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Manual dos Polinizadores das Orquídeas Europeias

Manual dos Polinizadores das Orquídeas Europeias

José Lara Ruiz

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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Ciencia: cuestiones generales
ISBN:
9786209067679
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As formas de atração dos polinizadores pelas orquídeas são variadas e, por vezes, como no género Ophrys, espectaculares. Elas podem ser agrupadas em 3 grupos: 1) a oferta de alimento (néctar), 2) o engano visual (espécies que simulam nectaríferos) e 3) o engano sexual.Dentro do terceiro grupo, o engano sexual atinge a sua forma mais perfeita no génerogénero Ophrys. As flores imitam as fêmeas virgens de certos himenópteros.Os zangões destes himenópteros tentam copular com as flores (pseudocópula) e polinizam-nas durante o processo. A flor imita a forma do inseto fêmea (mimetismo visual) e emite uma mistura de compostos que simulam as feromonas das fêmeas em cio (mimetismo químico).

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