[Archive – 22-04-2023]
During the early weeks of butterfly season, the most important plant in my area is the dandelion. Even during the drought of 2022, the vast majority of butterflies almost exclusively relied on dandelions, ignoring any other source of fresh nectar. While I still need more data, there has been a consistent drop in butterflies the moment the first batch of dandelions gets removed, with no species present prior to the mowing, minus A. cardamines, fully recovering and the others starting their respective seasons near the end of May avoiding the regrowing dandelions. Why those blooming after mid-May are being avoided even by most bees is something I'll try to analyze in the next season.
To my own surprise, the species most dependent on dandelions appears to be Gonepteryx rhamni. Usually classified as "common", it actually is among the rarer species to encounter in my area, so far always having disappeared the moment my municipality starts its mowing routine that turns the meadow in front of my home into a hideous lawn with plenty of fully bare spots. Despite this, the amount of individuals appears to be increasing at a slow but steady pace – we went from exactly 0 up to 2022 to roughly a dozen adults in 2024.
#lepidoptera #butterfly #commonbrimstone #germany #canoneos700d