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Sunday, August 18, 2024

 

A Coast Guard Lifesaving Hero Rests in an Unmarked Grave

Lifesaving crew lands survivors of a wreck (USCG illustration)
Lifesaving crew lands survivors of a wreck (USCG illustration)

Published Aug 18, 2024 11:06 AM by U.S. Coast Guard News

 

 

[By Capt. W. Russell Webster (USCG, ret'd)]

In an unassuming burial plot in a rural cemetery in Pueblo, Colorado, the grave of a Coast Guard hero, Joseph Doyle, remains unadorned — no marker, stone, or flag. Joseph Doyle was born in New York on April 17, 1836. When he was 42 years old, he led two famous rescues during his tenure as the Keeper of the U.S. Life-Saving Station in Charlotte, New York, a post to which he was appointed on July 11, 1878. 

On Sept. 11, 1878, around 9:30 p.m., the schooner E.P. Dorr of Chicago stranded about one mile west of Doyle’s station. In a raging rainstorm, with six men and one woman aboard, the survivors were brought to shore “under the steady oar of the keeper.” Within a few months, on October 23rd, when the schooner Star from Mill Point, Ontario, foundered in Doyle’s area of responsibility he again showed “great skill and bravery.” Doyle received the prestigious Gold Lifesaving Medal for his heroism in those two rescues. 

Doyle served as the Keeper at Charlotte for 16 years. He is acknowledged as one of the U.S. Life-Saving Service’s most distinguished surfmen. The service was a forerunner agency of the Coast Guard.

On June 8, 2019, the Coast Guard commissioned the Fast Response Cutter Joseph Doyle at Coast Guard Sector San Juan, Puerto Rico. The FRCs are part of the Sentinel-Class, which are named for enlisted heroes. 

Despite these accolades, no headstone or appropriate grave marking distinguish Doyle’s final resting site. Why is this? It could be that Doyle had no family to see to this. But whatever the reason, the Coast Guard has been notified and has assigned a project officer to investigate the oversight. 

Little is known about Joseph Doyle’s early life. He lived a quiet and unassuming existence near his Canadian homestead until 17 when he went to Oswego, New York, to build boats, trade fruit and fish between U.S. and Canadian ports. Author Christopher Haven noted, “It was while engaged in this business that he was capsized by the carelessness of his mate and swam through heavy surf to Yorkshire Island, where he lived for eighteen days until rescued by a passing schooner.” 

One can only imagine Doyle’s solitary experience on the desolate island at the far end of Lake Ontario. His shipwreck experience likely motivated him to remain near the water and pursue equally dangerous adventures as a rescuer on behalf of others in similar circumstances. 

After a series of maritime tragedies at sea and on the Great Lakes in 1870 and 1871, and an accompanying public outcry, Congress authorized the U.S. Department of the Treasury to establish lifesaving stations and crews of paid surfmen in 1871. Doyle joined the ranks of the federal ‘storm fighters’ from the U.S. Life-Saving Service, established by President Rutherford Hayes on June 18, 1878. 

The Life-Saving Service created 280 lifesaving stations along the Atlantic and Pacific coasts, and the Great Lakes. By 1915, when the service was assimilated into the Coast Guard, “the rescuers of the United States Life-Saving Service — fishermen, lobstermen, crabbers, and others who grew up along America’s shores — had saved more than 186,000 lives, becoming collectively the greatest institution of their kind in the world.” 

Doyle was appointed federal Keeper of the Charlotte, New York, Life-Saving Service Station and his first day on the job was on July 24, 1878. Within three months, he would lead his station crews on two significant rescues. Nothing about becoming a lifesaver was easy. Each day was rigorously scripted, and featured a different drill to practice, and housekeeping chores like cooking were rotated.

 

According to the U.S. Life-Saving Service Heritage Association website: 

On clear days, from sunrise to sunset, a surfman on day watch always manned the lookout tower.  At night and on foggy days, the men walked beach patrol. They would light Coston signal flares to warn off ships straying too close to the shore. While men with small-boat-handling experience were wanted in the service, it took extensive training and continual practice to be able to successfully launch a lifeboat or surfboat in heavy seas and shoot the Lyle Gun to a ship offshore to set up the breeches buoy. 

These daily activities provided consistency throughout the service. Mondays and Thursdays were devoted to drilling with equipment needed for rescues attempted from the beach such as the Lyle Gun and Breeches Buoy. Tuesdays featured lifeboat and surfboat drills with at least a half an hour using the oars. Wednesday was signaling day where crew practiced with flags and flares for communications with stranded ships. Friday’s training was designated for giving first aid to drowned mariners. Saturdays were devoted to the grounds and station upkeep and Sundays were a day of rest. This training would prove essential to what followed. 

