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opencc-by-4.0Jun 2018View details →

Fig. 2 in Host range expansion and increasing damage potential of Euwallacea nr. fornicatus (Coleoptera: Curculionidae) in Florida

Fig. 2. Relationships among host tree diameter, height above ground, and site of attack by Euwallacea nr. fornicatus. Density of beetle entrance holes versus the trunk or branch diameter (A) and the trunk or branch height (B) of host Lysiloma latisiliquum from 4 trees. Mean values topped by the same letter are not significantly different (Tukey's test, P = 0.05).

opencc-by-4.0Jun 2018View details →

Fig. 1 in Host range expansion and increasing damage potential of Euwallacea nr. fornicatus (Coleoptera: Curculionidae) in Florida

Fig. 1. Ambrosia beetle gallery entrances in the trunk of a Lysiloma latisiliquum. Euwallacea nr. fornicatus and Theoborus ricini were the two most abundant species of ambrosia beetle recovered from L. latisiliquum.

Fig. 5 in Range expansion of the invasive Tropical House Gecko, Hemidactylus mabouia (Squamata: Gekkonidae), in South America

Fig. 5. Known distribution of Hemidactylus mabouia in South America. Black circles represent literature data (most previous records) and red circles indicate the location of new records in Peru (2008–2019). Other relatively recent records in Peru (1989– 1999) are from the San Martin and Huánuco regions (yellow triangle and square). Recent records from coastal Ecuador are indicated with yellow diamonds. The color scheme of the map represents the elevation in m asl (see legend on the right).

Fig. 4. A in Range expansion of the invasive Tropical House Gecko, Hemidactylus mabouia (Squamata: Gekkonidae), in South America

Fig. 4. A consensus Bayesian phylogeny based on 474 bp of aligned mitochondrial sequences (16s rRNA gene). Posterior probability values are shown on nodes. The arrow indicates the specimen from central Peru (MUSM 33241; Field Nbr. RvM64–14).

Fig. 1 in Range expansion of the invasive Tropical House Gecko, Hemidactylus mabouia (Squamata: Gekkonidae), in South America

Fig. 1. Dorsal views of head (A), midbody (B), and tail (C) of adult female of Hemidactylus mabouia (MUSM 33241; Field Nbr. RvM64–14) collected in Chanchamayo, Peru. Dorsal views of head (D), midbody (E), and tail (F) of adult female Hemidactylus frenatus (MVZ 73664) collected in Bataan Province, Philippines. Photographs by Rudolf von May.

Fig. 2 in Range expansion of the invasive Tropical House Gecko, Hemidactylus mabouia (Squamata: Gekkonidae), in South America

Fig. 2. Dorsal views of adult male Hemidactylus mabouia (CORBIDI 6276) collected in Loreto (Genaro Herrera, Requena Province), Peru (A). Dorsal view of juvenile Hemidactylus mabouia (CORBIDI 15363) collected in Lima (Surquillo, Lima Province), Peru (B). Lateral view of body (C) and head (D), ventral view of head and body (E), and ventral view of right hand (F) of the same individual (CORBIDI 15363). Photographs by Pablo Venegas (A) and Germán Chávez (B–F).

Fig. 3 in Range expansion of the invasive Tropical House Gecko, Hemidactylus mabouia (Squamata: Gekkonidae), in South America

Fig. 3. Dorsolateral views of adult Hemidactylus frenatus from Aur Island, Malaysia (A), Nam Du Island, Vietnam (B), and Villavicencio, Meta, Colombia (C–D). Photographs by L. Lee Grismer (A–B) and Juan D. Vásquez-Restrepo (C–D).

opencc-zeroJan 2024View details →

Linked collectors and determiners for: New records of Orussus minutus Middlekauff, 1983 (Hymenoptera: Orussidae) represent a significant western range expansion.

