Find research datasets worth reusing

opencc-zeroDec 2020View details →

Supplementary material 1 from: Bustamante RO, Alves L, Goncalves E, Duarte M, Herrera I (2020) A classification system for predicting invasiveness using climatic niche traits and global distribution models: application to alien plant species in Chile. NeoBiota 63: 127-146. https://doi.org/10.3897/neobiota.63.50049

Table S1. Exotic species located in Quadrant 1 (see Figure 3) and impacts on biodiversity, agriculture and cattle raisng

opencc-zeroJan 2021View details →

Field-based ecological studies to assess prospective biological control agents for invasive alien plants: an example from giant rat's tail grass

1. Biological control (biocontrol) of invasive alien plants is a widely utilised weed management tool. Prospective biocontrol agents are typically assessed through host-specificity testing and pre-release efficacy studies performed in quarantine. However, rearing of the potential biocontrol agents and/or test plants is often difficult or impossible under quarantine conditions. Moreover, practitioners may attain laboratory-artefacts in quarantine, which may result in the potential agent being needlessly rejected. Field-based studies in the weed's indigenous distribution could overcome these issues. 2. Sporobolus pyramidalis and Sporobolus natalensis (giant rat's tail grass; Poaceae) are indigenous in Africa but have become problematic invasive alien plants in Australia. A previous biocontrol programme was terminated because the candidate agent could not be reared and tested in quarantine. We performed field-based host-specificity and efficacy studies for prospective biocontrol agents in South Africa (indigenous distribution). Forty-seven non-target grass species were sampled during host-specificity assessments. Candidate agent efficacy was estimated based on damage to the target weeds, for each host-specific candidate individually and in combination with other host-specific candidates. 3. Three species of endophagous wasps were deemed host-specific. Efficacy assessments identified an undescribed stem-boring wasp (Tetramesa sp.) species as the most damaging candidate. A second Tetramesa species was much less damaging alone but had a cumulative impact on the plant in combination with the more damaging Tetramesa species. Both Tetramesa species are recommended for importation into quarantine in Australia for confirmatory host-specificity testing with a significantly reduced test plant list. 4. Synthesis and applications: Similar field-based assessments in the indigenous distribution of weeds targeted for biocontrol could be included in future programmes. Where rearing of potential agents and/or test plants is difficult or impossible under quarantine conditions, our field-based method provides an alternative. Where quarantine-based testing is feasible, this method ensures that only candidates that have passed an ecologically realistic host-specificity and potential efficacy screening are imported into quarantine. This may reduce the number of agents that are imported and the length of time each agent is kept in quarantine. This is advantageous because quarantine space is highly valuable and is usually a limiting factor in pre-release assessments of biocontrol agents.

opencc-zeroDec 2016View details →

Data from: The effects of climate warming and disturbance on the colonization potential of ornamental alien plant species

1. A large number of alien plant species have been introduced as ornamental garden plants to Europe, but relatively few have become invasive. Low climatic suitability may be limiting the current invasion potential of many alien ornamental species. However, with ongoing disturbance and climate change, this barrier may be reduced for some species. 2. Here we tested how colonization ability (a prerequisite for invasion) of frequently planted alien ornamentals depends on disturbance and heating, and on their species characteristics. We sowed seeds of 37 non-naturalized alien herbaceous garden-plant species into native grassland plots with and without disturbance, and with and without infrared heating lamps. To assess whether their responses differ from those within the regional wild flora, we also sowed 14 native species and 12 naturalized alien species. During two years, we assessed the likelihoods of germination, first-year survival, second-year survival and flowering of these 63 study species. 3. The heating treatment, which also reduced soil moisture, decreased all measures of colonization success, but more so for sown native species than for the non-naturalized and naturalized alien ones. The disturbance treatment increased colonization success, and because heating decreased productivity of the undisturbed grassland plots, it also increased invasibility of these plots. Average colonization success of non-naturalized aliens was reduced by heating, but some species were not affected or performed even better with heating, particularly those with an annual life span and a high seed mass. Winter hardiness improved colonization ability of non-naturalized aliens, but this advantage was reduced in the heated plots. 4. Synthesis. Disturbance increased and heating decreased the absolute colonization success of most of the 63 species sown. However, heating had stronger adverse effects on the resident grassland and sown native species than either type of sown alien species. Together, these results suggest that some alien plants may have greater colonization success relative to native plants under a warmer climate.

