Stable isotopes document inter- and intra-specific variation in feeding ecology of nine large southern Procellariiformes

first_imgInvestigating the foraging ecology of seabirds is especially challenging given their wide-ranging movements and the practical difficulties of obtaining unbiased information on their feeding behavior. Despite the development of animal-borne tracking devices, several limitations preclude investigations at the scale of a whole community in a given season or year, and, until recently, during the non-breeding period. Here we analyzed δ13C and δ15N in feathers of chicks and adults to investigate inter- and intra-specific variation in the foraging habitat and trophic position of 9 large procellariiform seabirds from 6 southern breeding localities during the breeding and non-breeding periods. Isotopic ratios of each species were generally consistent among different breeding populations, despite the large geographical scale and potential variation in oceanography in surrounding waters. Both spatial and trophic segregation apparently allowed the co-existence of sympatric species in most breeding localities, except at South Georgia, where both δ13C and δ15N in chicks showed high overlap among species, probably resulting from the superabundance of alternative food resources during the summer. Low variance in stable isotope ratios among adults in several species indicated high overlap between individuals in feeding habits and trophic levels (i.e. isotopic specialist populations) during the non-breeding period. By contrast, large isotopic variances and the high within- and between-individual components of the trophic niche width suggested that grey-headed and light-mantled sooty albatrosses are generalists. Based on δ13C, the species that breed in the Southern Ocean can be categorized as residents or subtropical migrants, with the latter including oceanic and neritic subtropical migrants. Albatrosses meet the high energetic challenge of feather synthesis by foraging in different habitats, depending on the length of the non-breeding period. Annual breeders renew their plumage in productive neritic waters in ~4 mo, whereas biennially breeding species moult in less productive oceanic waters over much longer periods (~12 to 16 mo).last_img read more

Spurs face uncertain Cup fate after Rochdale revival

first_imgLondon, United Kingdom | AFP | Tottenham Hotspur were left in FA Cup limbo after being held to a 2-2 draw by lowly Rochdale in a fifth-round tie on Sunday.It seemed Harry Kane’s penalty two minutes from time, which made it 2-1 to the visitors, had seen Spurs straight into the last eight.But Steve Davies’s stoppage-time equaliser saw Rochdale make it 2-2 and earn themselves a money-spinning replay at Wembley, Tottenham’s temporary home this season while the successor ground to White Hart Lane is built. It was a similar story in the fourth round, with Spurs needing to win a Wembley replay before finally seeing off fourth-tier Newport County.Whichever club wins this last-16 tie will face either Sheffield Wednesday or Swansea, who will also need a replay after Saturday’s goalless draw at Hillsborough.Saturday’s draw saw four of the top Premier League’s top five kept apart in the quarter-finals, with Manchester United hosting Brighton — a repeat of the 1983 final won by United in a replay — and Chelsea away to Leicester.Manchester City continue their quest for a historic quadruple of Premier League, Champions League, FA Cup and League Cup with a fifth round trip to Wigan on Monday. ? Mauricio: “These games are so difficult. The most important thing now is to have another possibility to play at Wembley. We’re still alive and we want to go further in the competition.”— Tottenham Hotspur (@SpursOfficial) February 18, 2018Should Pep Guardiola’s men avoid a repeat of the Latics’ shock 2013 FA Cup final victory, City will be at home to Southampton in the last eight.The ties will be played between March 16 and 19.Quarter-final draw:Sheffield Wednesday or Swansea City v Rochdale or Tottenham HotspurManchester United v BrightonLeicester City v ChelseaWigan or Manchester City v SouthamptonShare on: WhatsApplast_img read more

