Around that time, I began to read snippets in the news about a growing mismatch between biological events of pollinators and their favorite host plants. This was referred to as phenological mismatch. (See definition below). The general hypothesis is that climate change is contributing to this phenomenon, and related scientific research is being conducted worldwide.
The main theory is that the plant, like my Nepeta, uses mean daily temperature as its phenological cue to break dormancy and flower, while the pollinator, like my bumbles, uses day length. If these two species depend on their interaction with one another for pollination and food, the changing environment means they may end up missing each other entirely. Of course, an occasional occurrence of early spring isn’t going to decimate bumblebees. But if this is a permanent shift….
Because I love my garden and the birds, butterflies, and bees that occupy it, I worry. I worry enough that I included a reference to phenological mismatch early in my book, Guardians of Grace, as one of the subtle clues of climate chaos to come.
Of course, my characters don’t know this. They, like me, are just wondering why the Nepeta is blooming so early, and why the bumblebees are missing out on the nectar.
According to a quick internet search, Phenology is the study of the timing of the biological events in plants and animals such as flowering, leafing, hibernation, reproduction, and migration. Scientists who study phenology are interested in the timing of such biological events in relation to changes in season and climate.