‼️These #PSMC #peaks are #artifacts‼️
Seen #PSMC results like this🤔?
They are caused by ill-set parameters, #very #common, and #easy #to #solve!
For details see 🧵& OA paper @currentbiology.bsky.social
🙂🐢🧬🎉!
https://cell.com/current-biology/fulltext/S0960-9822(24)01239-9
Seen #PSMC results like this🤔?
They are caused by ill-set parameters, #very #common, and #easy #to #solve!
For details see 🧵& OA paper @currentbiology.bsky.social
🙂🐢🧬🎉!
https://cell.com/current-biology/fulltext/S0960-9822(24)01239-9
Comments
- colonization of new habitats🌿🌱
- climate induced changes of habitat suitability📈📉
- human effects 🧍🧍🧍
Might these peaks reflect true changes in Ne?🤔
The answer is: NO! 🔴
Even if a population underwent the population peak that we infer from our data (top blue = bottom black), simulations show that we would not be able to infer it (bottom red).
What causes these peaks?🤔
Increases in population structure before a collapse CAN cause similar patterns... however, it is unlikely that this is so common and always occurs in the second time window (Supplement).
‼️False parameter settings‼️
Changing parameter settings from -p 4+(...) used as default to -p 2+2+(...) removes the peaks in all of our turtle data 🤯