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298 results for “invasion biology”
Fig. 5 in New data on distribution and biology of the invasive species Hydrotaea aenescens (Wiedemann, 1830) (Diptera, Muscidae)
Fig. 5. Copulating pair of H. aenescens
How biological invasions affect animal behaviour: a global, cross-taxonomic analysis
<p>1. In the Anthropocene, species are faced with drastic challenges due to rapid, human-induced changes, such as habitat destruction, pollution and biological invasions. In the case of invasions, native species may change their behaviour to minimise the impacts they sustain from invasive species, and invaders may also adapt to the conditions in their new environment in order to survive and establish self-sustaining populations. 2. We aimed at giving an overview of which changes in behaviour are studied in invasions, and what is known about the types of behaviour that change, the underlying mechanisms and the speed of behavioural changes. 3. Based on a review of the literature, we identified 191 studies and 360 records (some studies reported multiple records) documenting behavioural changes caused by biological invasions in native (236 records from 148 species) or invasive (124 records from 50 species) animal species. This global dataset, which we make openly available, is not restricted to particular taxonomic groups. 4. We found a mild taxonomic bias in the literature towards mammals, birds and insects. In line with the enemy release hypothesis, native species changed their anti-predator behaviour more frequently than invasive species. Rates of behavioural change were evenly distributed across taxa, but not across types of behaviour. 5. Our findings may help to better understand the role of behaviour in biological invasions as well as temporal changes in both population densities and traits of invasive species, and of native species affected by them.</p>
Appendix 4 to "The Status of Biological Invasions and their Management in South Africa in 2019"—Species list change tracker
<p>For more details see: http://iasreport.sanbi.org.za</p> <p>SANBI and CIB 2020. Appendix 4 to "The Status of Biological Invasions and their Management in South Africa in 2019"—Species list change tracker. South African National Biodiversity Institute, Kirstenbosch and DSI-NRF Centre of Excellence for Invasion Biology, Stellenbosch. http://dx.doi.org/10.5281/zenodo.3947778</p>
Appendix 5 to "The Status of Biological Invasions and their Management in South Africa in 2019"—Pathways change tracker
<p>For more details see: http://iasreport.sanbi.org.za</p> <p>SANBI and CIB 2020. Appendix 5 to "The Status of Biological Invasions and their Management in South Africa in 2019"—Pathways change tracker. South African National Biodiversity Institute, Kirstenbosch and DSI-NRF Centre of Excellence for Invasion Biology, Stellenbosch. http://dx.doi.org/10.5281/zenodo.3947799</p>
Appendix 1 to "The Status of Biological Invasions and their Management in South Africa in 2022"—Species level pathway data
<p>SANBI and CIB 2023. Appendix 1 to "The Status of Biological Invasions and their Management in South Africa in 2022"—Species level pathway data. South African National Biodiversity Institute, Kirstenbosch and DSI-NRF Centre of Excellence for Invasion Biology, Stellenbosch. http://dx.doi.org/10.5281/zenodo.8217192</p> <p>For more details see: http://iasreport.sanbi.org.za</p> <p>For the report itself see: http://dx.doi.org/10.5281/zenodo.8217182</p>
Appendix 7 to "The Status of Biological Invasions and their Management in South Africa in 2022"—The Species List for the Prince Edward Islands
<p>SANBI and CIB 2023. Appendix 7 to "The Status of Biological Invasions and their Management in South Africa in 2022"—The Species List for the Prince Edward Islands. South African National Biodiversity Institute, Kirstenbosch and DSI-NRF Centre of Excellence for Invasion Biology, Stellenbosch. http://dx.doi.org/10.5281/zenodo.8217229</p> <p> </p> <p>For more details see: http://iasreport.sanbi.org.za<br> For the report itself see: http://dx.doi.org/10.5281/zenodo.8217182</p>
Figure 3 in Aculus taihangensis (Acari: Prostigmata: Eriophyidae), a potential biological control agent identified from the highly invasive pest plant, tree of heaven, in Türkiye
Figure 3. Aculus taihangensis – Deutogyne: A. Coxigenital region, B. Internal genitalia.