On Wednesday, Sept. 11, 1878, the 120-foot-long wooden schooner E.P. Dorr left Oswego, New York, loaded with coal, and was later stranded about 1,200 yards offshore and a mile west of Life-Saving Service Station No. 4. Soon thereafter, Keeper Doyle was walking a night beach patrol, and saw a torch off a short distance on Lake Ontario and according to the station log, “I hurried back to the station, and I soon had mustered the crew and put the surf boat on the wagon, and together with assistance from those gathered around, drew the wagon by hand up the beach abreast of the vessel. By this time, she had stranded and was burning torch.” 

Keeper Doyle and his crew maneuvered the heavy rescue boat down a 200-foot embankment to the best point to launch the boat to get to the wreck. The weather was horrific with dark skies, steady rain, and tumultuous seas. The Keeper and his crew were quickly away and encountering “fearful seas.” By 11:15 p.m., the surfboat reached the wreck and found it “lying head to the seas” with water rushing along her sides and “tumbling in around the stern.” 

Doyle constantly maneuvered the boat to keep it close to the vessel. Their efforts were extremely tiring and were prolonged as they struggled to convince the wreck’s crew and a woman to get onboard the tossing lifeboat. The sea “rose upon the great swell and the woman, dropped over the side by the sailors, was caught by the surfmen’s strong arms. The boat then fell away. On another run up alongside, the mate jumped for the boat, fell partly overboard, and then was hauled in. Just then a terrible sea swept the boat 50-feet astern.” 

The life-saving crew had stayed close to the schooner with a line that parted after the mate fell on the boat “and threw her up on the stern in an almost perpendicular position. This nearly pitched her end over end. To add to the terror, the same blow that flung the boat up on her stern broke out the starboard scull-hole in which the steering oar lay.” Doyle improvised and lashed down a new oar near midships and again took control of the rescue. 

Despite the late hour, the storm and the darkness, a large crowd of men and women had gathered on the beach. They saw the boat, with the six men and the woman aboard, drive swiftly toward the beach under the steady oar of the keeper. At length her bows grated on the sand, and it was safely over. 

Within six weeks, Capt. Doyle again demonstrated great skill and bravery involving the wreck of the schooner Star from Mill Point, Ontario, on Oct. 23, 1878. Fortune would find the crew of Station No. 4 drilling and practicing signaling. The Star, laden with 12,000 bushels of wheat and valued at $7,500 (roughly $202,000 today), tried to enter Charlotte harbor during a fierce northwest gale, but missed the entrance and dropped her anchors to ride out the storm. At 6 p.m., when the decks were awash, the seven-man crew climbed into her rigging for safety. The night was very dark, and the rain fell in torrents. The sea ran so high that it dashed in the windows of the lower lighthouse and leaped over the tower. This prevented the lighting of the lamp. 

Capt. Doyle and his men were assembled on the beach and could only watch due to the conditions. It was equally impossible to reach the wreck with a shot-line. All Doyle could do was to wait until the wind direction changed. The station lit their large beach lantern. Signals were continuously exchanged with the schooner to encourage the stranded crew. 

About 11 p.m., Keeper Doyle decided to risk a launch. The boat, “dizzily lifting and falling cleaved its way with a strong roll of oars. It was some time, but the skeleton masts and rigging were seen dimly looming above the sunken hull in the darkness. The seven exhausted men, still in the crosstrees of the foremast eventually got into the boat and at ten minutes after midnight were landed on the beach. The schooner was demolished by the waves.” 

The Gold and Silver Lifesaving medals were established in 1874 by an Act of Congress, which authorized the Secretary of the Treasury to bestow the medals upon individuals who endanger their own lives in saving or endeavoring to save lives from the perils of the sea, within the United States, or upon any American vessel. On August 2, 1879, Keeper Doyle would be awarded the prestigious Gold Lifesaving Medal for the two rescues. 

After 16 years of service, Captain Doyle was medically retired on Oct. 23, 1893, from “injuries received in service.” Approximately 11 percent of Keepers from 1871 to 1913 left service due to reasons of health. At the time Doyle retired, the USLSS had no formal “retirement benefits and very little compensation in case of duty related injury,” likely contributing to an average service time for Keepers of eight years. 

A newspaper report detailing his injuries noted that “during the year 1891, he was disabled by hernia and as all men in the lifesaving service over the age of 55 years of age must pass a physical every year.” The account went on to indicate that, “he will be retained on the payroll for two years as is customary in cases where captains and surfmen are disabled in the service.” 

Little is known about Doyle beyond the rescue station’s logs and abbreviated newspaper accounts regarding the rescues in which he participated. According to Coast Guard Atlantic Area Historian, Dr. William Thiesen, “Doyle is the only hero without background information because his service predates the advent of personnel records.” Doyle “found a large boat building establishment at Charlotte.” Here, he would continue building a “non-sinkable, non-capsizable lifeboat, the model of which he has been working on for several years.” 

