Difference between revisions of "Why did insects win?"
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==Sources== | ==Sources== | ||
| − | ==Evolution of Arthropoda== | + | ===Evolution of Arthropoda=== |
* Marine evolution of Arachnida: "The oldest known scorpions lived around 430 million years ago in the Silurian period, on the bottom of shallow tropical seas.[15] These first scorpions had gills instead of the present forms' book lungs." ({{en|Scorpion}}) | * Marine evolution of Arachnida: "The oldest known scorpions lived around 430 million years ago in the Silurian period, on the bottom of shallow tropical seas.[15] These first scorpions had gills instead of the present forms' book lungs." ({{en|Scorpion}}) | ||
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* [http://gbe.oxfordjournals.org/content/2/425.abstract Rota-Stabelli et al. 2010], mitochondrial genomes from several arthropoda, further Pancrustacea evidence. | * [http://gbe.oxfordjournals.org/content/2/425.abstract Rota-Stabelli et al. 2010], mitochondrial genomes from several arthropoda, further Pancrustacea evidence. | ||
| − | ==Evolution of insect flight== | + | ===Evolution of insect flight=== |
Wings as primitive tracheal gills: {{en|Evolution_of_insects#Origin_of_insect_flight}} | Wings as primitive tracheal gills: {{en|Evolution_of_insects#Origin_of_insect_flight}} | ||
| − | ==Evolution of metamorphosis== | + | ===Evolution of metamorphosis=== |
* "The evolution of complete metamorphosis in insects is a key innovation that has led to the successful diversification of holometabolous insects," [http://dev.biologists.org/content/135/3/569.abstract Suzuki et al.] (molecular biology of pupa) | * "The evolution of complete metamorphosis in insects is a key innovation that has led to the successful diversification of holometabolous insects," [http://dev.biologists.org/content/135/3/569.abstract Suzuki et al.] (molecular biology of pupa) | ||
Revision as of 15:57, 13 September 2010
It basically starts from this blog post. The question is: why are Insecta the most diverse group of arthropods, if not of living beings, on Earth's land, while Arachnida and other arthropod groups aren't?
Here I collect some material for further posts on the subject.
Contents
Sources
Evolution of Arthropoda
- Marine evolution of Arachnida: "The oldest known scorpions lived around 430 million years ago in the Silurian period, on the bottom of shallow tropical seas.[15] These first scorpions had gills instead of the present forms' book lungs." ( Scorpion )
- Recent evidence for Pancrustacea hypothesis based on nuclear genes phylogenies: Regier et al. 2010
- Rota-Stabelli et al. 2010, mitochondrial genomes from several arthropoda, further Pancrustacea evidence.
Evolution of insect flight
Wings as primitive tracheal gills: Evolution_of_insects#Origin_of_insect_flight
Evolution of metamorphosis
- "The evolution of complete metamorphosis in insects is a key innovation that has led to the successful diversification of holometabolous insects," Suzuki et al. (molecular biology of pupa)
Hypothesis
- The Pancrustacea hypothesis is intriguing because Crustaceans show also considerable diversity. Clades away from Pancrustaceans show less diversity? Measurement of morphological characters?