first_imgRecent scientific interest following the “discovery” of lithodid crabs around Antarctica has centred on a hypothesis that these crabs might be poised to invade the Antarctic shelf if the recent warming trend continues, potentially decimating its native fauna. This “invasion hypothesis” suggests that decapod crabs were driven out of Antarctica 40–15 million years ago and are only now returning as “warm” enough habitats become available. The hypothesis is based on a geographically and spatially poor fossil record of a different group of crabs (Brachyura), and examination of relatively few Recent lithodid samples from the Antarctic slope. In this paper, we examine the existing lithodid fossil record and present the distribution and biogeographic patterns derived from over 16,000 records of Recent Southern Hemisphere crabs and lobsters. Globally, the lithodid fossil record consists of only two known specimens, neither of which comes from the Antarctic. Recent records show that 22 species of crabs and lobsters have been reported from the Southern Ocean, with 12 species found south of 60°S. All are restricted to waters warmer than 0°C, with their Antarctic distribution limited to the areas of seafloor dominated by Circumpolar Deep Water (CDW). Currently, CDW extends further and shallower onto the West Antarctic shelf than the known distribution ranges of most lithodid species examined. Geological evidence suggests that West Antarctic shelf could have been available for colonisation during the last 9,000 years. Distribution patterns, species richness, and levels of endemism all suggest that, rather than becoming extinct and recently re-invading from outside Antarctica, the lithodid crabs have likely persisted, and even radiated, on or near to Antarctic slope. We conclude there is no evidence for a modern-day “crab invasion”. We recommend a repeated targeted lithodid sampling program along the West Antarctic shelf to fully test the validity of the “invasion hypothesis”.last_img read more

first_imgThe collapses of the Larsen A and B ice shelves on the Antarctic Peninsula in 1995 and 2002 confirm the impact of southward-propagating climate warming in this region. Recent mass and dynamic changes of Larsen B’s southern neighbour Larsen C, the fourth largest ice shelf in Antarctica, may herald a similar instability. Here, using a validated ice-shelf model run in diagnostic mode, constrained by satellite and in situ geophysical data, we identify the nature of this potential instability. We demonstrate that the present-day spatial distribution and orientation of the principal stresses within Larsen C ice shelf are akin to those within pre-collapse Larsen B. When Larsen B’s stabilizing frontal portion was lost in 1995, the unstable remaining shelf accelerated, crumbled and ultimately collapsed. We hypothesize that Larsen C ice shelf may suffer a similar fate if it were not stabilized by warm and mechanically soft marine ice, entrained within narrow suture zoneslast_img read more

first_imgThe Antarctic continental shelves and slopes occupy relatively small areas, but, nevertheless, are important for global climate, biogeochemical cycling and ecosystem functioning. Processes of water mass transformation through sea ice formation/melting and ocean–atmosphere interaction are key to the formation of deep and bottom waters as well as determining the heat flux beneath ice shelves. Climate models, however, struggle to capture these physical processes and are unable to reproduce water mass properties of the region. Dynamics at the continental slope are key for correctly modelling climate, yet their small spatial scale presents challenges both for ocean modelling and for observational studies. Cross-slope exchange processes are also vital for the flux of nutrients such as iron from the continental shelf into the mixed layer of the Southern Ocean. An iron-cycling model embedded in an eddy-permitting ocean model reveals the importance of sedimentary iron in fertilizing parts of the Southern Ocean. Ocean gliders play a key role in improving our ability to observe and understand these small-scale processes at the continental shelf break. The Gliders: Excellent New Tools for Observing the Ocean (GENTOO) project deployed three Seagliders for up to two months in early 2012 to sample the water to the east of the Antarctic Peninsula in unprecedented temporal and spatial detail. The glider data resolve small-scale exchange processes across the shelf-break front (the Antarctic Slope Front) and the front’s biogeochemical signature. GENTOO demonstrated the capability of ocean gliders to play a key role in a future multi-disciplinary Southern Ocean observing system.last_img read more

first_imgThe 14th International Symposium on Tardigrada took place in Copenhagen, Denmark from 30 July to 3 August 2018. Approximately 140 participants, representing 28 countries from five continents attended the meeting, and there were 58 talks and 74 posters of which 20 were selected for the Symposium Proceedings published in this special issue. The studies span phylogenomics, systematics, anatomy, morphology, reproductive biology, cryobiology, ecology, diet, microbial interactions and biogeography, taking the next step forward in broadening and deepening our understanding of tardigrade biology.last_img read more