Doyle would eventually head West and purchase and manage several gold mines in Colorado. He died in Pueblo, Colorado, on Aug. 20, 1905, at the age of 69 and is buried in Mountain View Cemetery in Pueblo. 

The U.S. Coast Guard, the successor rescue organization to the Life-Saving Service, would go on to commission a new fast response cutter (FRC) in his honor in 2019 in San Juan, Puerto Rico. FRCs have been named for enlisted heroes. Ironically, no headstone marks Doyle’s remains in the Colorado cemetery where he is buried. An image from Findagrave.com indicates “Joseph Doyle is buried with Gar Olin. Joseph has no marker."

Captain Webster is an advisory board member of the U.S. Life Saving Service Heritage Association. He was recognized by the Foundation for Coast Guard History for his decades of commitment to service heritage in 2012. Webster, a recognized search and rescue expert, was an invited speaker at the 2024 Coast Guard SAR workshop.

This article appears courtesy of The Long Blue Line and may be found in its original form here

The opinions expressed herein are the author's and not necessarily those of The Maritime Executive.

Monday, August 12, 2024

As war halts Israel permits, Palestinians return to farming

Agence France-Presse
August 12, 2024 

Hussein Jamil is one of dozens of Palestinian farmers who have set up greenhouses in the West Bank after they lost permission to work in Israel in the wake of the Gaza war (Zain JAAFAR/AFP)

Hussein Jamil held a permit to work in Israel for 22 years until the war in Gaza broke out. Now, after setting up a greenhouse in a West Bank village, he swears he'll never go back.

Harvesting his tomatoes in the occupied West Bank, the 46-year-old says his former Israeli boss has already called several times to ask him to return.

"But I told him that I would never go back to work there," he says in Bayt Dajan near Nablus, the northern West Bank's commercial centre.

There, dozens of men have returned to the traditional pursuit of tilling the land, rather than board buses to queue at the heavily guarded checkpoints that lead into Israel.

"It's a very useful job and above all safer" than working in Israel, says Jamil, as he tends to his plants with his sons.

Israel stopped issuing work permits for Palestinians after the October 7 attack by Hamas, the Islamist movement that rules in the Gaza Strip, which resulted in the deaths of 1,198 people, mostly civilians, according to an AFP count based on official Israeli data.

Israeli reprisals in Gaza have so far left 39,790 dead, according to the health ministry of the Hamas-run territory, which does not give a breakdown of civilians and fighters killed.

Jamil was one of 200,000 Palestinians from the West Bank who were working in Israel legally or illegally, according to the Palestinian General Confederation of Labour, and who lost their livelihoods overnight.

Salaries in Israel are more than double what Palestinians can make in the occupied territories, according to the World Bank.


Many of those workers are now busy in the greenhouses that have sprouted up in recent months on the hillsides where, Palestinian elders say, their ancestors once grew wheat.

Working this way, "we are independent and peaceful," says Jamil, adding: "It's much better than working in Israel. Here we work on our land."

- West Bank violence -

Economic prospects have dived since the war, with West Bank unemployment leaping from 12.9 percent to 32 percent in the final three months of 2023.

Some 144,000 jobs have been lost in the territory, many because of rising violence that has prompted the army to block roads, strangling economic activity.

Since October 7, at least 617 Palestinians have been killed in the West Bank by the Israeli army or settlers, according to an AFP count based on official Palestinian data.

At least 18 Israelis, including soldiers, have died in Palestinian attacks in the same period, according to official Israeli data.

Every day, around $22 million in income is lost in the West Bank, according to International Labor Organization (ILO) estimates.

In Bayt Dajan alone, 300-350 men worked in Israel out of a population of 5,000.

Mazen Abu Jaish, 43, who spent 10 years working in Israel, took his time before deciding to pick up his shovel and rake and set up a tomato greenhouse.

"We waited, thinking that we would get our jobs back again after the war," he told AFP.

But unlike previous wars in Gaza, which never lasted more than a few weeks, the current conflict is fast approaching its first anniversary.

"So we ended up getting together with 35 other people from the village and we decided to start farming rather than keep waiting," says Jaish.

Since October 7, 15 hectares of Bayt Dajan have been covered by greenhouses with tomatoes and cucumbers, grown by people who used to work in Israel, municipal officials say.

Mohammad Ridwan, a member of the municipal council, sees other advantages as well, as the greenhouses are in Area C -- the West Bank land controlled solely by Israel, and vulnerable to being used for illegal Israeli settlements.

Area C makes up 59 percent of the West Bank, and 63 percent of its agricultural land.

The Norwegian Refugee Council also says that Israel had denied Palestinians access to 99 percent of the land in Area C, in many cases preventing them from growing their own fields there.

