Category: pkykliei

Sublittoral epifaunal communities at Signy Island, Antarctica. I. The ice-foot zone

first_imgPhotographs were taken every 0.5 m along three transects of 5.5 m length on shallow rock faces at Signy Island, Antarctica, during the austral summer of 1991/1992. The percentage cover of substratum ranged from 0 to 100% and the colonising communities included representatives of ten phyla. The zone from mean low-water neap level to 1.5 m depth was mostly devoid of organisms as a result of the seasonal formation of the encrusting ice foot. Coralline and macroalgae dominated from 2 to 3 m, and animal groups from 3.5 to 5.5 m. Bryozoans, and to a lesser extent sponges, were the most abundant animal phyla. Within the bryozoans a succession of colonisation of different species was observed, the most abundant two of which occupied >80% of substratum in places. Substratum type seemed to be the main factor influencing community development in the shallow sublittoral at Signy Island, although ice impact prevents community development in the top 1.5 m and limits it over the rest of the transect down to 5.5 m. Depth and profile of substratum also influenced communities within this depth range (particularly taxonomic composition).last_img read more

Low summer temperatures: a potential mortality factor for high arctic soil microarthropods?

first_imgThroughout the summers of 1992–1994 the low temperature performance of soil microarthropods at Ny Ålesund, Spitsbergen (78 °56′N 10 °53′E), was investigated. Species studied were the Collembola Hypogastrura tullbergi (Schäffer), Onychiurus arcticus (Tullberg) and Onychiurus groenlandicus (Tullberg) and the mites Diapterobates notatus (Thorell), Hermannia reticulata (Thorell), Camisia anomia Colloff and Ceratoppia hoeli (Thor). The results show that: (i) The supercooling ability of these animals decreased rapidly on regaining activity in spring. For example, the supercooling point (scp) of H. tullbergi when heat extracted from frozen ground, decreased from −20 to −8 °C within 4 h. Population scp profiles of all species determined throughout the summer showed distinct bimodal distribution; (ii) starvation for 14 days, desiccation or a combination of both, resulted in little change in the mean scp of the collembolan O. arcticus; (iii) survival of the animals after a brief exposure to a sub-zero temperature was poor, in either humid or dry atmospheres. For example, 77% of H. tullbergi died after cooling to −5 °C at 1 °C min−1. Comparison with scp data indicates that animals died before they froze; (iv) all species examined showed some locomotory ability at temperatures approaching −3 °C; (v) polyols occurred in low concentrations, although elevated levels of glucose were observed in early spring and late autumn in O. arcticus; and (vi) soil temperature declined to −29.6 °C in the winter of 1992/93 and remained below zero for up to 289 days and the animals can be encased in ice for 75% of the year. Average daily soil temperatures for July and August rarely exceed 8 °C and were typically in the range 3–6 °C. Estimation of previous years soil temperatures from screen temperature records indicate that July /August ground surface temperatures < 0 °C occurred on 25 and 28 occasions between 1969–1993 at the polar semi-desert and tundra heath sites respectively; but, that soil temperatures at a depth of 3 cm are buffered against temperature extremes and temperatures below 0 °C are rarely encountered. The consequences for the soil microarthropod fauna of such extended periods of low temperature and the effects of climate change on these species are discussed.last_img read more

Temporal variations in fatty acid composition of deep-sea holothurians: evidence of bentho-pelagic coupling

first_imgFatty acid biomarkers were used to examine the diet of deep-sea holothurians. We collected 3 species from the Porcupine Seabight and Porcupine Abyssal Plain, NE Atlantic, between 800 and 4850 m in August 2001 (summer), March 2002 (pre-spring bloom), and October 2002 (autumn). Of these, 2 species, the abyssal Amperima rosea and the bathyal Bathyplotes natans, showed significant variations in fatty acid compositions. These are likely to be seasonal. Polyunsaturated fatty acids (PUFAs) were dominant within muscle tissue of both species during August 2001 and October 2002, in particular 20:4 (n-6), 20:5 (n-3) and 22:6 (n-3). During March 2002, prior to the spring bloom, there were substantially lower proportions of PUFAs in both species, and increased amounts of mono-unsaturated fatty acids (monoenes), particularly the bacterially-derived biomarkers 18:1 (n-7) and non-methyl uninterrupted dienes (NMIDs). In contrast, the fatty acid composition of the third species, the abyssal Deima validum, remained relatively stable, with muscle tissue containing a high proportion of PUFAs during pre- and post-spring-bloom periods. A further 6 species were sampled in March 2002 and October 2002. Across all these species, 3 patterns of fatty composition were evident: (1) Laetmogone violacea had higher proportions of PUFAs in October than in March; (2) Psychropotes longicauda and Benthogone rosea had lower proportions of PUFAs in October than in March; (3) Deima validum, Oneirophanta mutabilis, Paroriza pallens and P. prouhoi had unchanged fatty acid compositions during these contrasting periods. These differences may be related to the varying reproductive strategies of the species. The implications of changes in fatty acids for reproductive processes, and how these could be factors determining allocation of lipid resources in gonads, is discussed.last_img read more

