Aposematismo: Diferenzas entre revisións

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Miguelferig (conversa | contribucións)
Miguelferig (conversa | contribucións)
Liña 106:
O aposematismo é unha estratexia suficientemente útil para ter efectos significativos sobre a evolución de especies aposemáticas e non aposemáticas.
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Non-aposematicAs speciesespecies havenon oftenaposemáticas [[evolution|evolved]]evolucionaron toa miúdo [[mimicrymimetismo|mimicimitando]] theas conspicuousvistosas markingsmarcas ofdos theirseus aposematiceqivalentes counterpartsaposemáticos. ForPor exampleexemplo, thea avelaíña ''[[hornetSesia mothapiformis]]'' isé aunha mimicimitadora ofdas theavespas yellowjacket''[[Vespula]]'' waspe ''[[Dolichovespula]]''; itparécese resemblesa theestas wasp,avespas butpero hasnon noten stingferrete. AUn predatorpredador whichque avoidsevita thea waspavespa willtamén toevitará someen degreecerto alsograo avoida the mothavelaíña. ThisIsto is known asdenomínase [[Batesianmimetismo mimicrybatesiano]], afterpor [[Henry Walter Bates]], aun Britishnaturalista naturalistbritánico whoque studiedestudou Amazonianas butterfliesbolboretas inamazónicos thena secondsegunda halfmetade of thedo 19thséculo centuryXIX.<ref>{{cite journal | last1=Bates | first1=H. W. | year=1861 | title=Contributions to an insect fauna of the Amazon valley. Lepidoptera: Heliconidae | journal=[[Transactions of the Linnean Society of London|Transactions of the Linnean Society]] | volume=23 | issue=3 | pages=495–566 | url=https://www.biodiversitylibrary.org/page/26846005 | doi=10.1111/j.1096-3642.1860.tb00146.x }}; ReprintReimpresión: {{cite journal | doi=10.1111/j.1095-8312.1981.tb01842.x | title=Contributions to an insect fauna of the Amazon valley (Lepidoptera: Heliconidae) | year=1981 | last1=Bates | first1=Henry Walter | journal=Biological Journal of the Linnean Society | volume=16 |issue=1| pages=41–54 }}</ref> BatesianO mimicrymimetismo isbatesiano frequencydepende dependentda frecuencia: ité ismáis mostefectivo effectivecando whena therazón ratioentre ofo mimicimitador toe modelo ismodelo lowé baixa; otherwiseoutro modo, predatorsos learnpredadores toaprenden recognisea therecoñecer os impostorsimpostores.<ref name="Harper 1955–1961">{{cite journal| last=Harper| first=G. R|author2=Pfennig, D. W| title=Mimicry on the edge: why do mimics vary in resemblance to their model in different parts of their geographical range?| journal=Proceedings of the Royal Society B: Biological Sciences| date=22 August 2007| volume=274| issue=1621| pages=1955–1961| doi=10.1098/rspb.2007.0558| pmid=17567563| pmc=2275182}}</ref><ref>Edmunds, 1974. Page 112.</ref>
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A second form of mimicry occurs when two aposematic organisms share the same [[anti-predator adaptation]] and mimic each other, to the benefit of both species, since fewer individuals of either species need to be attacked for predators to learn to avoid both of them. This form of mimicry is known as [[Müllerian mimicry]], after [[Fritz Müller]], a German naturalist who studied the phenomenon in the [[Amazon Basin|Amazon]] in the late 19th century.<ref>{{cite journal | last1=Müller | first1=Fritz | year=1878 | title=Ueber die Vortheile der Mimicry bei Schmetterlingen | journal=Zoologischer Anzeiger | volume=1 | pages=54–55 }}</ref><ref>{{cite journal | last1=Müller | first1=F. | year=1879 | title=Ituna'' and ''Thyridia''; a remarkable case of mimicry in butterflies. (R. Meldola translation) | journal=Proclamations of the Entomological Society of London | volume=1879 | issue=| pages=20–29 }}</ref> Many species of bee and wasp that occur together are Müllerian mimics; their similar colouration teaches predators that a striped pattern is associated with being stung. Therefore, a predator which has had a negative experience with any such species will likely avoid any that resemble it in the future. Müllerian mimicry is found in vertebrates such as the mimic poison frog (''[[Ranitomeya imitator]]'') which has several morphs throughout its natural geographical range, each of which looks very similar to a different species of poison frog which lives in that area.<ref>{{cite web |last1=Twomey |first1=Evan |last2=Brown |first2=Jason |title=Ranitomeya imitator |url=http://www.dendrobates.org/imitator.html |publisher=Dendrobates.org |accessdate=11 May 2015 |date=1986}}</ref>
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