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opencc-zeroDec 2014View details →

Data from: Colonization history, host distribution, anthropogenic influence and landscape features shape populations of white pine blister rust, an invasive alien tree pathogen

White pine blister rust is caused by the fungal pathogen Cronartium ribicola J.C. Fisch (Basidiomycota, Pucciniales). This invasive alien pathogen was introduced into North America at the beginning of the 20th century on pine seedlings imported from Europe and has caused serious economic and ecological impacts. In this study, we applied a population and landscape genetics approach to understand the patterns of introduction and colonization as well as population structure and migration of C. ribicola. We characterized 1,292 samples of C. ribicola from 66 geographic locations in North America using single nucleotide polymorphisms (SNPs) and evaluated the effect of landscape features, host distribution, and colonization history on the structure of these pathogen populations. We identified eastern and western genetic populations in North America that are strongly differentiated. Genetic diversity is two to five times higher in eastern populations than in western ones, which can be explained by the repeated accidental introductions of the pathogen into northeastern North America compared with a single documented introduction into western North America. These distinct genetic populations are maintained by a barrier to gene flow that corresponds to a region where host connectivity is interrupted. Furthermore, additional cryptic spatial differentiation was identified in western populations. This differentiation corresponds to landscape features, such as mountain ranges, and also to host connectivity. We also detected genetic differentiation between the pathogen populations in natural stands and plantations, an indication that anthropogenic movement of this pathogen still takes place. These results highlight the importance of monitoring this invasive alien tree pathogen to prevent admixture of eastern and western populations where different pathogen races occur.

opencc-zeroDec 2014View details →

Data from: Reconstructing the invasion history of Heracleum persicum (Apiaceae) into Europe

Sparse, incomplete and inappropriate historical records of invasive species often hamper invasive species management interventions. Population genetic analyses of invaders might provide a suitable context for the identification of their source populations and possible introduction routes. Here, we describe the population genetics of Heracleum persicum Desf. ex Fisch and trace its route of introduction into Europe. Microsatellite markers revealed a significantly higher genetic diversity of H. persicum in its native range, and the loss of diversity in the introduced range may be attributed to a recent genetic bottleneck. Bayesian cluster analysis on regional levels identified three and two genetic clusters in the native and the introduced ranges, respectively. A global structure analysis revealed two worldwide distinct genetic groups: one primarily in Iran and Denmark, the other primarily in Norway. There were also varying degrees of admixture in England, Sweden, Finland and Latvia. Approximate Bayesian computation indicated two independent introductions of H. persicum from Iran to Europe: the first one in Denmark and the second one in England. Finland was subsequently colonized by English populations. In contrast to the contemporary hypothesis of English origin of Norwegian populations, we found Finland to be a more likely source for Norwegian populations, a scenario supported by higher estimated historical migration from Finland to Norway. Genetic diversity per se is not a primary determinant of invasiveness in H. persicum. Our results indicate that, due to either pre-adaptations or rapid local adaptations, introduced populations may have acquired invasiveness after subsequent introductions, once a suitable environment was encountered.

opencc-zeroDec 2015View details →

Data from: Genetic patterns across an invasion's history: a test of change versus stasis for the Eurasian round goby in North America

Biological invasions comprise accidental evolutionary experiments, whose genetic compositions underlie relative success, spread, and persistence in new habitats. However, little is known about whether, or how, their population genetic patterns change temporally and/or spatially across the invasion's history. Theory predicts that most would undergo founder effect, exhibit low genetic divergence across the new range, and gain variation over time via new arriving propagules. To test these predictions, we analyze population genetic diversity and divergence patterns of the Eurasian round goby Neogobius melanostomus across the two decades of its North American invasion in the Laurentian Great Lakes, comparing results from 13 nuclear DNA microsatellite loci and mitochondrial DNA cytochrome b sequences. We test whether "genetic stasis", "genetic replacement", and/or "genetic supplement" scenarios have occurred at the invasion's core and expansion sites, in comparison to its primary native source population in the Dnieper River, Black Sea. Results reveal pronounced genetic divergence across the exotic range, with population areas remaining genetically distinct and statistically consistent across two decades, supporting "genetic stasis" and "founder takes most". The original genotypes continue to predominate, whose high population growth likely outpaced the relative success of later arrivals. The original invasion core has stayed the most similar to the native source. Secondary expansion sites indicate slight allelic composition convergence towards the core population over time, attributable to some early "genetic supplementation". The geographic and temporal coverage of this investigation offers a rare opportunity to discern population dynamics over time and space in context of invasion genetic theory versus reality.

