypic plasticity; Intraspecific diversity; 16 Overyielding

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Section: Light Partitioning Through Niche Differences and Intraspecifmentioning

confidence: 99%

Section: Light Partitioning Through Niche Differences and Intraspecifmentioning

confidence: 99%

Tropical tree diversity enhances light capture through crown plasticity and spatial and temporal niche differences

Sapijanskas

Paquette

Potvin

et al. 2014

Ecology

198

185

View full text Add to dashboard Cite

show abstract

“…canopy packing) increases community-level light capture and light use efficiency (Parker & Brown, 2000;Zhu, van der Werf, Anten, Vos, & Evers, 2015). The forests with different species of varying crown architectures and functional strategies can utilize different canopy positions in space, resulting in more efficient partitioning of space and light resources (Anten & Hirose, 1999;Ishii et al, 2013;Sapijanskas, Paquette, Potvin, Kunert, & Loreau, 2014) and the improvement of ecosystem productivity such as litterfall (Scherer-Lorenzen, Bonilla, & Potvin, 2010). Therefore, we hypothesized that tree species diversity would increase crown complementarity, thereby enhancing litterfall productivity.…”

Section: Introductionmentioning

confidence: 99%

Tree species diversity promotes litterfall productivity through crown complementarity in subtropical forests

2019

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The role of niche complementarity for driving the positive biodiversity–ecosystem productivity relationship has been widely recognized, but there is scant evidence regarding the role of tree canopy structure on this relationship. Litterfall productivity is proportional to forest net primary productivity in natural forests, and we hypothesized that litterfall productivity would increase with tree species diversity via increased tree crown complementarity. We investigated annual litterfall productivity, species diversity, tree crown architecture, soil moisture content, soil carbon content and stand age across 28 subtropical forest plots in eastern Zhejiang province, China. Simple linear regression was used to examine bivariate relationships among rarified species richness, crown complementarity, total crown volume, soil moisture content, soil carbon content, stand age and litterfall productivity. Structural equation modelling was employed to quantify the direct and indirect effects of species richness on litterfall productivity through tree crown complementarity. Litterfall productivity increased with rarefied species richness via increasing crown complementarity rather than total crown volume. Species richness, crown complementarity and litterfall productivity increased with soil moisture content, while crown complementarity and litterfall productivity increased with soil carbon content. Neither species richness nor crown complementarity increased with stand age, even though litterfall productivity increased with stand age. Synthesis. Our study provides evidence for the strong role of tree crown assembly in shaping ecosystem functions in complex natural forests. Our findings suggest that crown spatial complementarity among trees operates mechanistically to drive the positive tree species diversity–litterfall productivity relationship in subtropical forests. We argue that community and/or ecosystem ecology would benefit from more attention to crown variability among coexisting tree species.

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“…Resource partitioning can also occur due to differences in resource use efficiency (Nijs & Impens ), differences in annual growth rhythms leading to a spatial or temporal complementarity in resource use (Pretzsch ), plasticity in soil or light resource acquisition (Jumpponen et al . ; Ishii, Azuma & Nabeshima ) or stand vertical structure (Morin et al . ) leading to canopy stratification (Ishii & Asano ).…”

Section: Introductionmentioning

confidence: 99%

Overyielding in mixed forests decreases with site productivity

Toïgo¹,

Vallet²,

Pérot³

et al. 2015

Journal of Ecology

183

157

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Summary1. There is a rising interest in the role of species diversity in ecosystem functioning and services, including productivity. Yet, how the diversity-productivity relationship depends on species identity and abiotic conditions remains a challenging issue. 2. We analysed mixture effects on species productivity along site productivity gradients, calculated from a set of abiotic factors, in two biogeographic contexts (highlands and lowlands). We compared the productivity of 5 two-species mixtures (i.e. 10 cases of mixed species) with that of monocultures of the same species. Five main European tree species were considered: sessile oak (Quercus petraea Liebl.), Scots pine (Pinus sylvestris L.), European beech (Fagus sylvatica L.), silver fir (Abies alba Mill.) and Norway spruce (Picea abies (L.) H. Karst). 3. Our data set was compiled from the 2006 to 2010 French National Forest Inventory data base and covers 2361 plots including pure and mixed stands. 4. Overall productivity of mixtures in highlands, that is European beech-Norway spruce, European beech-silver fir and to a lesser extent, silver fir-Norway spruce, was found to be higher than expected from the productivity of corresponding monospecific stands. Overyielding was mainly due to European beech for the first two mixtures and to silver fir for the third one. 5. No effect of mixture was found for sessile oak-Scots pine and sessile oak-European beech stands in lowlands. Overyielding of sessile oak mixed with Scots pine was not strong enough to significantly increase overall stand productivity. Overyielding of European beech was balanced by an underyielding of sessile oak. 6. The mixture effect changed along site productivity gradients for six cases out of the 10 studied, with a stronger and positive effect on sites with low productivity. The magnitude of this change along site productivity gradients varied up to 89% depending on the tree species. 7. Synthesis. The nature of species interaction in mixtures with regard to productivity changes with species assemblage and abiotic conditions. Overyielding is strongest when species grow in highlands on less productive sites. A negative link between mixture effect and site productivity was found, in line with the stress-gradient hypothesis.

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The need for a canopy perspective to understand the importance of phenotypic plasticity for promoting species coexistence and light‐use complementarity in forest ecosystems

Cited by 45 publications

References 81 publications

Tropical tree diversity enhances light capture through crown plasticity and spatial and temporal niche differences

Tropical tree diversity enhances light capture through crown plasticity and spatial and temporal niche differences

Tree species diversity promotes litterfall productivity through crown complementarity in subtropical forests

Overyielding in mixed forests decreases with site productivity

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