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RAVENSWOOD
MEDIA
NEWSLETTER
Issue #9, April 2010
Providing a conduit between science and the public |
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RAVENSWOOD MEDIA'S WEBSITES
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CRAWFISH FROGS
by David Cottrell
Many nature enthusiasts recognize the low-pitched croaking call of the Crawfish Frog, but few ever really get the chance to see one. That's because they are considered to be among the most secretive of all amphibians, and have duly earned the nickname "ghost frog".
Once inhabiting a large section of the middle and southern prairies of the US, the Crawfish Frog's range is rapidly depleting due to urban and agricultural land development and the dwindling |
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presence of fishless wetlands, which are necessary for the female's springtime egg laying (females can lay up to 7,000 eggs, which hatch into tadpoles that metamorphose into juveniles later in the summer and can take more than two years to grow to adult size).
Averaging anywhere from 3 to 4 inches long, about the size of a small fist, Crawfish Frogs are found in Texas, Oklahoma, Mississippi, Arkansas, Kansas, Missouri, Indiana, Kentucky, and Tennessee. Populations in Iowa have been extirpated, and many others are in decline. Adult frogs can be cream colored to brown and black with irregular blotches on the top and sides.
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| Calling Crawfish Frog, Rana areolatus |
Crawfish Frogs inhabit the burrows of crayfish in prairies and grasslands, and spend a lot of time inside the burrows, eating insects that wander nearby. Now considered a threatened species, and even endangered in some states, conservation efforts are underway to protect what's left of them.
Dr. Michael J. Lannoo is a well-known champion for the preservation of amphibians. As a professor of anatomy and cell biology at Indiana University, he has dedicated his career to researching and publishing critical information addressing amphibian species decline. "There is a large component of human health dependent upon environmental health, and the presence of these amazing frogs are a great indicator of the wellness of the land." |
Currently, Dr. Lannoo is spearheading his field research with a team of students at sites in Southwestern Indiana, at with colleagues at the Big Oaks National Wildlife Refuge. "They spend most of their lives in a single crayfish hole and this hole may be a mile or more away from breeding wetlands, so they need time and large expanses of grassland, and we are not good at giving animals time and space." Part of the refuge where they've thrived was once used as a military firing ground, where bombed out craters have become wetlands, somewhat of a silver lining to the original destruction. |

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| Jennifer Heemeyer tracking a Crawfish Frog |
Through Dr. Lannoo's research, his field teams are hoping to discover enough about the biology of the frogs to ultimately save them from decline, and even extinction. "We've had wildlife cameras on them for six months, six cameras, 6,000 photos at one hour intervals, and the most surprising thing to us is that they don't have predictable activity patterns. They could be out of their burrow feeding at 3 am or 3pm and they continue this around the clock activity in no order for days and days." Dr. Lannoo also says they rarely go beyond their burrow entrance, about the size of a coffee cup saucer. "They are in their burrow with their head sticking out, or they are completely out of their burrow on their feeding platform and this allows us to follow individuals for a long period of time."
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Mike Redmer, US Fish and Wildlife Service, studied the Crawfish Frog for his graduate work. Despite the fact that it is not a federally listed species, the USFWS is indirectly involved when a state identifies this species as a priority and funds work on it through the State Wildlife Grant program. Mike Redmer pays close attention to Lannoo's work. "Mike's work is extremely important not just because this is one of the most poorly known of the large North American frogs, but also because it is one that herpetologists believe to be declining in large parts of its range. The work that Mike and his students are doing, especially with cameras placed at burrows to learn about its behavior is rapidly allowing them to build a profile of the day to day needs of this species. Based on what Mike has told me of his lab's work so far, I suspect they will be able to help natural resource agencies apply what they have learned to more effectively conserve this species in the future."
Additionally, as Chytrid Fungus has recently had a massive detrimental effect on frog species, the Crawfish Frog stands up to the fungus assault fairly well. "Almost 90% of the frogs we've tested have Chytrid. But for some reason they have a genetic resistance or something in the bacterial flora on their skin that repels the effects of it. So far, we only have 5% mortality from Chytrid." |
| Mike Redmer poses with a Mudpuppy (Necturus maculosus) |
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And whether we are looking at preserving animals as big as buffaloes or as small as frogs, Dr. Lannoo believes we should give equal consideration to all. "Crawfish Frogs represent a lifestyle that is completely unique in North America when it comes to frogs. The fact that they rely on another species for their home, that they can find their way to burrows and are as much a prairie species as a buffalo. If we can't save a species like this, what does that say about our humanity?" |
TO SHINE A SEARCHLIGHT
by David McGowan
Sometime in the summer of 1972 PBS began a remarkable BBC series called "The Ascent of Man."
