Tag Archives: environment

Fossil fortune tellers: UF researcher uses fossil record to predict crustacean decline

5 Feb
Victoria Messina is a sophomore journalism student at the University of Florida. Though she typically enjoys writing about fashion and events happening around the UF campus, she decided to try something new by writing a science-based article for Layman’s Terms Media. “I decided to take the plunge into this science world that’s so foreign to me just to change things up a bit. It was really interesting and fun to talk to my sources and hear how passionate they are about this interesting and crucial subject.”

Victoria Messina is a sophomore journalism student at the University of Florida. Though she typically enjoys writing about fashion and events happening around the UF campus, she decided to try something new by writing a science-based article for Layman’s Terms Media. “I decided to take the plunge into this science world that’s so foreign to me just to change things up a bit. It was really interesting and fun to talk to my sources and hear how passionate they are about this interesting and crucial subject.”

Editor’s note: This is part of a series of contributing bloggers beginning their careers as journalists/public relations professionals at the University of Florida. Please see my earlier post about getting journalists excited about science writing early on.

 By Victoria Messina

By studying fossils from the Mesozoic Era,  a period 251-66 million years ago when reptiles shared the land with dinosaurs, researchers at the University of Florida now have a better understanding of the relationship between coral reefs and crustacean diversity.

The study showed that as coral reefs increased over the course of history, so did the biodiversity of decapod crustaceans such as lobsters, shrimp and crabs. But during a historical decline of reefs 150 million years ago, the biodiversity of crustaceans plummeted due to their  reliance on reefs for shelter and food.

Adiël Klompmaker, postdoctoral fellow at the Florida Museum of Natural History at UF and lead author of the study, said this is the first comprehensive investigation of the rise of decapods in the fossil record.

Postdoctoral researcher Adiel Klompmaker is lead author of a new study suggesting a direct correlation between the abundance of coral reefs and the diversity of many crustaceans. Florida Museum of Natural History photo by Jeff Gage

Postdoctoral researcher Adiel Klompmaker is lead author of a new study suggesting a direct correlation between the abundance of coral reefs and the diversity of many crustaceans.
Florida Museum of Natural History photo by Jeff Gage

Klompmaker said data showing the correlation between coral reefs and crustacean biodiversity had been previously lacking from the fossil record perspective.

His study, now available online and published  in November’s print issue of Geology, is also the first to quantitatively show that decapod diversity increased from four to over 1,300 species between the Paleozoic and Mesozoic eras in a time period referred to as the “Mesozoic Decapod Revolution.”

Klompmaker said this historical study gives scientists a clue as to what’s in store for the future of crustaceans.

“If reefs continue to decline at the current rate during this century, then a few thousand species of decapods are in real danger,” Klompmaker said.

Some scientists have predicted that nearly 20 percent of the world’s reefs may collapse within 40 years. Though complete extinction of all decapods is not likely, Klompmaker said adaptation to coral reef collapse would be very difficult for crustaceans that live in reefs and depend on them for food. The overall decline in coral reefs and decapod diversity poses major impacts, such as less availability of crustaceans like shrimp and crabs that are a major food and money source for many.

A small squat lobsters from the Late Jurassic of the Czech Republic. Photo by Adiël Klompmaker, University of Florida

A small squat lobsters from the Late Jurassic of the Czech Republic. Photo by Adiël Klompmaker, University of Florida

To most experts in the field, Klompmaker’s findings did not come as a surprise.

“After diving in reefs all around the Caribbean over the past 20 years, I have experienced their decline firsthand,” said Donald Behringer, assistant professor of Marine Ecological Processes and Field Ecology of Aquatic Organisms at UF.

Most research shows that the recent decline of reefs is due to both natural and human-induced causes.

Although storms and diseases have played a natural role in the deterioration, humans play a much larger role. One major human-influenced impact is ocean acidification, or the decrease in the pH of oceans due to excess carbon dioxide emissions. As the water becomes more acidic, the calcium carbonate base of the corals starts to corrode.

Andrew Zimmerman, associate professor of oceanography and geobiology at UF, said fossil fuel pollution is the root of all the human-influenced impact.

Klompmaker examines fossils of ancient crustaceans at the Florida Museum that may hold answers about the future of modern species. Florida Museum of Natural History photo by Jeff Gage

Klompmaker examines fossils of ancient crustaceans at the Florida Museum that may hold answers about the future of modern species.
Florida Museum of Natural History photo by Jeff Gage

“There’s much concern about major loss of species due to global warming on land, but the risk of mass extinction in ocean life is far greater due to combined effects of ocean acidification and global warming,” Zimmerman said.

