Nature in L.A.

Showing posts with label : Blog

May 22, 2014

The Coffin Fly

Photo by Kelsey Bailey. Photo by Kelsey Bailey. 

As you well know, we are fly obsessed here at BioSCAN. Particularly, we are phorid obsessed. I am particularly obsessed with the macabre species Conicera tibialis, commonly known as the Coffin Fly. Perhaps it's the shadowy lighting as I view them under the microscope, but these flies, with their dark velvety bodies and (almost sinister looking) conical antennae (males only, females have round antennae), appeal to me tremendously. Photo by Kelsey Bailey. Photo by Kelsey Bailey

A number of phorid species are known to colonize humans remains, but C. tibialis...

May 15, 2014

Molten Aluminum + Ants = BUG FAIR!

A note about specimen sacrifice: We do not advocate needless killing of any creature, big or small. Unfortunately, there are aspects of science that we are unable to examine without sacrifice.
Photo by Doug Booher.
Photo by Doug Booher.
A note about specimen sacrifice: We do not advocate needless killing of any creature, big or small. Unfortunately, there are aspects of science that we are unable to examine without sacrifice. The ant nest that was used for our cast was sacrificed to create an amazing and permanent research and educational tool. The loss of one nest allows us tremendous insight into this species, which will benefit future efforts at understanding and conserving these native insects. As a research natural history museum, specimens are prepared and maintained at the highest museum standards, so that they...

May 8, 2014

Going Native

A local bumble bee, photographed by BioSCAN Principal Investigator Brian Brown.

By Emily Hartop Out of the hundreds of bee species found in Los Angeles County, a single species gets most of our attention: Apis mellifera, the European honey bee. This species has a relationship with man that has existed for centuries. It is an exotic species that was introduced to North America. In addition to being widespread in the wild, they are widely used for pollination of commercial crops, as well as for honey — that sweet elixir of regurgitated nectar that is excellent in tea, cookies, breads, cakes, and all manner of other culinary delights. If you would like to know more about this species, we suggest the fun read "Sweetness and Light" by Hattie Ellis — what we'd like to focus on here are the many ...

May 1, 2014

Faces of BioSCAN: World Traveler & Accidental Bug Lady Jennifer Camello

Photo by Phyllis Sun. Photo by Phyllis Sun.

By Emily Hartop This week we feature another of BioSCAN's amazing USC students, Jennifer Camello. Jennifer is a junior at USC majoring in Anthropology. She plans to go to medical school with the admirable goal of being a leader in global health advocacy, helping to make the world a more equitable place. Jennifer came to our lab "squeamish around insects". Although she admits that she is still working on not panicking when there are bees or wasps around, she now finds herself intrigued by most of the insects she encounters. Not only does Jennifer identify the insects she sees to the level of order (part of what she does for the project), but she even tries to examine the genitalia of flies to determine the sex. We have trained her well. Her favorite part about the BioSCAN...

April 24, 2014

Up Close and Personal with Fly Genitalia

SEM Photography by Emily Hartop SEM by Emily Hartop

By Emily Hartop As many of you know, a principal research focus of the BioSCAN project is the phorid fly. Although a majority of us encounter phorids everyday, we are mostly oblivious to their existence due to their small size. Luckily, scientists have tools that allow us to enter the microscopic world of the phorid in order to study them in detail. Three of these techniques: scanning electron microscopy (SEM), slide mounting with compound microscopy, and stereo microscopy are the subject of this week's blog. The photo above is the male genitalia of a species of phorid of genus Megaselia taken with a scanning electron microscope (SEM). This specimen came from a BioSCAN trap, and was dried from its ethanol-soaked state with a chemical called HMDS. Entomologists use...

April 17, 2014

Faces of BioSCAN: Research with the Remarkable Regina Wetzer

Photo by Phyllis Sun Photo by Phyllis Sun

By Emily Hartop This week, I am pleased to better acquaint you with BioSCAN's Co-Principal Investigator, and Associate Curator & Director of the Marine Biodiversity Center, Dr. Regina Wetzer. Regina was a natural fit for the BioSCAN project. She is a marine biologist with a passion for taxonomy and biodiversity. She is also an accomplished ambassador — she works closely with both professors and students at USC and has colleagues across disciplines and around the globe. She understands deeply how collaborations allow researchers to accomplish bigger, greater goals than what they could achieve individually. As Co-Principal Investigator of this project, she supervises much of the day-to-day activity of the BioSCAN lab — including advising our many USC students on...

April 10, 2014

The Mesmerizing Eyes of Eristalinus taeniops

By Emily Hartop This week, we bring you a visual treat from BioSCAN's Principal Investigator, Curator of Entomology, and Photographer Extraordinaire, Dr. Brian Brown.Photo by Dr. Brian Brown Photo by Dr. Brian Brown

By Emily Hartop This week, we bring you a visual treat from BioSCAN's Principal Investigator, Curator of Entomology, and Photographer Extraordinaire, Dr. Brian Brown. His beautiful photo (above) of Eristalinus taeniops was taken in the NHM's Nature Garden, home to BioSCAN Site #1. This species is commonly known as the Stripe-Eyed Flower Fly, from the family Syrphidae, commonly called Flower or Hover Flies from their habit of hovering hummingbird-style over flowers in search of nectar. Although syrphid flies are quite common in the BioSCAN traps, this particular species has not yet...

April 7, 2014

California Towhees in the Nature Gardens

Have you ever seen this bird?

California Towhee visits the Natural History Museum. Image courtesy of Kimball Garrett

Okay, so unless you are a birder type, you may look at this picture and think, "How the heck do I know? It just looks like a dull, brown bird to me." This is almost exactly what I thought when I saw the picture in my inbox recently. However, after reading the e-mail it was sent in, I realized this is a bird I see, and hear, in Griffith park all the time. You see, this bird can be much easier to identify when it is alive—scratching around in the leaf litter in front of your eyeballs, and chirping away close to your earholes.

First rule of bird nerd club, you gotta look at more than just color and pattern!

Kimball, teaches this and an...

April 3, 2014

The Faces of BioSCAN: Photography with Kelsey Bailey

Photos by Kelsey Bailey Photos by Kelsey Bailey

BioSCAN Buzz is excited to bring you the first in a new series of blog features: "The Faces of BioSCAN". We will be interspersing these posts, illuminating the amazing folks we have working behind the scenes, with continued coverage of exciting news from the project. This week, we begin our series by featuring the woman behind the amazing insect photographs you see on the blog: Kelsey Bailey. Photo by Phyllis Sun Photo by Phyllis Sun

Kelsey is a senior political science student at USC, minoring in photography and social change. After graduation, Kelsey aspires to find a job that will utilize her diverse talents and allow...

March 25, 2014

Flat-headed Fig Invaders from Outer Space!

Photo credit: Kelsey Bailey Photo credit: Kelsey Bailey

Disclaimer: To our knowledge fig wasps are not really from outer space, they just look like miniature aliens. To understand the tiny wasps in the family Agaonidae, you must first understand their inverted-flower “spaceships of reproduction”: figs. A fig, although it masquerades as a simple fruit, is actually an inside-out inflorescence (cluster of flowers). This inflorescence, once pollinated, becomes an infructescence (cluster of fruits) that contains the fig tree’s seeds. Pollinating this “calzone of the flower world” is no easy task: enter the fig wasp. These flat-headed wonders of fig pollination measure out at a slender two millimeters in length, and have an obligate mutualism with fig trees —meaning the...