City of Newcastle are champions after finding their rhythm to depose Lytham

first_img The team from City of Newcastle Golf Club in Northumberland can look forward to a trip to France next month after storming through the field to win the English Men’s Champion Club tournament at Romford Golf Club in Essex.The Northumbrian club will be England’s representatives at the European Men’s Club Trophy at Golf du Medoc on October 24-26 after claiming their national Club title for the second time in the last three years.The victory also made up for the disappointment of narrowly missing out on defending the title last year when they finished runners-up to Castle Royal at Huddersfield.The City of Newcastle team comprising Alex Dixon, Phil Ridden and Andrew Minnikin started the final round on two over par 215 and seven shots off the pace set by Royal Lytham & St Annes but they shaved nine shots off that score in the second round with Dixon carding a four under par 67, Ridden shooting a 68 and Minnikin contributing a level par 71.That was enough to see them claim a four-shot victory over Chelmsford Golf Club in Essex on five under par 421 with Northamptonshire County one shot further back on level par 426.“We’re really overjoyed,” said the winning team manager Simon Coultas. “It didn’t look likely after yesterday but we battled away and in the end it proved to be enough.“This tournament has been very good to us over the last three years,” he added. “We’ve got three or four really good county players at the club and that’s held us in good stead.“Alex and Phil were in the team that won in 2017 so they know what it’s like to represent England in Europe. We’re looking forwards to it already.”“I think playing early today probably helped us,” said Dixon. “We were able to post and score and then sit back and let the others try and catch us. I’d always rather do that than have to do the chasing.“We finished third in the team event in France two years ago so it would be great if we could do better than that,” he added. “Phil and I know what it’s all about so we will be able to give Andrew so pointers.”The Chelmsford team comprising Arron Edwards-Hill, Shay McQueen and Brandon Meads were tied for second place with Northamptonshire County on three under par 210 after the opening day with their score helped in no small measure by a 64 from Arron Edwards-Hill and he went on to card a 69 in the second round while Meads shot a 70 and McQueen posted a 76.Edward-Hill’s consolation for seeing his team lose out to City of Newcastle was that his nine-under par 133 total was enough to see him clinch a single shot victory over Northamptonshire County’s Callum Farr for the individual title with Tom Speyer from Harpenden Golf Club in Hertfordshire finishing third after carding two rounds of 68.Farr shot a 65 and a 69 which helped his club finish third in the team event with his teammates Corey Neville and Charlie Salter closing with a 73 and a 74 to finish on level par 426.The second day proved to be something of a disappointment for Royal Lytham & St Annes representatives Callan Barrow, Harry Talarczyk and Jamie Van Wyke who combined to shoot a five-under par 210 on the opening day but then drifted out of contention with a six over par 219 on the second day to finish fourth on 427.For the second day in a row Barrow produced his club’s best score by adding a one over par 72 to his opening 68. Talarczyk carded a 73 while Van Wyke shot a 74. 22 Sep 2019 City of Newcastle are champions after finding their rhythm to depose Lytham Tags: English Champion Clublast_img read more

Leafs hold off Hawks in New Year’s Eve Murdoch Division clash

first_imgThe Nelson Leafs scored just enough goals, blocked just enough shots and managed to get the puck out of their zone just enough times in the final period to edge the Beaver Valley Nitehawks 4-3 in the annual New Year’s Eve Kootenay International Junior Hockey League clash Wednesday at the NDCC Arena.Nelson not only halted a two-game losing skid to the defending KIJHL champs on New Year’s Eve, but also snapped Beaver Valley’s nine-game winning streak to climb to within two points of the Hawks in Murdoch Division standings.”It was huge . . . especially against BV (Beaver Valley),” said Leaf star Rayce Miller following the game.”They were on a big winning streak so it was good to shut them down right before the New Year. And it was good for us also to get a fresh start to start the New Year.”Leading 4-1 after two periods on goals by MIller, with a pair, Matt MacDonald and newcomer Michael Rand, Nelson had to sweat this win out after the Hawks crept to within a goal with two minutes remaining in the period.”We came out kind of flat,” said Miller when asked about the complete domination by the hard-charging Hawks.”But I think towards the end, everyone on the team came together to gut this one out,” Miller added. “Everyone was blocking shots and doing what it takes to win.””They’re a good team but we were just better this game.” Nelson led 1-0 after one period as MacDonald connected on the power play.Rand made it 2-0 before cut the margin to 2-1 with eight minutes left in the second period.That’s when Miller went to work, scoring twice in four minutes to give Nelson the big lead entering the final frame.However, Beaver Valley turned up the tempo on the home side, out shooting the Leafs by a wide margin and scoring twice.The second marker, a blast from the point, coming when Miller was unable to get the puck out of the Leaf defensive zone.But Nelson was able to take this one home by keeping the Hawks away from the net.The final clincher coming when MacDonald won a key faceoff in the Nelson end with six seconds remaining on the clock.Nelson is once again back on the ice for a doubleheader weekend at home, beginning Saturday against Revelstoke Grizzlies at 7 p.m.Sunday, the Leafs host 100 Mile House Wranglers beginning at 2:30 p.m..Meanwhile, Beaver Valley looks to start another winning streak when the club hosts Revelstoke Friday at 7 p.m. in Fruitvale.LEAF NOTES: The Leafs played the game without the services of captain Aaron Dunlap, who remained in Alaska. The Leaf leader is expected to be back with the team for the weekend series. . . . Also missing from the lineup were defenceman Patrick Croome, forwards Dylan Williamson, Blair Andrews and goalie Joey Karrer. The Leaf netminder was out of the lineup due to sickness. . . . Leaf head coach Dave McLellan missed both Beaver Valley games, but will rejoin the team Friday. . . . Nelson had lost the last three New Year’s Eve games — twice to Beaver Valley (3-2, 2013 — 7-5, 2012) and once to Spokane Braves (3-2, 2011).The last time Nelson won the afternoon tilt came in 2009 when Nelson double Spokane 4-2.last_img read more