Evolutionary responses to global change: lessons from invasive species

Area of Science:

• Evolutionary biology
• Ecology
• Environmental science

Background:

• Growing interest in rapid evolution's role in species' environmental adaptation.
• Uncertainty remains regarding the rates and predictability of evolutionary responses to global change.
• Biological invasions present parallels to species adapting to global change, facing novel selection pressures.

Purpose of the Study:

• To review the utility of invasive species as models for evolutionary responses to global change.
• To identify the limitations and constraints of using invasive species to predict evolutionary change.
• To outline future research directions for understanding adaptive evolution.

Main Methods:

• Literature review and synthesis of existing research on biological invasions and evolutionary responses.
• Comparative analysis of ecological and evolutionary dynamics in native and invasive populations.
• Conceptual framework development for assessing evolutionary potential under environmental change.

Main Results:

• Invasive species demonstrate rapid evolutionary adaptation to novel environments, mirroring responses to global change.
• The analogy between invasive and global change responses is useful but imperfect; invasive species represent an upper limit on evolutionary rates.
• Key constraints on evolutionary responses include genetic variation, generation time, and population size.

Conclusions:

• Invasive species offer valuable, albeit bounded, insights into evolutionary adaptation.
• Further research is needed to refine models of evolutionary rescue and predict species' long-term persistence.
• Understanding evolutionary constraints is crucial for conservation and managing global environmental change.