Forest giants on different evolutionary branches: Ecomorphological convergence in helicopter damselflies *

  title={Forest giants on different evolutionary branches: Ecomorphological convergence in helicopter damselflies *},
  author={Emmanuel F. A. Toussaint and Seth M. Bybee and Robert J. Erickson and Fabien L. Condamine},
The convergent evolution of analogous features is an evolutionary process occurring independently across the tree of life. From the evolution of echolocation, prehensile tail, viviparity, or winged flight, environmental factors often drive this astonishing phenomenon. However, convergent evolution is not always conspicuous or easily identified. Giant damselflies count among the largest flying insects on Earth, and have astonishing ecologies including orb‐web spider plucking and oviposition in… Expand
The evolutionary history of colour polymorphism in Ischnura damselflies (Odonata: Coenagrionidae)
A major challenge in evolutionary biology concerns how genetic and phenotypic variation is created and maintained. In this study, we investigated the origin(s) and evolutionary patterns of theExpand
A molecularphylogeny offorktail damselflies(genus Ischnura)revealsa dynamic macroevolutionary history of female colour polymorphisms.
This study presents the first time-calibrated phylogeny of Ischnura, using a multispecies coalescent approach and incorporating both molecular and fossil data for 41 extant species (55% of the genus) and provides a robust phylogenetic framework for future research on the dynamic macroevolutionary history of this clade with its extraordinary diversity of sex-limited female polymorphisms. Expand
Digest: Ecomorphological convergence across the Atlantic *
  • S. Ingley
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 2019
Molecular phylogenetic approaches are used to provide convincing evidence that these “forest giants” are in fact an example of ecomorphological convergence across the Atlantic Ocean. Expand


Convergent evolution of gigantism in damselflies of Africa and South America? Evidence from nuclear and mitochondrial sequence data.
The proposed phylogeny suggests that C. grandis represents a Gondwana relict, and supports the view that the evolution of gigantism in damselflies from Africa and South America is not the result of convergent evolution due to strikingly similar habitat preferences, but rather the results of close genealogical relationship. Expand
Extreme convergence in stick insect evolution: phylogenetic placement of the Lord Howe Island tree lobster
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. Expand
Ancient associations of aquatic beetles and tank bromeliads in the Neotropical forest canopy
Bromeliad tanks create a second stratum of aquatic freshwater habitat independent of that on the ground but affected by parallel processes of species and population diversification at various temporal scales, possibly reflecting the paleoclimatic history of neotropical forests. Expand
Deep-Time Convergence in Rove Beetle Symbionts of Army Ants
It is demonstrated that myrmecoid rove beetles are strongly polyphyletic, with this adaptive morphological and behavioral syndrome having evolved at least 12 times during the evolution of a single staphylinid subfamily, Aleocharinae. Expand
Explosive Adaptive Radiation and Extreme Phenotypic Diversity within Ant-Nest Beetles
Results of the first molecular-based phylogeny of ant-nest beetles are presented, which reveals that this symbiosis has produced one of the most stunning examples of rapid adaptive radiation documented to date. Expand
Still a one species genus? Strong genetic diversification in the world’s largest living odonate, the Neotropical damselfly Megaloprepus caerulatus
The genetic data suggest that Megaloprepus may actually consist of more than one species, and the taxonomic status of the group should be revised in light of the three distinct genetic clusters found in different forest regions. Expand
Cretaceous West Gondwana vicariance shaped giant water scavenger beetle biogeography
The biogeographical history of hydrophiline water beetles is consistent with the hypothesis of West Gondwana vicariance, although an origin in either Africa or South America is a likely alternative. Expand
Relaxed phylogenetics and the palaeoptera problem: resolving deep ancestral splits in the insect phylogeny.
A systematic reinvestigation of the basal pterygote split is presented and methods that exploit temporal information using fossil calibrations, combined with additional assumptions about the evolutionary process, are shown to provide more consistent results, for example, supporting Palaeoptera, even for data sets that previously supported other hypotheses. Expand
Use of Forest and Tree Species, and Dispersal by Giant Damselflies (Pseudostigmatidae): Their Prospects in Fragmented Forests
The data reviewed here suggest that forest fragmentation, exacerbated by less predictable threats from global warming, may pose a greater threat to Mega than previously thought. Expand
Molecules, morphology and fossils: a comprehensive approach to odonate phylogeny and the evolution of the odonate wing
Fossil taxa did not seem to provide signals crucial to recovering a robust phylogeny, but were critical to understanding the evolution of key morphological features associated with flight. Expand