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Understanding the Sexual Recruitment of One of the Oldest and Largest Organisms on Earth, the Seagrass Posidonia Oceanica
RESEARCH ARTICLE Understanding the sexual recruitment of one of the oldest and largest organisms on Earth, the seagrass Posidonia oceanica 1☯ 2☯ 1☯ Laura Guerrero-MeseguerID *, Carlos Sanz-LaÂzaro , Arnaldo MarõÂn 1 Departamento de EcologõÂa e HidrologõÂa. Facultad de BiologõÂa, Universidad de Murcia, Campus de Espinardo, Murcia, Spain, 2 Departamento de EcologõÂa, PabelloÂn 13, Universidad de Alicante, Alicante, Spain ☯ These authors contributed equally to this work. * [email protected] a1111111111 Abstract a1111111111 a1111111111 The seagrass Posidonia oceanica is considered one of the oldest and largest living organ- a1111111111 isms on Earth. Notwithstanding, given the difficulty of monitoring its fruits and seeds in the a1111111111 field, the development of P. oceanica during its sexual recruitment is not completely under- stood. We studied the stages of development of P. oceanica seeds from their dispersion in the fruit interior to their settlement in sediment through histological, ultrastructural and meso- cosm experiments. P. oceanica sexual recruitment can be divided into three main stages OPEN ACCESS that focus on maximising photosynthesis and anchoring the seedlings to the sediment. In Citation: Guerrero-Meseguer L, Sanz-LaÂzaro C, the first stage (fruit dispersion), seeds perform photosynthesis while being transported MarõÂn A (2018) Understanding the sexual recruitment of one of the oldest and largest inside the fruit along the sea surface. In the second stage (seed adhesion), seeds develop organisms on Earth, the seagrass Posidonia adhesive microscopic hairs that cover the primary and secondary roots and favour seed oceanica. PLoS ONE 13(11): e0207345. https://doi. adhesion to the substrate. In the last stage (seedling anchorage), roots attach the seedlings org/10.1371/journal.pone.0207345 to the substrate by orienting them towards the direction of light to maximise photosynthesis. -
The Anthropocene Biosphere
ANR0010.1177/2053019615591020The Anthropocene ReviewWilliams et al. 591020research-article2015 Review The Anthropocene Review 1 –24 The Anthropocene biosphere © The Author(s) 2015 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav DOI: 10.1177/2053019615591020 anr.sagepub.com Mark Williams,1 Jan Zalasiewicz,1 PK Haff,2 Christian Schwägerl,3 Anthony D Barnosky4,5,6 and Erle C Ellis7 Abstract The geological record preserves evidence for two fundamental stages in the evolution of Earth’s biosphere, a microbial stage from ~3.5 to 0.65 Ga, and a metazoan stage evident by c. 650 Ma. We suggest that the modern biosphere differs significantly from these previous stages and shows early signs of a new, third stage of biosphere evolution characterised by: (1) global homogenisation of flora and fauna; (2) a single species (Homo sapiens) commandeering 25–40% of net primary production and also mining fossil net primary production (fossil fuels) to break through the photosynthetic energy barrier; (3) human-directed evolution of other species; and (4) increasing interaction of the biosphere with the technosphere (the global emergent system that includes humans, technological artefacts, and associated social and technological networks). These unique features of today’s biosphere may herald a new era in the planet’s history that could persist over geological timescales. Keywords biosphere, evolution, global ecosystem, neobiotic species, planetary state, production and consumption, technosphere Introduction Humans transport organisms around the globe (McNeely, 2001 and references therein), con- struct unique agricultural and urban ‘anthromes’ for organisms to live in (e.g. Ellis, 2013; Ellis et al., 2012, 2013a, 2013b), and have concentrated biomass into a particular set of plants and animals (e.g. -
Supercentenarians Landscape Overview