"Local unemployed people have found work and above all, we are preserving land in Area C," said Ridwan.

Saturday, August 03, 2024


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Mequite Flats Dunes, Death Valley National Park. Photo: Jeffrey St. Clair.

The earth gets hotter, as rich nations continue their coal, oil and gas burning spree, while those who urge a course correction get…thrown into prison. The latest casualty of a judiciary dedicated to preserving ecocidal plutocracy is Extinction Rebellion’s Roger Hallam, sentenced to five years in jail in the U.K. for his efforts to stop the corporate insanity defiling the planet. You may think “defiling” is a strong word. But with a heat index of 144 degrees Fahrenheit in Dubai July 16, multiple heat domes baking enormous swaths of the globe this month at record-smashing temperatures for record-smashing lengths of time, and the four hottest days IN A ROW ever recorded in July, you might want to thank Hallam for attempting to arrest this calamity. But if you do, be prepared for the violent, most rapacious aristo-oligarchs in human history – especially those peopling the top echelons of giant oil corporations – to try to shut you up.

Those moneyed bigwigs have been fiendishly effective when it comes to tarring the climate movement and climate science as junk. It seems the hotter the planet becomes, the more undeniable the evidence of our senses and statistics, the more these fantastically wealthy polluters double down on their planetary pyromania. They do not care what happens to the next generation and suffer from the delusion that they will be immune to the climate fiasco unfolding now. So they go on pooh-poohing extreme weather and dangerous heat and leading the best congress their money can buy by the nose.

Back to Hallam. His crime? In his own words: “Giving a talk on civil disobedience as an effective evidence-based method for stopping the elite from putting enough carbon in the atmosphere to send us to extinction.” Hallam recounts in his recent posts that when, during his trial, he described the climate apocalypse we face – “floods, wildfires, mass heat deaths” – the judge muzzled him. “He sent out the jury and threatened to arrest me if I didn’t stop.” Hallam kept talking. The jury was kept out of the courtroom.

The accused cited the Dutch Supreme Court ruling “that all governments have a legal obligation to prevent the emissions of greenhouse gases.” When the jury returned, Hallam referred to case law, but the judge ordered the jurors to disregard him, even as he highlighted “the objective danger I’ve experienced as a farmer unable to grow food.” Indeed, some experts argue that by the end of the century, the much warmer earth will be unsuitable for growing wheat. So I guess those alive then will have to get their carbs from something other than bread.

 Things are bad for this planet, our only home. In the past two years, global temps have shot way up, past scientific predictions, while ocean heat has blasted through all recorded precedents. According to the New York Times April 10, “the ocean has now broken temperature records every day for more than a year.” This kills marine life, causes coral bleaching and impacts weather, already severely eccentric and out of kilter from atmospheric warming. “Biblical flooding, scorching heat, collapsing grid systems, animals crumbling, waters rising, crops wilting, economy on the brink and millions displaced,” wrote Robert Hunziker in CounterPunch June 21. “Welcome to the future of climate change…Pakistan.” To prevent that future from spreading to other parts of the globe, we must stop burning fossil fuels, pronto.

This article cites an interview from Inside Climate News June 8, entitled “As Temperatures in Pakistan Top 120 Degrees, There’s Nowhere to Run.” This is something no nation, no leader wants to invite. Right, Donald “I Dig Coal” Trump? We can assume the Dems are somewhat on board (vide: Kamala “Prosecuted Polluters” Harris who has specifically addressed this matter of our collective fate), but the GOP is not. However, Trump’s surprisingly heartening plan to encourage Beijing to plant new industries here in the U.S. could easily include what China excels at, namely renewables.

Producing renewables means big bucks and entails lots of new jobs, and for GOP skeptics who want to boost fossil fuels, well hello? Wasn’t the multi-week, crushing heat dome over North America in July enough for you? Or do you actually want this heat/hurricane/wildfire catastrophe to get worse? It’s not good for business when electrical grids crash, whole cities like Houston lose power and sweltering residents decide, in large numbers, to move elsewhere. Or is the GOP content to let the south and west become uninhabitable?

Pakastani environmental lawyer Rafay Alam is quoted by Hunziker: “There is a significant denialism on climate change in places like the United States…It’s extremely infuriating to see people who’ve participated in this global warming deny it, deny any accountability, try and move on as if nothing’s happened and try to continue to make money and drive that bottom line.” Alam says multitudes in the Global South share this view. But the problem is that waking up your average American businessman is almost impossible, his uninformed mind is already made up, and climate doom, homo boobus thinks, is bad fer bizness. Well, it IS bad for business, at least for business as it’s conducted now, but it’s good for a whole slew of new, green businesses. However, no American entrepreneur wants to hear that what he does will ultimately end the world as we know it, why, that could scare off customers…almost as fast as a hurricane blows away their roofs.

