{"id":1415,"date":"2018-04-03T13:27:56","date_gmt":"2018-04-03T13:27:56","guid":{"rendered":"http:\/\/laorquideadedarwin.com\/?p=1415"},"modified":"2018-06-07T08:24:33","modified_gmt":"2018-06-07T08:24:33","slug":"leditorial-lorquidia-de-darwin","status":"publish","type":"post","link":"https:\/\/laorquideadedarwin.com\/va\/leditorial-lorquidia-de-darwin\/","title":{"rendered":"L’editorial l’Orqu\u00eddia de Darwin"},"content":{"rendered":"

L’origen<\/h2>\n

El nom de l’editorial t\u00e9 el seu origen en un llarga hist\u00f2ria. Una hist\u00f2ria de pr\u00e0cticament 200 anys que sempre m’ha fet que pensar. Aquesta hist\u00f2ria comen\u00e7a fa molt temps. En 1822 el bot\u00e0nic franc\u00e9s Louis Marie Aubert du Petit-Thouars (1758-1831) va descobrir a Madagascar una meravellosa orqu\u00eddia, la Angraecum sesquipedale<\/em> Thouars, 1822.<\/p>\n

\"\"

Imatges. 1) Coberta del llibre sobre les orqu\u00eddies de Darwin, primera edici\u00f3 1862. Foto fons bibliogr\u00e0fic de Natura i Cultura. 2) Gravat de Angraecum sesquipedale de l’any 1897, en commons.wikimedia.org<\/p><\/div>\n

Uns anys m\u00e9s tard, Charles Darwin<\/strong> (1809-1882) publica el llibre Sobre l’Origen de les Esp\u00e8cies<\/strong> (1859). El llibre era un resum, com ell deia, de la seua teoria sobre la selecci\u00f3 natural per a explicar l’evoluci\u00f3 de les esp\u00e8cies. En els anys successius Darwin va treballar en diferents disciplines, entre elles la bot\u00e0nica, per a explicar i justificar els seus plantejaments sobre com es produeix l’evoluci\u00f3. Tenia una xarxa molt gran de contactes. Cient\u00edfics, criadors de coloms\u2026 Un conreador d’orqu\u00eddies de la Royal Society de Londres que coneixia el seu treball, li va enviar una caixa amb orqu\u00eddies. Entre elles, hi havia una que va despertar l’inter\u00e8s de Darwin de forma particular. Era l’orqu\u00eddia de nadal, estel de Bel\u00e9n o m\u00e9s coneguda ara com a orqu\u00eddia de Darwin<\/strong>, la Angraecum<\/em>. Li va cridar l’atenci\u00f3 el llargu\u00edsim nectari, l\u2019espol\u00f3 de 25-30 cm. Fent \u00fas de la l\u00f2gica cient\u00edfica, en el seu llibre On the various contrivances by whitch british and foreign ochids llaure fertilised by insects, publicat al gener de 1862, i basant-se en els processos de co-evoluci\u00f3 entre orqu\u00eddies i insectes, va predir que hi hauria una papallona esfinx amb una espiritrompa de la longitud de lespol\u00f3. Doncs hauria d’arribar al final del mateix per a prendre el n\u00e8ctar. Quan Darwin va publicar el llibre no es tenia cap refer\u00e8ncia de l’exist\u00e8ncia de l’arna. La idea va ser recolzada per A.R. Wallace, l’altre pare de la teoria de la selecci\u00f3 natural, en un article de 1867.<\/p>\n

A Madagascar, l’any 1903, es va trobar una arna amb una espiritrompa d’uns 30 cm.
\nSe li va cridar Xanthopan morganii praedicta<\/em>. \u201cPredita\u201d en refer\u00e8ncia al plantejat per Darwin. Per\u00f2, era aquesta la papallona que libaba el n\u00e8ctar de l’orqu\u00eddia de Darwin? Doncs s\u00ed, per\u00f2 es van necessitar altres noranta anys fins que es va aconseguir veure a l’arna libar en la flor.<\/p>\n

 <\/p>\n

\"\"

Image. Xanthopan morgani praedicta. Natural History Museum of London, commons.wikimedia.org<\/p><\/div>\n

La curiositat i el coneixement<\/h3>\n

Aquesta \u00e9s una hist\u00f2ria que sempre m’ha agradat, com la hist\u00f2ria de Charles Darwin. Amb una base s\u00f2lida de coneixement, amb un bon m\u00e8tode com \u00e9s la ci\u00e8ncia, podem descobrir les meravelles de la naturalesa i de nosaltres mateixos. La natura no oculta gens, tot ho tenim davant els nostres ulls. Nom\u00e9s hem de tenir curiositat, fer-nos preguntes, observar i pensar. Darwin va veure alguna cosa \u201coculta\u201d a moltes persones, si aprenem a mirar podem veure m\u00e9s enll\u00e0 de l’evident.<\/p>\n

La nostra editorial, cada hist\u00f2ria, com l’orqu\u00eddia de Darwin, tanca secrets que amb inter\u00e8s i curiositat, mitjan\u00e7ant la lectura podran descobrir i interioritzar. S\u00f3n hist\u00f2ries que parlen al fons del nostre intel\u00b7lecte. I els xiquets i xiquetes saben escoltar.<\/p>\n

NOTA: Pots veure v\u00eddeos de l’orqu\u00eddia, la papallona i la seua llarga espiritrompa, la demostraci\u00f3 que la predicci\u00f3 de Darwin era correcta, en els seg\u00fcents enlla\u00e7os:<\/p>\n

https:\/\/www.youtube.com\/watch?v=mA7Gdlju7Fo<\/a><\/p>\n

https:\/\/www.youtube.com\/watch?v=iMz6lApJgu4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

L’origen El nom de l’editorial t\u00e9 el seu origen en un llarga hist\u00f2ria. 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