Slowing the pace of climate change by reducing the release of greenhouse gases is the single most important change that needs to occur, though the positive effects of this change would not be evident for a long time, Behringer said.

However, there are more immediate steps that can be taken to lessen the brunt of direct human impacts on reefs. People who go boating, diving or fishing can take steps to make sure they are treating reefs in a sustainable manner, Behringer said.

For example, overfishing and coral injuries from boat anchors are two problems that can be easily fixed with proper management. Stricter fishing limits and enforcement are needed to ensure that certain areas don’t get overfished, Behringer said.  He also said simply implementing objects like buoys to protect reefs and alter human use patterns can possibly help reduce anchor impact. Behringer is currently working on a study to figure out the best way to tackle the boat anchor problem.

Some students around the UF campus are starting to realize the economic impact of at-risk reefs.

“So many people can be negatively affected by the decline of reefs, whether it’s someone whose job revolves around reefs or just a tourist who wants to enjoy the coral reefs,” said Evan Hill, UF sophomore studying marine sciences.

A quarry with Late Jurassic rocks representing a fossil coral reef in which many crustaceans were found in the Czech Republic. Photo by: Adiël Klompmaker, University of Florida

A quarry with Late Jurassic rocks representing a fossil coral reef in which many crustaceans were found in the Czech Republic. Photo by: Adiël Klompmaker, University of Florida

Klompmaker’s research showing the indisputable correlation between coral reefs and decapod presence has shown how reef deterioration negatively impacts the future seafood supply and the need for direct action. After all, history repeats itself.

“Everyone needs to be aware of it because everyone’s responsible for it,” Zimmerman said.

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Sea turtles are Gulf travelers, scientists say

23 Dec
 Loggerhead “exchanges” between study sites. Tracks of satellite-tagged adult female loggerheads (Caretta caretta) 119941 and 119946 during the inter-nesting period in 2012 (A); tracks of satellite-tagged adult female loggerheads 108172 (2011) and 119940 (2012) during the inter-nesting period (B). doi:10.1371/journal.pone.0066921.g002

Loggerhead “exchanges” between study sites.
Tracks of satellite-tagged adult female loggerheads (Caretta caretta) 119941 and 119946 during the inter-nesting period in 2012 (A); tracks of satellite-tagged adult female loggerheads 108172 (2011) and 119940 (2012) during the inter-nesting period (B).
doi:10.1371/journal.pone.0066921.g002

Gulf Loggerheads were always thought to be homebodies.

After the females nested, they would make a home at their local beach. They would never travel too far from familiarity.

But, these  threatened female loggerheads are more curious than scientists once thought.

A new study suggests that the turtles nest in different places–laying eggs on the coast of Louisiana one week and traveling hundreds of miles to make another home in Florida weeks later.

The authors of the U.S. Geological Survey study say that the travel routes–which may be littered with leftover oil and increased predators–pose a greater risk to the sea turtle population. The conservation efforts may need to be modified to reflect the findings.

“The satellite data and our observations on the ground tell the same story: loggerheads in this subpopulation nest at multiple beaches, sometimes hundreds of miles apart,” lead author Kristen Hart, a USGS research ecologist, said.

Co-author and USGS biologist Meg Lamont said that simply protecting beaches that are known to be highly populated with sea turtle nests may not be enough.

“These data show it is not sufficient to just protect habitat around high density nesting beaches – such as the St. Joseph Peninsula – because many turtles that nest on the Peninsula use the entire region from the eastern Florida Panhandle to Louisiana,” said Lamont.

Hart said she and her team are continuing to map out the travel routes by tagging the turtles.

“We are working towards defining areas where sea turtles concentrate their activities at sea, effectively building a map of in-water turtle hotspots,” Hart said. “The more we know about their habitat use, the more questions are raised about their behavior and ability to adapt. We hope to build a better understanding of how frequently turtles return to these same locations, and whether or not they move to new habitats when those locations are impacted. This type of information would be extremely valuable for developing management strategies to help in population recovery.”

The study, “Movements and Habitat-Use of Loggerhead Sea Turtles in the Northern Gulf of Mexico during the Reproductive Period,” was published July 3 in the journal PLOS ONE.