Data for: Exposure and sensitivity of terrestrial vertebrates to biological invasions worldwide
<div> <p><em><strong>All details on the dataset are provided in the README. Details on the methods are in the Supplementary Material of the associated paper.</strong></em></p> <p>This dataset is the product of data complilation for the article <strong>Exposure and sensitivity of terrestrial vertebrates to biological invasions worldwide</strong>. It comprises, at a global scale for 110km grid cells:</p> <ul> <li>the exposure to the threat of biological invasions for 304 invasive alien species (3 exposure metrics with 3 alternative normalization methods)</li> <li>the sensitivity of birds, mammals, and reptiles to this threat (1 sensitivity metric with 3 alternative normalization methods)</li> <li>the data completeness associated with exposure and sensitivity, calculated with 2 components for each metric</li> </ul> <p>All the column details are provided in the "Metadata" sheet of each excel file. We also provide the shapefile of land cell units to allow for a full reproduction of the analyses and the maps.</p> <p>Additionally, we provide the sources to access the raw data used to derive the metrics for invasive alien species. </p> </div>
Data for: (Epi)genomic adaptation driven by fine geographical scale environmental heterogeneity after recent biological invasions
<p><span>Elucidating processes and mechanisms involved in rapid local adaptation to varied environments is a poorly understood but crucial component in management of invasive species. Recent studies have proposed that genetic and epigenetic variation could both contribute to ecological adaptation, yet it remains unclear on the interplay between these two components underpinning rapid adaptation in wild animal populations. To assess their respective contributions to local adaptation, we explored epigenomic and genomic responses to environmental heterogeneity in eight recently colonized ascidian (<em>Ciona intestinalis</em>) populations at a relatively fine geographical scale. Based on MethylRADseq data, we detected strong patterns of local environment-driven DNA methylation divergence among populations, significant epigenetic isolation by environment (IBE), and a large number of local environment-associated epigenetic loci. Meanwhile, multiple genetic analyses based on single nucleotide polymorphisms (SNPs) showed genomic footprints of </span><span>divergent selection</span><span>. </span><span>In addition, for five genetically similar populations, we detected significant methylation divergence and local environment-driven methylation patterns, indicating strong effects of local environments on epigenetic variation. From a functional perspective, a majority of functional genes, gene ontology (GO) terms, and biological pathways were largely specific to one of these two types of variation, suggesting partial independence between epigenetic and genetic adaptation. The methylation quantitative trait loci (mQTL) analysis showed that the genetic variation explained only 18.67% of methylation variation, further confirming the autonomous relationship between these two types of variation. Altogether, we highlight the complementary interplay of genetic and epigenetic variation involved in local adaptation, which may jointly promote populations' rapid adaptive capacity and successful invasions in different environments. The findings here provide valuable insights into interactions between invaders and local environments to allow invasive species to rapidly spread, thus contributing to better prediction of invasion success and development of management strategies.</span></p>
Fig. 3 in Biology and food habits of the invasive snail Allopeas gracile (Gastropoda: Subulinidae)
Fig. 3. Allopeas gracile feeding on ripe strawberry fruit. Photo by L. Buss, University of Florida.
Data from: Potential limits to the benefits of admixture during biological invasion
Species introductions often bring together genetically divergent source populations, resulting in genetic admixture. This geographic reshuffling of diversity has the potential to generate favorable new genetic combinations, facilitating the establishment and invasive spread of introduced populations. Observational support for the superior performance of admixed introductions has been mixed, however, and the broad importance of admixture to invasion questioned. Under most underlying mechanisms, admixture's benefits should be expected to increase with greater divergence among and lower genetic diversity within source populations, though these effects have not been quantified in invaders. We experimentally crossed source populations differing in divergence in the invasive plant Centaurea solstitialis. Crosses resulted in many positive (heterotic) interactions, but fitness benefits declined and were ultimately negative at high source divergence, with patterns suggesting cyto-nuclear epistasis. We explored the literature to assess whether such negative epistatic interactions might be impeding admixture at high source population divergence. Admixed introductions reported for plants came from sources with a wide range of genetic variation, but were disproportionately absent where there was high genetic divergence among native populations. We conclude that while admixture is common in species introductions and often happens under conditions expected to be beneficial to invaders, these conditions may be constrained by predictable negative genetic interactions, potentially explaining conflicting evidence for admixture's benefits to invasion.
Additional climate information for research paper «Ecological and Geographical Analysis of Distribution of Heracleum persicum, H. mantegazzianum and H. sosnowskyi on The Northern Limit of Its Invaded Range in Europe» submitted to Russian Journal of Biological Invasions
<p><strong>Additional climate information for research paper «Ecological and Geographical Analysis of Distribution of Heracleum persicum, H. mantegazzianum and H. sosnowskyi on The Northern Limit of Its Invaded Range in Europe» submitted to Russian Journal of Biological Invasions </strong></p>
Data from: Chemical novelty facilitates herbivore resistance and biological invasions in some introduced plant species
Ecological release from herbivory due to chemical novelty is commonly predicted to facilitate biological invasions by plants, but has not been tested on a community scale. We used metabolomics based on mass spectrometry molecular networks to assess the novelty of foliar secondary chemistry of 15 invasive plant species compared to 46 native species at a site in eastern North America. Locally, invasive species were more chemically distinctive than natives. Among the 15 invasive species, the more chemically distinct were less preferred by insect herbivores and less browsed by deer. Finally, an assessment of invasion frequency in 2,505 forest plots in the Atlantic coastal plain revealed that, regionally, invasive species that were less preferred by insect herbivores, less browsed by white-tailed deer, and chemically distinct relative to the native plant community occurred more frequently in survey plots. Our results suggest that chemically-mediated release from herbivores contributes to many successful invasions.
