Concept information
Preferred term
evolutionary trend
Definition
- An evolutionary trend can be either directional change within a single lineage or parallel change across lineages, in other words, several lineages undergoing the same sort of change. However, not just any change counts as a trend. After all, if the weather gets warmer one day, you wouldn’t call it a warming trend; warming would have to go on for some length of time before you’d call it a trend. Biologists think about evolutionary trends in the same way — there has to be something about the change that suggests that it’s not just a random fluctuation before it counts as a “trend.” (Adapted from: https://evolution.berkeley.edu/evolution-101/the-big-issues/trends-in-evolution/)
Broader concept
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/QX8-H6GNTQ80-Q
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