Thermal dependency of burrowing in three species within the bivalve genus Laternula: a latitudinal comparison

first_imgThe upper thermal limits for burrowing and survival were compared with micro-habitat temperature for anomalodesmatan clams: Laternula elliptica (Antarctica, 67A degrees S); Laternula recta, (temperate Australia, 38A degrees S) and Laternula truncata (tropical Singapore, 1A degrees N). Lethal limits (LT50) were higher than burrowing limits (BT50) in L. elliptica (7.5-9.0 and 2.2A degrees C) and L. recta (winter, 32.8-36.8 and 31.1-32.8A degrees C) but the same range for L. truncata (33.0-35.0 and 33.4-34.9A degrees C). L. elliptica and L. truncata had a BT50 0.4 and 2.4-3.9A degrees C, respectively, above their maximum experienced temperature. L. recta, which experience solar heating during midday low tides, had a BT50 0.7-2.4A degrees C below and a range for LT50 that spanned their predicted environmental maximum (33.5A degrees C). L. recta showed no seasonal difference in LT50 or BT50. Our single genus comparisons contrast with macrophysiological studies showing that temperate species cope better with elevated temperatures.last_img read more

Speech: Community Engagement and Political Stability to Ensure Peace in Abyei

first_imgThank you Mr President. I would like to begin by thanking Under-Secretary-General Lacroix for his presentation and I would also like to thank Special Envoy Haysom both for your presentation and for your excellent work you have done during your tenure to support peace and stability between South Sudan and Sudan and we look forward to working with you in your new role.Mr President, I would like to touch on three issues. First, I would like to talk about the progress that’s been made by UNISFA, and particularly by the Joint Border Verification Monitoring Mechanism (JBVMM), against the benchmarks set out in Resolution 2412 (2018).The UK welcomes the maintenance of standing clearance for all UNISFA air and ground patrols along with both governments’ support of the Mission, particularly ceasing to obstruct the movements of the Mission as we have seen in previous reporting periods.However, as the Netherlands has said, the lack of progress against other benchmarks has been disappointing and we do urge both governments to devote their efforts to change this. Establishing the four remaining JBVMM team sites and holding two meetings of the Joint Political and Security Mechanism must be a priority.While both government’s efforts are essential to progress, we do recognise, as Special Envoy Haysom has said, that wider dynamics, including both government’s focus on the South Sudan peace process and a lack of agreement from local communities for JBVMM team sites have both contributed to delays. Therefore, we believe it is essential, as France has said, that UNISFA and the JBVMM engage local communities so their concerns can be considered and their support garnered.Second Mr President, let me touch on the Secretary-General’s recommendations for UNIFSA which, broadly speaking, we welcome. We support the recommendation to augment the civilian component of UNISFA, particularly via the deployment of community liaison officers. We also acknowledge the Secretary-General’s recommendation to deploy a civilian Deputy Head of Mission and we commend UNIFSA for improving the security situation in Abyei and reducing the need for a large military presence in the area. We welcome therefore Secretary-General’s recommendation that UNISFA’s military component concentrate its deployment along the borders of the Abyei area in light of the finding that cross-border military action is the most likely threat to security in the area.Despite improvements to the security situation, we, like many others, are concerned by reports of increased criminality within the Abyei Area and at the continued delays to establish the joint administrative arrangements, including the Abyei Police Service. We therefore fully support for the recommendation to deploy three formed police units to the three major population centres in the Abyei Area.Third and finally, again, as others have said, only a political settlement can address the underlying causes of this conflict and ensure that long-term stability for the people of Abyei is a reality.It is this Council’s responsibility to ensure that the Mission is resourced appropriately to support this overarching aim. We welcome very much Special Envoy Haysom’s sense of optimism that I detected that Sudan and South Sudan are now more willing and more able to make progress on the political track. I look forward to hearing from them both today on how they intend to do that and of course, they will have our full support.last_img read more

Petr Cech wants Arsenal to respond to their defeat to Chelsea

first_imgPetr Cech called on Arsenal to move on from the disappointment of another defeat to Chelsea to steer their Premier League title challenge back on course. The Gunners had Per Mertesacker sent off after 18 minutes and Diego Costa scored the decisive goal in Sunday’s 1-0 win for Chelsea, which leaves Arsene Wenger’s men three points behind leaders Leicester with 15 games to go. The immediate focus is on the FA Cup which Arsenal have won in the last two seasons. The Gunners play Burnley at the Emirates Stadium on Saturday. Press Association But the next two home Premier League matches will be a further test of their title credentials, against Southampton and Leicester. Arsenal are bidding for a first championship since 2004. “We are only three points off the lead and have Leicester and Southampton at home coming up,” Cech said on arsenal.com. “They are difficult games but if we can keep winning our games, we can go back to the top.” Arsenal beat Chelsea in August’s Community Shield, but are without a league win against their rivals in nine games, since October 2011. Midfielder Mathieu Flamini added: “We are fighting for the title and it is frustrating. “We gave it everything and it was not easy against 11 men, but what can I say? “It is a long run and we still have to fight and move forward. It is only a game but (losing to Chelsea) is frustrating and a disappointment.” Arsenal are without a league goal against Chelsea in more than nine hours, since Theo Walcott’s strike in defeat at Stamford Bridge in January 2013. Flamini had a fine opportunity in the first half, but rather than head it, he tried to acrobatically divert the ball in. He added: “I thought I could take it with one touch but it was going very quickly so it was hard.” Wenger clung to the positives of the performance, although he admitted it would be difficult to raise spirits after the loss. Wenger told Arsenal Player: “We had such a high expectation level and to lose a game the way we did it it’s really frustrating and difficult to accept. “I feel we couldn’t play with our real team for 90 minutes. I was very disappointed. “In recent games we lost we had really hard decisions against us, against Southampton and (against Chelsea). “We had a good attitude, a fantastic spirit. Despite a result that is negative, I think we should come out with even more belief.” last_img read more

Last-gasp Sterling Goal Restores City’s Eight-point Lead

first_imgPREMIERSHIPRaheem Sterling’s 96th-minute winner sank Southampton to give Manchester City a club-record 12th-successive Premier League victory last night. The win also restores the Citizens eight-point lead at the top of the table.Sterling had scored decisive late goals in City’s previous two wins, over Feyenoord and Huddersfield, but his third strike of the week was his most dramatic of the lot, and sparked wild celebrations from City boss Pep Guardiola and his bench.City had taken the lead at the start of the second half when Saints defender Virgil van Dijk got the final touch on Kevin de Bruyne’s free-kick. But it appeared Saints got their reward for a determined display when Romeu swept home Sofiane Boufal’s pull-back with 15 minutes remaining.Sterling, who has now scored 13 goals this season, had other ideas.He had already seen a goal disallowed for a foul on Saints keeper Fraser Forster moments earlier, but was not to be denied – cutting in from the left, exchanging passes with De Bruyne and bending the ball past Fraser Forster.Guardiola’s side had already made the most successful start in Premier League history, with 37 points from their first 13 games.This win saw them become the first side to reach 40 points from 14 games, and maintains the advantage of eight points over Manchester United that they had at the start of the weekShare this:FacebookRedditTwitterPrintPinterestEmailWhatsAppSkypeLinkedInTumblrPocketTelegramlast_img read more