Combined influence of meso-scale circulation and bathymetry on the foraging behaviour of a diving predator, the king penguin (Aptenodytes patagonicus)

first_imgInvestigating the responses of marine predators to environmental features is of key importance for understanding their foraging behaviour and reproductive success. In this study we examined the foraging behaviour of king penguins breeding at Kerguelen (southern Indian Ocean) in relation to oceanographic and bathymetric features within their foraging ambit. We used ARGOS and Global Positioning System tracking together with Time-Depth-Temperature-Recorders (TDR) to follow the at-sea movements of incubating and brooding king penguins. Combining the penguin behaviour with oceanographic data at the surface through satellite data and at depth through in-situ recordings by the TDRs enabled us to explore how these predators adjusted their horizontal and vertical foraging movements in response to their physical environment. Relating the observed behaviour and oceanographic patterns to local bathymetry lead to a comprehensive picture of the combined influence of bathymetry and meso-scale circulation on the foraging behaviour of king penguins. During both breeding stages king penguins foraged in the area to the south-east of Kerguelen, where they explored an influx of cold waters of southern origin interacting with the Kerguelen Plateau bathymetry. Foraging in the Polar Front and at the thermocline was associated with high prey capture rates. However, foraging trip orientation and water mass utilization suggested that bathymetrically entrained cold-water features provided the most favourable foraging locations. Our study explicitly reports the exploration of bathymetry-related oceanographic features by foraging king penguins. It confirms the presence of Areas of Ecological Significance for marine predators on the Kerguelen Plateau, and suggests the importance of further areas related to the cold-water flow along the shelf break of the Kerguelen Plateau.last_img read more

Formation of electron radiation belts at Saturn by Z-mode wave acceleration

first_imgAt Saturn electrons are trapped in the planet’s magnetic field and accelerated to relativistic energies to form the radiation belts, but how this dramatic increase in electron energy occurs is still unknown. Until now the mechanism of radial diffusion has been assumed but we show here that in-situ acceleration through wave particle interactions, which initial studies dismissed as ineffectual at Saturn, is in fact a vital part of the energetic particle dynamics there.We present evidence from numerical simulations based on Cassini spacecraft data that a particular plasma wave, known as Z-mode, accelerates electrons to MeV energies inside 4 RS(1 RS = 60,330 km) through a Doppler shifted cyclotron resonant interaction. Our results show that the Z-mode waves observed are not oblique as previously assumed and are muchbetter accelerators than O-mode waves, resulting in an lectron energy spectrum that closely approaches observed values without any transport effects included.last_img read more

Sex-specific effects of wind on the flight decisions of a sexually-dimorphic soaring bird

first_img1. In a highly dynamic airspace, flying animals are predicted to adjust foraging behaviour to variable wind conditions to minimize movement costs.2. Sexual size dimorphism is widespread in wild animal populations, and for large soaring birds which rely on favourable winds for energy‐efficient flight, differences in morphology, wing loading and associated flight capabilities may lead males and females to respond differently to wind. However, the interaction between wind and sex has not been comprehensively tested.3. We investigated, in a large sexually dimorphic seabird which predominantly uses dynamic soaring flight, whether flight decisions are modulated to variation in winds over extended foraging trips, and whether males and females differ.4. Using GPS loggers we tracked 385 incubation foraging trips of wandering albatrosses Diomedea exulans , for which males are c . 20% larger than females, from two major populations (Crozet and South Georgia). Hidden Markov models were used to characterize behavioural states—directed flight, area‐restricted search (ARS) and resting—and model the probability of transitioning between states in response to wind speed and relative direction, and sex.5. Wind speed and relative direction were important predictors of state transitioning. Birds were much more likely to take off (i.e. switch from rest to flight) in stronger headwinds, and as wind speeds increased, to be in directed flight rather than ARS. Males from Crozet but not South Georgia experienced stronger winds than females, and males from both populations were more likely to take‐off in windier conditions.6. Albatrosses appear to deploy an energy‐saving strategy by modulating taking‐off, their most energetically expensive behaviour, to favourable wind conditions. The behaviour of males, which have higher wing loading requiring faster speeds for gliding flight, was influenced to a greater degree by wind than females. As such, our results indicate that variation in flight performance drives sex differences in time–activity budgets and may lead the sexes to exploit regions with different wind regimes.last_img read more

