Bottleneck events can cause a reduction in genetic diversity, which may persist even as the population grows again. Inbreeding can also occur more frequently in small populations, which leads to a reduction in genetic variation. Additionally, there may be a lack of suitable mates in small populations, which further limits genetic diversity. This reduction in genetic diversity can result in less advantageous traits and higher susceptibility to genetic disorders. Therefore, all of the options given in the answer are correct.