Cumulative GBS species

To: COG List <>
Subject: Cumulative GBS species
From: Martin Butterfield <>
Date: Mon, 30 Oct 2017 01:39:42 +0000
One of my small games with my GBS records is to track the cumulative number of species seen GBS-year to date.  

This year started off slowly and fell further behind the 10 year average until it was nearly 9 species behind by early September.  Since then the additional species have poured in and I'm now 2 species ahead of the average (with lots of previously seen species to add).  

I have graphed the two series starting with week (starting week 32 to avoid any complications caused by variations in the timing and duration of our Winter absences).

I usually end up with 75 - 80 species for a year.  This year with an ounce of luck, a pound of axle grease and reasonable rainfall​ I could expect as many as 85 species.

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