Sex abuse victims of former Olympic doctor say they want famed gymnastics coach prosecuted

first_img FacebookTwitterLinkedInEmailiStock/Thinkstock(AUSTIN, Texas) — Five sexual assault victims of former U.S. Olympic doctor Larry Nassar demanded Thursday that the Texas Attorney General prosecute legendary gymnastics coach Marta Karolyi for not reporting Nassar when she was first told of his deviant behavior.The victims cited Karolyi’s 2017 deposition in a California lawsuit against her and her husband, Bela Karolyi, in which she said she was informed in June 2015 by Steve Penny, former president of USA Gymnastics, that Nassar was suspected of molesting athletes but failed to report him to law enforcement.The Karolyis ran the Karolyi Ranch gymnastics training facility in Huntsville, Texas, where many elite gymnasts, including gold medal winners Aly Raisman and Simone Biles, say they were assaulted by Nassar under the guise of medical treatment.Autumn Blainey, 16, said she was subjected to numerous assaults by Nassar in the year after Marta Karolyi, 75, was told of complaints about the doctor’s questionable conduct.“I think that it is incredibly unfair that Marta didn’t do her job and protect me because I probably wouldn’t be standing here if she would have,” Autumn said at a news conference outside the Texas Attorney General’s Office in Austin. “I think it’s awful that I couldn’t trust adults that were supposed to protect me throughout this process and Larry would have probably never touched me if the adults did their jobs.”The victims spoke out a day after Marta Karolyi’s attorney, Gary Jewell, issued a statement saying his client “misunderstood the question and misspoke” during her deposition. Jewell said Penny didn’t inform his client of Nassar’s behavior until 2016 and that she was only told that concerns were raised over his treatments.Jewell said Karolyi had “no knowledge of allegations of sexual misconduct by Larry Nassar until the summer of 2016” after an investigation of molestation allegations against him was well underway of in Michigan.Attorney John Manly, who represents 180 Nassar victims, scoffed at Jewell’s statement, saying Marta Karolyi was given the opportunity to correct numerous misstatements in her deposition but did not change the date of when she was informed of Nassar behavior.“She signed the deposition under penalty of perjury leaving unchanged that she first knew in June 2015,” Manly said at the news conference. “But let me tell you what Mr. Jewell’s statement is: Mr. Jewell’s statement is a desperate attempt to explain that he got caught, Mrs. Karolyi got caught in a big fat lie.”Jewell did not respond to requests from ABC News for comment on Thursday.Manly said there are 320 Nassar victims “who cry out today” for Texas Attorney General Ken Paxton to prosecute one of Nassar key alleged enablers, Marta Karolyi.“Your job sir is justice, your job sir is to find the truth,” Manly said of Paxton. “And if 300-plus girls being molested doesn’t justify an investigation to find the truth and to find out what happened then for God sake what does?”In a statement released shortly after the news conference, Paxton’s office said such an investigation would be “outside our jurisdiction.” But the Attorney General added that his office would “gladly and immediately assist with this investigation and prosecution” if asked to do so by the appropriate law enforcement agencies.According to the attorney general’s website, local district attorneys have original jurisdiction over criminal prosecution and the AG has “no role or oversight” regarding those decisions. The office normally files civil or criminal suits “upon referral by other state agencies,” the website says.Marc Rylander, a spokesman for Paxton, said the Texas Rangers, the Walker County Sheriff’s Office, and the Walker County District Attorney’s Office are already conducting an investigation of Karolyi.He said the Attorney General is confident that a “complete and thorough investigation” is being conducted and “will achieve justice for the victims of these alleged crimes.”Nassar, who was also the long-time sports medicine doctor at Michigan State University, was sentenced in January to 40 to 175 years in prison, for molesting numerous female athletes in Ingham County, Michigan. During his sentencing hearing, more than 150 victims asked a judge to give Nassar the maximum sentence.In February, the disgraced physician was sentenced to another 40 to 125 years in prison on multiple counts of sexual assault that occurred in neighboring Eaton County, Michigan.The Michigan Attorney General continues to investigate the Nassar case after numerous victims said they complained to officials of Michigan State University, USA Gymnastics, and US Olympic Committee but nothing was ever done.In March, Nassar’s boss at MSU, William Strampel, 70, was arrested on felony charges of harassing four female MSU students.Michelle Simpson Tuegel, a Texas lawyer who represents several Nassar victims, said the victims will not go away until the Texas Attorney General opens an investigation of both Marta and Bela Karolyi.“Had Mrs. Karolyi actually done what Texas law requires her to do, some of these women, including the brave 16-year-old Autumn standing here … wouldn’t be here. They would not have had to suffer like they suffered,” Tuegel said.Another Nassar victim, Lindsey Lemke, a 22-year-old student at Michigan State University, said she too was molested by Nassar after Marta Karolyi was informed of complaints about him.“An investigation must be done to be able to find out who knew what, when they knew it and they need to be held accountable,” Lemke said.Jamie Dantzscher, 36, part of the U.S. women’s gymnastics team that won the bronze medal at the 2000 Olympics in Sydney, Australia, said she was molested by Nassar numerous times while training at the Karolyi Ranch and elsewhere.“I can’t understand why this is not taken seriously in Texas right now,” Dantzscher said at the news conference. “How many little girls and young women does it take to take sexual abuse seriously?”Copyright © 2018, ABC Radio. All rights reserved. May 10, 2018 /Sports News – National Sex abuse victims of former Olympic doctor say they want famed gymnastics coach prosecuted Written bycenter_img Beau Lundlast_img read more