Supercentenarians Landscape Overview Top-100 Living Top-100 Longest-Lived Top-25 Socially and Professionally Active Executive and Infographic Summary GERONTOLOGY RESEARCH GROUP www.aginganalytics.com www.grg.org Supercentenarians Landscape Overview Foreword 3 Top-100 Living Supercentenarians Overview 44 Preface. How Long Can Humans Live and 4 Ages of Oldest Living Supercentenarians by Country 46 the Importance of Age Validation Top-100 Living Supercentenarians Continental Executive Summary 10 47 Distribution by Gender Introduction. 26 Top-100 Living Supercentenarians Distribution by Age 50 All Validated Supercentenarians Сhapter III. Top-25 Socially and Professionally Active All Supercentenarians Region Distribution by Gender 29 52 Living Centenarians Top-25 Socially and Professionally Active Centenarians All Supercentenarians Distribution by Nations 30 53 Overview Top-25 Socially and Professionally Active Centenarians Longest-Lived Supercentenarians Distribution by Country 31 54 Distribution by Nation Top-25 Socially and Professionally Active Centenarians All Supercentenarians Distribution by Gender and Age 32 55 Gender Distribution Top-25 Socially and Professionally Active Centenarians Сhapter I. Top-100 Longest-Lived Supercentenarians 35 56 Distribution by Type of Activity Chapter IV. Profiles of Top-100 Longest-Lived Top-100 Longest-Lived Supercentenarians Overview 36 57 Supercentenarians Top-100 Longest-Lived Supercentenarians Regional 38 Chapter V. Profiles of Top-100 Living Supercentenarians 158 Distribution by Gender Top-100 Longest-Lived Supercentenarians Distribution by Chapter VI. Profiles of Top-25 Socially and Professionally 40 259 Age Active Living Centenarians and Nonagenarians Сhapter II. Top-100 Living Supercentenarians 43 Disclaimer 285 Executive Summary There have always been human beings who have lived well beyond normal life expectancy, these ‘supercentenarians’ who lived past 110 years of age. -
New Version of Labour Ministry's Mobile App Offers 33 Services
www.thepeninsula.qa Saturday 18 January 2020 Volume 24 | Number 8140 23 Jumada I - 1441 2 Riyals BUSINESS | 13 SPORT | 18 US-China trade deal Al Ghazali to ease global guides What uncertainty: A Pleasure IMF Chief to win New version of Labour Ministry’s mobile app offers 33 services SANAULLAH ATAULLAH The e-services of THE PENINSULA ‘Amerni’ application The Ministry of Administrative Devel- include housing opment, Labour and Social Affairs has launched the third patch of electronic application follow up, services for ‘Amerni’ application on smart phones in Arabic and English to rent allowance follow save time and efforts of users — indi- up, house purchase- viduals and companies. The third patch includes five new ownership request, services. As of now, the app offers a total and title deed re- of 33 services including 21 services for individuals and 12 services for com- quest, among others. panies, said the Ministry in a post ‘Mobile Application Guide’ published on its website. Android Users, in both languages Arabic The users will now be able to file and English. The user guide is intended complaints against violating manpower to inform the users how to use an recruitment offices. The domestic e-services application - Amerni - for Al Sadd crowned Qatar Cup champions workers can also file formal complaints, the Ministry of Administrative Devel- in addition to other services provided opment, Labour and Social Affairs in Al Sadd’s players and officials pose with the Qatar Cup trophy at Al Sadd Stadium, yesterday. Al Sadd defeated Al Duhail by the Labour Relations Department. Qatar. -
Died On: April 15, 2017 Place of Death: Verbania FAMOUS AS: SUPERCENTENARIAN
Carlo won the German Cuisine in a box. Thank you to Lynn & Dottie for donating. THANK YOU LODGE SISTER ROSE FOR THE GREAT PHOTOS Learning the Tarentella, Anne There was a Comedian to Entertain us. HAPPY BIRTHDAY TO LODGE SISTERS & BROTHERS CELEBRATING IN NOVEMBER Buon compleanno per alloggiare sorelle & fratelli che festeggiano nel Novembre Simonetta Stefanelli November 30, 1954 ROME, ITALY Simonetta Stefanelli is an Italian actress, entrepreneur and fashion designer. Internationally, she is best known for her performance as Apollonia Vitelli-Corleone in the 1972 film The Godfather, directed by Francis Ford Coppola. Her other roles include appearances in Moses the Lawgiver, Scandal in the Family and Three Brothers. In 1992, Stefanelli made her last film appearance in the drama Le amiche del cuore directed by her then husband Michele Placido. AN ITALIAN ACTRESS BORN IN ROME, SIMONETTA STEFANELLI MADE HER FIRST APPEARENCE IN LA MOGLIE GIAPPONESE AND APPEARED IN SEVERAL ITALIAN FILMS BEFORE APPEARING IN HER FIRST INTERNATIONAL ROLE IN THE GODFATHER, AS APOLLONIA, AT THE AGE OF 16. Simonetta Stefanelli was born on November 30, 1954, in Rome, Lazio, Italy. She started acting in Italian movies as a child artist and was about 16 years old when she was offered the role of ‘Apollonia Vitelli– Corleone’ in the movie ‘The Godfather.’ After her performance in ‘The Godfather,’ she received numerous offers from Hollywood which she turned down, as she feared being stereotyped as a sex symbol. She preferred to continue with her career in Italy and appeared in a number of TV serials and movies, such as ‘The King is the Best Mayor,’ ‘The Big Family,’ and ‘Moses the Lawgiver. -
