This article is a good article explaining how the founder effects affect genetic drift. An example of a bottleneck effect: Northern elephant seals have reduced genetic variation most likely due to being hunted. Hunting reduced their population size to as few as 20 individuals at the end if the 19th century.
Most crewed yacht charters are all inclusive, ranging from $15,000 to $50,000 per week. At Carefree Yacht Charters we will help find the perfect charter within your budget. View our cost table to learn more about crewed yacht charter costs.
1 Onboard activities include lectures on the area's plant and animal life.  Alaska 10-14 day roundtrip cruises are priced about $1,100-$2,300 per person, double occupancy for an interior room, depending on sailing date, choice of stateroom and cruise line. Cabins with an ocean view are priced $1,800-$2,200, balcony rooms $1,800-$4,400 and suites $4,500-$6,200, per person. Princess Cruises offers a 14-day cruise that starts in Vancouver, then after Alaska, heads south along the west coast to Los Angeles for about $1,600 per person, double occupancy.