Cauley-Stein scores 23 as Kings outlast Jazz 119-110

first_img Written by FacebookTwitterLinkedInEmailSALT LAKE CITY (AP) — Willie Cauley-Stein scored 23 points and Bogdan Bogdanovic had 18 to help the Sacramento Kings beat the Utah Jazz 119-110 on Wednesday night.At a time in the game when previous Kings teams would wilt, this Sacramento squad outhustled, outmuscled and outshot the Jazz in the middle of the fourth quarter.Nemanja Bjelica made a 3-pointer with 4:56 remaining to finish a 16-1 run that turned a two-point game into a 105-88 lead.Just when Sacramento looked to be in total control, the Jazz mustered a last-gasp rally. Donovan Mitchell scored 14 points in less than 3½ minutes to bring Utah to 114-110.Bjelica, who had 18 points, converted a three-point play and Iman Sumpert made two free throws to finish off the Jazz, who have lost four of five.De’Aaron Fox added 17 points and 13 assists for the Kings, who snapped a six-game losing streak to Utah.Mitchell scored 35 points and awakened the Jazz, who seemed to be slogging through the game until their late surge. Jae Crowder added 16 for Utah.The Kings, quicker to loose balls and crisp on their offensive sets, led by as many as 15 in the first half.Ricky Rubio missed his first seven shots and then suddenly made three in a row in the third quarter. His last shot — a floating 19-foot jumper — gave the Jazz their first lead since the opening moments at 72-71.The Kings quickly regained the lead but couldn’t extend their advantage to double digits until Fox got into the lane on back-to-back possessions for tough floaters that started the Kings’ surge in the final period.GOING THE DISTANCE“Just keep running is the biggest thing for us. Don’t stop,” Sacramento coach Dave Joerger said before the game. “By the end of the game we’re able to run teams down. It’s opening up transition shots.” The Kings outscored the Jazz in fast-break points 14-9.TIP-INSKings: Sacramento’s offense seemed one step ahead of the scrambling Utah defense all night and shot 53 percent from the field and 44 percent on 3-pointers. … Bogdanovich has scored in double figures in five straight games. He missed the first 10 games of the season.Jazz: After Crowder made a 3-pointer while getting fouled, he rested on his back for a bit and got high-fives from several delighted fans in the front row. … Utah never led by more than two after Rudy Gobert started the game with a dunk. Gobert finished with 13 points and 15 rebounds. … The Jazz shot 12 for 39 from 3-point range.UP NEXTKings: At the Golden State Warriors on Saturday evening.Jazz: Visit the Los Angeles Lakers on Friday night. Tags: Basketball/NBA/Utah Jazz Associated Press November 21, 2018 /Sports News – Local Cauley-Stein scores 23 as Kings outlast Jazz 119-110last_img read more

