Divorce, Warbler Style

I found this interesting. Some birds divorce. Take Seychelles warblers for example. The reason they divorce is rain. The warblers divorce more when it rains too little or too much. So I presume that means stress. 

Key Findings:

Rainfall and divorce: The study identified a quadratic relationship between rainfall and divorce rates, with the highest rates of divorce occurring in years with either extremely low or high rainfall during the breeding season. 

The 1997 El Niño effect: An extreme rainfall event in 1997 was a significant outlier in the data, with exceptionally high rainfall correlating with a sharp increase in divorce rates. When this event was excluded from the analysis, a clearer negative relationship between rainfall and divorce emerged. 

Reproductive success: Despite rainfall impacting divorce rates, the study found no direct link between reproductive success (i.e., the number of offspring produced) and the likelihood of divorce, suggesting that other, as yet unidentified factors may be influencing partnership stability.