Showing posts with label carpenter bees. Show all posts
Showing posts with label carpenter bees. Show all posts

Monday, August 13, 2007

Passionflowers and carpenter bees


At mid-day in the meadow, the passionflowers open up. Our native passionflower (Passiflora incarnata) is a lovely sprawling vine (sometimes a bit too sprawling, but it's easily pulled up when it gets out of hand). Each flower only lasts for a day, fading quickly. They're pollinated by carpenter bees, who drink the nectar pooled at the base of the flowers. I noticed this bee busily working one of the flowers about noon. Check out the pollen on its back! It's such a great example of how flower shape is adapted to promote cross-pollination. As the carpenter bee takes up nectar, pollen is continuously brushed on its back, to be transferred to the next flower visited.

This bee had so much pollen on its back that it was getting down around its mouthparts. Apparently, the pollen doesn't taste good, so she/he busily cleaned up, taking a break from nectar drinking.

Monday, August 6, 2007

Summer bees and flowers

There are so many kinds of native bees, in addition to the introduced honeybee. They've been fun to learn about and observe in different flowers.



The big carpenter bees with their smooth black abdomens are the biggest, except for the occasional queen bumblebee. They visit a variety of different flowers, and are strong flyers. They're not above 'robbing' nectar from Salvias, either, poking holes at the base of the flowers, thereby circumventing entering the flower 'correctly'.

All of the smaller bees are fun to watch gathering pollen. These were visiting native Helianthus hirsutus and Rudbeckia fulgida flowers in the meadow.





There's a specialist bee that collects pollen from these portulaca flowers in one of my containers, but I wasn't able to catch it in a photo.