Dr. Jacob Bronowski walked the public through the fits and starts of human history. I was a typical teenager flipping channels between The Beverly Hillbillies and Tony Orlando and Dawn Variety Hour when I accidentally turned to this host with the funny accent sitting on a rock in the Olduvai Gorge. I had never seen anything like it....
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His manner was deliberate, not rushed. It was obvious he knew what he was talking about but it was his sincere desire to share with the audience in a deeply personal way that made his presence so compelling.
In the clip above, Dr. Bronowski talks about the discovery of the Tuang baby skull. He gives a concise description of the features that made this skull important in our understanding of human evolution. But it is his reflection of his own contribution, through abstract mathematics, "to shine a searchlight into the history of man," that resonated with a mediocre student growing up in Northwest Indiana. I didn't become a mathematician or an anthropologist but I have throughout my filmmaking career tried to find that spark of human sharing that makes a narrative glimmer, whether it's on an Imax screen or told across a campfire.
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| Jacob Bronowski (1908 - 1974) |
Dr. Bronowski wasn't handsome, his speech was restrained and he wasn't setting any fashion standards (he's wearing a tie under the hot sun of Kenya, for God's sake) yet he commanded the attention of millions of viewers. He had profound impact on the culture of the era not through gimmicks or superlatives but through the act of sharing himself.
His influence extended into some odd places....
The Ascent of Man is just as refreshing today as was when it was produced. |
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RAVENSWOOD MEDIA OFFERS
WEBSITE SERVICES
by Mike Brockway, Ravenswood Media IT Director
We just revamped our corporate website using Drupal. Drupal is the next-generation open source content management system (CMS) that facilitates the creation and organization of multiple kinds of content on a website. This approach offers site maintainers and visitors powerful user management tools that enhance the two-way communication that defines today's social media. The power of this approach is in the easy availability of thousands of modules that work seamlessly to extend its functionality and the committed community of users that creates and maintains the modules. The drudgery of of keeping a myriad of pages, media and links up to date is history and now we webmasters are freed to focus on site features and user experience.
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Web 2.0 means you're a user and so are they. You are the user who has ultimate control over what's shown on your site.
This enables you and your colleagues to interact with your community on a real time basis. Want your homepage to stimulate discussion and action on today's hot button issue? It won't take a series of negotiations, meetings and an interminable wait. Just log on and start typing, inserting and clicking. Want a homepage poll on the latest environmental initiative mentioned in the president's speech? Simple. There's a module for that and yes, it's already enabled. Put your new video message on the homepage, quiz viewers on what they've learned and ask for comments. While we're at it, let's get a wiki and a shared calendar going.
At Ravenswood Media, our motto is "Providing a conduit between science and the public." We're fascinated by the tech advances improving video on the web and those facilitating our interaction with our community.
To complement our well crafted video, Ravenswood is now offering web development services and consulting to help lay the groundwork for your Web 2.0 debut. |
FILM FESTIVAL AWARDS
Ravenswood Media won a Merit Award for Message at the International Wildlife Film Festival. The PSA "Let Nature Bring You Back To Your Senses" will be screened at the Festival during the week of May 8-15.
Ravenswood Media won an Award of Merit for Public Service Programming for the PSA "Let Nature Bring You Back To Your Senses". The Accolade Competition honors outstanding craft and creativity in film, television and videography.
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PEDRO ALCANTARA DE SOUZA, TOP AMAZON ACTIVIST, SHOT DEAD IN BRAZIL
I didn't know Mr. De Souza but from what I read he was a brave man and died for what he believed. I feel terrible for his family but humbled by the knowledge that people are willing to risk their lives for a greener world. The conservation community mourns his loss. D.M. |
SCREENINGS
Notebaert Nature Museum:
January 13 Ravenswood Media screened Why Frogs Call and Why We Should Listen at the Peggy Notebaert Nature Museum. Mike Lannoo, Ph.D. gave a presentation on his work with crawfish frogs in southern Indiana. It was the first event of an adult lecture series hosted by the Notebaert. 70 people attended, far more than had been anticipated.
