Sexual selection and speciation in the Anthropocene

Area of Science:

• Evolutionary biology
• Ecology
• Conservation science

Background:

• Anthropogenic change poses a significant threat to global biodiversity, leading to ecological disturbance and species extinction.
• Sexual selection, a crucial evolutionary force driving speciation, is sensitive to environmental conditions and thus vulnerable to human-induced alterations.
• Environmental changes can impact sexual displays and mate preferences, potentially blurring species boundaries and increasing hybridization rates.

Purpose of the Study:

• To examine the effects of anthropogenic change on sexual selection as a generator of biodiversity.
• To assess how environmental alterations influence mate recognition and sexual divergence.
• To understand the implications of altered sexual selection for speciation and biodiversity loss.

Main Methods:

• Conceptual analysis integrating ecological and evolutionary principles.
• Review of existing literature on sexual selection and anthropogenic impacts.
• Theoretical modeling of mate choice and speciation under environmental change.

Main Results:

• Anthropogenic alterations to sexual selection can impair species recognition, leading to increased hybridization.
• Weakened sexual selection divergence can result in biodiversity loss.
• While rare, anthropogenically altered sexual selection may occasionally promote diversification, but biodiversity loss is the more probable outcome.

Conclusions:

• Anthropogenic change significantly impacts sexual selection, a critical driver of biodiversity.
• Altered sexual selection processes pose a substantial risk of increased hybridization and biodiversity loss.
• A global change perspective is essential for understanding sexual selection and speciation in contemporary ecosystems.