Intraspecific facilitation explains the persistence of <i>Phragmites australis</i> in modified coastal wetlands

Reijers, Valérie C.; Akker, Marloes van den; Cruijsen, Peter M. J. M.; Lamers, Leon P. M.; Heide, Tjisse van der

doi:10.1002/ecs2.2842

Cited by 17 publications

(10 citation statements)

References 71 publications

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“…Notably, direct facilitation among non‐native plants can also occur at the intraspecific level (e.g. Proença et al., 2019; Reijers et al., 2019; Reinhart et al., 2006).…”

Section: Non‐natives Directly Facilitating Other Non‐natives (Iii)mentioning

confidence: 99%

Facilitation and the invasibility of plant communities

Cavieres

2021

Journal of Ecology

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One of the most studied emergent functions of plant community diversity is the resistance of diverse communities to non‐native invasions. As emphasized in this Special Feature, facilitation among native species is a key mechanism by which biodiversity increases various functions, including resistance to invasion. However, when diverse assemblages facilitate non‐native species, diversity–invasibility resistance may be compromised. Here, I review the scientific literature on plant invasion in which facilitative interactions, either among native and non‐native plant species or among non‐native species, affect community invasibility. Native species can directly facilitate non‐native species, and also generate net indirect facilitative effects through suppressing species that compete with non‐native invaders, but examples of the latter are not common. Such direct and indirect facilitation among non‐native species contributes to ‘invasional meltdown’ that restructures native communities. In general, facilitative interactions between native and non‐native species increased with environmental stress, suggesting that community diversity might resist invasion more effectively in environmentally favourable sites, whereas in environmentally severe sites, facilitative interactions may contribute to invasibility. Synthesis. Native and non‐native species can facilitate each other in direct and indirect ways, with important consequences for the invasibility of communities. Facilitative interactions may alter the fundamental relationship between diversity and invasibility, particularly in environmentally severe habitats.

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“…Notably, direct facilitation among non‐native plants can also occur at the intraspecific level (e.g. Proença et al., 2019; Reijers et al., 2019; Reinhart et al., 2006).…”

Section: Non‐natives Directly Facilitating Other Non‐natives (Iii)mentioning

confidence: 99%

Facilitation and the invasibility of plant communities

Cavieres

2021

Journal of Ecology

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“…We expect different clonal expansion strategies to be advantageous in different environmental settings. In physically challenging environments a tight shoot clumping – indicative of Brownian‐like expansion (Reijers et al ., 2019b) – may enhance engineering strength and protect plants against hydrodynamic forcing or alleviate local anoxia stress (Silliman et al ., 2015; Maximiliano‐Cordova et al ., 2019; Reijers et al ., 2019c; de Battisti and Griffin, 2020). However, in more benign environments a Brownian‐like pattern may hamper plant expansion and local nutrient limitations may restrict growth potential (Fischman et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Sediment availability provokes a shift from Brownian to Lévy‐like clonal expansion in a dune building grass

et al. 2020

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In biogeomorphic landscapes, plant traits can steer landscape development through plant‐mediated feedback interactions. Interspecific differences in clonal expansion strategy can therefore lead to the emergence of different landscape organisations. Yet, whether landscape‐forming plants adopt different clonal expansion strategies depending on their physical environment remains to be tested. Here, we use a field survey and a complementary mesocosm approach to investigate whether sediment deposition affects the clonal expansion strategy employed by dune‐building marram grass individuals. Our results reveal a consistent shift in expansion pattern from more clumped, Brownian‐like, movement in sediment‐poor conditions, to patchier, Lévy‐like, movement under high sediment supply rates. Additional model simulations illustrate that the sediment‐dependent shift in movement strategies induces a shift in optimisation of the cost–benefit relation between landscape engineering (i.e. dune formation) and expansion. Plasticity in expansion strategy may therefore allow landscape‐forming plants to optimise their engineering ability depending on their physical landscape.

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“…Reed marshes can become omnipresent, starting from the edges of the basin, as soon as back-barrier salinity and water depth become suitable for reed growth. Reed is known to tolerate brackish conditions via feedback mechanisms that reduce its salt stress (Reijers et al, 2019). While its growth optimum is around 5&, it can tolerate up to 15& salinity (Lissner & Schierup, 1997).…”

Section: Role In Final Phase Of Tidal Basin Infillingmentioning

confidence: 99%

Vegetation and peat accumulation steer Holocene tidal–fluvial basin filling and overbank sedimentation along the Old Rhine River, The Netherlands

et al. 2022

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In the transformation from tidal systems to freshwater coastal landscapes, plants act as eco-engineering species that reduce hydrodynamics and trap sediment, but nature and timing of the mechanisms of land creation along estuaries remains unclear. This article focuses on the Old Rhine estuary (The Netherlands) to show the importance of vegetation in coastal landscape evolution, predominantly regarding tidal basin filling and overbank morphology. This estuary hosted the main outflow channel of the river Rhine between ca 6500 to 2000 cal BP, and was constrained by peat during most of its existence. This study reconstructs its geological evolution, by correlating newly integrated geological data and new field records to varying conditions. Numerical modelling was performed to test the inferred mechanisms. It was found that floodbasin vegetation and resulting organic accumulation strongly accelerated back-barrier infill, by minimizing tidal influence. After tidal and wave transport had already sufficiently filled the back-barrier basin, reed rapidly expanded from its edges under brackish conditions, as shown by diatom analysis and datings. Reed growth provided a positive infilling feedback by reducing tidal flow and tidal prism, accelerating basin infilling. New radiocarbon dates show that large-scale crevassing along the Old Rhine River driven by tidal backwater effectonly started as nutrient-rich river water transformed the floodbasin into an Alder carr in a next phase of estuary evolution. Such less dense vegetation promotes crevassing as sediments are more easily transported into the floodbasin. As river discharge increased and estuary mouth infilling progressed, crevasse activity diminished around 3800 to 3000 cal BP, likely due to a reduced tidal backwater effect. The insights from this data-rich Holocene study showcase the dominant role that

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Intraspecific facilitation explains the persistence of Phragmites australis in modified coastal wetlands

Cited by 17 publications

References 71 publications

Facilitation and the invasibility of plant communities

Facilitation and the invasibility of plant communities

Sediment availability provokes a shift from Brownian to Lévy‐like clonal expansion in a dune building grass

Vegetation and peat accumulation steer Holocene tidal–fluvial basin filling and overbank sedimentation along the Old Rhine River, The Netherlands

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