first_imgMarch 31, 2018 /Sports News – National Jason Kidd, Steve Nash, Ray Allen headline hall of fame class of 2018 Written by Beau Lundcenter_img FacebookTwitterLinkedInEmailiStock/Thinkstock(SPRINGFIELD, Mass.) — The Naismith Memorial Basketball Hall of Fame class of 2018 was announced Saturday with retired NBA stars Jason Kidd, Steve Nash, Ray Allen, and Grant Hill headlining the group.Four-time NBA All-Star Maurice Cheeks also made the Hall, as well as women’s stars Katie Smith and Tina Thompson, legendary college coach Lefty Driesell, and executive Rod Thorn.Kidd is a 10-time NBA All-Star who played for the Mavericks, Suns, Nets, and Knicks in his 20-year career, winning a championship with Dallas in 2011. After starting his career with a co-Rookie of the Year award in 1995, by the time he retired, Kidd ranked second all-time in assists and steals, and third in triple-doubles. He also served as the Nets coach from 2013-14, and as the Bucks coach until as recently as January 22.Kidd thanked the Hall of Fame for his selection, but also acknowledged his teammates over the years, saying, “this being a team sport, it’s about my teammates and coaches, so hopefully I’m representing them well.”Joining Kidd is Steve Nash. Born in Johannesburg, South Africa but raised in Canada, Kidd broke into the NBA with the Suns in 1996. Nash would end up playing the majority of his career with Phoenix, other than a six year stint with the Mavericks, and three years in Los Angeles to finish out his career. In that time, he captured two consecutive MVP awards, made eight All-Star Games, and led the league in assists five times, finishing his career at third all-time in that category.Ray Allen is one of the greatest shooters in NBA history, known for his deadly accuracy from three-point range. In his career with the Bucks, Supersonics, Celtics, and Heat, he was a 10-time All-Star and 2-time NBA champion, and retired with the most three-pointers made in league history.Grant Hill shared Rookie of the Year honors with Jason Kidd in 1995, before going on to be named to seven All-Star teams in 19-years. He is the first former Duke player to make the Hall of Fame.As for the other inductees, Maurice Cheeks appeared in three NBA finals with the 76ers, winning one of them. He was known for his defensive prowess, and retired as the all-time leader in steals (his record has since been eclipsed, leaving him in fifth place all-time).Katie Smith is one of the greatest women’s basketball players of all time. She is the leading all-time scorer in women’s pro-basketball history and has also won three Olympic gold medals. Tina Thompson is a two-time Olympic gold medalist and also won four WNBA championships with the Houston Comets, while being named to nine All-Star Teams.Lefty Driesell is 11th all-time on the D-1 college basketball coaching win list. He is most well known for his time at Maryland, where he made eight of his 13 NCAA tournament appearances.Rod Thorn was a longtime NBA executive who was general manager of the Bulls when they drafted Michael Jordan.Also making the Hall were five-time NBA All-Star Charlie Scott; president of the Warriors Rick Welts; European champion Dino Radja; and Ora Mae Washington, who played tennis as well as basketball.The enshrinement ceremony for the Naismith Memorial Basketball Hall of Fame will be on Friday, September 7th, in Springfield, Massachusetts.Copyright © 2018, ABC Radio. All rights reserved.last_img read more