Figure 3 Alhagi maurorum, plant with typical Aceria alhagi n in A new Aceria species (Acari:Trombidiformes: Eriophyoidea) from West Asia, a potential biological control agent for the invasive weed camelthorn, Alhagi maurorum Medik. (Leguminosae)
Figure 3 Alhagi maurorum, plant with typical Aceria alhagi n. sp. symptoms where the shoot tips
Changes in selection pressure can facilitate hybridization during biological invasion in a Cuban lizard
<p>Hybridization is among the evolutionary mechanisms most frequently hypothesized to drive the success of invasive species, in part because hybrids are common in invasive populations. One explanation for this pattern is that biological invasions coincide with a change in selection pressures that limit hybridization in the native range. To investigate this possibility, we studied the introduction of the brown anole (<i>Anolis sagrei</i>) in the southeastern United States. We find that native populations are highly genetically structured. In contrast, all invasive populations show evidence of hybridization among native-range lineages. Temporal sampling in the invasive range spanning 15 years showed that invasive genetic structure has stabilized, indicating that large-scale contemporary gene flow is limited among invasive populations and that hybrid ancestry is maintained. Additionally, our results are consistent with hybrid persistence in invasive populations resulting from changes in natural selection that occurred during invasion. Specifically, we identify a large-effect X chromosome locus associated with variation in limb length, a well-known adaptive trait in anoles, and show that this locus is often under selection in the native range, but rarely so in the invasive range. Moreover, we find that the effect size of alleles at this locus on limb length is much reduced in hybrids among divergent lineages, consistent with epistatic interactions. Thus, in the native range, epistasis manifested in hybrids can strengthen extrinsic post-mating isolation. Together, our findings show how a change in natural selection can contribute to an increase in hybridization in invasive populations.</p>
Island area and remoteness shape plant and soil bacterial diversity through land use and biological invasion
<p>Biodiversity is declining dramatically due to human-driven land use change and biological invasion, but our knowledge of how such drivers influence plant and heterotroph diversity on island ecosystems remains limited. Historically island biogeography theory has focused solely on the direct effects of island size and remoteness on biodiversity, but these factors can also indirectly affect species gain and/or loss by impacting land use change and biological invasion. We built the structural equation model to explore the direct effects of island size and remoteness, and indirect effects of these factors via land use intensity and pinewood nematode invasion, on the diversity of plants and soil bacteria across 37 continental shelf islands in the largest land-bridge archipelago in eastern China.</p> <p>As expected we found that increasing island area directly promoted plant diversity. However, land use intensity increased with island area which also promoted plant diversity, and loss of pine forest by the pinewood nematode invasion increased with island remoteness which reduced plant diversity. Island remoteness only indirectly reduced plant diversity through increasing pine forest loss. Soil bacterial diversity was directly negatively impacted by island remoteness, and indirectly negatively impacted by island remoteness through increased soil electrical conductivity likely caused by greater salinity from sea spray. Furthermore, soil bacterial diversity was indirectly promoted by island area through increased plant diversity and decreased soil electrical conductivity, and indirectly reduced by pine forest loss through decreased plant diversity. Our findings highlight that island biogeography theory has relevance to understanding human impacts in the Anthropocene, and that there is a need to more explicitly recognize how island size and remoteness affect biodiversity not only directly, but also indirectly via their effects on human-induced drivers of biodiversity, such as land use change and biological invasion.</p>
Sequencing data for: Tracking climate-change induced biological invasions over 4 decades by metabarcoding archived natural eDNA samplers
<p><span>In a time of unprecedented global environmental change, understanding the response of biodiversity is paramount. However, our knowledge of anthropogenic impacts on ecosystems is limited by a lack of standardized retrospective biomonitoring data. Here, we use four-decade time series of archived blue mussels to trace spatiotemporal biodiversity change in coastal ecosystems. The filter-feeding mussels can serve as natural eDNA samplers, carrying an imprint of the surrounding aquatic community at the time of sampling. By sequencing the preserved DNA, we characterize highly diverse mussel-associated communities and reconstruct the invasion trajectory of an invasive species to the detriment of native taxa uncovering repeated population collapses and reinvasions after cold winters. Time series of natural eDNA samplers provide highly resolved temporal data on community assembly and global warming-driven invasion processes and overcome critical shortfalls in our understanding of biodiversity change in the Anthropocene.</span></p>
Shifting the focus from species to individuals in invasion biology: Individual differences in jumping behaviour
<p>Dataset associated with 'Shifting the focus from species to individuals in invasion biology: Individual differences in jumping behaviour' manuscript.</p>
FIGURE 7 Girardia tigrina from Liguria. A in The invasive alien freshwater FLatworm Girardia tigrina (Girard, 1850) (Platyhelminthes, Tricladida) in Western Europe: new insights into its morphology, karyology and reproductive biology
FIGURE 7 Girardia tigrina from Liguria. A. Metaphasic plate; B. Karyogram.
Evaluation of Effectiveness of GSK Biologicals' Pneumococcal Conjugate Vaccine 1024850A Against Invasive Disease
ClinicalTrials.gov study NCT00861380. IPD Sharing: YES. Countries: 1. Publications: 9.
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