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10 results for “invasive arthropods”
Data from: Restoration of native saltmarshes can reverse arthropod assemblages and trophic interactions changed by a plant invasion
<p><span>Plant invasions profoundly impact both</span> <span>natural and managed ecosystems, and removal of the invasive plants addresses only part of the problem of restoring impacted areas. The rehabili</span><span>tation of diverse communities and their ecosystem functions following removal of invasive plants is an important goal of ecological restoration. Arthropod assemblages and trophic interactions are important indicators of the success of restoration, but have largely been overlooked in saltmarshes. We determined how arthropod assemblages and trophic interactions changed with the invasion of the exotic plant <em>Spartina</em> <em>alterniflora</em> and with the restoration of the native plant <em>Phragmites australis</em> following <em>Spartina </em>removal in a Chinese saltmarsh. We investigated multiple biotic and abiotic variables to gain insight into the factors underlying the changes in arthropod assemblages and trophic structure. We found that </span><span>although <em>Spartina</em> invasion had changed arthropod diversity, community structure, feeding-guild composition, and the diets of arthropod natural enemies in the saltmarsh, these changes could be reversed by the restoration of native <em><span>Phragmites</span></em> vegetation following removal of the invader. </span><span>The v</span><span>ariation in arthropod assemblages and </span><span>trophic structure </span><span>were </span><span>critically </span><span>associated with four biotic and abiotic variables (aboveground biomass, plant density, leaf N, and soil salinity)<span>. </span></span><span>Our findings demonstrate the positive effects of controlling invasive plants on biodiversity and nutrient cycling, and </span><span>provide a foundation </span><span>for assessing the efficacy of ecological restoration projects in saltmarshes.</span></p>
Supplementary material 1 from: Spafford R, Lortie C, Butterfield B (2013) A systematic review of arthropod community diversity in association with invasive plants. NeoBiota 16: 81-102. https://doi.org/10.3897/neobiota.16.4190
Supplementary material 1 from: Spafford R, Lortie C, Butterfield B (2013) A systematic review of arthropod community diversity in association with invasive plants. NeoBiota 16: 81-102. https://doi.org/10.3897/neobiota.16.4190
Supplementary material 2 from: Spafford R, Lortie C, Butterfield B (2013) A systematic review of arthropod community diversity in association with invasive plants. NeoBiota 16: 81-102. https://doi.org/10.3897/neobiota.16.4190
Supplementary material 2 from: Spafford R, Lortie C, Butterfield B (2013) A systematic review of arthropod community diversity in association with invasive plants. NeoBiota 16: 81-102. https://doi.org/10.3897/neobiota.16.4190
Data from: Restoration of native saltmarshes can reverse arthropod assemblages and trophic interactions changed by a plant invasion
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Data from: Plant invasion overrides drought in suppressing arthropod abundance and richness
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The invasive pathogenic fungus of ash trees alters arthropod predator – prey food webs in forest plantations
<p>The data set contains data on:</p> <p>1] Prey type and size (sheet1: prey type and size). In the cells, prey length in mm is provided for each prey item. NA is stated for a prey item that could not be measured. In this sheet, the plot ids and the spider ids are also stated, which enables connection with other sheets. Note: more prey items caught by an individual are stated in one row if they are of different type. Prey items of a same type caught by an individual are itemized in more rows.</p> <p>2] Information about spider individuals (sheet2: spiders). For each spider individual, it is provided its id, so it can be connected with sheet 1, plot id where it was collected, when it was collected (month), web type, and prosoma length (mm). </p> <p>3] Characteristics of sampling plots (sheet3: environmental data). It is provided plot id, age, infestation degree by H<em>ymenoscyphus fraxineus</em>, canopy openness, shrub coverage, and herb coverage.</p> <p>4] Potential prey of spiders (sheet 4: potential prey). Standardized no. of prey per trap (20 x 15 cm, both sides were sticky) in each plot.</p>
Data from: Testing the effects of ant invasions on non-ant arthropods with high-resolution taxonomic data
Invasions give rise to a wide range of ecological effects. Many invasions proceed without noticeable impacts on the resident biota, whereas others shift species composition and even alter ecosystem function. Ant invasions generate a broad spectrum of ecological effects, but controversy surrounds the extent of these impacts, especially with regard to how other arthropods are affected. This uncertainty in part results from the widespread use of low-resolution taxonomic data, which can mask the presence of other introduced species and make it difficult to isolate the effects of ant invasions on native species. Here, we use high-resolution taxonomic data to examine the effects of Argentine ant invasions on arthropods on Santa Cruz Island, California. We sampled arthropods in eight pairs of invaded and uninvaded plots and then collaborated with taxonomic experts to identify taxa in four focal groups: spiders, bark lice, beetles, and ants. Spiders, bark lice, and beetles made up ~40% of the 9868 non-ant arthropod individuals sampled; the majority of focal group arthropods were putatively native taxa. Although our results indicate strong negative effects of the Argentine ant on native ants, as is well documented, invaded and uninvaded plots did not differ with respect to the richness, abundance, or species composition of spiders, bark lice, and beetles. One common, introduced species of bark louse was more common in uninvaded plots than in invaded plots, and including this species into our analyses changed the relationship between bark louse richness vs. L. humile abundance from no relationship to a significant negative relationship. This case illustrates how failure to differentiate native and introduced taxa can lead to erroneous conclusions about the effects of ant invasions. Our results caution against unqualified assertions about the effects of ant invasions on non-ant arthropods, and more generally demonstrate that accurate assessments of invasion impacts depend on adequate information about species identity.
Data from: Soil arthropod communities associated with Berberis thunbergii invasion in a temperate deciduous forest harbor more detritivores
<ol> <li><span>Barberry (<em>Berberis</em> <em>thunbergii</em>) is a widely established invasive shrub in temperate forests of the northeastern U.S. with the potential to alter soil arthropod communities through changes to soil nutrient cycling and acidity.</span></li> <li><span>We compared soil arthropod taxa and functional feeding groups between invaded and nearby control areas in a paired observational survey.</span></li> <li><span>Community ordination analysis suggested minimal differences between barberry and control samples. In contrast, pairwise differences revealed elevated densities of multiple taxa in barberry-invaded soils. </span></li> <li><span>Among taxa that were able to be defined by functional feeding group and were collected at higher densities under barberry, all were detritivores. For example, barberry-invaded soils harbored an average of 40% more Isopoda and more than twice as many Diplopoda per unit dry compared to control samples. Differences we observed between barberry and control samples despite the limited study spatiotemporal scope demonstrate the potential for invasions to restructure soil arthropod communities.</span></li> <li><span>Observed patterns potentially reflect elevated leaf litter decomposition rates associated with the invasion; results also highlight the need to integrate site-specific environmental attributes when assessing the impact of invading plants on soil ecosystems.</span></li> </ol>
Data from: Soil arthropod communities associated with Berberis thunbergii invasion in a temperate deciduous forest harbor more detritivores
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Data from: Testing the effects of ant invasions on non-ant arthropods with high-resolution taxonomic data
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