Haws named WCC Player of the Week

first_img11/12 – Rui Hachimura, Gonzaga 1/28 – Colbey Ross, Pepperdine Written by 12/24 – Trey Wertz, Santa Clara Haws led BYU to a pair of road West Coast Conference wins against San Diego (88-82 in overtime) and Loyola Marymount (70-62) while averaging 24.0 points, 7.5 assists and 1.5 steals. He shot 44.8 percent from the field, 37.5 percent from 3-point range and 95.0 percent from the free-throw line. At San Diego, Haws totaled 13 points, eight assists, one block and one steal. After the Cougars overcame a 12-point deficit to take the lead, Haws iced the game by hitting 6 of 6 at the free-throw line in the final 39 seconds. 12/17 – Anthony Townes, Pacific 12/10 – Yoeli Childs, BYU 2/18 – TJ Haws, BYU February 18, 2019 /Sports News – Local Haws named WCC Player of the Week 2018-19 WCC Men’s Basketball Player of the Week Robert Lovell 12/31 – Ajare Sanni, Pacific FacebookTwitterLinkedInEmailSAN BRUNO, Calif. – The West Coast Conference has named BYU junior guard TJ Haws its Men’s Basketball Player of the Week for Feb. 18, 2019.center_img 1/21 – Frankie Ferrari, San Francisco 11/26 – Rui Hachimura, Gonzaga This marks the first WCC weekly honor for Haws and the third for a BYU player this season. Junior forward Yoeli Childs was the WCC Player of the Week on Jan. 14 and Dec. 10. 2/4 – Rui Hachimura, Gonzaga 1/14 – Yoeli Childs, BYU 12/3 – Josh Perkins, Gonzaga 11/19 – James Batemon, Loyola Marymount With Cougars down five, Haws hit a jumper and 3-pointer to give BYU its first tie of the game at 67-all with 6:26 remaining. With 33 seconds to go, Haws made a deep two from the left side to put his team ahead for the first time all evening. In overtime, Haws scored eight points, including 4 of 4 free-throw shooting in the final 26 seconds to help the Cougars hold on for the win. Tags: BYU Cougars Basketball/TJ Haws/WCC/WCC Player of the Week In the win against San Diego, Haws hit 11 of 18 from the field, 3 of 5 from 3-point range and 10 of 11 from the free-throw line for a career-best 35 points to help the Cougars overcome a 14-point second half deficit to win 88-82 in overtime. After a seven-point first half, Haws had 20 points, four assists and two steals to help BYU send the game into overtime. 2/11 – Brandon Clarke, Gonzaga 1/7 – Jade’ Smith, Pepperdinelast_img read more

Sixers bringing back Brown as head coach

first_img FacebookTwitterLinkedInEmailBen Solomon/ESPN Images(NEW YORK) —  Amid uncertainty surrounding the future of 76ers head coach Brett Brown’s time in Philadelphia, managing partner Josh Harris has set the record straight. Harris told ESPN on Monday night that Brown will return as the Sixers head coach next year for his seventh season.Brown met with Harris and GM Elton Brand on Monday  to discuss plans for the franchise’s upcoming offseason. Philadelphia must decide which free agents on their roster to re-sign, including key pieces Jimmy Butler, Tobias Harris and J.J. Redick. The Sixers owe Brown nearly $15 million on a contract extension, set to start next season. Recently, Joel Embiid voiced support for Brown remaining as coach after the 76ers Game 7 loss to the Raptors in the Eastern Conference Semifinals.  Copyright © 2019, ABC Radio. All rights reserved. Beau Lund May 14, 2019 /Sports News – National Sixers bringing back Brown as head coachcenter_img Written bylast_img read more

Zion Williamson eager to end long wait for NBA draft: ‘I just want to hoop’

