Evolution
Charles Darwin gave what could be described as a loose definition of evolution when he wrote “descent with modification” (Darwin, 1859). Evolution is defined more specifically as a change in the genetic composition of a population, from generation to generation (Reece et al., 2011). In this investigation into coevolution, in particular plant-animal coevolution, the adaptations and reasons for these adaptations in a specific example of plant-animal coevolution will be highlighted.
Coevolution
Coevolution is when two species that interact together evolve due to selection imposed by each other (Reece et al., 2011). Coevolution may occur where symbiosis between two species exists (Currie et al., 2003). This symbiosis …show more content…
the number of bracts they produced. The fact that on Saint Lucia there was only one form of H. caribaea and two forms of H. bihai and that the opposite was true on Dominica allowed the relationship between these plants and their pollinator, Eulampis jugularis, to be clarified. In summary the long, curved billed female leads to the selection of the Heliconia plant with long, curved flowers and vice-versa and the shorter, less curved billed male leads to the selection of the Heliconia plant with shorter, less curved flowers and vice-versa. Coevolution is common in symbiotic relationships between plants and animals and can even result in differences between the male and female in the same …show more content…
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