Category: Uncategorized (Page 5 of 25)

Bug of the Week: Saguaro Bees

It’s May and the saguaro cacti are in full bloom.

saguaro-flower-carpenter-bee-111Although the flowers are open at night, they remain open long enough in the morning for bees and birds to gather their nectar and pollen.

saguaro-flowers-bees-123Both honey bees and carpenter bees are visiting these flowers.

white-winged-dove-on-saguaroThe birds that pollinate the saguaros are white-winged doves. They show up as the cacti begin to flower and stay through the summer fruiting season.

bees-over-saguaro-flowers-456Why didn’t I get any closer photographs?

saguaro-exampleThat might have been a bit difficult, as saguaros can be roughly 50 feet tall when mature. The flowers form at the top.

Have you ever seen a saguaro cactus in bloom?

 

Seed of the Week: Curly Dock

As Sara recognized, our mystery seeds from last week were from curly dock, Rumex crispus.

dock-from-dbg-2

Curly dock is a short-lived perennial that can now be found growing throughout the world. It is thought to be originally from Europe. (Photograph is of related a Rumex). Here in Arizona it can be found in the higher elevations.

curly-dock-flower-stalk

In the summer inconspicuous green flowers form on a single, towering stalk.

curly-dock-top

The plant is easier to recognize when the flower stalk matures and turns a noticeable rusty brown. It stands out against nearby green plants.

mystery-seed-204-22

The “wings” around the seeds are the calyx (collection of sepals) of the original flowers. The calyx of curly dock has more smoothly rounded margins than some other species, which is an identifying characteristic.

 
In this video, you can see how the brown stalks stand out. (Note: there may be a pop-up ad).
 

 

Have you seen curly dock before? Is it common where you live?

Seed of the Week: Seed Photography

Ever run across a photograph that made your jaw drop, and then made you ask, “How did the photographer do that?”

Take these photographs posted on Flickr by Sam Droege of the USGS Native Bee Inventory and Monitoring Lab, for example:

Echinocactus polycephalus – cotton top cactus seed

Echinocactus polycephalus ssp xeranthermoides

Paspalum species

Southern red oak acorn

In this case, Sam Droege offers a manual that shows the set up and process. He reveals that he uses StackShot Rail, which digitally combines a series of photographs to give that amazing all over focus. The URL address to the manual How to Take Macrophotographs of Insects BIML Lab2 is on his profile page.

Although I’m not ready to buy all the fancy equipment, these just might inspire me to try black backgrounds and pay more attention to lighting.

What do you think? Are you ready to give this technique a try?

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