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83 results for “invasive grasses”
Increasing abundance of an invasive C4 grass is associated with larger community changes away than at home
<p><strong><span>Aim</span></strong><span><strong>:</strong> We evaluated the stands of the invasive grass, <em>Sporobolus cryptandrus</em> in its native North American and non-native European range, where it is a recent invader. Our aim was to reveal how the species' increasing abundance affects functional diversity and ecosystem service provisioning capacities of plant communities in both ranges.</span></p> <p><strong><span>Location</span></strong><span><strong>:</strong> Sand</span> <span>grasslands in the Kiskunság, Hungary, and in Montana, USA.</span></p> <p><strong><span>Methods</span></strong><span><strong>:</strong> All vascular plant species and their relative abundances were recorded </span><span>in a stratified random manner in 1</span><span>m×1m </span><span>plots in</span><span> each range, using the following cover categories of <em>Sporobolus</em> as strata: 1–25%, 26–50%, 50–75%, and 75–100%. The functional characteristics of the plant communities of the two continents were compared. We performed the comparisons of the communities both with and without including Sporobolus.</span></p> <p><strong><span>Results</span></strong><span><strong>: </strong>Increasing <em>Sporobolus</em> cover resulted in a lower functional diversity and species richness, reduced average specific leaf area, and increased height of the whole plant communities in both ranges but these effects were significantly stronger in the non-native stands. <em>Sporobolus</em> also negatively affected the cover of insect-pollinated plant species and the proportion of native perennials, switching the rest of the community from perennial-dominated to annual-dominated. In the plant communities without <em>Sporobolus</em>, increasing <em>Sporobolus</em> cover led to higher specific leaf area and seed mass in both ranges, but average height was decreasing along the <em>Sporobolus</em> abundance gradient in the native range, while it was increasing in the non-native range. </span></p> <p><strong><span>Conclusions</span></strong><span><strong>:</strong> The spread of <em>Sporobolus</em>, away from its native range, leads to the impoverishment of host communities and compromises the biomass and floral resource provisioning capacity of the vegetation to higher trophic levels. Tackling the spread of this new invader should therefore be a priority task.</span></p>
Supplementary material 5 from: Bowman EA, Plowes RM, Gilbert LE (2023) Evidence of plant-soil feedback in South Texas grasslands associated with invasive Guinea grass. NeoBiota 81: 33-51. https://doi.org/10.3897/neobiota.81.86672
Results of t-test examining differences in soil characteristics between invaded and uninvaded sites. Electrical conductivity, phosphorus, and sulfur were log-transformed prior to analysis.
Supplementary material 4 from: Bowman EA, Plowes RM, Gilbert LE (2023) Evidence of plant-soil feedback in South Texas grasslands associated with invasive Guinea grass. NeoBiota 81: 33-51. https://doi.org/10.3897/neobiota.81.86672
Results of one-way ANOVA examining the effect of autoclave time on soil characteristics. Electrical conductivity, phosphorus, and sulfur were log-transformed prior to analysis.
Supplementary material 1 from: Bowman EA, Plowes RM, Gilbert LE (2023) Evidence of plant-soil feedback in South Texas grasslands associated with invasive Guinea grass. NeoBiota 81: 33-51. https://doi.org/10.3897/neobiota.81.86672
Soil sampling sites showing extent of Guinea grass patch (white boundary, I) and adjacent uninvaded grassland (N) with nearby mesquite tree mottes. Google Earth Imagery date 1/13/2014. Scale bar 70m.
Supplementary material 2 from: Bowman EA, Plowes RM, Gilbert LE (2023) Evidence of plant-soil feedback in South Texas grasslands associated with invasive Guinea grass. NeoBiota 81: 33-51. https://doi.org/10.3897/neobiota.81.86672
Initial germination of Guinea grass seed (a) and the seedbank (b) during week 1 was higher in soil from invaded sites than uninvaded sites. All data shown here are non-transformed.
Supplementary material 3 from: Bowman EA, Plowes RM, Gilbert LE (2023) Evidence of plant-soil feedback in South Texas grasslands associated with invasive Guinea grass. NeoBiota 81: 33-51. https://doi.org/10.3897/neobiota.81.86672
Effect of soil handling method on Guinea grass seedling count (a), native community plant abundance (b), and native community biomass (c). MSS: mixed soil sampling; ISS: individual soil sampling. All data shown are non-transformed.
Scaling up experimental stress responses of grass invasion to predictions of continental-level range suitability
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Field-based ecological studies to assess prospective biological control agents for invasive alien plants: an example from giant rat’s tail grass
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An invasive grass species has both local and broad-scale impacts on diversity: Potential mechanisms and implications
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Data from: Comparing the genetic architecture and potential response to selection of native and invasive populations of reed canary grass
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Data from: Effect of plant root symbionts on performance of native woody species in competition with an invasive grass in multispecies microcosms
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Increasing abundance of an invasive C4 grass is associated with larger community changes away than at home
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Data from: Clonal integration enhances performance of an invasive grass
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Data from: Negative effects of an exotic grass invasion on small-mammal communities
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Comparing the impacts of an invasive grass on nitrogen cycling and ammonia-oxidizing Prokaryotes in high-nitrogen forests, open fields, and wetlands
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Data from: Integrating local knowledge and research to refine the management of an invasive non-native grass in critically endangered grassy woodlands
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Native ants help to spread an invasive African grass in the Cerrado
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Data from: Fire and non-native grass invasion interact to suppress tree regeneration in temperate deciduous forests
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Data from: Consequences of seed origin and biological invasion for early establishment of a North American grass species
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Data from: Effects of a non-native grass invasion decline over time
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International Brain Laboratory public data
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OpenNeuro
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