Ceratina calcarata
In 3 days ~10% in a week ~20%
Ceratina calcarata, the spurred ceratina, is a species of small carpenter bee in the family Apidae. It is found in eastern North America. This species ranges from Georgia, USA north to Ontario, Canada and east to Nova Scotia, Canada. This bee is a common generalist, native pollinator, it pollinates plants like watermelon and cucumber very effectively. C. calcarata adds to the productivity of a wide range of ecological and agricultural systems due to its wide range and abundance. This small bee is becoming a model organism in the scientific research of social evolution. C. calcarata is the first subsocial bee species to have its genome published, allowing researchers to investigate the evolutionary origins of social behaviour.
Male eggs are laid on provision masses that are smaller than those that female eggs are laid on. Based on the size of the mother's provision masses, there is a positive association between her size and her foraging capabilities; however, more daughters are not produced by larger mothers as it might be assumed. Larger offspring are more beneficial for C. calcarata because the progeny are more likely to survive the winter months, resulting in... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 3 | Baltimore | 🇺🇸 United States | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | Montreal | 🇨🇦 Canada | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | Washington | 🇺🇸 United States | |
| 8 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Spurred Ceratina sighting in Baltimore on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 421st most-seen of the 705 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August
In that month about 10% of wildlife watchers report a Spurred Ceratina in Baltimore on a given day, against under 5% in September to July, the lowest months.
Among the best
Of the 8 cities where we can rate Spurred Ceratina sightings, Baltimore ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%) and Minneapolis [Saint Paul] (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Spurred Ceratina is recorded against all the insects logged in Baltimore (9 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