Editor’s picks for 2013

2 Dec

banner_final2.jpgI know we still have a month left in 2013.

But with finals and holiday break coming up, I felt it would be appropriate to make a “Best of” post highlighting some of my favorite posts. Since a majority of the blog is written by me, I feel this aggregation serves as a reflection on the type of science writing I have done and the posts I enjoyed the most. But, I’ve also had some amazing guest bloggers this year and will also be including some of their posts as well. So check out the stories below in case you missed them! Thank you to all my loyal followers.

P.S. Once my thesis is over, expect big things!

Best of Layman’s Terms Media, 2013 (no particular order)

Breast cancer vaccines are nothing new: By Dorothy Hagmajer   “Am I going to die?”  That was Susan Foster’s first question when her doctor told her she had breast cancer.Continue reading

Science in the city: In the basement of the emergency medicine corridor of UF Health Jacksonville, Robert Wears, M.D., a professor in the department of emergency medicine, scans engineering books and medical journals, taking notes on his cluttered desk. He is carefully piecing together the historical puzzle of hospital safety.—> Continue reading

Eat, love and die. The short, but meaningful lives of love “bugs: Miss Plecia is all dolled up. She has been stuffing herself full of organic material and nectar in her swampy-syle pad for the past 20 days with hopes of finding her lifelong mate.—> Continue reading

What exactly is pus? Find out in 15 seconds.Wendy Corrales joins us this week to explain the gross, gooey liquid that plagues teenagers–pus!—-> Continue reading

What’s the deal with Dengue Fever? If you live in Florida, don’t ignore.As a Floridian I have somewhat become immune to the feel of a mosquito bite. The annoying quick itch sensation is quickly thwarted by the thoughtless reflex of my hand slapping the affected area and then quickly scratching up and down for a few seconds. After that, I pretty much forget about the bite.—> Continue reading

Scientist uses Instagram videos to explain anatomy concepts in 15 secondsI am always looking for people who share a passion for science and genuinely want to get others excited about it too, which is one of the main reasons I’m studying science communication. While I was in D.C. for the Science Online Climate Conference, I stayed with my friend Steph who introduced me to Wendy Corrales via Facebook. She showed me her videos and I was cracking up.—> Continue reading

UF researcher says T cells the answer to cancer vaccines: John “Bobby” Goulding, Ph.D., a postdoctoral fellow in the department of pathology, immunology and laboratory medicine at the University of Florida, is in a scramble to help create safe and effective vaccines to prevent and fight human respiratory viruses.—>Continue reading

Rebecca Burton is the founder and editor of Layman's Terms Media. Started in 2011, this blog has been used to exercise Rebecca's love of science writing. These posts were selected based on how much was learned throughout the writing process, or the stories that were simply the most fun.

Rebecca Burton is the founder and editor of Layman’s Terms Media. Started in 2011, this blog has been used to exercise Rebecca’s love of science writing. These posts were selected based on how much was learned throughout the writing process, or the stories that were simply the most fun.

What’s for dinner? Island fish, brah: Study shows Hawaiian restaurant menus hold clues to reef healthMost of us look at menus simply to make a quick decision about what we are going to consume in the near future and at what price. We then give it back to our server and the menu is most likely forgotten. –> Continue reading

Abusive mothers’ DNA and the economy could share the blame with Florida DCF for recent child deaths: The Florida Department of Children and Families has been under fire for the past couple of years for failing to stop child abuse and neglect, resulting in thedeaths of seven childrenwho the department said were in “no immediate danger.” —> Continue reading

Wearing goggles to surf: Kook status or Florida Red Tide?: I took a deep breath in. Smelling the saltwater has always been my ritual before starting the process of unloading my surfboard. But, this time I did not feel refreshed or enlightened by the beach breeze. My eyes started to water.—> Continue reading

Native Florida wildlife caught on camera: By Michael Stone Wildlife photographer Michael Stone, a graduate student in science/health communications at the University of Florida, posts the different species and subspecies he sees in his online catalog.—> Continue reading

Great whites use stored liver oil to power through ocean “road trips”Bears, sea lions and whales rely on their external blubber to power through hibernations and migrations. For them, a little extra flab is crucial to their survival.—> Continue reading

 Sea turtles are Gulf travelers, scientists sayGulf Loggerheads were always thought to be homebodies. After the females nested, they would make a home at their local beach. They would never travel too far from familiarity.—> Continue reading