USS Chafee Joins US 7th Fleet AOR

first_img View post tag: fleet View post tag: News by topic May 25, 2015 USS Chafee Joins US 7th Fleet AOR The Arleigh Burke-class guided-missile destroyer USS Chafee (DDG 90) entered the U.S. 7th Fleet area of responsibility (AOR), May 22, after departing from her homeport of Joint Base Pearl Harbor-Hickam, Hawaii, May 18.Commanded by Cmdr. Shea Thompson, the ship and crew of more than 300 Sailors, is scheduled to conduct theater security cooperation engagements and maritime security operations while maintaining stability in the Indo-Asia-Pacific region.Chaffee’s will initially participate in the Oceania Maritime Security Initiative (OMSI), a joint Department of Defense, Department of Homeland Security and Department of Commerce program, which supports maritime law enforcement operations to administer U.S. and Pacific Island Nations fisheries laws and the suppression of illicit activities.Chafee is a multi-mission ship with strike warfare, anti-air warfare, anti-submarine warfare and anti-surface warfare capabilities designed to operate independently or with an associated strike group.Image: US Navy View post tag: 7th View post tag: AOR View post tag: Navy View post tag: Naval Authorities View post tag: Asia-Pacific Back to overview,Home naval-today USS Chafee Joins US 7th Fleet AOR View post tag: US View post tag: USS Chafee Share this articlelast_img read more

Spanish frigate trains with Seychelles Coastguard

first_img View post tag: ESPS Santa Maria Authorities View post tag: The Seychelles Share this article View post tag: EUNAVFOR View post tag: Op Atalantacenter_img Spanish Navy frigate ESPS Santa Maria, currently deployed to Operation Atalanta, has arrived in the Seychelles for a port visit.During the port visit ESPS Santa Maria sailors took the opportunity to conduct maritime training exercises with the Seychelles Coastguard and Maritime Police Unit.The training focused on how to approach and then board a vessel at sea which has possible assailants or pirates on board.The training formed part of Operation Atalanta’s role to support the EU’s wider efforts to strengthen maritime security and help develop regional states’ capabilities at sea to ensure that piracy remains suppressed in the Indian Ocean and Gulf of Aden.At the end of the port visit, ESPS Santa Maria will return to her counter-piracy patrols off the Somali coast. October 5, 2016 Back to overview,Home naval-today Spanish frigate trains with Seychelles Coastguard on port visit Spanish frigate trains with Seychelles Coastguard on port visitlast_img read more

Pool – Groundskeeper Assistant (Hourly/Casual)