Natural history specimen data linked to collectors and determiners held within, "New records of Orussus minutus Middlekauff, 1983 (Hymenoptera: Orussidae) represent a significant western range expansion". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c086e70f-8132-4558-b2d7-186c8926708e">https://bionomia.net/dataset/c086e70f-8132-4558-b2d7-186c8926708e</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c086e70f-8132-4558-b2d7-186c8926708e">https://gbif.org/dataset/c086e70f-8132-4558-b2d7-186c8926708e</a>. Formatted as a Frictionless Data package.

opencc-zeroOct 2021View details →

Data from: Selection on growth rate and local adaptation drive genomic adaptation during experimental range expansions in the protist Tetrahymena thermophila

1. Populations that expand their range can undergo rapid evolutionary adaptation of life-history traits, dispersal behaviour, and adaptation to the local environment. Such adaptation may be aided or hindered by sexual reproduction, depending on the context. 2. However, few empirical and experimental studies have investigated the genetic basis of adaptive evolution during range expansions. Even less attention has been given to the question how sexual reproduction may modulate such adaptive evolution during range expansions. 3. We here studied genomic adaptation during experimental range expansions of the protist Tetrahymena thermophilain landscapes with a uniform environment or a pH-gradient. Specifically, we investigated two aspects of genomic adaptation during range expansion. Firstly, we investigated adaptive genetic change in terms of the underlying numbers of allele frequency changes from standing genetic variation and de novo variants. We focused on how sexual reproduction may alter this adaptive genetic change. Secondly, we identified genes subject to selection caused by the expanding range itself, and directional selection due to the presence or absence of the pH-gradient. We focused this analysis on alleles with large frequency changes that occurred in parallel in more than one population to identify the most likely candidate targets of selection. 4. We found that sexual reproduction altered adaptive genetic change both in terms of de novo variants and standing genetic variation. However, sexual reproduction affected allele frequency changes in standing genetic variation only in the absence of long-distance gene flow. Adaptation to the range expansion affected genes involved in cell divisions and DNA repair, whereas adaptation to the pH-gradient additionally affected genes involved in ion balance, and oxidoreductase reactions. These genetic changes may result from selection on growth and adaptation to low pH. 5. In the absence of gene flow, sexual reproduction may have aided genetic adaptation. Gene flow may have swamped expanding populations with maladapted alleles, thus reducing the extent of evolutionary adaptation during range expansion. Sexual reproduction also altered the genetic basis of adaptation in our evolving populations via de novo variants, possibly by purging deleterious mutations or by revealing fitness benefits of rare genetic variants.

opencc-zeroMar 2023View details →

The turnover of plant-frugivore interactions along plant range expansion: consequences for natural colonisation processes

Plant-animal mutualisms such as seed dispersal are key interactions for sustaining plant range shifts. Whether the organisation of interactions with seed dispersers is reconfigured along the expansion landscape template, and its effects accelerating or slowing colonisation, remain elusive. Here we analyse plant-frugivore interactions in a scenario of rapid population expansion of a Mediterranean juniper. We combined complex network analyses with intensive field surveys, sampling interactions between individual plants and frugivores by DNA-Barcoding and phototrapping over two seasons. We assess the role of intrinsic and extrinsic intraspecific variability in shaping interactions and we estimate the contribution of individual plants to seed rain. The whole interaction network was highly structured, with a distinct set of modules including individual plants and frugivore species arranged concordantly along the expansion gradient. The modular configuration found was partially shaped by individual neighbourhood context (density and fecundity) and phenotypic traits (cone size). Interaction reconfiguration resulted in a higher and uneven contribution to seed dispersal rain by individuals of the expansion boundaries, providing signals of the colonisation local-history. Our study provides novel insights into the key role of mutualistic interactions in colonisation scenarios by promoting fast plant expansion processes.

opencc-zeroMay 2023View details →

Testing for adaptive changes linked to range expansion following a single introduction of the fall webworm