opencc-zeroDec 2013View details →

Data from: Plant neighbours rather than soil biota determine impact of an alien plant invader

1. Various factors have been shown contributing to the ecosystem impact of invasive alien plants, but their relative importance remains unclear. We focused on the effects of neighbouring plant community and soil biota as these biotic factors have been repeatedly put forward to explain invasion success (e.g. as components of the novel weapons and of the biotic release hypothesis). 2. To assess their relative importance in explaining the high impact of Centaurea stoebe during the invasion of new sites in the introduced range, we conducted a greenhouse experiment with both European (EU) and North American (NA) tetraploid C. stoebe competing with/without EU vs. NA neighbouring community and with the two neighbouring communities growing without C. stoebe. Plants were grown in sterilized commercial soil inoculated with naïve soil (from rhizosphere of plants other than C. stoebe) originating either from the home EU or the introduced NA range and half of which was sterilized to remove soil biota. 3. In the competition pots, relative competitive ability (difference between the relative growth rates of C. stoebe and neighbouring community) and impact level (biomass of the neighbouring community relative to that in non-competition pots) of C. stoebe was significantly higher when grown with the NA than with the EU neighbouring community, although growth rates of EU and NA neighbouring communities did not differ in the non-competition pots. Both soil origin and C. stoebe origin had no effect on these processes. Soil sterilization increased growth of both C. stoebe and neighbouring communities, but had only a moderate effect on impact level and type, and no effect on the relative competitive ability of C. stoebe. 4. These results suggest that during the colonization of new sites in North American grasslands, the impact of C. stoebe is strongly driven by reduced competitive ability of NA neighbours compared with EU neighbours, while altered biotic soil conditions in the introduced range and post-introduction evolutionary changes in the invader are of less importance. This differential impact appears to be due to inherently different mechanisms underlying the competitive interactions between EU and NA neighbouring communities when grown with C. stoebe.

opencc-zeroDec 2015View details →

Data from: Introduction bias affects relationships between the characteristics of ornamental alien plants and their naturalization success

Aim: Alien plants with certain characteristics may have been introduced earlier and more frequently than others. Such introduction bias may cause spurious associations between plant characteristics and naturalization (the establishment of self-sustaining populations in the wild). We aimed to disentangle direct and indirect (i.e. mediated by introduction history) effects of species characteristics on the naturalization success of alien plants introduced for horticulture. Location: Germany (non-native range); rest of the world (native range). Methods: We compiled a dataset of 435 alien plant species introduced in cultivation in Germany, including data on their year of introduction, the number of botanical gardens where they are planted, native range, biological traits and naturalization success. We used path analysis to estimate the direct effects of geographical origin and biological traits on naturalization, and their indirect effects mediated by year and/or frequency of introduction. Results: We found significant direct positive effects of native range size and winter hardiness on naturalization. Alien species native to other parts of Europe and species with a large native range were brought to the country earlier than other species. In addition, woody species, winter-hardy species and tall species were planted more frequently than others. Because the number of botanical gardens where a species is planted increased naturalization success directly, and residence time did so indirectly through a significant positive association with the number of botanical gardens, most of the species characteristics had indirect effects on naturalization. Main conclusions: Our approach allowed us to show that apparent effects of species characteristics on naturalization success can be at least partly indirect, due to introduction biases. This indicates that failure to recognize such introduction biases could impair our ability to explain the success of alien plant species.

opencc-zeroOct 2023View details →

Supplementary material 1 from: Gioria M, Carta A, Balogianni V, Fornara D, Pyšek P, Osborne BA (2023) Changes in the functional and phylogenetic diversity of above- and below-ground plant communities invaded by two alien herbs. NeoBiota 88: 75-101. https://doi.org/10.3897/neobiota.88.109185

