Soil nematodes differ in association with native and non-native dune-building grass species

Emery, Sarah M.; Reid, Matthew L.; Hacker, Sally D.

doi:10.1016/j.apsoil.2019.06.009

Cited by 4 publications

(4 citation statements)

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“…Thus, knowledge on the general ecological pattern of disturbance-multifunctional stability relationship and the underlying mechanisms is imperative, particularly in cases where compounded disturbances occur simultaneously. However, the cascading links from disturbances—through multitrophic communities—to numerous ecosystem functions, for example, the faunal community compositional change induced by plant invasion was associated with soil nitrogen cycling 59 , may help us to take a snapshot of potential general pattern of disturbance-multifunctional stability relationship.…”

Section: Discussionmentioning

confidence: 99%

Faunal communities mediate the effects of plant richness, drought, and invasion on ecosystem multifunctional stability

et al. 2022

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Understanding the stability of ecosystem multifunctionality is imperative for maintaining ecosystem health and sustainability under augmented global change. However it remains unknown whether and how biological communities mediate multifunctional stability in response to biodiversity loss and disturbances. Here, we conducted a 3-year experiment by exposing 270 plant communities of four plant richness levels, i.e., 1, 2, 4, or 8 species, to drought and exotic plant invasion disturbances. Then, the direct effects of plant richness, drought and invasion, and their indirect effects mediated by the stability of plant, litter-faunal, and soil-faunal communities on multifunctional stability were disentangled. We found that plant richness increased, while drought and invasion decreased ecosystem multifunctional stability, which were mediated by plant or faunal community stability. By incorporating the stability of communities into the complex ecological mechanisms, the completeness and goodness of ecological models for explaining and maintaining the stability of ecosystem multifunctionality will be improved.

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Section: Discussionmentioning

confidence: 99%

Faunal communities mediate the effects of plant richness, drought, and invasion on ecosystem multifunctional stability

et al. 2022

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“…The results presented here suggest that the reduction in AM fungi enables the plant to compete effectively with itself and other species, leading to the development of continuous monocultures. Such an arrested succession caused by soil community manipulation by an invasive species has been reported once before in sand dune systems [ 49 ]. I. glandulifera is one of the most problematic invasive species across Europe in reducing native plant diversity [ 50 ] and it would appear to have a suite of traits that makes it so successful.…”

Section: Discussionmentioning

confidence: 59%

The Invasive Plant Impatiens glandulifera Manipulates Microbial Associates of Competing Native Species

Razak

Gange

Sutton

et al. 2023

Plants

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Impatiens glandulifera or Himalayan balsam is one of the most invasive weeds across Europe and can seriously reduce native plant diversity. It often forms continuous monocultures along river banks, but the mechanisms of this arrested succession are largely unknown. Here, we investigated the effect of arbuscular mycorrhizal (AM) fungi on balsam competitive ability with two native plant species, Plantago lanceolata and Holcus lanatus. We also studied how competition with Impatiens affects colonisation by foliar endophytes and mycorrhizas of two other co-occurring native species, Urtica dioica and Cirsium arvense. Mycorrhizal colonisation reduced balsam growth when the plants were grown singly, but appeared to have little effect when balsam experienced intra- or interspecific competition. Competition with balsam together with the addition of mycorrhizas had no effect on P. lanceolata biomass, suggesting that the fungi were beneficial to the latter, enabling it to compete effectively with balsam. However, this was not so with H. lanatus. Meanwhile, competition with Impatiens reduced endophyte numbers and mycorrhizal colonisation in U. dioica and C. arvense, leading to enhanced susceptibility of these plants to insect attack. Himalayan balsam is known to degrade soil fungal populations and can also reduce foliar beneficial fungi in neighbouring plants. This allows the plant to compete effectively with itself and other native species, thereby leading to the continuous monocultures.

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“…In its introduced range, other native plants were shown to have more nematode taxa than A. arenaria, supporting the Enemy Release Hypothesis [35]. Introduced A. arenaria was associated with reduced soil nematodes compared with the native Elymus mollis in dune systems of Oregon and Washington [88]. Species growing on home soils may be disadvantaged due to a buildup of species-specific soil pathogens [89].…”

Section: Plant and Soil Pathogens And Beneficial Microbiotamentioning

confidence: 80%

Ammophila Invasion Ecology and Dune Restoration on the West Coast of North America

Pickart

2021

Diversity

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The invasive ecosystem engineer Ammophila arenaria, native to Europe, was first introduced to California (USA) in 1896. More than a century later, it has come to dominate coastal foredune vegetation on the west coast of North America to the near exclusion of native species. A. arenaria builds a narrow, steep, peaked, and densely vegetated foredune, in contrast to the broad, more sparsely vegetated foredunes built by the native Elymus mollis. As such, it has modified dune processes by fixing the foredune and disrupting exchange of sediment between the beach, foredune, and dunefield. In the 1930s the congener A. breviligulata, native to the east coast and Great Lakes USA, was first introduced to Oregon, and has been displacing A. arenaria in southern Washington. Ammophila spp. have drastically reduced biodiversity, outcompeting native plant species, and displacing both invertebrate and vertebrate species. Restoration of west coast dunes through the removal of Ammophila began in the 1990s. Methods usually consist of one or a combination of manual digging, burning/herbicides, or excavation with heavy equipment. There are benefits and disadvantages to each method. Manual removal has proven most effective at restoring foredune form and process but is expensive. Excavation and herbicides may result in the loss of foredune morphology. Managers must articulate goals carefully before selecting restoration methods.

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Soil nematodes differ in association with native and non-native dune-building grass species

Cited by 4 publications

References 51 publications

Faunal communities mediate the effects of plant richness, drought, and invasion on ecosystem multifunctional stability

Faunal communities mediate the effects of plant richness, drought, and invasion on ecosystem multifunctional stability

The Invasive Plant Impatiens glandulifera Manipulates Microbial Associates of Competing Native Species

Ammophila Invasion Ecology and Dune Restoration on the West Coast of North America

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