AAV: from ‘Almost A Virus’ to ‘An Awesome Virus’: In 1965, adeno-associated virus (AAV) was discovered while hitching a ride into the cell with adenovirus, which is a virus that causes the fretted pink eye, cold sores and sore throats.—> Continue reading

The Skinny on Good Fats and Bad Fats: How both will affect your health: By Megan Khan Karen Diet trends come in waves. One decade we see the rejection of carbohydrates, and we shun animal products the next. Some of you reading this right now may remember the low fat craze of the 90’s–it was then that fat got a bad rep. The reputation has stuck so much that “fat” is now considered an insult.—> Continue reading

Will tiny drones cure Floridians’ cynicism toward hurricanes? Most residents of Florida–a state constantly pummeled by tropical storms and hurricanes—have become overly cynical of the often hyped-up weather news warning that the latest tropical action in the Gulf of Mexico or off the coast of the Atlantic Ocean could be deadly. —> Continue reading

Croaking Cuban frogs Create Competition in South Florida: Southern Florida, particularly the more metropolitan areas such as Miami and Ft. Lauderdale are definitely not known for being quiet areas. The constant honking of horns, people yelling in multiple languages and bold headlines of bizarre news events make South Florida a melting pot of noise. —>Continue reading

Why Nemo would face an inevitable mid-life crisis: A finding Nemo 2 would not be Disney friendlyIf you’ve seen the movie Finding Nemo, and didn’t like it–shame on you! Pixar movies always have the right amount of humor, recognizable voices and great graphics that make them appealing to both children and adults. Their sequels are almost always just as profitable as the originals, and they’re ability to make animation seem like reality is superb! But, although I love this movie, there are serious factual flaws.—>Continue reading

Monkeys in Florida? iPhonatography from a jungle in Central FloridaAs I pondered ideas on what to do on Memorial Day Monday, I decided I needed to explore the land-locked area of Florida I often complain about, being a spoiled coastal girl who is accustomed to living near a beach. A friend mentioned a trip he took where he saw wild monkeys on an island in the middle of Silver River, near Silver Springs, Fla. After doing some preliminary research (mainly hear-say from Gainesville locals) I found out that  Silver River was the filming site the early Tarzan movies. Some of the monkeys escaped, bred and hence that is why there are wild monkeys in Florida.—> Continue reading

When did eating become so confusing? Tips to simplify your diet: By Megan Khan Karen There are hundreds of diets that are said to make you healthier than you have ever been, rejuvenate your body, avoid certain cancers, help you fit in your high school jeans and the list goes on. From the Atkins diet to the current “juicing” craze, we are fed heaps of “truths” about certain diets that are usually based on a tiny kernel of truth and a whole lot of anecdotal “evidence.”—> Continue reading

Warning: Smoothies can cause sphenopalatine ganglioneuralgiaIt’s that time of year again. Summer. Hot. Humid.The urge to swap that hot coffee for a refreshing smoothie may overcome you. But beware, drinking cold drinks can cause a condition called sphenopalatine ganglioneuralgia.—> Continue reading

What do hula-hoopers, big-wave surfers and composers have in common? A state of “flow”For those of you who do follow my blog, you may have realized I’m a pretty big hoop enthusiast, who also enjoys an everyday runner’s high. Although the physical benefits of running and spinning a circle on various parts of my body may seem obvious, it’s the mental state I’m in when I go on a 5-mile run, or do a freestyle hoop-dance to a 10-track playlist that brings me back after a long workday.—> Continue reading

Be swamp-conscious: Pet owners should be aware of deadly pathogen in Gainesville: By Jackson Presser Pythium insidiosum is common in stagnant, swampy water (lakes/ponds with water temperatures ranging from 68F-95F) worldwide, and the very type of water that is a staple of Gainesville and surrounding areas.  Pythiosis affects its host depending on how it is introduced. Dogs, horses, cattle and other mammals can be infected simply by wading or drinking water that has been tainted with the infection. —> Continue reading

Fossil fortune tellers: UF researcher uses fossil record to predict crustacean decline

28 Oct
Victoria Messina is a sophomore journalism student at the University of Florida. Though she typically enjoys writing about fashion and events happening around the UF campus, she decided to try something new by writing a science-based article for Layman’s Terms Media. “I decided to take the plunge into this science world that’s so foreign to me just to change things up a bit. It was really interesting and fun to talk to my sources and hear how passionate they are about this interesting and crucial subject.”

