Some eastem North American populations of apple maggot (Rhagoletis pomonella) have shifted hosts from the downy hawthom (Crataegus mollis) to eastern apple(Malus pumila) which were introduced within the last 130 years. Given the seasonal timing of fruit development of both eastern apple and downy hawthorn (see imagebelow, from Hood, et al., 2019), what statement best describes the evolutionary pattems observed in apple maggots?Eastern apple(EA)NativerangeJuneJulyDowny hawthom(DH)August September OctoberO The average timing of apple maggot seasonal mating and egg laying is expected to occur earlier in the yearO Allopetric processes are responsible for divergence between apple maggot populations preferentially mating on eastern apple vs downy hawthornPopulations of mapple maggot are in Hardy Weinbery EquilibriumEastern apples and downy hawthorns should be considered a single species based on apple maggot mating preferencesO Apple maggot should be considered two species based on the biological species conceptexcept:1 pointsSave Answer1 points Saved

Name: Some eastem North American populations of apple maggot (Rhagoletis po
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: Some eastem North American populations of apple maggot (Rhagoletis pomonella) have shifted hosts from the downy hawthom (Crataegus mollis) to eastern apple(Malus pumila) which were introduced within the last 130 years. Given the seasonal timing of f

The process of formation of new species is referred as speciation. Speciation occurs with the help of different phenomena. Based upon these phenomena, there are mainly four types of speciation that are allopatric, parapatric, peripatric and sympatric speciation. Some population of apple maggots have shifted hosts from the downy hawthorn to eastern apple. Here, different populations of apple maggot lives in the same area. The time is acting as a barrier for breeding in different populations of apple maggot, thus, temporal isolation is acting. Hence, the apple maggots are sympatric species because there is no physical barrier present between different populations of apple maggots. But here, reproductive isolation is present. The newly formed population of apple maggot is still living with the ancestral population but it gets isolated because of reproductive isolation, time, behavior and preference level. Hence, the statement that best describes the evolutionary patterns observed in apple maggots is - Apple maggot should be considered two species based on the biological species concept.