Adaptive evolution following colonization can affect the impact of invasive species. The fall webworm (FWW) invaded China 40 years ago through a single introduction event involving a severe bottleneck and subsequently diverged into two genetic groups. The well-recorded invasion history of FWW, coupled with a clear pattern of genetic divergence, provides an opportunity to investigate whether there is any sign of adaptive evolution following the invasion. Based on genome-wide SNPs, we identified genetically separated western and eastern groups of FWW and correlated spatial variation in SNPs with geographical and climatic factors. Geographic factors explained a similar proportion of the genetic variation across all populations compared to climatic factors. However, when the two population groups were analyzed separately, environmental factors explained more of the variation than geographic factors. SNP outliers in populations of the western group had relatively stronger response to precipitation than temperature-related variables. Functional annotation of SNP outliers identified genes associated with insect cuticle protein potentially related to desiccation adaptation in the western group and genes associated with lipase biosynthesis potentially related to temperature adaptation in the eastern group. Our study suggests that invasive species may maintain evolutionary potential to adapt to heterogeneous environments despite a single invasion event. The molecular data suggest that quantitative trait comparisons across environments would be worthwhile.

FIGURE 7 in Ptomaphagus thebeatles n. sp., a previously unrecognized beetle from Europe, with remarks on urban taxonomy and recent range expansion (Coleoptera: Leiodidae)

FIGURE 7 Enlarged section of the Maximum-likelihood phylogenetic reconstruction of fig. 6, with all COI sequences shown for the sericatus group, i.e., P. thebeatles, P. medius, and P. sericatus. Colours match those in fig. 5.

FIGURE 4 in Ptomaphagus thebeatles n. sp., a previously unrecognized beetle from Europe, with remarks on urban taxonomy and recent range expansion (Coleoptera: Leiodidae)

FIGURE 4 Dorsal (perpendicular to the surface of the aedeagus between the orifice and the apex) and lateral views of the apices of the aedeagi of members of the Ptomaphagus sericatus complex. a: P. medius from Oegstgeest, the Netherlands, dorsal (a) and lateral (b) views. b: P. sericatus from Les Arnoulats, France, dorsal (c) and lateral (b) views. c: P. thebeatles from Amsterdam, the Netherlands, dorsal (e) and lateral (f) views. (Images derived from topotypical material, not from the holotype itself.).

FIGURE 2 in Ptomaphagus thebeatles n. sp., a previously unrecognized beetle from Europe, with remarks on urban taxonomy and recent range expansion (Coleoptera: Leiodidae)

FIGURE 2 Neotype of P. sericatus from Kiev, Ukraine: a, habitus; b, aedeagus, dorsal view (angle of view somewhat more rostral than in fig. 4); c, aedeagus, lateral view; d, genital segment; e, labels.

FIGURE 3 Antennomeres 1-7 in Ptomaphagus thebeatles n. sp., a previously unrecognized beetle from Europe, with remarks on urban taxonomy and recent range expansion (Coleoptera: Leiodidae)

FIGURE 3 Antennomeres 1-7 for members of the Ptomaphagus sericatus complex. a: P. sericatus, female (a) and male (b) from Les Arnoulats, France. b: P. thebeatles, female (c) from Middelburg, the Netherlands, and male (d) from Schiedam, the Netherlands. After Schilthuizen, 1989. c: P. medius, female (e) from Nieuw & St. Joostland, the Netherlands, and male (f) from Oostvoorne, the Netherlands. After Schilthuizen, 1989.

FIGURE 5 in Ptomaphagus thebeatles n. sp., a previously unrecognized beetle from Europe, with remarks on urban taxonomy and recent range expansion (Coleoptera: Leiodidae)

FIGURE 5 Distribution map of the specimens studied for this paper (the extralimital specimens of P. medius in Canada have not been included). The white arrows point at records that we interpret as recent range expansions.

FIGURE 6 in Ptomaphagus thebeatles n. sp., a previously unrecognized beetle from Europe, with remarks on urban taxonomy and recent range expansion (Coleoptera: Leiodidae)

FIGURE 6 Maximum-likelihood phylogenetic reconstruction, based on COI sequences, of P. thebeatles, P. medius, P. sericatus, and other members of the subgenus Ptomaphagus s. str., rooted with P. (Adelops) hatchi. Multiple sequences per species have been collapsed. Support values are given only for branches with>80% bootstrap percentage.

publicJan 2024View details →

Evolution is more repeatable in the introduction than range expansion phase of colonization

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publicJan 2025View details →

Data from: The role of host-range expansion and co-speciation in host-parasite associations with the divergence of the great tit species complex

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