Flower choices by raspberry beetles: cues for feeding and oviposition

Article Abstract:

Research was conducted to examine how raspberry beetles, or Byturus tomentosus, choose between flowers of different cultivars. They generally use raspberry as their host plant for feeding, mating and oviposition while the fruits serve as targets for larval infestation. Results demonstrate that B. tomentosus feed on Glen Clova canes in the morning and feed on Glen Prosen later in the day until the evening. Once it is dark, the beetles leave to return again towards dawn.

Raspberries, Beetles, Host plants

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Feeding behaviour of cod, Gadus morhua: activity rhythm and chemically mediated food search

Article Abstract:

The feeding behavior of cod, Gadus morhua, was studied via a stationary positioning system. A change in hunting strategy and the proportion of active prey were proposed to explain the observed rhythmicity in the feeding behavior. Moreover, the fluctuation of the diurnal rhythm in the occupied area was greater compared to the swimming rhythm, suggesting that the periodicity may be affected by other factors aside from diel light cycle.

Usage, Behavior, Radio transmitters, Codfish, Codfishes

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