Second Generation of Leaf Cutter Bees - 6 July 2020

Now that we have significant bee activity at our Gilbert Site1a2h, we will be monitoring the progress as they fill the habitat tubes.

We are seeing significant evidence of a second generation of bees as evidenced by circular holes from previously filled nests:

Evidence of Emergence of A Second Generation at Site1a2h Habitat 2

We also see this in the mud filled nests which we think are blue orchard bees (BOBs) from our project last year.

Evidence of Emergence From A Mud Filled Nest at Site1a2h Habitat 3

We counted roughly 33 nests with an emergence. This is about 10% of the current count of 316 nests:

Leaf Cutter Bee Status as of 6 July 2020 - Table

Leaf Cutter Bee Status as of 6 July 2020 - Graph

We continue to observe a low level of bees flying to and from the habitats.