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| Dr. Lannoo lecture at Notebaerrt Nature Museum |
EPA Region 5:
Ravenswood Media held a dual screening on January 25 at the Region 5 EPA offices in Chicago. The Programs, To Build A Better Ditch and Hostile Takeover, were programs of immediate concern to the Great Lakes office of the Environmental Protection Agency. Scudder Mackey gave a very good update on the Asian carp issue and the electric barrier on the Chicago Sanitary and Ship Canal. The event was well attended, the most people out of all the screenings that we have done for the Agency.
Shedd Aquarium:
February 2 the Shedd Aquarium hosted a screening of To Build A Better Ditch for employees. Margaret O'Dell, past program officer for the Joyce Foundation, spoke about the reasons the Joyce Foundation funded The Nature Conservancy's 2 stage ditch project as it relates to Great Lakes issues. The Shedd Aquarium is deeply concerned with Great Lakes protection and is planning a Great Lakes hall at the aquarium.
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The Nature Conservancy, World Office:
March 9, 2010 was a beautiful day in Arlington, Virginia. Joe Draper and I met at the World Office of The Nature Conservancy for the screening of "To Build A Better Ditch." This was my third screening at the WO and I was surprised at how many people we attracted for a presentation on ditches. Joe Draper, project manager for the Upper St. Joesph River office of TNC in Indiana, gave a presentation on the benefits of 2 stage ditches on controlling erosion and reducing nutrient overloads into rivers.
After the presentation, there were lots of questions about this low tech, field based method for building ditches. Policy questions and suggestions dominated the conversation. An important question for the DC area was "could it help the Chesapeake Bay?" |
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| World Office of The Nature Conservancy, Arlington, Virginia |
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National Oceanic and Atmospheric Administration:
March 9, 2010 - The presentation and questions at the NOAA screening were far more technical than the event at TNC. I was impressed how seamlessly Joe was able to switch his presentation from policy to science. Rob Magnien, Director for the Center of Sponsored Coastal Ocean Research, was particularly interested in nitrogen and phosphorous reductions in 2 stage ditches. Renata Lana, Communications Specialist, gave Ravenswood Media a compliment by noting how much she enjoyed viewing the video, To Build A Better Ditch.
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| NOAA Headquarters
Silver Spring, Maryland |
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UPCOMING SCREENINGS
Caves: Life Beneath The Forest -- Peggy Notebaert Nature Museum, April 21, Wednesday, 6pm. Screening is followed by a presentation on bats by Rob Mies. Space is limited and registration is required, so please call 773-755-5179 to register.
Why Frogs Call And Why We Should Listen -- Save the Frog Day at the Peggy Notebaert Nature Museum, April 30, Friday, 1pm. Mike Lannoo will give a presentation on the current status of frogs in the U.S.
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PROJECTS
This American Land hired Ravenswood Media to gather interviews and B-roll for a piece on Asian carp. McGowan and Uemoto filmed at Shafer's Fishery in Thompson, Illinois. We were surprised to see how many different kinds of fish are harvested from the Mississippi and Illinois Rivers. Unfortunately, the big head carp is by far the most prevalent species in the river.
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Takuya Uemoto and David McGowan on the Illinois River |
David McGowan and Takuya Uemoto traveled to southern Indiana to film an Indiana bat (Myotis soldalis) hibernaculum. Dr. Tim Carter led the trip into Magazine Mine, the winter home to 40,000 bats. Dr. Carter and US Forest Service scientists were concerned that the dreaded White Nose Syndrome had found it's way to the mine. There were lots of white noses but not from the fungus, the hibernaculum is a chalk mine. McGowan and Uemoto were there to document the vast number of bats in the mine, as well as film the scientists taking fungal samples from the muzzles of the bats. The documentation was funded by the US Fish and Wildlife Service. Ravenswood Media was granted a Blanket Purchase Agreement earlier this year by the Service.
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| Tim Carter and hibernating Indiana bats |
Tim Carter and Joe Kath (INDR) in Magazine Mine |
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