first_img — A former figure skater urged lawmakers on Wednesday to investigate the U.S. Olympic Committee’s handling of allegations of sexual abuse made by its young athletes.Gymnastics, he said, isn’t the only sport with a problem.In testimony delivered before the Senate Commerce Subcommittee on Consumer Protection, Product Safety, Insurance and Data Security, a copy of which can be read below, Craig Maurizi said figure skating’s governing body ignored him when he reported being sexually abused by the sport’s top coach.“My story is a case history of the power of abusers and organizations to silence powerless child victims of sexual abuse in the relentless pursuit of money and medals,” Maurizi said. “When I [came forward], I was treated with the same disdain, disrespect and disbelief by the U.S. Figure Skating Association as many of the Larry Nassar victims who tried to report him to USA Gymnastics or Michigan State University.”Attorney John Manly, who represents Maurizi and many of the athletes who accused Nassar of abuse, called for accountability for both abusers and enablers.“These brave athletes and their families expect this to be the beginning of a process of accountability for their abusers and their enablers throughout the Olympic movement,” Manly said in a statement. “Their testimony will assist Congress in exercising its oversight authority to protect current and future athletes from physical, emotional and sexual abuse.”As detailed in an ABC News investigation, Maurizi accused Richard Callaghan, who coached Tara Lipinski to a gold medal at the 1998 Winter Olympics in Nagano, of sexually abusing him when he was one of his students more than a decade earlier.He reported the abuse to the sport’s national governing body, U.S. Figure Skating, in 1999 and told his story to several major media outlets. But Callaghan issued strong denials, insisting he had not abused Maurizi or engaged in any sexual misconduct. U.S. Figure Skating dismissed Maurizi’s claims without interviewing Maurizi, saying that he had waited too long to bring his complaint.Maurizi filed a new complaint to the U.S. Center for SafeSport, the U.S. Olympic Committee’s misconduct watchdog, in January. The sport suspended Callaghan in March, pending an ongoing investigation of those earlier allegations, raising questions from leading lawmakers about why he was allowed to continue coaching for the past two decades.When asked by ABC News following his suspension about the history of allegations against him Callaghan said he had no further comment.“That’s 19 or 20 years ago,” he said. “I have nothing to say.”Sen. Jeanne Shaheen, a Democrat from New Hampshire who has been calling for a special committee to investigate the USOC’s handling of sexual abuse allegations, called the governing body’s conduct “outrageous.”“Why was it not investigated when it was reported? Why was Callaghan allowed to continue to coach for another 20 years before forcing him to step aside?” Shaheen said. “Those are the kind of questions we need to ask, and we need answers for those athletes that have been abused.”A spokesperson for U.S. Figure Skating did not immediately respond to a request for comment but previously told ABC News the organization has a “zero tolerance” policy regarding abuse and pointed to abuse policies and reporting rules instituted in 2000, shortly after the dismissal of Maurizi’s initial complaint.The scandal surrounding sexual abuse in sports has continued to grow since dozens of athletes reported a disturbing pattern of misconduct by Nassar that went unchecked by the people and institutions charged with protecting those athletes.Maurizi, who later turned to coaching and still trains top skaters, says those trailblazing gymnasts gave him the courage to share his story again as well.“Olympic medalists including Jamie Dantzscher and Jordyn Wieber revealed a pattern of disbelief and disrespect by their Olympic governing body, USA Gymnastics, that was so similar to what I experienced from U.S. Figure Skating that it made the hair stand up on the back of my neck,” Maurizi said. “These brave women gave me the courage to speak out again and I want to publicly thank them for it today.”Maurizi closed with a direct appeal to lawmakers to exercise greater oversight of the federally chartered U.S. Olympic Committee.“I respectfully ask you to find out why the USOC did nothing for decades while reports of child sexual abuse in many Olympic sports were ignored,” Maurizi said. “Who was responsible for this tragedy and how will they be held accountable?”Copyright © 2018, ABC Radio. All rights reserved. Beau Lund April 18, 2018 /Sports News – National Figure skater to Congress: I reported sexual abuse and was ignoredcenter_img Written bylast_img read more

first_imgApril 24, 2018 /Sports News – Local Big Fifth Inning Lifts Utah Baseball Over BYU, 8-4 FacebookTwitterLinkedInEmailPROVO, Utah – A six-run fifth inning lifted the Utah baseball team to an 8-4 win over BYU on Tuesday evening in Provo.Utah (10-28) broke a 2-2 tie with the scoring barrage in the fifth inning and Spencer Kevin Johnson and Josh Tedeschi were strong in the mound in the middle innings in propelling the Utes to the win. Johnson, who earned the win, allowed two runs (one earned) and two hits with five strikeouts over his two innings. Tedeschi threw two scoreless innings with five strikeouts while Trenton Stoltz closed out the game with three quick outs in the ninth.Utah was led at the plate by three hits each from Chandler Anderson and Oliver Dunn, who were both 3-for-5. Anderson also scored two runs and had an RBI. Rykker Tom had two hits with two RBI and Matt Richardson also drove in two runs on the night.Jacob Rebar earned the start on the mound, throwing three innings and allowing two runs on four hits with two strikeouts. Riley Pierce surrendered one hit with a strikeout in his one inning pitched.Tied at 2-2 after four innings with each team scoring single runs in the first and third innings, Utah took the lead with a six-run fifth. Tom and Erick Migueles hit back-to-back doubles for the first run of the inning. Braden DeBenedictis singled to put runners at the corners which led to a run on a squeeze bunt by Dominic Foscalina. Richardson had the big hit of the inning with a two-RBI double to right center. DaShawn Keirsey, Jr., drove in Richardson with a double and Anderson continued the scoring barrage with an RBI single to give the Utes an 8-2 lead.BYU scored two runs in the seventh on three hits, one of which was unearned after an error, to cut the Utah lead to 8-4.The contest was the third of a four-game series against the Cougars with the Utes leading 2-1. The final game will be held in Salt Lake City on May 8.The Utes return to Smith’s Ballpark on Friday, April 27, to open a three-game Pac-12 series against Arizona. First pitch is at 6:00 p.m. MT. Robert Lovell Tags: Baseball/BYU Cougars/Rivalry/Utah Utes Written bylast_img read more