first_img Beau Lund Written by June 19, 2019 /Sports News – National Zion Williamson eager to end long wait for NBA draft: ‘I just want to hoop’center_img FacebookTwitterLinkedInEmailLou Rocco/ABC News(NEW YORK) — Zion Williamson knows he’s likely to be the No. 1 overall pick in Thursday’s NBA draft. But for now, the equation is simple.“I just want to hoop,” he said. Williamson, who will turn 19 a week after the draft, spent the 2018-19 collegiate season blowing people’s minds as a 6-foot-7, 280-pound athlete at Duke University. He wore a warm smile, already immortalized as a meme during his college career, and a sense of anxious anticipation as he sat down with Robin Roberts for an interview airing Wednesday on ABC News’ Good Morning America.“It’s crazy, honestly, you know, I never saw myself as being a top-3, top-4 pick and for people to think that I could go [No.] 1, it means a lot to me,” he said. “It’s showing that my hard work is paying off, but I just want to get drafted period.”The New Orleans Pelicans hold the top pick when the draft gets underway just after 7 p.m. at the Barclays Center in Brooklyn, New York.No one expects any name other than Williamson’s to be called first.“I don’t play basketball for the money; it was the last thing I thought of when I was a little kid,” Williamson said. “When I was a little kid, I looked at my mom, stepdad, said, ‘I want to be an NBA player,’ just because I love to play the game of basketball like 24/7.”The power forward averaged 22.1 points, 8.9 rebounds and 1.8 blocks per game as a freshman on his way to be named Associated Press national player of the year. His family has said he never seriously considered returning to the school.Sitting with him backstage on Thursday will be his family.“They were the first ones to see something in me, that I didn’t even see in myself, so I’m glad I can have my family with me along this journey,” Williamson said.The forward has already earned one-name status, like LeBron James and Shaquille O’Neal, who he could join as fellow No. 1 overall picks.“Those are big shoes to fill, but I’m not looking to fill those, I’m just looking to be the best Zion I could be,” Williamson said.Ironically, the only hiccup in Williamson’s sterling career came as a result of shoes. The star’s Nike basketball shoes couldn’t hold up to the nearly 300-pound athlete, literally tearing apart during a game against rival North Carolina in February. He missed the final six games of the regular season with a resulting knee sprain, but returned in the conference tournament and looked like his dominant self in three NCAA tournament games.He readily admits that there will be nerves as he’s sitting in the green room, despite his almost certain pick as the top overall player.“I’m probably going to be super nervous. Hopefully I don’t trip and fall when I walk across the stage,” Williamson joked. “I think it’s going to be a lot of emotions, especially if my name gets called, I don’t how I’m going to feel. I don’t know if I’m going to cry, just smile, I guess I’ll see Thursday.”But there is one thing Williamson can be content knowing he’ll be able to say for certain after first dreaming about it as a 5-year-old playing on a miniature hoop.“I will be excited to finally say that I’m an NBA player,” he said.Copyright © 2019, ABC Radio. All rights reserved.last_img read more

Scoreboard roundup — 8/27/19

first_imgAugust 28, 2019 /Sports News – National Scoreboard roundup — 8/27/19 Beau Lund Written bycenter_img FacebookTwitterLinkedInEmailiStock(NEW YORK) — Here are the scores from Tuesday’s sports events:MAJOR LEAGUE BASEBALLINTERLEAGUEBaltimore 2, Washington 0Toronto 3, Atlanta 1Boston 10, Colorado 6AMERICAN LEAGUECleveland 10, Detroit 1Oakland 2, Kansas City 1Houston 15, Tampa Bay 1 Minnesota 3, Chi White Sox 1LA Angels 5, Texas 2NY Yankees 7, Seattle 0NATIONAL LEAGUEChi Cubs 5, NY Mets 2Pittsburgh 5, Philadelphia 4Cincinnati 8, Miami 5St. Louis 6, Milwaukee 3Arizona 3, San Francisco 2LA Dodgers 9, San Diego 0 WOMEN’S NATIONAL BASKETBALL ASSOCIATIONIndiana 86, Las Vegas 71Phoenix 95, New York 82Washington 95, Los Angeles 66Minnesota 93, Chicago 85Connecticut 89, Seattle 70Copyright © 2019, ABC Radio. All rights reserved.last_img read more

Utah Football adds two home games with Dixie State to 2028 and 2030 football schedules

first_imgMarch 6, 2020 /Sports News – Local Utah Football adds two home games with Dixie State to 2028 and 2030 football schedules Tags: Dixie State Trailblazers Football/Utah Utes Football Written by Robert Lovell FacebookTwitterLinkedInEmailSALT LAKE CITY—The Utah football program has added two home games against Dixie State to its 2028 and 2030 schedules, the schools announced today.The first meeting of the two-game agreement will take place Thursday, Aug. 31, 2028, and the second game is scheduled for Thursday, Aug. 29, 2030. Both will be played at Utah’s Rice-Eccles Stadium.Utah and Dixie State have never met in football. The Trailblazers will become an independent member of the Football Championship Subdivision in the summer of 2020 as the school begins transitioning from Division II to Division I.The 2028 Utah non-conference slate is now filled with the Dixie State game scheduled to open the season followed by a Sept. 9 date with BYU at Rice-Eccles Stadium and a Sept. 16 road game at Arkansas. The 2030 opener with Dixie State is the first scheduled by Utah for that season.The complete list of future non-conference games scheduled can be found here.Utah now has 28 non-conference games scheduled between 2020-32, including six against members of the SEC (Florida 2022-23, Arkansas 2026 & ’28, LSU 2031-32), two against a Big 12 program (Baylor 2023-24) and seven against BYU (2020-21, 2024-28).last_img read more