Papilio dardanus: Difference between revisions
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==Mimicry== |
==Mimicry== |
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The species shows [[polymorphism (biology)|polymorphism]] in [[insect wing|wing]] appearance, though this is limited to [[female]]s, which are often given as an example of |
The species shows [[polymorphism (biology)|polymorphism]] in [[insect wing|wing]] appearance, though this is limited to [[female]]s, which are often given as an example of [[Batesian mimicry]] in insects.<!-- Wickler, quote --> This female-limited [[mimicry]] was first described in 1869 by [[Roland Trimen]].<ref>{{cite journal|last=Trimen|first=R.|year=1869|title=On some remarkable mimetic analogies among African butterflies|journal= [[Transactions of the Linnean Society of London]]|volume= 26|pages=497–522|doi=10.1111/j.1096-3642.1869.tb00538.x}}</ref> [[Male]]s have a more or less uniform appearance throughout the species' range, but females come in at least 14 varieties or morphs.<ref name = "Nijhout" /> Some female morphs share a very similar pattern of [[animal colouration|colouration]] with various species of distasteful butterfly (e.g. from the family [[Danaidae]]<!-- Wickler gives two genera -->),<ref name="Mallet">{{cite web|first=J. |last=Mallet|year=2001|url=http://www.ucl.ac.uk/taxome/jim/Mim2/dardanus.html|title=Batesian mimicry in Papilio dardanus|accessdate=2009-08-23}}</ref> while others have been found that mimic male appearance (''andromorphs''). The persistence of these various morphs or different types of females may be explained by [[frequency dependent selection]]. Cook et al. suggest that Batesian mimics gain a fitness advantage by [[insects as prey|avoiding predators]], but suffer harassment from males (see [[sexual conflict]]), whereas andromorphs (male mimics) are vulnerable to [[predation]] but are not harassed by male [[mating]] attempts.<ref name = "Cook">{{cite journal |last=Cook |first=S. E. |authorlink= |coauthors=Vernon, J. G.; Bateson; M., Guilford, T.|year=1994 |month= |title= Mate choice in the polymorphic African swallowtail butterfly, Papilio dardanus: Male-like females may avoid sexual harassment |trans_title= |journal=[[Animal Behaviour (journal)|Animal Behaviour]] |volume=47 |issue=2 |pages=389–397 |id= |url= |accessdate=2009-07-27 |quote= |doi=10.1006/anbe.1994.1053 }}</ref> |
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Such female-limited Batesian mimicry is not unique to this species, even in the genus ''[[Papilio]]''. For instance ''[[Papilio memnon]]'' shows a similar case of polymorphism in females.<ref>{{cite web|author=Mallet, James|year=2001|url=http://www.ucl.ac.uk/taxome/jim/Mim2/memnon.html|title=Batesian mimicry in Papilio memnon|accessdate=2009-09-09}}</ref> Similarly, male mimicry has been observed in another insect, a [[damselfly]] (''[[Ischnura ramburii]]'') which also appears to have evolved camouflage to avoid sexual coercion by males.<ref>Lessells, K. (2005). "Sexual Conflict". In ''[[Encyclopedia of Life Sciences]]''.</ref> |
Such female-limited Batesian mimicry is not unique to this species, even in the genus ''[[Papilio]]''. For instance ''[[Papilio memnon]]'' shows a similar case of polymorphism in females.<ref>{{cite web|author=Mallet, James|year=2001|url=http://www.ucl.ac.uk/taxome/jim/Mim2/memnon.html|title=Batesian mimicry in Papilio memnon|accessdate=2009-09-09}}</ref> Similarly, male mimicry has been observed in another insect, a [[damselfly]] (''[[Ischnura ramburii]]'') which also appears to have evolved camouflage to avoid sexual coercion by males.<ref>Lessells, K. (2005). "Sexual Conflict". In ''[[Encyclopedia of Life Sciences]]''.</ref> |
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Revision as of 04:32, 12 May 2011
| Papilio dardanus | |
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| Papilio dardanus mating | |
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| Species: | P. dardanus
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| Papilio dardanus Brown, 1776
