A foodweb model to explore uncertainties in the South Georgia shelf pelagic ecosystem

Posted On May 9 2021 by

first_imgFoodweb models provide a useful framework for compiling data on biomass, production, consumption and feeding relationships. They are particularly useful for identifying gaps and inconsistencies in the data, and for exploring plausible scenarios of change. We compiled data on the pelagic foodweb of the South Georgia shelf, which is one of the most intensively studied areas in the Southern Ocean. The data suggest that current average annual copepod production is three times that of Antarctic krill and that flying seabirds and fish are, respectively, responsible for 25% and 21% of local krill consumption. The most striking inconsistency was that estimated consumption of fish was 5 times their estimated production. We developed a static mass balance model of the foodweb representing one of many possible solutions to the inconsistencies in the data. The model included sufficient fish biomass to balance the original consumption estimate, and consequently fish became the main krill consumers. Nonetheless, only 74% of local krill production was consumed by predators, suggesting that there are additional mortality sources that we did not explicitly model. We developed further models to explore scenarios incorporating plausible climate-driven reductions in krill biomass. In scenarios with unchanged predator diets, an 80% reduction in krill biomass resulted in a 73% reduction in vertebrate biomass. However, when predators with diverse diets were able to switch to feeding on alternative zooplankton prey, total vertebrate biomass was maintained at current levels. Scenarios in which 80% of krill biomass was replaced with copepod biomass required 28% more primary production because the estimated consumption rate of copepods is higher than that of krill. The additional copepod biomass did not alter the consequences for vertebrates. These scenarios illustrate the wide range of potential consequences of a shift from a krill to a copepod dominated system in a warming climate. They suggest that both maintenance and dramatic reduction of vertebrate production are plausible outcomes, although the former requires major changes in predator diets.last_img read more


JFSE Wraps Up Taiwanese Offshore Wind Project

Posted On Sep 28 2020 by

first_imgJames Fisher Subsea Excavation (JFSE), a part of James Fisher and Sons, has completed its first project in Taiwan.JFSE deployed the shallow draft Twin R2000 tool to de-bury and retrench a cable for maintenance as part of the Formosa 1 wind farm development for its client, cable lay contractor Woen Jinn Harbor (WJH).Formosa 1, near Miaoli on the west coast of Taiwan, is a 130MW wind farm and will be the country’s first commercial-scale offshore wind project, the company noted.Lee Cheng-Yu, director at WJH, said: “This was a complex element of the project. We needed to use an M/CFE provider that had a strong track record in the offshore wind farm market so we could fully trust the cables would be protected during the process. The JFSE team and the Twin R2000 provided a fantastic service.”Richard Beattie, regional director Asia Pacific at JFSE, said: “We are delighted to have successfully completed our first project in Taiwan and provided WJH with the perfect solution for its subsea excavation requirements. The Twin R2000’s flexibility to operate in shallow water depths from 1.5m and non-contact method was vital.”last_img read more


Why ‘weird’ JaVale McGee signed with Lakers, and the secrets he’ll spill to his new teammates

Posted On Dec 21 2019 by

first_imgCLICK HERE if you are having a problem viewing the photos on a mobile device JaVale McGee appeared to enjoy playing with the Warriors. He says he didn’t think twice about bolting to the Lakers.“Going back to Oakland was a great opportunity,” McGee said to ESPN’s Sam Alipour recently, “but coming here with LeBron (James) and knowing how that’s going to set the city on fire, a city I already live in, I definitely wanted to be part of that. I signed like an hour after LeBron.”Not even the most …last_img read more


Giants to make daily roster moves to aid lineup, pitching staff this week

Posted On Dec 20 2019 by

first_imgSAN FRANCISCO — The Giants player who changed the offense and ignited the team’s July hot streak is due to return in the near future.Outfielder Alex Dickerson could be active in San Francisco as soon as Wednesday after beginning a rehab assignment with Triple-A Sacramento on Tuesday. Dickerson, who hit .346 in 107 at-bats before landing on the injured list, is expected to be evaluated by the Giants training staff after receiving “three or four” at-bats as a designated hitter for the Sacramento …last_img read more


