Orientation of the entrances

In “The nest of the honeybee” in 1976, Tom Seeley describes a random alignment of the entrances in tree caves inhabited by bees. Unfortunately, he does not give data on the alignment of uninhabited tree caves in the region. It is therefore not possible to verify whether the bees prefer a certain direction for the entrances of their tree caves or not.

Alignment of the cave openings
Orientation of entrances in “The nest of the honeybee”, 1976

Comparison with two studies of natural hollows in general in our latitudes suggests that its description is correct. In these studies, the orientations of all cave entrances are documented, irrespective of whether and by whom they are inhabited.

Alignment of the cave openings
Orientation of entrances in “Höhlenbäume im urbanen Raum”, Umweltamt Stadt Frankfurt, 2013
Alignment of the cave openings
Orientation of entrances in “Studien an Baumhöhlen in der Steiermark”, Wolf Sixl, 1969

All three regions are situated in the western wind zone and have a similar climate. The percentage distribution of the cave entrances is almost the same in all three regions. Obviously, the bees do not prefer a certain orientation of the entrance hole.