first_imgRequisition IDreq9 – High school diploma or equivalent- Experience in basic landscape maintenance. Employment TypeCasual Employee Position Summary This Hourly Hiring Pool represents current or potential hourlynon-benefitted job openings in this employment category. There isno guarantee of employment from this hiring pool. Positions are notbenefitted. Jobs are located in any of several campuses and centersthroughout the PCC district. Hours and schedules vary.Assists in a wide range of landscape maintenance duties, workingsafely with gas and diesel powered equipment including mowers, andattending to plants, trees and lawns on assigned campuses. Performsdaily routine maintenance, fencing and grounds features as needed.Incumbent is a contributor within the department and campus staffand students. Job requires ordinary conversational skills andcourtesy to exchange information and assistance which is routine innature.Compensation category:Service Assistant/Maintenance – Casual Employment.Schedule: 20-40 per week – schedule is flexible.Pay is $12 per hour. There are no benefits associated with casualpositions.Hourly Groundskeeper Assistants typically rotate among thefollowing job tasks and work stations on a daily /weeklybasis. Basic Qualifications Portland Community College is committed to hiring and retaininga diverse workforce. We are an Equal Opportunity Employer, makingdecisions without regard to race, color, religion, sex, sexualorientation, gender identity, national origin, disability, or anyother protected class. Physical Requirements / Working ConditionsWork Environment:Work is performed primarily outdoors, on varying terrain in alltypes of extreme weather conditions. Positions involve exposure tohazards and ventilation problems and noise extremes, high vehiculartraffic and congested areas. Travel between college locations usingpersonal vehicle may be required.Physical Requirements:Position requires shoveling of heavy materials and the use ofequipment such as mowers, pruners, leaf blowers, sprayers, andedger’s. Strength and agility, and extended standing and heavylifting are required. Veterans: DD214Disabled Veterans: DD214 and Letter from the Departmentof VA Portland Community College complies with the Oregon Veterans’Preference in Public Employment law which provides qualifyingveterans and disabled veterans with preference in employment.You will be given instructions during the application processto claim Veterans’ Preference in the recruitment of this position,and to provide the documents required for verification ofeligibility. Please do not send your documentation to thehiring manager directly.For verification of eligibility, please submit the followingdocumentation: Pool – Groundskeeper Assistant (Hourly/Casual)last_img read more

Magdalen LGBTQ+ and Entz reps sorry for ‘insensitive’ bop theme

first_imgMagdalen College JCR Entz and LGBTQ Reps have formally apologised after jointly proposing a “Nineteen GAYties” themed bop.The theme was subsequently changed to “80s Icons” after members of the JCR expressed concerns that the theme could have encouraged appropriation of the LGBTQ community.A student wrote on Oxfess this week: “I’m at Magdalen and I’m a gender non-binary gay man. With the bop fiasco, flying the rainbow flag and now this obscene JCR motion, I have never felt less welcome anywhere.“When the bop email came through I cried for the first time since coming to uni. When I saw the JCR motions this week I cried again.“I hate that my sexuality is made into a spectacle.“I hate that people who have no clue about gender identification issues got to vote on it; you should have all abstained.“If the college does fly the rainbow flag for a whole month I don’t know what I’ll do. Why do people want to be singled out? Why does who I fall in love with mean I merit a flag?“Why am I supposed to be paraded around as something exciting and fun and rainbow-coloured? I hate the whole thing and the LGBT reps could not represent me less.”In an email sent to members of the JCR, LGBTQ rep Phoebe Spruce said: “Felan and I take full responsibility for the decision to hold an LGBTQ centred Bop, and for the theme being the 1980s, and we deeply apologise to anyone who felt unsafe or victimised by this bop, and felt they could not raise their concerns with us.“My intention was to celebrate the queer community at Magdalen, and follow on from the final bop last year, which was also LGBTQ focused. We did not intend for the focus to be on the unfortunate treatment of the community during this decade or make a mockery of the people, nor the situation, but rather to be a celebration of the community, and to partake in some of the 80s’ fun party atmosphere. (And, to be quite honest, the wordplay was quite convenient).“We also intended for the theme to celebrate the music of the 1980’s, especially the queer artists, who did feature heavily during this time. We do understand that it is still perhaps an insensitive choice, and in hindsight could have been chosen more aptly.“We do wish for the bop to be a safe and welcoming environment for all members of the college, and so we will be altering the bop theme to 80’s icons, so as to not create an uncomfortable environment.“Hopefully the change of theme and focus will address these issues, and I sincerely hope this will not put anyone off from attending the bop or subsequent LGBTQ events. Again, sincere apologies for the distress this may have caused.”The entz team added: “As the Entz team we would like to reiterate the sentiment expressed by Felan and Phoebe.“Bops are intended to be a fun environment and an escape from work where everyone should feel safe.“Hopefully this change of theme should keep the bop fun whilst addressing the issues mentioned above. We also ask that bop attendees please keep their costumes appropriate and sensitive.”last_img read more

