Zoology journals have relatively low impact factors, compared to other fields, even in Q1. My guess is that researchers are staring themselves blind on impact factors when selecting journals to publish in, and rather choose non-selective mega journals with IF > 3 (e.g. PLoS ONE, Scientific Reports) than a respected zoology journal. So, perhaps many high impact papers may end up in these mega journals instead of in the zoology specialists...
Zoology journals have relatively low impact factors, compared to other fields, even in Q1. My guess is that researchers are staring themselves blind on impact factors when selecting journals to publish in, and rather choose non-selective mega journals with IF > 3 (e.g. PLoS ONE, Scientific Reports) than a respected zoology journal. So, perhaps many high impact papers may end up in these mega journals instead of in the zoology specialists...
As an example, Scientific Reports is a non-selective journal with IF > 5! This, of course looks good, but the prestige is much lower than for Q1 Zoology journals (at least it should be, it is more difficult to get published in the Q1 Zoology). The fact that people THINK Sci Rep is prestigious is evident by the frequent usage of the erroneous title "Nature Scientific Reports" (its published by Nature Publishing Group, but not part of the Nature brand).