Species lists, list of traits, and results of Bayesian phylogenetic generalized linear mixed models of species richness and abundance data in the vegetation and the soil seed bank

opencc-by-4.0Oct 2021View details →

The success of alien plants in an arid ecosystem: Structural equation modeling reveals hidden effects of soil resources

data

opencc-zeroJan 2022View details →

Prioritizing terrestrial invasive alien plant species for management in urban ecosystems

1. Invasive alien plant species (IAPs) in urban areas can have detrimental effects on biodiversity, ecosystem services and human well-being. Urban areas are complex social management mosaics with high land-use diversity, complex land tenure patterns, and many different stakeholder groups, some of which derive benefits from invading species. Urban conservation practitioners face complex decisions about which IAPs require management. Yet most IAPs prioritization frameworks have been designed for and implemented in natural or rural areas and are generally inadequate for guiding effective and sustainable interventions in urbanized areas. 2. We modified an existing prioritization scheme to develop a framework for prioritizing terrestrial IAPs in urban areas which applies evidence-based (data-driven) and stakeholder-based (local knowledge) assessments to score and rank alien plant species in terms of their priority for management using an objective set of criteria. 3. The framework consists of forty-six criteria, grouped into eight modules which assess invasion status, habitat requirements, biological characteristics, dispersal ability, distribution, impact (positive and negative), and potential for control for each alien plant species under consideration. 4. We use the city of Toronto, Canada as a case study to test our framework – a list of 50 IAPs were effectively scored and ranked in order of high to low priority for control. Species with the highest total prioritization scores were Vincetoxicum rossicum (Dog Strangling Vine), Convolvulus arvensis (Field Bindweed) and Taraxacum officinale (Common Dandelion) (ranked 1, 2 and 3, respectively). 5. Many of the identified high priority species align with the those previously flagged as of management concern by conservation practitioners, but also include those that are not actively managed due to their perceived lower ecological impacts. These species still require high resource investment for other objectives such as aesthetics. This highlights the complexity of alien plant species management in urban areas. 6. Synthesis and applications. Prioritizing invasive alien plants for management in urban areas is particularly challenging due to often conflicting ecological, economic, and social objectives. We use available evidence and local stakeholder knowledge to develop an objective and systematic prioritization tool which can assist conservation practitioners in selecting priority species for management action in complex urban landscapes.

opencc-zeroFeb 2022View details →

Data from: Herbivory may mediate the effects of nutrients on the dominance of alien plants

1. Numerous studies have highlighted the role of nutrient availability and fluctuations therein for invasion success of alien plants. Others also highlighted the role of herbivores in invasion success. However, how herbivory and the level and fluctuations in nutrient availability interact in driving alien plant invasion into native communities remains largely unexplored. 2. We grew eight invasive alien species as target species in pot-mesocosms with five different synthetic native communities in a three-factorial design with two levels of nutrient availability (low vs high), two levels of nutrient fluctuation (constant vs pulsed) and two levels of herbivory (with vs without). 3. The relative biomass production of the alien target plants decreased in response to an increase in nutrient availability, and increased in response to the presence of herbivores. Furthermore, herbivory could interact with changes in nutrient availability and nutrient fluctuations to affect the dominance of the alien target species (a marginally significant interaction; 90% CIs: [0.005, 0.176]). 4. Synthesis: Our multispecies experiment indicates that herbivory could mediate the interactive effect of nutrient enrichment and variability in nutrient supply on invasion of alien plants into native communities. Therefore, we recommend that studies testing the fluctuating resources hypothesis should also consider interactive effect of other trophic levels.