NEBRASKA's CENTENARIANS AGE 107 OR ABOVE — 1867 to 2001
NEBRASKA’S CENTENARIANS AGE 107 OR ABOVE — 1867 to 2001 by E. A. Kral May 1, 2014 update of original published in The Crete News, April 24, 2002, a 40-page supplement Public Announcement for All Nebraskans Effective May 1, 2002, the Nebraska Health Care Association initiated two on-going public service projects on its website to highlight Nebraskans who reach age 107 or above. The NHCA website address is www.nehca.org. First, the NHCA has maintained a roster of living Nebraskans who have attained the age of 107 or above that provides name, birth date, and county in which the person resides. Second, the NHCA has made available access to this updated manuscript version of E. A. Kral’s “Nebraska’s Centenarians Age 107 or Above — 1867 to 2001” but without photographs. Moreover, it has also offered a brief on-going ranking of Nebraska’s supercentenarians in state history, and another document titled “Oldest Twins in Nebraska History.” Relatives, healthcare professionals, and others are asked to notify the NHCA when someone with Nebraska connections reaches age 107 for placement of name, birth date, and county of residence on the living roster. Since age verification may be necessary via census records involving the centenarian’s youth or early adult years, relatives may assist by providing names of parents and location of centenarian during 1900 to 1920. Also please notify the NHCA when the persons on the living roster become deceased so that the roster may be current. The NHCA website address is www.nehca.org and referrals for the living 107-year-old roster may be mailed to Nebraska Health Care Association, 1200 Libra Dr., Ste 100, Lincoln, NE 68512-9332. -
Searching for the Secrets of the Super Old More and More People Are Living Past 110
NEWSFOCUS AGING Searching for the Secrets Of the Super Old More and more people are living past 110. Can they show us all how to age gracefully? They were born when the years still started Perls of Boston University with “18.” They survived global traumas such School of Medicine, head as World War I, World War II, and the Great of the New England Cen- Depression. They didn’t succumb to pan- tenarian Study and its new demic flu, polio, AIDS, Alzheimer’s disease, National Institutes of or clogged arteries. Supercentenarians, or Health–funded spinoff, the people who’ve survived to at least age 110, are New England Supercente- longevity champions. narian Study. Researchers suspect that some Living to 100 is unlikely enough. Accord- of the oldsters included in the tally had already he requires three types of verification: proof ing to one estimate, about seven in 1000 peo- died and that others—or their relatives—were of birth, preferably a birth certificate; proof ple reach the century milestone. And at that lying about their ages. Drawing on Medicare of death, if the person is no longer alive; and age, the odds of surviving even one more year enrollment figures, two U.S. government “continuity” documentation, such as a dri- are only 50–50, says James Vaupel, director of actuaries put the number of supercentenarians ver’s license or marriage certificate, that the Max Planck Institute for Demographic in the year 2000 at a mere 105. And in 2002, shows that the putative supercentenarian is Research in Rostock, Germany. Making it 139 people claiming to be at least 110 were the person listed in the birth record. -
Structure of Mediterranean 'Cnidarian Populations In
Homage to Ramon Marga/et,· or, Why there is such p/easure in studying nature 243 (J. D. Ros & N. Prat, eds.). 1991 . Oec% gia aquatica, 10: 243-254 STRUCTURE OF 'CNIDARIAN POPULATIONS IN MEDITERRANEAN SUBLITTORAL BENTHIC COMMUNITIES AS A RESUL T OF ADAPTATION TO DIFFERENT ENVIRONMENTAL CONDITIONS 2 JOSEP-MARIA GILIl & ENRIe BALLESTEROs .