After the nesting site inventories, a transect inventory are done in a square around the nesting areas, the transects are 20m long and the corners of the square are selected using a GPS.
Last but not least we search the area around the nesting sites for 15 minutes, effective time, in hope to find some bees. The bees that are found are noted either with the species name or with an ID:number for later identification.
When conducting our inventories we are using standardized methodology used by SLU, where the weather can’t be too windy or too cold. The transects also was to be walked in a set tempo 4 min/100 m. During our inventories we also note the flower coverage, vegetation height and if there are other factors we might need to think about. Other hymenopterans, predators as birds/spiders and parasites in the area present near the sites are also noted. We also note if the nesting areas differs, if the sand is compact or not, if there is mold in the hotels or if there is some other type of damage.
Luckily everything went smoothly this time and all nesting sites looked fine! Now we look forward for our next visit in June.
Bee good! /Oskar and Hampus