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Showing posts with label : Blog

November 10, 2015

Red Fox Sighted in San Pedro: From Fox Farms to Coyote Food

On a recent visit to San Pedro, the Natural History Museum’s Kimball Garrett crossed paths with a nonnative red fox (Vulpes vulpes) near the 22nd Street Landing . Although unusual now, red fox sightings were commonplace in many parts of coastal Southern California just a few decades ago.


Photo courtesy of Kimball Garrett
 
If red foxes aren’t native, how did they get to Southern California in the first place? Not surprisingly, their introduction was anthropogenic, the result of human activities. From 1905 to 1919, red foxes from the eastern US were imported into Orange County specifically for the sport of fox hunting. Simultaneously, the farming of imported foxes for the fur industry was becoming widespread throughout California. More than 100 fox farms existed across the state by the 1940s. Escapees and deliberate releases from...

November 2, 2015

Land Snails: The Key to Beauty?

Snail slime has many names-snail mucin, snail secretion filtrate, or just plain snail mucus. But is it going to save your skin? 

Snail slime has hit the beauty market in spectacular fashion, enhancing face creams, moisturizers, gel masks, and skin repair serums. South Korean cosmetics companies have been at the forefront of this trend with claims that these snail slime products reduce wrinkles, repair damaged skin, improve acne scars, and lighten dark spots. So, from what magnificent snail comes this “miracle” beauty product? 

The common garden snail. 


Tonymoly Intense Care Snail Hydro-gel Mask with its “creator,”...

October 22, 2015

Sea snakes, blind snakes, and the most extraordinary month of snake discoveries in Southern California’s history

Over the past month, Southern Californians have observed two species of snakes that will forever change our understanding of the region’s snake fauna. One of the species is already a media darling, a beautiful but venomous sea snake recently showcased in dozens of media outlets. The other is small, brown, and cryptic, but in many ways has an even more remarkable story to tell. Let’s meet the two players in this story.
 

The Yellow-bellied Sea Snake, Pelamis platura (often listed incorrectly as P. platurus)


The Yellow-bellied sea snake that washed up on Silver Strand Beach, Oxnard, Ventura County on Oct 15 and 16, 2015. Photographed shortly after it died by Ashley Spratt/USFWS.
 
This sea snake ranges from...

October 7, 2015

A Tale of Two Cities

Los Angeles (top) and Warsaw (bottom), two cities on the urban biodiversity frontier (both images from Wikimedia Commons).

The NHM Superproject, a collaboration of the BioSCAN, RASCals, S.L.I.M.E. and Southern California Squirrel Survey projects, is beginning data collection in less than a month (we are still recruiting eager naturalists here). Our study is certainly the largest urban biodiversity study to be undertaken, but urban biodiversity studies of any sort are often considered to be new, innovative research programs. Recently, however, I found an older model...

October 5, 2015

L.A. Bats Fight On!

Happy (American) football season everybody! Yes, some scientists enjoy playing and watching sports in addition to searching for wild animals and staring at tiny things under a microscope. This is true for me. Growing up in a Nicaraguan family, playing and watching sports was a big part of my life. Nicaraguans are known to be baseball fanatics, but my mother and I, both being USC alumni, are also serious Trojan football fans.  I’ve been watching the Trojans play at the L.A. Coliseum since I was a young boy and now I take my little brothers to games. But, even when a game is playing out below, I can't completely turn my scientist-self off–particularly when there are bats involved. Let me tell you about the bats that Fight On!


Mexican free-tailed bat (aka Brazilian free-tailed bat) from NHMLA's mammalogy collection. ...

September 25, 2015

Introducing Your Los Angeles Snails!

There is a new citizen science project in town and we need your help to document the snails and slugs that call Los Angeles home. SLIME (Snails and Slugs Living in Metropolitan Environments) kicked off earlier this year, and we are already making some interesting discoveries about life in L.A.'s slow lane. 

White Italian snails on a sprinkler at the White Point Nature Center, San Pedro, Los Angeles County. Notice the variation in color and pattern. Photo by Austin Hendy.

There are about a dozen common land snails in Los Angeles County. If you’ve hiked within the Palos...

September 20, 2015

Meet the Insects of L.A. City Hall

Being a resident of the most filmed city in the world, there are some buildings that I have as much familiarity with from portrayals on the silver screen as I do from my daily commute home.  One such building is our iconic City Hall, completed in the 1920s in a fashion one architect described as an architectural hybrid “Modern American” style.  Built from concrete taken from sand from all 58 Californian counties and mixed with water from all 21 Missions, this classy behemoth has been featured in dozens of films and TV shows (my personal favorite cameo is Carpenter’s 1980s classic, “Escape from L.A.”).


Photos above by Estella Hernandez. All photos below by Kelsey Bailey.

Standing at 450 feet, L.A.’s City Hall is a structural...

September 10, 2015

A Charm of Hummingbirds in DTLA

Downtown Los Angeles (DTLA) is cast as one of the most iconic concrete jungles, with skyscrapers, cars, and miles of concrete. Many think of this as a place bereft of nature. But, over the last number of years pocket parks have been built, landscapes have been changed (think City Hall), and street-side planters have been added (though the habitat value of the plants in the Broadway bump-outs is questionable at best). Nature has always been here, and will continue to be so. But the often cited examples of urban nature, rats, pigeons, and ants, aren’t the only ones calling DTLA home.



At our recent BioBlitz L.A. event at City Hall we worked to document the wildlife in downtown. With a dedicated crew of 9 citizen scientists, we managed to document 28 species in...

September 8, 2015

Los Angeles is Being Invaded by Frogs!

Sunday, September 6, 7:54 pm, my phone vibrates with an incoming text message. I look down and see a photo of a frog taken in Hollywood. This isn’t an unusual occurrence. When you study urban biodiversity and spend big portions of time telling anyone that will listen that they can make the next big urban biodiversity discovery, this is the happy result—incoming photos of critters to identify. Usually it is a native frog, lizard, or snake, but with alarming and increasing frequency, the photographed critter is a nonnative species.
 
The mystery frog as found in Hollywood and photographed by Elizabeth Long.

In this photo, the critter is a frog. But is it a common native or an unusual nonnative? Unfortunately, smartphones aren't great at taking nighttime photographs of frogs, and I can't yet be sure of the identification. However, I...

August 31, 2015

When Fig Beetles Attack!


Photo by Brian Brown

It’s a beautiful summer day in L.A. and I am strolling across a wide open lawn. The sky is bright blue and decorated with scattered clouds. The sun shines with that lazy-afternoon-golden-California glow and the grass tickles my toes. A bird sings sweetly and the whole scene is so idyllic it is cliché. Suddenly, a loud buzz and “WHACK!”, something the size of a large marble slams straight into the side of my face. Meet the fig beetle.

Fig beetles (Cotinis mutabilis), also known as figeater beetles or green fruit beetles, are a Southwestern species of beetle that careen through the air with the grace of a charging rhinoceros. They are loud, they are big (often around an inch long), and they are everywhere right...