opencc-zeroDec 2017View details →

Data from: Admixture of hybrid swarms of native and introduced lizards in cities is determined by the cityscape structure and invasion history

Introductions of non-native lineages increase opportunities for hybridization. Non-native lineages of the common wall lizard, Podarcis muralis, are frequently introduced in cities where they hybridize with native populations. We aimed at unravelling the invasion history and admixture of native and non-native wall lizards in four German cities using citywide, comprehensive sampling. We barcoded and genotyped 826 lizards and tested if gene flow in populations composed of admixed native and introduced lineages is facilitated by similar environmental factors as in native populations by comparing fine-scale landscape genetic patterns. In cities with non-native lineages, lizards commonly occurred in numerous clusters of hybrid swarms, which showed variable lineage composition, consisting of up to four distinct evolutionary lineages. Hybrid swarms held vast genetic diversity and showed recent admixture with other hybrid swarms. Landscape genetic analyses showed differential effects of cityscape structures across cities, but identified water bodies as strong barriers to gene flow in both native and admixed populations. In contrast, railway tracks facilitated gene flow of admixed populations only. Our study shows that cities represent unique settings for hybridization, caused by multiple introductions of non-native taxa. Cityscape structure and invasion histories of cities will determine future evolutionary pathways at these novel hybrid zones.

opencc-zeroJun 2021View details →

Invasion history shapes host transcriptomic response to a body-snatching parasite

By shuffling biogeographic distributions, biological invasions can both disrupt long-standing associations between hosts and parasites and establish new ones. This creates natural experiments with which to study the ecology and evolution of host-parasite interactions. In estuaries of the Gulf of Mexico, the white-fingered mud crab (Rhithropanopeus harrisii) is infected by a native parasitic barnacle Loxothylacus panopaei (Rhizocephala), which manipulates host physiology and behavior. In the 1960s, L. panopaei was introduced to the Chesapeake Bay and has since expanded along the southeastern Atlantic coast, while host populations in the northeast have so far been spared. We use this system to test the host's transcriptomic response to parasitic infection and investigate how this response varies with the parasite's invasion history, comparing populations representing (1) long-term sympatry between host and parasite, (2) new associations where the parasite has invaded during the last sixty years, and (3) naïve hosts without prior exposure. A comparison of parasitized and control crabs revealed a core response, with widespread downregulation of transcripts involved in immunity and molting. The transcriptional response differed between hosts from the parasite's native range and where it is absent, consistent with previous observations of increased susceptibility in populations lacking exposure to the parasite. Crabs from the parasite's introduced range, where prevalence is highest, displayed the most dissimilar response, possibly reflecting immune priming. These results provide molecular evidence for parasitic manipulation of host phenotype and the role of gene regulation in mediating host-parasite interactions.

FIGURE 40 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURE 40. The occurrence of Phyllonorycter mespilella (red dots) and P. trifasciella (blue dots) in the Canary Islands.

FIGURE 38–39. Archive references. 38 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURE 38–39. Archive references. 38, the citation and the illustration of Tinea mespilella Hübner, 1805 from Hübner, J. 1796–1838. Sammlung europäischer Schmetterlinge. Achte Horde. Tineae Die Schaben; nach der Natur geordnet, beschrieben und vorgestellt: pl. 39, fig. 272. 39a, the title page of the list of specimens bearing Haworth's labels in the Thomas Henry Allis collection. 39b, the list, indicating that the type specimen of P. trifasciella was examined by Mr. Raymond Uffen.

