The extent of migration among populations drives population structure. With enough migration, populations become homogeneous and behave as a single larger population. As migration rates decrease, populations drift apart and become differentiated. By measuring the amount of differentiation, we can determine the extent of migration between them. But what happens when there are unsampled populations also exchanging migrants?
If you ever find yourself pulling in a hand-deployed longline in murky water and the line gets heavy all of a sudden, the best thing to do is not to get on your knees and pull as hard as you can while leaning slightly overboard. Even though you might think the line is merely caught … Read More “Thoughts on an “oopsie”” »

