Nature in L.A.

Showing posts with label : Blog

January 27, 2015

115th Annual Christmas Bird Count @NHMLA!

On December 28, everyday people from all over Los Angeles flocked to the Natural History Museum to help count the bird life of L.A.! Some came as beginners ready for an intro to birding from Kimball Garrett, one of the best and most well-known birders in town, who also happens to be the Museum’s Ornithology Collections Manager. Others came because they were interested in contributing to this important bird census, but didn’t plan to see any surprising or remarkable species in our small urban oasis.  Little did they know they were in for some surprises.

Kimball started off the morning explaining what the Christmas Bird Count (CBC) is all about. He hyped up the activity by reminding everyone that it is the oldest citizen science survey in the world and provides invaluable information on bird population trends.  Another fun fact that Kimball...

January 26, 2015

BioSCAN: Not Just About Flies

By Elizabeth Long By now most people familiar with the BioSCAN Project know that we spend a lot of time looking at flies, but it may come as a surprise that we are equally passionate about other insect groups that can also be used for our biodiversity research. One such group is the Order Lepidoptera, the much beloved butterflies and moths. They are not usually collected by way of Malaise traps (they get a bit soggy in the ethanol), so for this reason there’s not much information about butterfly diversity in Malaise trap based projects. When I first started to identify the BioSCAN samples, I didn’t know what to expect and I was pretty sure that we wouldn’t be finding any new species of butterflies, much less 30 new species (yes, sometimes I have phorid fly envy!) — collecting and naming butterflies has been popular for centuries.


January 9, 2015

Faces of BioSCAN: The Fabulous Betty Defibaugh!

BioSCAN is a unique project because it focuses the excitement of scientific discovery right here in our own bustling city and relies on the dedication of L.A. residents through whom those discoveries are made. Our BioSCAN site hosts provide a crucial service by keeping our large insect traps (called Malaise traps) in their back yards, changing the samples weekly, being our "eyes in the field," and by sharing photos, stories and the excitement of their own insect observations.  I am thrilled to introduce Betty Defibaugh: world traveler, entomologist, Natural History Museum volunteer extraordinaire for the last 26 years, and proud BioSCAN site host! [caption id="attachment_589" align="alignnone" width="748"]Betty with a drawer of her favorite insects: butterflies. Photo by Kelsey Bailey. Betty...

January 7, 2015

Selfie Sticks and Hummingbird Nests

We found another hummingbird nest in the Nature Gardens! On December 28th Miguel Ordeñana, Museum Citizen Science Coordinator, found an Allen's Hummingbird, Selasphorus sasin, nest in our cork oak tree.

Female Allen's Hummingbird, photo courtesy of Felipe Lepe.

As you can see she's (only female hummingbirds build nests and care for the young) sitting pretty in her nest, but are there any eggs? Over the last few weeks we've observed her sitting in the nest for extended periods of time. This behavior led us all to believe that there were definitely eggs in there. But, we wanted to be sure. As luck would have it, I recieved a late Christmas present last night–a selfie stick.

It was sort of a joke gift, I am a vocal selfie stick hater! I mean, I just can't...

December 23, 2014

First Lizard Found in Museum's Nature Gardens!

On November 19, 2014 something happened at work that I’ve been waiting three and half years for. Unfortunately, I wasn’t here to witness it, but thanks to citizen science I was able to celebrate the discovery, even though I was 6,187 miles away.

On that day, newly turned citizen scientist Toni Castillo documented the first lizard in the Museum’s Nature Gardens.

Photo courtesy of Toni Castillo

The lizard in question was a Western Fence Lizard, Sceleporus occidentalis, and Toni, a Museum staffer, just happened to see it as she was walking through the gardens.

“I was walking next to the Living Wall and saw something in the pathway. At first I thought it was a leaf or a stick, but then I looked closer and realized it was a lizard.”

Toni knew that this was a unique find—she’d heard...

December 11, 2014

Plant Clocks: Telling Seasonal Time in the Nature Gardens

Want to know the time of day? Look no further than your wristwatch, clock, computer, or cell phone. For the time of year, though, look to nature. Like a reliable timepiece, certain plants and animals signal the change of season. Just like learning to tell time, anyone can learn to read nature’s seasonal clock. As with so many things here in the Golden State, nature is decidedly different from the rest of the country — our spring really begins in autumn!

The current three-year drought aside, L.A’s Mediterranean climate is usually characterized by cool, wet winters and warm, dry summers. California’s native plants have adapted over thousands of years to this cycle and, even before the first raindrops fall from the sky, some plants begin to emerge from their summer resting phase, sprouting new leaves or bursting into bloom.

Manzanita in...

December 2, 2014

Brainwashed Bees

By Brian Brown Some of you might have heard about the "ZomBee" project, both at our museum and perhaps at its source. It appears that honey bees parasitized by a phorid fly called Apocephalus borealis change their behavior and fly to lights in the evening. I witnessed this phenomenon myself in Pasadena a couple of nights ago, where dozens of bees were circling a porchlight and crawling on the side of a house at 8pm. Apocephalus borealis, the "zombie fly" Apocephalus borealis, the "zombie fly"This is just a reminder that if you see or hear about this type of abnormal bee behavior, please let us know so we can investigate....

November 12, 2014

The Real L.A. Noir: The True-life Insect Cannibals and Murderers in our Midst

The coffin fly. Image courtesy of Kelsey Bailey.

As you get into your car in the parking lot of the Trader Joe’s in Silver Lake in Los Angeles, you might just be within arm’s reach of cannibals. Not the human kind – but the insect variety.

Inside a wasp that is buzzing around a nearby bush dwells a bug known as the twisted wing parasite. These tiny insects are genetically close to flies and resemble nothing so much as a small black speck. But placing that speck under a microscope reveals huge, orb-like eyes that, as entomologist Emily Hartop puts it, look like sinister purple boysenberries.

Although the twisted wing parasite’s name comes from the seemingly malformed wings of the male of the species, the female has no wings. In fact, she has no legs, not even functional mouthparts – she is literally...

October 31, 2014

We Found a Western Red Bat in the Nature Gardens: A Small Visitor with Big Implications

Western red bat, Lasiurus blossevillii, photo by Ted Weller, US Forest Service.

Happy bat week everybody—we have bat-tastic news to share with you just in time for Halloween!  Over the month of September we recorded not just one, but TWO new species of bats that had never before been detected in the Museum’s Nature Gardens. Firstly we found the non-migratory and somewhat urban-adapted canyon bat, Parastrellus hesperus. This bat is common throughout the southwest and is strongly associated with rocky crevices found in canyons. Because they roost in these dark places and are able to remain in the same location year-round, this may mean they can adapt to roosting in urban spaces in L.A.—anything from cracks in concrete underpasses to crevices on hillsides that are...

October 9, 2014

We Found Bats Living at the La Brea Tar Pits!

If you’ve ever been to the La Brea Tar Pits you might have wondered if bats were around during the last Ice Age when saber-toothed cats (Smilodon fatalis), Columbian mammoths (Mammuthus columbi), and dire wolves (Canis dirus) roamed the land that is now our city. Well, we’re happy to tell you that the answer is yes, and we’ve recently discovered that bats are still flying over the tar pits on a regular basis!

Me hanging out with a pallid bat (Antrozous pallidus) during field work—one of only two species of bats recovered from the prehistoric Tar Pits.

But how do we know that bats are still living in the Miracle Mile? It’s all thanks to bat detectors. Bat detectors are devices myself and other scientists use to record the ultrasonic calls—remember echolocation from...