“Mingo” GC30 GEOCACHE OF THE WEEK – July 4th, 2010

Posted On Dec 17 2019 by

first_imgSunset at “Mingo” GC30“Mingo” GC30 survives at the oldest active cache.  This Terrain 1, Difficulty 1 geocache sits right off the interstate in Western Kansas. It was placed on May 11th, 2000.  The cache has been logged more the 1,700 times since then.  “Mingo” is a must-log for many geocachers and billed as a “quick stop for a long trip.” The Kansas Stasher placed the cache.  He writes that it’s the 7th geocache ever placed, and the first in Kansas.What to explore more geocaching adventures? Take a look at all the Geocaches of the Week here.Share with your Friends:More SharePrint RelatedMingo — Geocache of the WeekMarch 29, 2017In “Community”The top ten geocaches added to ListsSeptember 24, 2019In “Community”Geocaching Bucket List: Greatest Hits EditionMarch 6, 2016In “Community”last_img read more


iPhone App Takes a 3D Scan of Your Face, Prints a 3D Model

Posted On Dec 16 2019 by

first_imgaudrey watters Tags:#news#NYT#web Why Tech Companies Need Simpler Terms of Servic… Related Posts Top Reasons to Go With Managed WordPress Hosting Via Popular Science A Web Developer’s New Best Friend is the AI Wai… Whenever you hear someone pronounce “Print is dead,” point to the growing number of 3D printing options and remind them that, in fact, printing – no longer just to paper – remains an incredible human invention. Or you, perhaps, you can point to the Trimensional iPhone app, which thanks to its latest update, now lets you scan and then print a 3D model of your face.Trimensional describes itself as a 3D scanner for iPhone, and before you make plans to use the app to scan and print all manner of 3D models, it’s worth noting that the app only works with faces right now. Trimensional uses the screen and the front-facing camera on an iPhone to detect patterns of light reflected off your face in order to build a 3D model. An update to the app that hit the App Store this week lets you send a movie or animated GIF file of the rotating 3D model to friends. And with a $5 in-app purchase (the app itself is a dollar), you can send the scan to a 3D printer. “Within about half an hour, ” says Grant Schindler, a research scientist at Georgia Tech, “you can go from scanning yourself to having a physical copy.”OK, I don’t actually own a 3D printer, but I want one, particularly if, as this app certainly portends, someday I’ll be able to snap photos with my iPhone and then print the image as a three-dimensional object. 8 Best WordPress Hosting Solutions on the Marketlast_img read more


Panel to probe U.P. exam irregularities

Posted On Dec 3 2019 by

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Gov’t Earmarks Three Billion Dollars to Improve Health Service Delivery

Posted On Oct 24 2019 by

first_imgThe Government has earmarked $3 billion under the Health Services Improvement Project to expand service delivery at public health facilities.Details of the funds are outlined in the 2019/20 Estimates of Expenditure, now before the House of Representatives.The allocation will be used for infrastructure work at seven hospitals and three health centres to include upgrading of sewerage systems, laboratories, roofs and elevators; repair of standby generators and boilers; and to conduct vector control.It will also facilitate the purchase of mental health buses, diagnostic and medical equipment, and training for health personnel.Also contained in the 2019/20 Estimates of Expenditure is an allocation of $216 million for continued improvement of health facilities to tackle non communicable diseases (NCDs).The funds will facilitate designs for the renovation and construction of hospitals and health centres; acquisition of laundry machines and office equipment; engagement of project staff and other consultants; and strengthen comprehensive policies to prevent NCDS.last_img read more