opencc-zeroMay 2022View details →

The adaptive capacity of alien and endangered plants in China

The datasets used in the article includes of "Endangered plants.csv" and "Alien plants.csv". The dataset of "Endangered plants" contains data from the list of the National Key Protected Wild Plants (the first and second batches) officially approved by the State Council, 1898 plants were recorded in the information system of the Chinese Rare and Endangered Plants. The dataset of "Alien plants" contains data from The Checklist of the Chinese Invasive Plants and 562 alien plants were recorded. Diaspore morphological traits were collected from database of the Flora of China (<a href="http://www.iplant.cn/foc/">http://www.iplant.cn/foc/</a>). Diaspore Information Database from Royal Botanic Gardens (<a href="http://data.kew.org/sid/">http://data.kew.org/sid/</a>), and the PLANTS Database of the United States (https://plants.usda.gov/java/). Each dataset includes 29 columns: ID, Species, Family, Dispersal strategy, The number of dispersal strategies of a plant, Reproductive mode, The number of reproductive modes of a plant, Life form, Habitat type, The number of habitats of a plant, Distribution scale, Score 1-16, Adaptive capacity to stressful environments, and Adaptive capacity to disturbed environments. Dispersal strategy includes: autochory (barochory, ballistic dispersal, and blastochory); anemochory (macrogeochory, meteor-anemochory, trichometeorochory, and pterometeorochory); hydrochory (bythisochory, zoohydrochory, and nautohydrochory); zoochory (endozoochory, epizoochory, frugivory, graminivory, granivory, and myrmecochory); and anthropochory (agochory, ethelochory, speirochory, and anthropochory). The number of dispersal strategies of a plant includes: one or two modes, three modes, four modes, and more than four modes. The reproductive mode includes: 1) spores or seeds; 2) ramets; 3) cutting, layering, or grafting; 4) rhizome; and 5) budding. The number of reproductive modes of a plant includes: one mode, two modes, three modes, and more than three modes. Life form includes: annual and biennial, perennial, vine, shrub, and arbor. Habitat type includes: 1) deserts or desert steppes; 2) steppes or dry hillsides; 3) waysides, near villages or wastelands; 4) farm lands; 5) meadow steppes or grasslands; 6) exposed rocks and crevices or tree tops; 7) forest edges, shrublands, or jungles; 8) rivers, lake banks, or benches; 9) marshes, wet meadows, or paddy fields and 10) in water. The number of plant habitats includes: one type, two types, three types, and more than three types. Distribution scale county scale (< 5 × 104 km2), municipal scale (5–35 × 104 km2), provincial scale or autonomous regions (35–150 × 104 km2), and national scale (>150 × 104 km2). Score 1-16 are scores of in corresponding indicator assessed in stressful and disturbed environment, respectively. Adaptive capacity to stressful and disturbed environments are total scores of plants assessed to stressful and disturbed environments.

opencc-zeroAug 2022View details →

Supplementary material 2 from: Sirbu C, Miu IV, Gavrilidis AA, Gradinaru SR, Niculae IM, Preda C, Oprea A, Urziceanu M, Camen-Comanescu P, Nagoda E, Sirbu IM, Memedemin D, Anastasiu P (2022) Distribution and pathways of introduction of invasive alien plant species in Romania. NeoBiota 75: 1-21. https://doi.org/10.3897/neobiota.75.84684

Appendix S2. Altitudinal range of invasive and potentially invasive alien plant species recorded in Romania

opencc-zeroSep 2022View details →

Assessing the effects of native and alien plant ash on mosquito abundance

Plant invasions have been linked to displacement of native vegetation and altering of fire regimes and might influence vector mosquito populations by altering habitats or nutrient inputs. Whereas wildfire effects on terrestrial ecosystems are relatively well-studied, ash depositions into aquatic ecosystems and effects on semi-aquatic taxa such as mosquitoes have remained overlooked. Here, we investigated mosquito colonization in water treated with ash from native plants [quinine tree (Rauvolfia caffra), Transvaal milk plum (Englerophytum magalismontanum), apple leaf (Philenoptera violacea)] and invasive alien plants [i.e., lantana (Lantana camara), guava (Psidium guajava), red river gum (Eucalyptus camaldulensis)] in containers at two ash concentrations (i.e., 1 g L-1, 2 g L-1). Overall, there was no statistically clear difference in colonization between ash from native and alien species. We recorded colonization by two mosquito genera (Culex spp. and Anopheles spp.), with Culex generally much more abundant than Anopheles. Few differences were identified among the plants, with statistically clear effects of ash type and concentration on larval and pupal stages. High Culex egg and larval abundances were shown in lantana and apple leaf treatments compared to controls, and milkplum versus controls for pupae of both genera. Further research is required to elucidate the influence of nutrient inputs from different ash species on vector mosquito population dynamics.

