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Habitat fragmentation and environmental change threaten self-incompatible plant species that require high mate availability for survival, necessitating various rescue strategies.
A study using a model over 500 years found that genetic rescue is the most effective method for enhancing fitness and viability of small plant populations, while demographic rescue also shows considerable benefits.
Combining genetic rescue with habitat improvements provided the best outcomes, enhancing both population persistence and mate availability significantly, particularly with the addition of new genetic diversity (S alleles).