. Bonner zoologische Monographien. Zoology. 128. Fig. 11: Naive bumble bee approaching an artificial flower. The approach is precisely directed towards the dummy anthers in a manner that each antennal tip makes contact with a dummy theca. ning speed and learning capacity in relation to different colours, as has been demonstrated for the honeybee. Apis meUifera (Menzel 1979). Naive bumble bees, for example, possess a neurosensory filtering mechanism (sensu Wehner 1981) tuned to a common colour pattern of bee-visited angiosperm flowers. In behavioural experiments individuals, which are inexperie
. Bonner zoologische Monographien. Zoology. 128. Fig. 11: Naive bumble bee approaching an artificial flower. The approach is precisely directed towards the dummy anthers in a manner that each antennal tip makes contact with a dummy theca. ning speed and learning capacity in relation to different colours, as has been demonstrated for the honeybee. Apis meUifera (Menzel 1979). Naive bumble bees, for example, possess a neurosensory filtering mechanism (sensu Wehner 1981) tuned to a common colour pattern of bee-visited angiosperm flowers. In behavioural experiments individuals, which are inexperienced with flowers and not pretrained, are attracted by a distinct set of colour signals emitted by model flowers. They make contact with their antennal tips at visual stamen signals of dummy flowers preceding landing (Fig. 11). Beside the shape of anther dummies, the colour purity of the anther dummies and their colour contrasts with the sur- rounding corolla efficiently released the antennal reaction (Lunau 1991; Lunau et al. 1996). In natural flowers, the signal components releasing the antennal response of naive bumble bees, are displayed by conspicuous and UV-absorbing yellow stamens of pollen flowers and colourful stamen mimics of flowers in which the stamens are concealed in the flower (Fig. 5) (Lunau 2000). Synecological approach For Gerd von Wahlert, the key to understanding evolution is a synecological approach integrating anagenesis, self-layering processes, co-evolution, and other phenomena. In his article about evolution as history of the ecosystem "biosphere". Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