One can always hope, and maybe we’ll get lucky, that the latest shocking heat trends are a fluke and that climate scientists’ more conservative – though equally devastating in the long term – predictions prove correct. Activists, however, won’t sit on their hands and wait. Take Hallam again. Prison guards, he posted July 22, have one main maxim: “Break the rules and you will be punished.” That, Hallam writes, corresponds to “politics at the end of the world. You can vote for whoever you want to as long as they don’t stop the project to destroy the human race over the next two decades…Civilizations…commit suicide, to use historian Arnold Toynbee’s famous phrase. Actually, they all destroy themselves eventually…because they are so sure they will not destroy themselves.”

Hallam argues that currently capital “has escaped control by the state…And soon capital will lose…” That’s because its externalities, i.e. carbon pollution, ruin the livable world. Historically, capital refused to pay for its externalities, for destroying and deforming the earth, and there’s no sign that’s about to change, even though, as of July 23 – just for instance – the whole ocean basin of the North Atlantic experiences a heatwave up 1.5 degrees Celsius above normal. This, while ocean temps have shot up 16 degrees Fahrenheit above average. The ocean is vast. It takes lots of carbon pollution to do this. But that’s what our vaunted, unchecked, rampaging, late capitalism has wrought, and that’s merely one example among hundreds.

Another for instance: In May and June, a heat dome stalled over Mexico and temps shot up over 113 degrees Fahrenheit, killing dozens of people, while bats, birds and monkeys got so hot they fell dead from the trees. This is not normal. This is life-threatening. It did not happen in the 20th century; back then summers were hot, but not nearly 100 degrees Fahrenheit for weeks on end on, say, the North American East Coast. If we want to arrest this disaster, business as usual must rapidly alter. Such a prescription may be anathema to plutocrats, but they, too, should consider what the world will be like in mere decades. Is it really worth gambling dying of heat prostration, or drowning in a flood, or being swept away by a hurricane? Because a broken climate will not spare the rich. It will kill them, too.

Eve Ottenberg is a novelist and journalist. Her latest book is Busybody. She can be reached at her website.

Tuesday, July 09, 2024

 

Could a dietary fiber supplement offer long-awaited treatment for food allergy sufferers?




UNIVERSITY OF MICHIGAN






A study from the University of Michigan has identified a potential new treatment for food allergies in inulin, a naturally occurring plant fiber commonly used as a supplement, a prebiotic in soda, a replacement for sweeteners and for other products and purposes.

 

In what appears to be a major advancement that offers the promise of relief to food allergy sufferers around the world, the paper published in Nature Materials describes inulin gel-based oral immunotherapy's success in stopping allergic reactions in mice by, in part, targeting bacteria in the gut. The gel prevented severe allergic reactions during and even after being administered, including reactions to common triggers such as peanuts, egg white and milk.

 

The research, conducted by an international team of scientists in pharmaceutical sciences, biomedical and chemical engineering, internal medicine and other specialties, proposes that inulin gel addresses the root cause of food allergies, rather than just managing symptoms. 

 

The research was led by James Moon from U-M's College of Pharmacy. He has  studied inulin's potential to treat disease for years. He said inulin gel-based therapy holds great promise due to its safety profile and potential for large-scale production.

 

"Inulin, a widely consumed dietary fiber recognized as safe by the FDA, forms the basis of the gel, making it a feasible and translatable option for clinical use," said Moon, whose lab develops drug delivery technologies combined with pharmaceutics and engineering to identify ways for  the body to fight disease. Moon is the J. G. Searle Professor of Pharmaceutical Sciences.

 

While further research and clinical trials are needed to test the findings, the study, which emphasized the role of the small intestine's microbiota and metabolites in food allergy regulation, opens potentially life-changing new avenues for therapeutic interventions, he said. Other, newer treatment options have seen low uptake due to adverse reactions and spotty effectiveness.

 

As many as 1 in 3 adults and more than 1 in 4 children have food allergies, a life-altering condition that is getting harder to manage as allergens can be hidden in a variety of foods and drinks, according to the Centers for Disease Control and Prevention.

 

Food allergies have become a significant concern globally, especially in developed nations, as accidental exposure to allergens can trigger severe reactions, including death.

 

The research found that inulin gel, specifically formulated with an allergen, normalized the imbalanced intestinal microbiota and metabolites in allergic mice. This normalization led to the establishment of allergen-specific oral tolerance, effectively suppressing allergic reactions to various food allergens. 

 

"The therapy showed long-lasting protection even after the cessation of treatment, indicating its potential for sustained relief from food allergies," said Fang Xie, a graduate student who also led the studies.

 

Inulins are a group of polysaccharides and natural storage carbohydrates in more than 36,000 plant species, including wheat, onion, asparagus and chicory, which is most often used to manufacture supplements.

