Re: [beemonitoring] Cavity vs. Ground-nesting bees?
- Joel: Jim Cane and I came up with an estimate of 64% ground nesting (55% for all bees, including parasitics) for our 2011 paper in Biological Conservation 144: 2631-2636. Attached is the appendix with a breakdown by family. Our estimate for the Megachilidae was 16.8% (excluding parasitics). Perhaps this will give you something to cite. The paper also includes an analysis of published nest depths of ground nesting bees.bestJackJohn L. Neff
Central Texas Melittological Institute
7307 Running Rope
Austin,TX 78731 USA
From: Joel Gardner <gard0228@...>
Sent: Friday, September 7, 2012 2:57 PM
Subject: [beemonitoring] Cavity vs. Ground-nesting bees?
I've seen it reported in a lot of non-scholarly publications that about 30% of bees are aboveground cavity-nesting and 70% are ground-nesting. I've even parroted this figure on occasion when talking about wild bees to people. But while trying to find a source for it, I realized I can't find a single instance where this figure has a citation. Does anyone know where this figure comes from? Have any relevant journal articles? I'm particularly interested in how Megachilidae fits into this supposed 30-70 division.Joel Gardner