Petition launched to protect UK’s role in Erasmus

first_imgA petition to put pressure on the government to protect the UK’s role in the EU’s Erasmus scheme has received over 26,000 signatures.  Layla Moran, the Oxford MP who pushed the amendment, said of the programme: “The EU has achieved something our parents could only dream of: making studying abroad fashionable and affordable. Oxford is one of the many UK institutions which makes use of Erasmus to support their own students while studying abroad, as well as receiving a number of incoming students from across Europe.  Since students are given funding for living costs by the programme and are not required to pay tuition fees for their overseas studies, individuals from a range of backgrounds are given the opportunity to develop the key life skills which come from living and working abroad. Funding support is also available for students with physical, mental, or health-related conditions. The vote has caused a backlash among the British public, and many are sharing the petition or expressing their outrage on social media pages. Among the individuals to assert her opposition to the government’s decision is Dr Anna K. Bobak, a fellow at Stirling University, who tweeted: “Apparently continuing Erasmus is not a priority for the British Government after Brexit. Fostering student exchange, cultural diversity, and widening horizons are not important enough. Erasmus is not just a ‘gap year’, it’s an enormous learning opportunity.”center_img MPs voted against the Liberal Democrats’ amendment to the Withdrawal Agreement Bill, which would have required the government to negotiate full membership to the EU’s Erasmus+ education and youth programme. “The benefits are huge: learning a new language, picking up skills and work experience, building lifelong friendships and providing a huge boost to your confidence and independence. Without Erasmus, the opportunity to study abroad is only available to a select few.” The petition is sponsored by Scram News and can be found on the Action Network website at https://actionnetwork.org/forms/save-erasmus. Erasmus (European Region Action Scheme for the Mobility of University Students) is an EU-funded programme which organises student exchanges across the continent. Exchanges enable students to either study part of their degree or undertake a work placement in another European country. last_img read more

The Pawprint Lodge Presents Seven Deadly Sins…One Delicious Temptation  to Benefit Another Chance for…

first_imgDelight your senses with a sinful night of indulgence featuring delicious bourbons, select wines and delectable desserts.  The “Seven Deadly Sins…One Delicious Temptation” event, presented by The Pawprint Lodge, will offer tastings of 3 different bourbons and 4 wines, expertly paired with sinfully rich desserts.  Being held at the beautiful and chic Blush Ultralounge, event attendees will swoon from the sultry sound of Angel Rhodes.  It would be a sin to miss this pleasurable affair.  Please join us in supporting “Seven Deadly Sins…One Delicious Temptation” wine, bourbon and dessert tasting to be held on Friday, September 30, 2016.This gratifying experience will help raise funds for Another Chance for Animals.  ACA is dedicated to the rescue, care and placement of homeless animals in the area, working diligently to find forever homes and loving families for these animals.  Come out, don’t be greedy, show your pride and give to Evansville’s homeless animals.Tickets can be purchased at The Pawprint Lodge, The Diamond Galleria or through Eventbrite:  https://www.eventbrite.com/e/seven-deadly-sinsone-delicious-temptation-tickets-26065609941FacebookTwitterCopy LinkEmailSharelast_img read more

Bob Weir To Reunite Campfire Tour Band At Newly Announced Festival Appearance

first_imgAfter releasing his first solo album in decades, Grateful Dead guitarist Bob Weir put together an acoustically-oriented band for a Campfire Tour throughout the month of October. The brief run saw Weir and his bandmates travel coast to coast, playing a mixture of tunes from the new album Blue Mountain as well as Grateful Dead classics. Now, it seems that fans will have another opportunity to catch Bob Weir and the Campfire Boys, as the band has been announced as a headliner of the MusicNOW Festival in Cincinnati, OH on January 12th.The booking makes sense, considering that MusicNOW was founded by Bryce Dessner of The National. Dessner, along with Aaron Dessner, Bryan Devendorf, Scott Devendorf and Josh Kaufman, comprise the Campfire Boys backing band for Weir. Aaron Dessner was an original member of the Campfire Boys band, but a family emergency forced him to miss the tour; Steve Kimock and Jon Shaw were brought in as replacements. The original lineup should be included in this upcoming January show.Tickets for this performance will go on sale next Monday, November 21st. More information about MusicNOW can be found on their website. You can watch the band performing “Morning Dew” with John Mayer at a recent Los Angeles performance, below.Fingers crossed that this means more tour dates are coming, but we’re happy to see Weir back on the road in any capacity. He’ll also be performing with Tom Hamilton’s American Babies tonight, and will be at Los Muertos Con Queso in January as well. Details here.[H/T JamBase // Photo by Steve Rose]last_img read more