 

The fiber is also the subject of research and clinical trials investigating its role in treating or leading to better understanding of cancerous tumors, gastrointestinal illnesses, diabetes and other diseases. 

 

The researchers whose work went into the study represent institutions around the world, including the University of Texas M.D. Anderson Cancer Center,  Dongguk University, Seoul, Republic of Korea, Michigan State University, the University of Washington and WPI Immunology Frontier Research Center, Osaka University, Japan. Additionally, researchers from the University of Michigan represent the Biointerfaces Institute, the departments of Pharmaceutical Sciences, Biomedical Engineering, Chemical Engineering and Internal Medicine and the Mary H. Weiser Food Allergy Center.

 

Disclaimer: Moon declares financial interests for board membership, as a paid consultant, for research funding, and/or as an equity holder in EVOQ Therapeutics and Saros Therapeutics, and U-M has a financial interest in EVOQ Therapeutics, Inc. The other authors declare no competing interests.

 

https://doi.org/10.1038/s41563-024-01909-w

 

PLANTOLOGY

Archaeologists report earliest evidence for plant farming in east Africa



WASHINGTON UNIVERSITY IN ST. LOUIS

Kakapel 

IMAGE: 

LOCATED IN THE FOOTHILLS OF MOUNT ELGON NEAR THE KENYA-UGANDA BORDER, KAKAPEL ROCKSHELTER IS THE SITE WHERE WASHU ARCHAEOLOGIST NATALIE MUELLER AND HER COLLABORATORS HAVE UNCOVERED THE EARLIEST EVIDENCE FOR PLANT FARMING IN EAST AFRICA. 

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CREDIT: STEVEN GOLDSTEIN




A trove of ancient plant remains excavated in Kenya helps explain the history of plant farming in equatorial eastern Africa, a region long thought to be important for early farming but where scant evidence from actual physical crops has been previously uncovered.

In a new study published July 10 in the Proceedings of the Royal Society B, archaeologists from Washington University in St. Louis, the University of Pittsburgh and their colleagues report the largest and most extensively dated archaeobotanical record from interior east Africa.

Up until now, scientists have had virtually no success in gathering ancient plant remains from east Africa and, as a result, have had little idea where and how early plant farming got its start in the large and diverse area comprising Kenya, Tanzania and Uganda.

“There are many narratives about how agriculture began in east Africa, but there’s not a lot of direct evidence of the plants themselves,” said WashU’s Natalie Mueller, an assistant professor of archaeology in Arts & Sciences and co-first author of the new study. The work was conducted at the Kakapel Rockshelter in the Lake Victoria region of Kenya.

“We found a huge assemblage of plants, including a lot of crop remains,” Mueller said. “The past shows a rich history of diverse and flexible farming systems in the region, in opposition to modern stereotypes about Africa.”

The new research reveals a pattern of gradual introductions of different crops that originated from different parts of Africa.

In particular, the remnants of cowpea discovered at Kakapel rock shelter and directly dated to 2,300 years ago constitute the earliest documented arrival of a domesticated crop — and presumably of farming lifeways — to eastern Africa. Cowpea is assumed to have originated in west Africa and to have arrived in the Lake Victoria basin concurrent with the spread of Bantu-speaking peoples migrating from central Africa, the study authors said.

“Our findings at Kakapel reveal the earliest evidence of domesticated crops in east Africa, reflecting the dynamic interactions between local herders and incoming Bantu-speaking farmers,” said Emmanuel Ndiema from the National Museums of Kenya, a project partner. “This study exemplifies National Museums of Kenya’s commitment to uncovering the deep historical roots of Kenya’s agricultural heritage and fostering an appreciation of how past human adaptations can inform future food security and environmental sustainability.”

Constantly changing landscape

Situated north of Lake Victoria, in the foothills of Mount Elgon near the Kenya-Uganda border, Kakapel is a recognized rock art site that contains archaeological artifacts that reflect more than 9,000 years of human occupation in the region. The site has been recognized as a Kenyan national monument since 2004.

“Kakapel Rockshelter is one of the only sites in the region where we can see such a long sequence of occupation by so many diverse communities,” said Steven T. Goldstein, an anthropological archaeologist at the University of Pittsburgh (WashU PhD ’17), the other first author of this study. “Using our innovative approaches to excavation, we have been uniquely able to detect the arrival of domesticated plants and animals into Kenya and study the impacts of these introductions on local environments, human technology and sociocultural systems.”

Mueller first joined Goldstein and National Museums of Kenya to conduct excavations at the Kakapel Rockshelter site in 2018. Their work is ongoing. Mueller is the lead scientist for plant investigations at Kakapel; the Max Planck Institute of Geoanthropology (in Jena, Germany) is another partner on the project.

