What can sexual dimorphism influence in a species?

What can sexual dimorphism influence in a species?

• A. Resource allocation
• B. Mating preferences
• C. Predation rates
• D. Habitat selection

Answer: (B)

Sexual dimorphism refers to the differences in physical characteristics between males and females of the same species. This variation can significantly influence mating preferences as individuals often select mates based on these traits. For example, in many species, males display vibrant colors, larger body sizes, or elaborate courtship behaviors that females may prefer when selecting a partner. These preferences can drive sexual selection, impacting which individuals reproduce and pass on their genes to the next generation. While sexual dimorphism could potentially have indirect effects on resource allocation, predation rates, and habitat selection, its most direct and pronounced influence is on mating preferences. Mating preferences shaped by sexual dimorphism lead to the evolution of specific traits that further enhance reproductive success within the species.

Sexual dimorphism refers to the differences in physical characteristics between males and females of the same species. This variation can significantly influence mating preferences as individuals often select mates based on these traits. For example, in many species, males display vibrant colors, larger body sizes, or elaborate courtship behaviors that females may prefer when selecting a partner. These preferences can drive sexual selection, impacting which individuals reproduce and pass on their genes to the next generation.

While sexual dimorphism could potentially have indirect effects on resource allocation, predation rates, and habitat selection, its most direct and pronounced influence is on mating preferences. Mating preferences shaped by sexual dimorphism lead to the evolution of specific traits that further enhance reproductive success within the species.