Biotime or biological time runs at a very different pace or rhythm to human time. It can be observed by recording events in the natural world. These can be as varied as the day the first spring bulb opens, the last frost before summer, or the first sighting of a species of bird or insect in a new habitat. These events can be part of a larger natural rhythm, like the turning of the seasons, or an indicator of slow changes in an ecosystem, like changing average temperatures or unusual weather patterns.
Gardeners find documenting weather events, especially the first hard frost of the year, very useful. It helps them plan their planting and alerts them to the need to protect crops. Nature watchers too like to compare notes year on year to record natural rhythms like the migration times of birds and unusual events. On a larger scale, we can also reflect on our own biological rhythms relating to the waxing and waning of the moon or the seasons. The Biotime Log provides a sound introduction to biome and how to keep a log. It is also a ready-made book that will last for years in which to note your observations. Two days are allocated to each page in a month-by-month annual cycle. There are no years. This allows you to record events by adding the year at the beginning of each log. Over time you will build a picture and be able to look back year on year to compare the many aspects of your observations. Create your own fascinating record of your local natural world and its rhythms.