Mueller used a flotation technique to separate remnants of wild and domesticated plant species from ashes and other debris in a hearth excavated at Kakapel. Although she has used this technique in her research in many other parts of the world, it is sometimes difficult to use this approach in water-scarce locations — so it has not been widely used in east Africa.

The scientists used direct radiocarbon dating on carbonized seeds to document the arrival of cowpea (also known as the black-eyed pea, today an important legume around the world) about 2,300 years ago, at about the same time that people in this area began to use domesticated cattle. Researchers also found evidence that sorghum arrived from the northeast at least 1,000 years ago. They also recovered hundreds of finger millet seeds, dating back to at least 1,000 years ago. This crop is indigenous to eastern Africa and is an important heritage crop for the communities that live near Kakapel today.

One unusual crop that Mueller uncovered was field pea (Pisum), burnt but perfectly intact. Peas were not previously considered to be part of early agriculture in this region. “To our knowledge, this is the only evidence of peas in Iron Age eastern Africa,” Mueller said.

The exceptional pea is pictured in the paper, and it represents its own little mystery. “The standard peas that we eat in North America were domesticated in the near east,” Mueller said. “They were grown in Egypt and probably ended up in east Africa by traveling down the Nile through Sudan, which is also likely how sorghum ended up in east Africa. But there is another kind of pea that was domesticated independently in Ethiopia called the Abyssinian pea, and our sample could be either one!”

Many of the plant remnants that Mueller and her team found at Kakapel could not be positively identified, Mueller said, because even modern scientists working in Kenya, Tanzania and Uganda today don’t have access to a good reference collection of samples of plants from east Africa. (As a separate project, Mueller is currently working on building such a comparative collection of Tanzania’s plants.)

“Our work shows that African farming was constantly changing as people migrated, adopted new crops and abandoned others at a local level,” Mueller said. “Prior to European colonialism, community-scale flexibility and decision-making was critical for food security — and it still is in many places.”

Findings from this study may have implications for many other fields, Mueller said, including historical linguistics, plant science and genetics, African history and domestication studies.

Mueller is continuing to work on identifying the wild plants in the assemblage, especially those from the oldest parts of the site, before the beginning of agriculture. “This is where human evolution occurred,” Mueller said. “This is where hunting and gathering was invented by people at the dawn of time. But there has been no archaeological evidence about which plants hunter-gatherers were eating from this region. If we can get that kind of information from this assemblage, then that is a great contribution.”

One unusual crop that Mueller uncovered was field pea, burnt but perfectly intact. Peas were not previously considered to be part of early agriculture in this region. 

CREDIT

Courtesy of Proc. Royal Soc. B


 How a plant app helps identify the consequences of climate change


By leveraging millions of time-stamped observations, researchers can identify plant rhythms and ecological patterns year-round


Peer-Reviewed Publication

GERMAN CENTRE FOR INTEGRATIVE BIODIVERSITY RESEARCH (IDIV) HALLE-JENA-LEIPZIG

The Flora Incognita app makes it easy to identify plants with a smartphone. 

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THE FLORA INCOGNITA APP MAKES IT EASY TO IDENTIFY PLANTS WITH A SMARTPHONE.

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CREDIT: FLORA INCOGNITA



Plants are known to respond to seasonal changes by budding, leafing, and flowering. As climate change stands to shift these so-called phenological stages in the life cycle of plants, access to data about phenological changes – from many different locations and in different plants – can be used to draw conclusions about the actual effects of climate change. However, conducting such analyses require a large amount of data and data collection of this scale would be unthinkable without the help of citizen scientists. “The problem is that the quality of the data suffers when fewer people engage as citizen scientists and stop collecting data,” says first author Karin Mora, research fellow at Leipzig University and iDiv.

Mobile apps like Flora Incognita could help solve this issue. The app allows users to identify unknown wild plants within a matter of seconds. “When I take a picture of a plant with the app, the observation is recorded with the (exact) location as well as a time stamp,” explains co-author Jana Wäldchen from the Max Planck Institute for Biogeochemistry (MPI-BGC), who developed the app with colleagues from TU Ilmenau. “Millions of time-stamped plant observations from different regions have been collected by now.” Although satellite data also records the phenology of entire ecosystems from above, they do not provide information about the processes taking place on the ground.

Plants show synchronised response

The researchers developed an algorithm that draws on almost 10 million observations of nearly 3,000 plants species identified between 2018 and 2021 in Germany by users of Flora Incognita. The data show that each individual plant has its own cycle as to when it begins a flowering or growth phase. Furthermore, the scientists were able to show that group behaviour arises from the behaviour of individuals. From this, they were able to derive ecological patterns and investigate how these change with the seasons. For example, ecosystems by rivers differ from those in the mountains, where phenological events start later.