Victoria Messina is a sophomore journalism student at the University of Florida. Though she typically enjoys writing about fashion and events happening around the UF campus, she decided to try something new by writing a science-based article for Layman’s Terms Media. “I decided to take the plunge into this science world that’s so foreign to me just to change things up a bit. It was really interesting and fun to talk to my sources and hear how passionate they are about this interesting and crucial subject.”

Editor’s note: This is part of a series of contributing bloggers beginning their careers as journalists/public relations professionals at the University of Florida. Please see my earlier post about getting journalists excited about science writing early on.

 By Victoria Messina

By studying fossils from the Mesozoic Era,  a period 251-66 million years ago when reptiles shared the land with dinosaurs, researchers at the University of Florida now have a better understanding of the relationship between coral reefs and crustacean diversity.

The study showed that as coral reefs increased over the course of history, so did the biodiversity of decapod crustaceans such as lobsters, shrimp and crabs. But during a historical decline of reefs 150 million years ago, the biodiversity of crustaceans plummeted due to their  reliance on reefs for shelter and food.

Adiël Klompmaker, postdoctoral fellow at the Florida Museum of Natural History at UF and lead author of the study, said this is the first comprehensive investigation of the rise of decapods in the fossil record.

Postdoctoral researcher Adiel Klompmaker is lead author of a new study suggesting a direct correlation between the abundance of coral reefs and the diversity of many crustaceans. Florida Museum of Natural History photo by Jeff Gage

Postdoctoral researcher Adiel Klompmaker is lead author of a new study suggesting a direct correlation between the abundance of coral reefs and the diversity of many crustaceans.
Florida Museum of Natural History photo by Jeff Gage

Klompmaker said data showing the correlation between coral reefs and crustacean biodiversity had been previously lacking from the fossil record perspective.

His study, now available online and published  in November’s print issue of Geology, is also the first to quantitatively show that decapod diversity increased from four to over 1,300 species between the Paleozoic and Mesozoic eras in a time period referred to as the “Mesozoic Decapod Revolution.”

Klompmaker said this historical study gives scientists a clue as to what’s in store for the future of crustaceans.

“If reefs continue to decline at the current rate during this century, then a few thousand species of decapods are in real danger,” Klompmaker said.

Some scientists have predicted that nearly 20 percent of the world’s reefs may collapse within 40 years. Though complete extinction of all decapods is not likely, Klompmaker said adaptation to coral reef collapse would be very difficult for crustaceans that live in reefs and depend on them for food. The overall decline in coral reefs and decapod diversity poses major impacts, such as less availability of crustaceans like shrimp and crabs that are a major food and money source for many.

A small squat lobsters from the Late Jurassic of the Czech Republic. Photo by Adiël Klompmaker, University of Florida

A small squat lobsters from the Late Jurassic of the Czech Republic. Photo by Adiël Klompmaker, University of Florida

To most experts in the field, Klompmaker’s findings did not come as a surprise.

“After diving in reefs all around the Caribbean over the past 20 years, I have experienced their decline firsthand,” said Donald Behringer, assistant professor of Marine Ecological Processes and Field Ecology of Aquatic Organisms at UF.

Most research shows that the recent decline of reefs is due to both natural and human-induced causes.

Although storms and diseases have played a natural role in the deterioration, humans play a much larger role. One major human-influenced impact is ocean acidification, or the decrease in the pH of oceans due to excess carbon dioxide emissions. As the water becomes more acidic, the calcium carbonate base of the corals starts to corrode.

Andrew Zimmerman, associate professor of oceanography and geobiology at UF, said fossil fuel pollution is the root of all the human-influenced impact.

Klompmaker examines fossils of ancient crustaceans at the Florida Museum that may hold answers about the future of modern species. Florida Museum of Natural History photo by Jeff Gage

Klompmaker examines fossils of ancient crustaceans at the Florida Museum that may hold answers about the future of modern species.
Florida Museum of Natural History photo by Jeff Gage

“There’s much concern about major loss of species due to global warming on land, but the risk of mass extinction in ocean life is far greater due to combined effects of ocean acidification and global warming,” Zimmerman said.

Slowing the pace of climate change by reducing the release of greenhouse gases is the single most important change that needs to occur, though the positive effects of this change would not be evident for a long time, Behringer said.

However, there are more immediate steps that can be taken to lessen the brunt of direct human impacts on reefs. People who go boating, diving or fishing can take steps to make sure they are treating reefs in a sustainable manner, Behringer said.