Why UABs Football Team Couldnt Even Last 20 Years

Posted On Sep 30 2019 by

The University of Alabama at Birmingham knew its football team was going to have to battle for survival from the start. In 1996, its first year of Division I-A ball, the team’s slogan was unusually defensive: “We’re here to stay,” the omnipresent banners and billboards around Birmingham read. Less than 20 years later, the team is gone.On Tuesday UAB President Ray Watts announced he was shuttering the football team, citing a study from an outside consulting group that determined the program would need to dramatically increase its operating budget in order to remain competitive. “We have considered many options to fill this financial gap, including through philanthropic support; but our informed analysis of current and past support and interest concluded that the gap is simply too wide,” Watts wrote.UAB faced two major problems, one of which was specific to its circumstances, and one of which is staring down all universities that have recently tried their hand at big-time football.The University of Alabama never wanted UAB to be a competitor, making life difficult for UAB even before a team arrived. Even though the two institutions share a board of trustees and a medical school, Alabama has been leery of UAB’s foray into major sports since Gene Bartow left his job as UCLA’s head coach to found UAB’s basketball team in 1978. Citing a range of grievances over recruiting and fan support, Alabama has refused to engage UAB on the court or on the gridiron. The Tide have faced the Blazers only once, in basketball, when they were pitted against each other in the National Invitation Tournament. UAB didn’t help matters by winning 58-56.In 1989, Bartow, UAB’s athletic director, started to put together a football team. Alabama’s athletic department was not happy. Its head coach, Bill Curry, was particularly adamant: “Not only would we not play them, we don’t understand why they are talking about bringing another football team into the University of Alabama system,” he said at the time. “I’m the only [football] coach in the University of Alabama system. We don’t need another football team at one of our other campuses.” In 1991, Bartow sent a letter to the NCAA accusing former and current Alabama coaches — including Bear Bryant — of recruiting violations.The system’s board of trustees has tended to represent Alabama’s interests over UAB’s, perhaps because the large majority of them are alumni of the Capstone. (Trustee Paul Bryant, Jr., for example, is the son of the legendary coach.) They’ve blocked UAB’s attempts to move out of the cavernous and decaying Legion Field and into a new stadium, and they nixed a deal for UAB to hire Jimbo Fisher, who would go on to win a national championship with Florida State.But even if the Blazers hadn’t been undercut by their own trustees, they still would have had a tremendous hill to climb, one that’s getting steeper every year as the gap between the haves and the have-nots of football continues to grow. UAB was in the vanguard of a recent trend of universities starting football programs from scratch with the plan to get to Division I as soon as possible, and reap the PR and financial benefits that come with a major football program. Nine other universities that are in or are about to join the Football Bowl Subdivision have started football programs since UAB did, and they share several commonalities.All of them are based in the South, and all of them felt they had a chance to succeed because of the prestige of the game and the fertile recruiting grounds in the region. But they’ve found it incredibly expensive to field a competitive FBS program. They all have losing records against fellow FBS schools, and they all receive substantial subsidies in order to keep their athletic departments afloat. They’ve had trouble attracting supporters, perhaps because most football fans in the region are already loyal to other teams. And as the Big 5 power conferences start to crank up the financial pressure — both with lavish spending on facilities and upcoming allowances for players — it’s possible that some of these programs could join UAB on the sidelines.Only one of the new teams looks like it’s making the leap to sustainability. South Florida not only has the highest attendance and lowest subsidy percentage of the bunch, it’s also the only school that’s made it out of the C-USA and Sun Belt Conference dregs and into the relative comfort of the American Athletic Conference. (That said, the team has regressed recently, winning only six games in the last two years.)The rest of the teams look a lot like UAB with slightly better attendance. They bring in far less than the average FBS athletic department, and all their athletic departments receive at least 60 percent of their revenues in subsidies — meaning that a combination of student fees, institutional support and state funding are used to cover the majority of their expenses.In his letter to UAB faculty about the shutdown, Watts specifically cited the huge subsidy as a reason the football team had to go, along with an unwillingness to shell out even more cash for upgraded facilities. If that’s actually the case, and cold numbers rather than system-wide infighting cost UAB its team, then there are plenty of other programs facing similar deficits.Watts claims the UAB athletic budget will stay the same even after the football program folds, meaning that more resources can be put toward other sports, including the basketball team, which has recently fallen on hard times after years of winning seasons. Perhaps UAB can look to the success of Virginia Commonwealth University, its former Sun Belt Conference foe, which eschewed the lure of football to focus on basketball. The Rams now play in the hoops-centered Atlantic-10 and regularly make deep runs in the NCAA tournament.Making the Blazers’ basketball team into a powerhouse won’t be a simple task. But it will certainly be easier than the existential struggle its football team just lost.CORRECTION (9:30 a.m., Dec. 8): An earlier version of this article misstated the year that Gene Barlow started UAB’s football program; it was 1989, not 1991. read more


Eighth Australian lawmaker resigns over dual citizenship

Posted On Sep 3 2019 by

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