The algorithm also accounts for the observational tendencies of Flora Incognita users, whose data collection is far from systematic. For example, users record more observations on the weekend and in densely populated areas. “Our method can automatically isolate these effects from the ecological patterns,” Karin Mora explains. “Fewer observations don’t necessarily mean that we can’t record the synchronisation. Of course, there are very few observations in the middle of winter, but there are also very few plants that can be observed during that time.”

It is known that climate change is causing seasonal shifts – for example, spring is arriving earlier and earlier. How this affects the relationship between plants and pollinating insects and therefore potentially also food security is still being subject to further research. The new algorithm can now be used to better analyse the effects of these changes on the plant world.

 

This study was funded by the Deutsche Forschungsgemeinschaft (DFG; FZT-118) and the iDiv Flexpool.

LGNet revolutionizes plant disease detection for enhanced crop protection



NANJING AGRICULTURAL UNIVERSITY THE ACADEMY OF SCIENCE
Fig.5 

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THE ACCURACY OF EACH EPOCH.

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CREDIT: THE AUTHORS




A research team has developed LGNet, a dual-branch network that combines convolutional neural networks (CNNs) and visual transformers (VTs) for plant disease identification. LGNet effectively fuses local and global features, achieving state-of-the-art recognition accuracies of 88.74% on the AI Challenger 2018 dataset and 99.08% on the self-collected corn disease dataset. This innovative approach enhances disease sensing capabilities and offers the potential for the development of efficient and robust plant disease recognition models, which are crucial for improving agricultural production and ensuring crop safety in diverse environments.

Safeguarding agricultural production is vital for economic growth, as plant diseases significantly threaten crop yields. The traditional methods of identifying plant diseases, which rely  on the farmers' experience, are time-consuming and inadequate for large-scale cultivation. Recent advancements in image processing and deep learning have improved plant disease recognition, yet existing methods using only CNNs or VTs fall short due to their limited feature perception.

study (DOI: 10.34133/plantphenomics.0208) published in Plant Phenomics on 21 Jun 2024, proposes LGNet, a dual-branch network combining CNNs and VTs that enhances both local and global feature extraction, achieving state-of-the-art performance on major datasets.

The research divided LGNet's parameters into two parts for training, utilizing pretrained weights on ImageNet 1k for the dual-branch backbone network and fine-tuning with different learning rates. The model was optimized with SGD, momentum, and weight decay, and trained on a Windows 11 system with an NVIDIA GeForce RTX 3090 GPU and PyTorch. For evaluation purpose, cross-entropy loss was used, while online data augmentation enhanced generalization. LGNet's performance was compared to single models ConvNeXt-Tiny and Swin Transformer-Tiny. The initial training accuracies were high for all models, but LGNet's accuracy improved significantly, surpassing the others by 1-2%. On the AI Challenger 2018 and SCD datasets, LGNet achieved 88.74% and 99.08% accuracy, respectively, outperforming the single models. Ablation experiments showed that both the AFF and HMUFF modules enhanced performance, with the full LGNet model achieving the best results, demonstrating the effectiveness of the dual-branch network and feature fusion techniques.

According to the study's lead researcher, Xin Zhang, “The development of robust plant disease recognition models, and improving the generalization ability of these models in real-world environments, is highly important for agricultural production.”

In summary, this study presents LGNet, a dual-branch network combining CNNs and VTs for enhanced plant disease identification. Future research will focus on knowledge distillation to create lightweight, high-performance models for mobile deployment and on obtaining more real-world data to enhance model robustness, thereby improving precision agriculture and ensuring crop safety.

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References

DOI

10.34133/plantphenomics.0208

Original Source URL

https://doi.org/10.34133/plantphenomics.0208

Funding information

This study was supported by the National Key Research and Development Program of China (2021YFE0113700), the National Natural Science Foundation of China (32360705;31960555), the Guizhou Provincial Science and Technology Program (2019-1410;HZJD[2022]001), the Outstanding Young Scientist Program of Guizhou Province (KY2021-026), and the Program for Introducing Talents to Chinese Universities (111 Program; D20023).

About Plant Phenomics

Plant Phenomics is an Open Access journal published in affiliation with the State Key Laboratory of Crop Genetics & Germplasm Enhancement, Nanjing Agricultural University (NAU) and published by the American Association for the Advancement of Science (AAAS). Like all partners participating in the Science Partner Journal program, Plant Phenomics is editorially independent from the Science family of journals. Editorial decisions and scientific activities pursued by the journal's Editorial Board are made independently, based on scientific merit and adhering to the highest standards for accurate and ethical promotion of science. These decisions and activities are in no way influenced by the financial support of NAU, NAU administration, or any other institutions and sponsors. The Editorial Board is solely responsible for all content published in the journal. To learn more about the Science Partner Journal program, visit the SPJ program homepage.