. Bonn zoological bulletin. Zoology. Fitness components in the relationship between Rhopalapion longirostre and Alcea rosea 57. Fig. 1. Brief outline of life history stages of the weevil Rhopalapion longirostre on its host plant, Alcea rosea. Schema showing various conditions of a seed capsule: seed chambers with 1) fully developed seeds, 2) seeds infested with larvae, 3) pupae and clo- sed escape holes, 4) not emerged adults and closed escape holes, 5) escape holes, 6) spoiled seeds, 7) undeveloped seeds. Abbre- viations of infested bud: b bore channel, o ovules, p pollen, s sepal; sc seed ch
. Bonn zoological bulletin. Zoology. Fitness components in the relationship between Rhopalapion longirostre and Alcea rosea 57. Fig. 1. Brief outline of life history stages of the weevil Rhopalapion longirostre on its host plant, Alcea rosea. Schema showing various conditions of a seed capsule: seed chambers with 1) fully developed seeds, 2) seeds infested with larvae, 3) pupae and clo- sed escape holes, 4) not emerged adults and closed escape holes, 5) escape holes, 6) spoiled seeds, 7) undeveloped seeds. Abbre- viations of infested bud: b bore channel, o ovules, p pollen, s sepal; sc seed chamber. The diameter of each capsule was measured 5 times to cancel out error. The number of dry seeds per capsule and the condition of every capsule were documented. The seed chambers were opened under a dissecting microscope to determine the inner condition. The infested condition was indicated by the presence of larvae, pupae or not emerged adults, or empty seed chambers with open escape holes. The uninfested condition was indicated by the presence of seed chambers which are fully developed, undeveloped or spoiled. In the following, the data were analyzed thor- oughly by multivariate statistics to estimate the importance of animal and plant related factors and their interactions on the reproductive fitness of weevil and plant. For the following case study nine character variables of the seed capsules were measured for the statistical analy- ses. Diameter of capsules in mm: diam (plant related: PR) Number of seed chambers per capsule: nrsc (PR) Bonn zoological Bulletin 57 (1): 55-64 Number of open beetle escape holes per capsule: nreh (an- imal related: AR), estimate of the number of beetles which have successfully escaped. Number of dead larvae per capsule: nrla (AR) Number of dead pupae per capsule: nrpu (AR) Number of dead, not emerged adults per capsule: nrne (AR) Number of fully developed seeds per capsule: nrds (PR) Number of undeveloped seeds per capsule: nrus (PR)
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