Mecópteros: Diferenzas entre revisións

Contido eliminado Contido engadido
Miguelferig (conversa | contribucións)
Miguelferig (conversa | contribucións)
Liña 55:
== Primeiros polinizadores ==
[[Ficheiro:Miriholcorpa A.png|miniatura|dereita|O holotipo ''[[Miriholcorpa|Miriholcorpa forcipata]]'', un antepasado dos mecópteros do [[Xurásico]] medio.]]
<!--
Extinct Mecoptera species have been proposed to have been important plant pollinators.<ref name="Ollerton"/><ref name="Ren"/> Early nonangiosperm [[gymnosperm]] seed plants during the late Middle Jurassic to mid–Early Cretaceous period have been believed to be mainly wind-pollinated. However, examination of fossil mecopterans show they had siphon feeding apparatus that could fertilize early gymnosperms by feeding on their [[nectar]] and [[pollen]]. The lack of iron enrichment in their fossilized [[proboscis|probosces]] rules out a use in blood drinking. One question over this suggestion is that so far pollen has not been found associated with these feeding parts, which is surprising for the amber-encased insects which should have preserved pollen, but "further fossils may provide this information".<ref name="Ollerton"/>
 
Propúxose que as especies de Mecoptera extintas foron importantes polinizadores de plantas.<ref name="Ollerton"/><ref name="Ren"/> As plantas con sementes iniciais [[ximnospermas]] non anxiospermas durante o Xurásico medio ata a metade do Cretáceo temperán se cría que eran polinizadas principalmente polo vento. Porén, o exame dos cecópteros fósiles mostran que teñen un aparato de alimentación tipo sifón que podería fertilizar ás primeiras ximnospermas ao alimentarse do seu [[néctar]] e [[pole]]. A falta dun enriquecemento en ferro nas súas probóscides fosilizadas descarta o seu uso para chuchar sangue. Unha cuestión que se lle fai a esta proposta é por que ata agora non se atopou pole asociado con estas pezas bucais, o cal é sorprendente en insectos incluídos en [[ámbar]] que debería preservar o pole, pero "novos fósile poder´kian proporcionar esta información", segundo responden algúns autores.<ref name="Ollerton"/>
Eleven species have been identified belonged to three families, Mesopsychidae, Aneuretopsychidae, and Pseudopolycentropodidae for which "the encompassing name Aneuretopsychina is available".<ref name="Ren"/> Their lengths range from 3&nbsp;mm in ''Parapolycentropus burmiticus'' to 28&nbsp;mm in ''Lichnomesopsyche gloriae''.<ref name="Ren"/> The proboscis could be as long as 10&nbsp;mm. Pollen transfer has been suggested to occur by body surface transport on mouthparts and head surfaces like that in bee flies and hover flies, but no such associated pollen has been found, though the insects were preserved in [[amber]].<ref name="Ren"/> They are thought to have pollinated such plants as [[Caytoniaceae]], [[Cheirolepidiaceae]], [[Czekanowskiaceae]], [[Pentoxylaceae]], and [[Gnetales]], as their ovulate organs are either poorly suited for wind pollination or have structures that could support long-proboscid fluid feeding.<ref name="Ren"/>
 
Identificáronse once especies que pertencían a tres familias, Mesopsychidae, Aneuretopsychidae e Pseudopolycentropodidae para os cales "disponse do nome que os engloba Aneuretopsychina".<ref name="Ren"/> As súa lonxitudes van de 3&nbsp;mm en ''Parapolycentropus burmiticus'' a 28&nbsp;mm en ''Lichnomesopsyche gloriae''.<ref name="Ren"/> A probóscide podía ser de ata 10&nbsp;mm. A transferencia de pole suxeriuse que puido ocorrer polo transporte na superficie do corpo sobre as pezas bucais de a cabeza, pero non se atoparon asociados co pole, aínda que os insectos foron conservados en ámbar.<ref name="Ren"/> Crese que polinizaban plantas como as [[Caytoniaceae]], [[Cheirolepidiaceae]], [[Czekanowskiaceae]], [[Pentoxylaceae]] e [[Gnetales]], xa que os seus órganos ovulares son pouco axeitados para a polinización polo vento ou teñen estruturas que podían soportar unha alimentación por fluídos por longas probóscides.<ref name="Ren"/>
== Apareamento ==
 
== Apareamento ==
<!--
Scorpionflies in the ''Bittacidae'' provide a nuptial meal in the form of a captured insect prey. The size of the prey is correlated with the mating time allowed by the female:<ref>Gullan, P.J. and P.S. Cranston. ''The Insects: An Outline of Entomology'', second edition. 2000: Blackwell Science, Ltd.</ref>