opencc-by-4.0Jan 2019View details →

Alien plants and flower visitors disrupt the seasonal dynamics of mutualistic networks - Dataset

Dataset associated with the manuscript "Alien plants and flower visitors disrupt the seasonal dynamics of mutualistic networks" (Arroyo-Correa et al. 2019)

Supplementary material 4 from: Schiffleithner V, Essl F (2016) Is it worth the effort? Spread and management success of invasive alien plant species in a Central European National Park. NeoBiota 31: 43-61. https://doi.org/10.3897/neobiota.31.8071

Table S2. Percentage and numbers of populations of the three study species : Explanation note: Percentage and numbers of populations of the three study species in the five size classes (1 = 0–10m², 2 = 10–100m², 3 = 100–1,000m², 4 = 1,000–10,000m², 5 = >10,000m²) in the National Park Thayatal-Podyjí in 2010. Density classes (according to Braun-Blanquet 1964) are provided for Fallopia × bohemica and Impatiens glandulifera.

Supplementary material 3 from: Schiffleithner V, Essl F (2016) Is it worth the effort? Spread and management success of invasive alien plant species in a Central European National Park. NeoBiota 31: 43-61. https://doi.org/10.3897/neobiota.31.8071

Table S1. Populations of Fallopia × bohemica, Impatiens glandulifera and Robinia pseudoacacia in the Austrian part of the National Park Thayatal-Podyjí : Explanation note: Populations of Fallopia × bohemica, Impatiens glandulifera and Robinia pseudoacacia in the Austrian part of the National Park Thayatal-Podyjí, indicating population size, changes in population size between both surveys, and if management was applied.

Supplementary material 1 from: Schiffleithner V, Essl F (2016) Is it worth the effort? Spread and management success of invasive alien plant species in a Central European National Park. NeoBiota 31: 43-61. https://doi.org/10.3897/neobiota.31.8071

Figure S1. Distribution of the three study species (Fallopia × bohemica, Impatiens glandulifera, Robinia pseudoacacia) in the National Park Thayatal-Podyjí in 2010 : Explanation note: Robinia pseudoacacia predominantly invades forests near settlements, Impatiens glandulifera the Thaya river valley, and Fallopia × bohemica occurs mostly near settlements close to streams.

Supplementary material 2 from: Schiffleithner V, Essl F (2016) Is it worth the effort? Spread and management success of invasive alien plant species in a Central European National Park. NeoBiota 31: 43-61. https://doi.org/10.3897/neobiota.31.8071

Figure S2. Distribution of the three study species, Fallopia × bohemica, Impatiens glandulifera, and Robinia pseudoacacia in the Austrian part of the National Park Thayatal-Podyjí in 2001 :

opencc-by-4.0Jun 2016View details →

Supplementary material 1 from: Brundu G, Richardson DM (2016) Planted forests and invasive alien trees in Europe: A Code for managing existing and future plantings to mitigate the risk of negative impacts from invasions. In: Daehler CC, van Kleunen M, Pyšek P, Richardson DM (Eds) Proceedings of 13th International EMAPi conference, Waikoloa, Hawaii. NeoBiota 30: 5–47. https://doi.org/10.3897/neobiota.30.7015

Supplementary tables : Explanation note: Table 1. Examples of specific plantation practices aimed at reducing problems with invasive alien tree species. Some of these rules can be considered of general utility, whereas others refer to specific alien tree species and aim to mitigate specific impacts. Table 2. The fifty alien trees most frequently listed (with different rankings) in European countries

opencc-by-4.0Jan 2015View details →

Supplementary material 3 from: Zimmermann H, Loos J, von Wehrden H, Fischer J (2015) Aliens in Transylvania: risk maps of invasive alien plant species in Central Romania. NeoBiota 24: 55-65. https://doi.org/10.3897/neobiota.24.7772

Risk maps for all eight study species.: Explanation note: Risk maps for all eight study species derived from the MAXENT model.