For example, overfishing and coral injuries from boat anchors are two problems that can be easily fixed with proper management. Stricter fishing limits and enforcement are needed to ensure that certain areas don’t get overfished, Behringer said.  He also said simply implementing objects like buoys to protect reefs and alter human use patterns can possibly help reduce anchor impact. Behringer is currently working on a study to figure out the best way to tackle the boat anchor problem.

Some students around the UF campus are starting to realize the economic impact of at-risk reefs.

“So many people can be negatively affected by the decline of reefs, whether it’s someone whose job revolves around reefs or just a tourist who wants to enjoy the coral reefs,” said Evan Hill, UF sophomore studying marine sciences.

A quarry with Late Jurassic rocks representing a fossil coral reef in which many crustaceans were found in the Czech Republic. Photo by: Adiël Klompmaker, University of Florida

A quarry with Late Jurassic rocks representing a fossil coral reef in which many crustaceans were found in the Czech Republic. Photo by: Adiël Klompmaker, University of Florida

Klompmaker’s research showing the indisputable correlation between coral reefs and decapod presence has shown how reef deterioration negatively impacts the future seafood supply and the need for direct action. After all, history repeats itself.

“Everyone needs to be aware of it because everyone’s responsible for it,” Zimmerman said.

Clean water as easy as making instant coffee

17 Sep
Kayla Hunt is junior at the University of Florida majoring in Public Relations. Wanting to experiment writing on science and health and environmental topics, she decided Layman's Terms Media would be the perfect outlet. In her free time, she keeps  an informal blog titled Bloggish Gibberish that chronicles her life experiences as a college student.

Kayla Hunt is junior at the University of Florida majoring in Public Relations. Wanting to experiment writing on science and health and environmental topics, she decided Layman’s Terms Media would be the perfect outlet. In her free time, she keeps an informal blog titled Bloggish Gibberish that chronicles her life experiences as a college student.

This is the first of a series of posts by undergraduate journalism and public relations students at the University of Florida. Layman’s Terms Media will serve as a platform for those willing to give science and health communication a try.  By using this blog as a platform, students will get one-one time with an editor and mentor to ease them into one of the areas of communication that are often misunderstood. 

——————————————————–

By: Kayla Hunt

According to UNICEF, contaminated drinking water and lack of sanitation accounts for the death of about 1,800 children under the age of five every day.

In an effort to ease this dilemma, scientists from more than 100 organizations and governments have collaborated with Procter & Gamble’s nonprofit program, Children’s Safe Drinking Water (CSDW), alongside the Center for Disease Control to come up with a purification process so simple kids can do it.

The process is as easy as making instant coffee. First, take about an ounce of this “miracle powder,” put it in roughly 10 liters of water and stir.

In about 30 minutes, the finished result is drinking water that looks like it came right from a Brita filter. Seriously, a 2-year-old can do this.

“We call it a mini-water-treatment plant in a packet,” CSDW Manager Allison Tummon Kamphuis, R.N., M.B.A. said.

She explained that the powder in the ketchup-sized packet is like a municipal water-treatment plant that is portable.

The packet’s ingredients pack a powerful punch against the contamination. The main ingredients are calcium hypochlorite and ferrice sulfate. Calcium hypochlorite kills deadly pathogens, and ferric sulfate sticks to the dirt and other pathogens that aren’t killed by the calcium hypochlorite.

The initiative began in the mid-1990s and by the mid-2000s, the team had perfected the ketchup-sized packet that to this day has saved about 32,000 lives by providing more than 6 billion quarts of clean water.

The Purifier of Water packets, which run at about 10 cents a pop have been used in countries like Haiti, the Dominican Republic, Africa, Kenya, Malawi, Uganda and Pakistan. To this date, the packets have served populations in a total of 71 countries. Tummon Kamphuis said she hopes the miracle packet will help the team reach their goal of saving one life every hour by 2020.

To reach this goal, the team built a new production center was opened in Singapore last year and plans to invest in wide-reaching public awareness campaigns in the near future.

“The real key to us achieving numbers like that and providing that much water and having the estimated health impact that we report is really partnership,” Tummon Kamphuis said.

