Reference no: EM132934663
For the following paragraphs, condense them into one paragraph and try to summarize with the key points
Assumption A- (only flies evolved the traits) If we deny coevolution through reciprocal selection, the only other explanation is that predators (flies) are the selective agents driving proboscis elongation. The proboscis and tube length ranges of the two groups tested did not differ. M. longirostris proboscis length, for example, well outstripped L. anceps tube length, causing all caught flies to enter the bottom of all L. anceps flower tubes at this location. Darwin's system does not work since the plant species cannot differentially compensate longer proboscid individuals in the pollinator population. Both sites may be coevolutionary coldspots with no choice for M. longirostris or L. anceps, or they may be one-sided selection for longer tubes. This result can be verified by repeating the selection experiment in these potential coldspots.
Assumption B- (only flowers evolved the traits) Since long-proboscid pollinator species can easily reach shorter tubed flowers and thereby act as a novel selective force on them, the Pollinator Transformation Model of floral tube length evolution indicates that plant species are more likely to migrate to longer-proboscid pollinator species than shorter-proboscid pollinator species.
Assumption C- (both flies and flowers mutually evolved traits to benefit them) The disproportionate elongation of nectar tubes and proboscides is the most prominent of these features. The authors showed how this process decides mutualistic group membership: plant species with shorter tubes are unable to mutualize with long-proboscid flies, and insects with shorter proboscides are unable to enter the long-tubed plant guild's tightly concealed nectar. As a result, the findings indicate that reciprocal selection of proboscis and tube length was significant in the mutualist community's evolution.
Commensalism can be seen in Assumptions A and B (defined as a symbiotic relationship in which one species profit while the other is unaffected).
Assumption C. exemplifies mutual coevolution and/or reciprocal selection (as discussed in the first paragraph). This research demonstrated mutualism, which is a symbiotic relationship in which two disparate animals, the fly and the vine, benefit from each other.
As a consequence, the authors' theory proved right.
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