Centris adani, m, back_2021-07-29-14.34.34 ZS PMax UDR

Description:

Are Bees Territorial? Sometimes. If you are a male. And if you are big. I had not really thought in any systematic way about territoriality in bees until I was looking up information about the bee in this picture (Centris adani. Costa Rico, Tim McMahon collector). My literature poke revealed that colleague Gordon Frankie had published on this long ago in the 70s about territoriality in male C. adani. Off hand I can think of territorial males existing in at least some Anthidium, Xylocopa, Centris, Anthophora, Bombus. Makes me wonder if small bees might sometimes also be territorial but we just aren't observant enough to discover that fact. But, I would bet not, probably just a big bee thing. If you are territorial it has to be useful or why bother? Probably has to do with mating opportunities. Which leads to another weak observation: In general, highly territorial males are both praised and denigrated in human society. What is the intersection between those two thoughts? It feels fuzzy, ... but intriguing. If there is not a scientific paper there, there must be at least a novel. Perhaps a high end Romance Novel. ~~~~~~~~~~{{{{{{0}}}}}}~~~~~~~~~~ All photographs are public domain, feel free to download and use as you wish. Photography Information: Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash in Styrofoam Cooler, F5.0, ISO 100, Shutter Speed 200 We Are Made One with What We Touch and See We are resolved into the supreme air, We are made one with what we touch and see, With our heart's blood each crimson sun is fair, With our young lives each spring impassioned tree Flames into green, the wildest beasts that range The moor our kinsmen are, all life is one, and all is change. - Oscar Wilde You can also follow us on Instagram - account = USGSBIML Want some Useful Links to the Techniques We Use? Well now here you go Citizen: Best over all technical resource for photo stacking: www.extreme-macro.co.uk/ Art Photo Book: Bees: An Up-Close Look at Pollinators Around the World: www.amazon.com/Bees-Up-Close-Pollinators-Around-World/dp/... Free Field Guide to Bee Genera of Maryland: bio2.elmira.edu/fieldbio/beesofmarylandbookversion1.pdf Basic USGSBIML set up: www.youtube.com/watch?v=S-_yvIsucOY USGSBIML Photoshopping Technique: Note that we now have added using the burn tool at 50% opacity set to shadows to clean up the halos that bleed into the black background from "hot" color sections of the picture. www.youtube.com/watch?v=Bdmx_8zqvN4 Bees of Maryland Organized by Taxa with information on each Genus www.flickr.com/photos/usgsbiml/collections PDF of Basic USGSBIML Photography Set Up: Google Hangout Demonstration of Techniques: plus.google.com/events/c5569losvskrv2nu606ltof8odo or www.youtube.com/watch?v=4c15neFttoU Excellent Technical Form on Stacking: www.photomacrography.net/ Contact information: Sam Droege sdroege@usgs.gov 301 497 5840