Sea turtles are Gulf travelers, scientists say

16 Jul
 Loggerhead “exchanges” between study sites. Tracks of satellite-tagged adult female loggerheads (Caretta caretta) 119941 and 119946 during the inter-nesting period in 2012 (A); tracks of satellite-tagged adult female loggerheads 108172 (2011) and 119940 (2012) during the inter-nesting period (B). doi:10.1371/journal.pone.0066921.g002

Loggerhead “exchanges” between study sites.
Tracks of satellite-tagged adult female loggerheads (Caretta caretta) 119941 and 119946 during the inter-nesting period in 2012 (A); tracks of satellite-tagged adult female loggerheads 108172 (2011) and 119940 (2012) during the inter-nesting period (B).
doi:10.1371/journal.pone.0066921.g002

Gulf Loggerheads were always thought to be homebodies.

After the females nested, they would make a home at their local beach. They would never travel too far from familiarity.

But, these  threatened female loggerheads are more curious than scientists once thought.

A new study suggests that the turtles nest in different places–laying eggs on the coast of Louisiana one week and traveling hundreds of miles to make another home in Florida weeks later.

The authors of the U.S. Geological Survey study say that the travel routes–which may be littered with leftover oil and increased predators–pose a greater risk to the sea turtle population. The conservation efforts may need to be modified to reflect the findings.

“The satellite data and our observations on the ground tell the same story: loggerheads in this subpopulation nest at multiple beaches, sometimes hundreds of miles apart,” lead author Kristen Hart, a USGS research ecologist, said.

Co-author and USGS biologist Meg Lamont said that simply protecting beaches that are known to be highly populated with sea turtle nests may not be enough.

“These data show it is not sufficient to just protect habitat around high density nesting beaches – such as the St. Joseph Peninsula – because many turtles that nest on the Peninsula use the entire region from the eastern Florida Panhandle to Louisiana,” said Lamont.

Hart said she and her team are continuing to map out the travel routes by tagging the turtles.

“We are working towards defining areas where sea turtles concentrate their activities at sea, effectively building a map of in-water turtle hotspots,” Hart said. “The more we know about their habitat use, the more questions are raised about their behavior and ability to adapt. We hope to build a better understanding of how frequently turtles return to these same locations, and whether or not they move to new habitats when those locations are impacted. This type of information would be extremely valuable for developing management strategies to help in population recovery.”

The study, “Movements and Habitat-Use of Loggerhead Sea Turtles in the Northern Gulf of Mexico during the Reproductive Period,” was published July 3 in the journal PLOS ONE.

Croaking Cuban frogs Create Competition in South Florida

3 Jun
Cuban Tree Frog. Photo courtesy of www.floridagardener.com

Cuban Tree Frog. Photo courtesy of http://www.floridagardener.com

Southern Florida, particularly the more metropolitan areas such as Miami and Ft. Lauderdale are definitely not known for being quiet areas. The constant honking of horns, people yelling in multiple languages and bold headlines of bizarre news events make South Florida a melting pot of noise.

While I lived there, I would often here screaming arguments ending in “go back where you came from” when cultures clashed. Scientists have found that humans may not be the only ones participating in the battle of “who gets the last word.”

Native tree frogs may be amping up their mating calls to be able to be heard over the invasive Cuban tree frogs that arrived to the state in the 1930s. The Cuban tree frogs likely ended up in Florida as stowaways in shipping crates.

Ecologist Jennifer Tennessen, a graduate student at The Pennsylvania State University, and her colleagues recorded the calls of the Cuban tree frog (Osteopilus septentrionalis) to see how they affected two native species of tree frogs: green tree frogs and pine woods tree frogs.

“We predicted that Cuban tree frog chorusing would interfere most with native tree frogs whose acoustic behaviors were similar,” Tennessen said, “and that these would be the most likely candidates to modify their acoustic behavior to avoid interference.”

Her prediction was right. After playing recordings of the Cuban tree frogs, green tree frogs (who have a call similar to Cuban tree frogs) in Everglades National Park doubled their number of calls per minute. This change did not occur in pine woods tree frogs and researchers predict this is because their call is more easily distinguishable from the others.

“By increasing their call rate, green tree frogs may be able to increase the likelihood that potential mates can detect them amidst the noise,” Tennessen said. “This response, however, likely comes at the cost of requiring additional energy, which could be detrimental as it may divert energy away from other important functions like digestion and immune function.”

She also explained that because the green tree frogs are doubling their call rate, predators may find them more easily. The competing call of the Cuban tree frog could also disrupt the soundscape of other organisms who rely on sound for survival.