first_img Robert Lovell Written by July 18, 2018 /Sports News – Local Bees Buzz Vegas FacebookTwitterLinkedInEmail(Salt Lake City, UT)  —  Jose Fernandez drove in a pair of runs as the Bees edged by the Las Vegas 51s 5-4 at Smith’s Ballpark.Eric Young Junior walked three times and scored two Salt Lake runs.  Matt Thaiss had three hits, walked and scored a run in the victory.The two teams will meet again tonight in the third game of this four-game series. Tags: Baseball/PCL/Salt Lake Beeslast_img read more

first_imgLittlewood is currently 197-148 (.570) and 96-69 (.582) in WCC play. FacebookTwitterLinkedInEmailPROVO, Utah-This weekend, BYU baseball (18-5, 4-2 in West Coast Conference play), winners of 12 of their last 14 games, hosts the Saint Mary’s Gaels (16-9, 3-0 in WCC play) as the WCC seasons ensue for these squads. Brad James Although the Cougars have been highly successful, they are only third in the WCC with the Gaels, oddly enough, leading in the conference standings. Written by March 28, 2019 /Sports News – Local BYU Baseball Hosts Saint Mary’s For the Weekend The Gaels are paced by junior outfielder Joe Vranesh (4 home runs, 21 RBI on the season). Freshman right-handed pitcher Tyler Thornton (4-0 on the season) has been a stalwart for Saint Mary’s on the mound. Getting the nod for the Cougars Thursday evening is senior right-handed pitcher Jordan Wood (a 1.63 ERA this year) while Friday Littlewood will ride with sophomore right-handed pitcher Easton Walker (an 0.00 ERA in 25.2 innings, the best in the nation). Saturday, BYU goes with right-handed pitcher Justin Sterner (33 strikeouts in 29.1 innings).center_img Tags: BYU Baseball/Joe Vranesh/Mike Littlewood/Tyler Thornton/Utah Valley/West Coast Conference The Cougars rank 20th nationally in team WHIP at 1.19 runs and ranked 24th in team ERA at 3.12. The Cougars lead the all-time series against the Gaels 19-10. This streak has also placed Cougars coach Mike Littlewood (2012-present at BYU) three wins away from the 200-win plateau. With the exception of a road game at Utah Valley (a 14-13 win March 19), the Cougars have played all of their games at Miller Field, outscoring opponents 102-52 in that span. The Cougars are in the midst of a four-week homestand which has seen them go 14-2 since March 5.last_img read more

first_img Written by Tags: SUU Basketball/UC Santa Barbara Basketball FacebookTwitterLinkedInEmailCEDAR CITY, Utah-Saturday, Southern Utah men’s basketball (5-4) hosts UC Santa Barbara (6-3) of the Big West Conference at the America First Event Center.The Thunderbirds are coached by Todd Simon (41-67, .380) who is in fourth season at SUU.The Thunderbirds score 77.9 points per game, ranking them 72nd nationally in scoring offense.Redshirt senior forward Dwayne Morgan (12.3 points, 4.1 rebounds per game), junior guard John Knight III (12.3 points per game), redshirt senior guard/forward Cameron Oluyitan (11.9 points,  a team-best 5.6 rebounds per game, a team-best 20 assists and 16 steals) all score in double figures on average for the Thunderbirds. Morgan’s seven blocked shots lead SUU in that category.The Thunderbirds surrender 64 points per game defensively. This ties them for 82nd nationally in scoring defense with Minnesota, Arizona State, Kent State, New Mexico State and Missouri State.The Gauchos are coached by Joe Pasternack who is 51-22 (.699) in his third season at UC Santa Barbara. He is 89-76 (.539) all-time as a collegiate head coach which includes a stint at New Orleans (2007-2010).UC Santa Barbara is led by freshman forward Amadou Sow (15.9 points, 8.3 rebounds per game). Sow also leads the Gauchos in blocked shots per game (1.2).Also scoring in double figures on average for UC Santa Barbara are senior guard Max Heidegger (14 points per game) and junior guard JaQuori McLaughlin (13.7 points per game, a team-best 4.1 assists and 1.1 steals per game) as well as graduate forward Matt Freeman (11.1 points per game).The Gauchos lead the Thunderbirds 1-0 all-time with UC Santa Barbara prevailing 88-55 December 5, 1988 at Santa Barbara, Calif. December 12, 2019 /Sports News – Local SUU Men’s Basketball Hosts UC Santa Barbara Saturday Brad Jameslast_img read more