FIGURES 31–33 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURES 31–33. The neotype of Phyllonorycter mespilella. 31, male, Germany, Württemberg, iv.[19]69. Scale bar 1 mm. 32, the collecting and the male genitalia preparation labels of the neotype of Phyllonorycter mespilella. 33, the male genitalia of the neotype of Phyllonorycter mespilella, gen. prep. Triberti 3175♂. Scale bar 200 µm.

FIGURES 34–37. Phyllonorycter trifasciella, adult. 34 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURES 34–37. Phyllonorycter trifasciella, adult. 34, male, Canary Islands, Tenerife, 30.xii.1982. Scale bar 1 mm. 35, male genitalia, gen. prep. De Prins 3806♂. 36, same preparation, aedoeagus. Scale bar 200 µm. 37, the lectotype of Phyllonorycter trifasciella, female, specimen No YORYM 2012.749, in the collection of the Yorkshire Museum and Gardens.

FIGURES 25–30 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURES 25–30. The biotope and leaf mines of Phyllonorycter mespilella on Malus domestica Borkh., Canary Islands, La Palma, 31.x.2007. 25, mine, adaxial view. 26, mine abaxial view. 27, mine of the third instar larva, parenchymal tissue is consumed in spots, adaxial view. 28, pupa protrudes the mine before the emergence of the adult, abaxial view. 29, the biotope of Phyllonorycter mespilella in the Canary Islands, La Palma, 31.x. 2007. 30, Malus domestica Borkh, the host plant of Phyllonorycter mespilella in the Canary Islands, La Palma.

FIGURES 19–24. Phyllonorycter mespilella, pupa. 19 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURES 19–24. Phyllonorycter mespilella, pupa. 19, same as Fig.17, detail 2. Arrows indicate dorsal, latero-dorsal and lateral setae on A2. 20, segments A7–8 with two pairs of setae, lateral view. 21, cremaster, dorsal view. 22, cremaster, lateral view. 23, cremaster, ventral view. 24, cremaster, caudal view. Scale bar as indicated.

FIGURES 13–18. Phyllonorycter mespilella, pupa. 13 in Taxonomic history and invasion biology of two Phyllonorycter leaf miners (Lepidoptera: Gracillariidae) with links to taxonomic and molecular datasets

FIGURES 13–18. Phyllonorycter mespilella, pupa. 13, cocoon cutter, lateral view. 14, pupa, segments A5–10, lateral view. 15, abdominal segments, lateral view. 16, minute spines on caudal segments. 17, overview with mapped details of setation. 18, same, detail 1. Arrows indicate dorsal and latero-dorsal setae on TIII. Scale bar as indicated.

opennotspecifiedDec 2017View details →

FIGURE 2 in The Case of a Rudderfish Highlights the Role of Natural History Museums as Sentinels of Bio-invasions

FIGURE 2. Kyphosus sectatrix (Linnaeus, 1758), specimen captured in 1883 (Doderlein, 1883), stuffed and preserved in the Museum of Zoology of the University of Palermo (voucher code MZPA P-247).

opennotspecifiedDec 2017View details →

FIGURE 1 in The Case of a Rudderfish Highlights the Role of Natural History Museums as Sentinels of Bio-invasions

FIGURE 1. First page of ʺDoderlein, P. (1883) Rinvenimento di una specie di pesce dell'esotico genere Pimelepterus, Lac. nelle acque del Golfo di Palermo. Il Naturalista Siciliano, 3, 81–86.ʺ describing Kyphosus sectatrix, preserved in the Museum of Zoology of the University of Palermo (voucher code MZPA P-247).

opencc-by-4.0Dec 2023View details →

Supplementary materials for the manuscript "Heracleum sosnowskyi or Heracleum mantegazzianum? DNA-based identification of invasive hogweeds (Apiaceae) in two key regions of the species' invasion history in the former USSR.