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Papilio dardanus (the African Swallowtail, Mocker Swallowtail or Flying Handkerchief), is a species of butterfly in the family Papilionidae (the Swallowtails). The species is broadly distributed throughout sub-Saharan Africa.[1] The British entomologist E. B. Poulton described it as "the most interesting butterfly in the world".[2]
Classification
Molecular studies have provided evidence that this species' closest relative is Papilio phorcas, with Papilio constantinus being the next closest (see images below).[3]
Mimicry
The species shows polymorphism in wing appearance, though this is limited to females, which are often given as an example of Batesian mimicry in insects. This female-limited mimicry was first described in 1869 by Roland Trimen.[4] Males have a more or less uniform appearance throughout the species' range, but females come in at least 14 varieties or morphs.[1] Some female morphs share a very similar pattern of colouration with various species of distasteful butterfly (e.g. from the family Danaidae),[5] while others have been found that mimic male appearance (andromorphs). The persistence of these various morphs or different types of females may be explained by frequency dependent selection. Cook et al. suggest that Batesian mimics gain a fitness advantage by avoiding predators, but suffer harassment from males (see sexual conflict), whereas andromorphs (male mimics) are vulnerable to predation but are not harassed by male mating attempts.[6]
Such female-limited Batesian mimicry is not unique to this species, even in the genus Papilio. For instance Papilio memnon shows a similar case of polymorphism in females.[7] Similarly, male mimicry has been observed in another insect, a damselfly (Ischnura ramburii) which also appears to have evolved camouflage to avoid sexual coercion by males.[8]
Gallery
Wikimedia Commons has media related to Papilio dardanus.
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Emerging from chrysalis -
Adult -
In the wild, South Africa -
Papilio dardanus antinorii female -
Papilio dardanus ochracea female -
Papilio dardanus ochracea male -
Ventral view of same male -
Eclosion video
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Papilio phorcas (male), closest relative of P. dardanus -
Papilio constantinus, next closest relative
.jpg)
See also
- Dardanus (figure in Greek mythology)
- Disruptive selection
- Supergene
- E. B. Ford, Philip Sheppard and Cyril Clarke (some notable researchers)
References
- ^ a b Nijhout, H. F. (2003). "Polymorphic mimicry in Papilio dardanus: mosaic dominance, big effects, and origins" (PDF). Evolution and Development. 5 (6): 579–592. doi:10.1046/j.1525-142X.2003.03063.x. PMID 14984040. Retrieved 2009-08-22.
{{cite journal}}: Cite has empty unknown parameter:|month=(help) - ^ Poulton, E. B. (1924). "Papilio dardanus. The most interesting butterfly in the world". Journal of the East African and Ugandan Natural History Society. 20: 4–22.
- ^ Vane-Wright, R. I. (1999). "Evolution of the mimetic African swallowtail butterfly Papilio dardanus: molecular data confirm relationships with P. phorcas and P. constantinus". Biological Journal of the Linnean Society. 99: 215–229.
{{cite journal}}: Cite has empty unknown parameter:|month=(help); Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Trimen, R. (1869). "On some remarkable mimetic analogies among African butterflies". Transactions of the Linnean Society of London. 26: 497–522. doi:10.1111/j.1096-3642.1869.tb00538.x.
- ^ Mallet, J. (2001). "Batesian mimicry in Papilio dardanus". Retrieved 2009-08-23.
- ^ Cook, S. E. (1994). "Mate choice in the polymorphic African swallowtail butterfly, Papilio dardanus: Male-like females may avoid sexual harassment". Animal Behaviour. 47 (2): 389–397. doi:10.1006/anbe.1994.1053.
{{cite journal}}:|access-date=requires|url=(help); Cite has empty unknown parameters:|trans_title=and|month=(help); Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Mallet, James (2001). "Batesian mimicry in Papilio memnon". Retrieved 2009-09-09.
- ^ Lessells, K. (2005). "Sexual Conflict". In Encyclopedia of Life Sciences.
External links
Wikispecies has information related to Papilio dardanus.
