Sven Bradler

Publications43
h-index18
Citations1,327
Highly Influential Citations67
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Loss and recovery of wings in stick insects
TLDR
Stick insects (order Phasmatodea) diversified as wingless insects and that wings were derived secondarily, perhaps on many occasions are shown, suggesting that wing developmental pathways are conserved in wingless phasmids and that ‘re-evolution' of wings has had an unrecognized role in insect diversification.
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Extreme convergence in stick insect evolution: phylogenetic placement of the Lord Howe Island tree lobster
TLDR
It is concluded that the phenotypic traits leading to the traditional classification are convergent adaptations to ground-living behaviour, and molecular dating analyses indicate an ancient divergence between Dryococelus and its Australian relatives.
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The first fossil leaf insect: 47 million years of specialized cryptic morphology and behavior
TLDR
The combination of primitive and derived characters revealed by Eophyllium allows the determination of its exact phylogenetic position and illuminates the evolution of leaf mimicry for this insect group, providing direct evidence that Phylliinae originated at least 47 Mya.
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Evolution of Oviposition Techniques in Stick and Leaf Insects (Phasmatodea)
TLDR
The results unequivocally demonstrate that the ancestral oviposition strategy for female stick and leaf insects is to remain in the foliage and drop or flick eggs to the ground, a strategy that maintains their masquerade.
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The phylogenetic placement and biogeographical origins of the New Zealand stick insects (Phasmatodea)
TLDR
These analyses show that Lanceocercata and their sister group, the Stephanacridini, probably diverged from their South American relatives, the Cladomorphinae, as a result of the separation of Australia, Antarctica and South America.
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Extreme convergence in egg-laying strategy across insect orders
TLDR
A novel egg-deposition mode for Phasmatodea is reported performed by an undescribed Vietnamese species of the enigmatic subfamily Korinninae that produces a complex egg case (ootheca), containing numerous eggs in a highly ordered arrangement.
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On the head morphology of Phyllium and the phylogenetic relationships of Phasmatodea (Insecta)
TLDR
The analysis of characters of the head yielded three new autapomorphies of Phylliinae, the presence of a protuberance on the attachment site of the dorsal tentorial arms, dorsoventrally flattened maxillary- and labial palps, and possibly the narrow and U-shaped field of trichomes on the apical part of the galea.
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The pregenital abdominal musculature in phasmids and its implications for the basal phylogeny of Phasmatodea (Insecta: Polyneoptera)
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Single origin of the Mascarene stick insects: ancient radiation on sunken islands?
TLDR
It is proposed that the Mascarene stick insects diversified on landmasses now eroded away, presumably to the north of Mauritius, and most likely allowed for adaptive speciation and served as significant sources of diversity that contributed to the biomes of the MASCarene archipelago and the megadiverse Madagascar.
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Old World and New World Phasmatodea: Phylogenomics Resolve the Evolutionary History of Stick and Leaf Insects
TLDR
The results suggest that the extant distribution of Phasmatodea is largely the result of dispersal events in a recently and rapidly diversified insect lineage rather than the resultof vicariant processes.
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