Speciation: Don't Fly and Diversify?

Vogler, Alfried P.; Timmermans, Martijn J. T. N.

doi:10.1016/j.cub.2012.03.015

Cited by 26 publications

(31 citation statements)

References 14 publications

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“…The current study demonstrates that disruptive natural selection can play a key role in the earliest stages of biological speciation (Schluter, , ). Wing loss has previously been linked to increased speciation rates in insects, although this effect had been widely assumed to result from the physical isolation of wingless populations (i.e., allopatric speciation; Ikeda et al, ; Vogler & Timmermans, ). Crucially, the results of our current study may provide a new evolutionary explanation for the global phenomenon of wingless alpine insect assemblages.…”

Section: Discussionmentioning

confidence: 99%

“…Subsequently, however, wing loss has occurred repeatedly across nearly all winged insect orders (Roff, ). Although this secondary wing reduction eliminates the advantages of insect flight, recent studies have suggested that wing loss can increase the rate of species diversification (Ikeda, Nishikawa, & Sota, ; Vogler & Timmermans, ). Additionally, while numerous insect taxa exhibit wing‐length polymorphism, the ecological drivers of this diversity have often remained unclear.…”

Section: Introductionmentioning

confidence: 99%

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Ecological gradients drive insect wing loss and speciation: The role of the alpine treeline

et al. 2019

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Alpine ecosystems are frequently characterized by an abundance of wing‐reduced insect species, but the drivers of this biodiversity remain poorly understood. Insect wing reduction in these environments has variously been attributed to altitude, temperature, isolation, habitat stability or decreased habitat size. We used fine‐scale ecotypic and genomic analyses, along with broad‐scale distributional analyses of ecotypes, to unravel the ecological drivers of wing reduction in the wing‐dimorphic stonefly Zelandoperla fenestrata complex. Altitudinal transects within populations revealed dramatic wing reduction over very fine spatial scales, tightly linked to the alpine treeline. Broad biogeographical analyses confirm that the treeline has a much stronger effect on these ecotype distributions than altitude per se. Molecular analyses revealed parallel genomic divergence between vestigial‐winged (high altitude) and full‐winged (low altitude) ecotypes across distinct streams. These data thus highlight the role of the alpine treeline as a key driver of rapid speciation, providing a new model for ecological diversification along exposure gradients.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecological gradients drive insect wing loss and speciation: The role of the alpine treeline

et al. 2019

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“…Loss of flight in beetles not only promotes speciation, but also those flightless species retain a higher genetic differentiation on population level and show deeper genetic branching than flying species [39]. A life history that requires little movement is an equally important factor [40]. In Trigonopterus, both factors are given: these weevils, as well as all the other members of the subtribe Tylodina are fully wingless, and their habitat, the leaf-litter of humid forests, is a highly stable and relatively uniform resource.…”

Section: (D) Dating and Ancestral Area Reconstructionmentioning

confidence: 99%

Multiple transgressions of Wallace's Line explain diversity of flightlessTrigonopterusweevils on Bali

et al. 2014

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The fauna of Bali, situated immediately west of Wallace's Line, is supposedly of recent Javanese origin and characterized by low levels of endemicity. In flightless Trigonopterus weevils, however, we find 100% endemism for the eight species here reported for Bali. Phylogeographic analyses show extensive in situ differentiation, including a local radiation of five species. A comprehensive molecular phylogeny and ancestral area reconstruction of Indo-Malayan-Melanesian species reveals a complex colonization pattern, where the three Balinese lineages all arrived from the East, i.e. all of them transgressed Wallace's Line. Although East Java possesses a rich fauna of Trigonopterus, no exchange can be observed with Bali. We assert that the biogeographic picture of Bali has been dominated by the influx of mobile organisms from Java, but different relationships may be discovered when flightless invertebrates are studied. Our results highlight the importance of in-depth analyses of spatial patterns of biodiversity.

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“…We found surprisingly high morphological diversity in the Bornean Morimopsini, which resulted in the descriptions of three new genera with four new species. Given their limited distributional ranges in stable long-term habitats of humid mountain forests together with the high speciation rates known for the flightless lineages (Ikeda et al 2012, Vogler and Timmermans 2012), the high diversity found in the studied genera is not such surprising. Considering the rarity of Morimopsini specimens in the collections, their life-history and hitherto unexplored areas in Borneo, we can expect many more species will be discovered in that island in the near future.…”

Section: Discussionmentioning

confidence: 90%

Review of Dolichostyrax Aurivillius (Cerambycidae, Lamiinae) in Borneo, with descriptions of three new genera and the first case of (ovo)viviparity in the long-horned beetles

Gabriš

Kundrata

Trnka

2016

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We reviewed the species of genus Dolichostyrax Aurivillius (Cerambycidae: Morimopsini) from Borneo, which included the redescriptions of two species – Dolichostyrax moultoni Aurivillius, 1911 and Dolichostyrax longipes Aurivillius, 1913, with the first female description for the latter. After the examination of the additional material previously identified as Dolichostyrax, we described three new genera – Borneostyrax gen. n., Microdolichostyrax gen. n., and Eurystyrax gen. n. Borneostyrax cristatus sp. n. was described based on the male and female specimens, whilst Microdolichostyrax hefferni sp. n., Microdolichostyrax minutus sp. n. and Eurystyrax nemethi sp. n. are known only from females. All studied species are distributed in the mountain regions of Sabah, with the exception of Dolichostyrax moultoni from Sarawak. An identification key to the genera of Bornean Morimopsini and species of Dolichostyrax, Borneostyrax gen. n., Microdolichostyrax gen. n. and Eurystyrax gen. n. is provided and their distributions and intraspecific morphological variability are discussed. The short and wide ovipositor, loss of spermatheca, and presence of large larvae without apparent eggbursters inside the female abdomens indicate the presence of (ovo)viviparity in Borneostyrax gen. n. This is the first case of this rare phenomenon within Cerambycidae.

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Speciation: Don't Fly and Diversify?

Abstract: Loss of flight in Japanese carrion beetles is correlated with greater population subdivision and higher speciation rate. This reveals the complex relationship of trait evolution with dispersal power, range size and diversification.

Cited by 26 publications

References 14 publications

Ecological gradients drive insect wing loss and speciation: The role of the alpine treeline

Ecological gradients drive insect wing loss and speciation: The role of the alpine treeline

Multiple transgressions of Wallace's Line explain diversity of flightlessTrigonopterusweevils on Bali

Review of Dolichostyrax Aurivillius (Cerambycidae, Lamiinae) in Borneo, with descriptions of three new genera and the first case of (ovo)viviparity in the long-horned beetles

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