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VAI MEDUSBITES ATPAZĪST KRĀSAS UN KĀPĒC?
8, 2005, 15:21mailer
:-:

    Ar redzi bites uztver krāsu un formu. Bites redzamā spektra daļa ir robežās no ~300 līdz ~650 nm. Salīdzinājumam – cilvēki redz gaismas viļņus no 380 līdz 770 nm. Bites, atšķirībā no cilvēkiem, redz ultravieoleto gaismu. Formas un attēla veidošanos bišu smadzenēs grūti iztēloties, ja to aplūko no cilvēka viedokļa. Bites galvenās acis – fascetacis – ir saliktas, un kopattēlu, iespējams, veido kā mozaīku. Vēl bitei ir trīs vienkāršās acis, kas sakārtotas trīstūrveidā pieres daļā.

    Atgriežoties stropā vai lidojot ganībās, bez šaubām, galvenais orientieris ir apvidus ainava, tad vēl stropa krāsa, saimes smarža, kā arī stropa atrašanās vieta attiecībā pret sauli un ganībām.

    Izmantotā literatūra:

    • Andrejs Mizis, 2003; Darbi bišu dravā, Avots
    • Ziedonis Ritmanis, 1992; Bišu ceļi, Zvaigzne
    21, 2005, 12:39Zirneklītis

    Bites atšķir polarizētu gaismu no nepolarizētas. Polarizēto gaismu redz un izmanto orientācijai ne tikai bites, bet arī visi kukaiņi un to kāpuri, vēžveidīgie un zirnekļveidīgie.
    25, 2005, 14:51Fiziķis
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