Supplementary material for the manuscript "Heracleum sosnowskyi or Heracleum mantegazzianum? DNA-based identification of invasive hogweeds (Apiaceae) in two key regions of the species' invasion history in the former USSR".  Shadrin_et_al_Online_Resource_Table_01.xlsx - Plant samples origin and identification. Shadrin_et_al_Online_Resource_Table_02.xlsx - GenBank accession numbers for DNA markers.

opencc-zeroDec 2021View details →

Dispersal and life history of brown widow spiders in dated invasive populations on two continents

Theory and empirical work suggest that behaviours such as dispersal and exploration are predictors of invasive success, and that behaviours may shift predictably after invasive populations have established and spread. However, there are limited data on temporal patterns in the distribution of behavioural traits linked to the timeline of establishment of invasive species. We examine dispersal and exploration, along with life history traits that may be linked to behaviour, across multiple invasive populations of the brown widow spider (Latrodectus geometricus). This global invader has established populations across the United States and Israel. Using this temporal and spatial variation, we tested predictions about changes in suites of traits over establishment time. We compared trait distributions of four U.S. populations of L. geometricus to patterns in four populations in Israel. We predicted that selective filters during the invasion process would result in more dispersive, more exploratory spiders that are larger and more fecund in recently established populations, but, if tradeoffs occur, dispersal would be favoured at the expense of fecundity and size in recent populations. We found more frequent and faster dispersal in more recently established populations in Israel, but not the United States. Spiders in more recently established populations in Israel were larger than those in older populations, but there were no consistent patterns across U.S. populations. However, there was evidence in both the U.S. and Israel for differing tradeoffs among fecundity, dispersal, and size. In more recently-established populations, spiders had lower fecundity than expected based on body size, but were more variable in resource allocation to egg sacs. The results suggest that in some populations, trade-offs underlying dispersal, fecundity, and body size are shaped by the time interval, and thus the number of generations, since establishment, with implications for the role of evolutionary processes in invasion success.

opencc-zeroOct 2022View details →

Data for Land-sea linkages depend on macroalgal species, predator invasion history in a New Zealand archipelago

Seabirds on islands create a circular seabird economy - whereby they feed in the ocean, transport marine-derived nutrients onshore to their breeding colonies, and then seabird-derived nutrients run off into the ocean, enriching nearshore ecosystems. Invasive predators reduce seabird colonies and nutrient subsidies; thus, predator eradication is critical for restoring seabird islands. Few studies have linked nearshore marine recovery to terrestrial ecosystem attributes and none have in temperate zones. Here, we tested the influence of seabird driven soil nutrients, terrestrial abiotic variables, and marine variables on nearshore algal communities using in-depth repeated sampling of four islands in a New Zealand island archipelago. We show seabird land-sea linkages are disrupted when predators invade, and are not restored three decades after invasive predator removal in the studied archipelago. Our study is the first account of how seabird influences on land impact nearshore marine environments on islands cleared of invasive predators in temperate ecosystems. Such information can help provide baseline information for which abiotic and ecological variables are most important when studying the linkages from land to sea in island ecosystems.

opencc-by-4.0May 2014View details →

Supplementary material 1 from: Zach P, Panigaj Ľ, Honěk A, Nedvěd O, Kulfan J, Martinková Z, Selyemová D, Viglášová S, Roy H (2014) The invasion history, distribution and colour pattern forms of the harlequin ladybird beetle Harmonia axyridis (Pall.) (Coleoptera, Coccinellidae) in Slovakia, Central Europe. ZooKeys 412: 89-102. https://doi.org/10.3897/zookeys.412.6587

Records of Harmonia axyridis in Slovakia: Explanation note: There are records from 2008 to 2012; years 2008 and 2009 marked in bold. The localities (sites of collection) are arranged in alphabetical order. Indicated are the numeric code of the mapping square (see Fig. 1), year of the first record and name of observer. Data on absence of the species are indicated by subsequent records of the species in the same squares or near squares from which it had not previously been recorded (e.g. 2008 – no record, 2009 – first record).

opennotspecifiedSep 2023View details →

Figure 1 in Head morphology reflects the introduction history in a globally invasive carnivore-the small Indian mongoose

Figure 1. Geographical distribution and introduction history of the small Indian mongoose populations sampled in this study.