• 1 Insti t de Ciencies del Mar (CSIC). Passeig Nacional, s/n. 08039 Barcelona. Spain 2 � Centre d'Estudis Avanc;:atsde Blanes (CSIC). Camí de Santa Barbara, s/n. 17300 Blanes. Spain Received: March 1990 SUMMARY The presence and abundance of Cnidarians, extremely cornmon in Mediterranean sublittoral benthic communities, exerts a profound effect on the entire structure of such communities, although the roles of Anthozoans and Hydrozoans differ in accordance with their different biological characteristics. Structural differences in benthic cnidarian populations were observed in three sublittoral cornmunities located within 100 m of each other yet differing considerably in light intensity and water movement. Species-area and Shannon's diversity-area curves were computed for each community from reticulate samples constituted by 18 subsamples 2 of 289 cm . Species-area curves were fitted to semilogarithmic functions, while diversity-area curves were fitted to Michaelis-Menten functions by the method of least squares. Species richness, species distribution, alpha-diversity, and pattem diversity were estimated from the fitted curves. Patch size for Anthozoans was smaller than that for Hydrozoans in all three communities. Diversity was greatest in the cornmunities with the lowest and with the highest light intensity and water flow levels, but species richness was highest in the intermediate community. -
Longevity Fitness Financial and Health Dimensions Across the Life Course Advisory Board TABLE OF
Longevity Fitness Financial and Health Dimensions Across the Life Course Advisory Board TABLE OF Peter A. Lichtenberg, PhD, Mary D. Naylor, PhD, RN, FAAN Surya Kolluri, MBA ABPP, FGSA, Chair Marian S. Ware Professor in Gerontology Managing Director, Policy, Planning, and Thought Leadership CONTENTS Director, Institute of Gerontology Director, NewCourtland Center for Director, Merrill Palmer Skillman Institute Transitions and Health Retirement and Personal Wealth Solutions Distinguished University Service Professor School of Nursing Bank of America Professor, Department of Psychology University of Pennsylvania Wayne State University Philadelphia, Pennsylvania Detroit, Michigan Milind M. Shrikhande, Michael Finke, PhD, CFP PhD, MBA Professor of Wealth Management Clinical Professor, Department of Finance Program Director, Wealth Management J. Mack Robinson College of Business Certified Professionals Georgia State University Frank M. Engle Distinguished Chair in Atlanta, Georgia Economic Security The American College of Financial Services Bryn Mawr, Pennsylvania Acknowledgments This report was developed by The Gerontological Society of America and supported by Bank of America. About The Gerontological Society of America and National Academy on an Aging Society The Gerontological Society of America (GSA) is the oldest and largest international, interdisciplinary scientific organization devoted to research, education, and practice in the field of aging. The principal mission of the Society—and its 5,500+ members—is to advance the study of aging and disseminate information among scientists, decision makers, and the general public. GSA’s policy institute, the National Academy on an Aging Society, conducts and compiles research on issues related to population aging and provides information to the public, the press, policymakers, and the academic community. -
Vietnamese Delegation Led by Deputy Prime Minister Concludes Visit
Established 1914 Volume XIX, Number 53 12th Waxing of Nayon 1373 ME Monday, 13 June, 2011 Four political objectives Four economic objectives Four social objectives * Stability of the State, community peace and tran- * Building of modern industrialized nation through the agricultural devel- * Uplift of the morale and morality of the entire nation quillity, prevalence of law and order opment, and all-round development of other sectors of the economy * Uplift of national prestige and integrity and preservation * Strengthening of national solidarity * Proper evolution of the market-oriented economic system and safeguarding of cultural heritage and national char- * Building and strengthening of discipline-flourish- * Development of the economy inviting participation in terms of technical acter ing democracy system know-how and investment from sources inside the country and abroad * Flourishing of Union Spirit, the true patriotism * Building of a new modern developed nation in * The initiative to shape the national economy must be kept in the hands of * Uplift of health, fitness and education standards of the accord with the Constitution the State and the national peoples entire nation Vietnamese delegation led by Deputy Prime Minister concludes visit YANGON, 12 June—Visiting Vietnamese del- egation led by Special Envoy of the Prime Minister of the Socialist Republic of Vietnam, Deputy Prime Min- ister Mr Hoang Trung Hai, attended the opening of Viglacera showroom and resident rep office on Gyobyu Street, near Aungsan Stadium, in Mingala Taungnyunt Township, here this morning. The deputy prime minister spoke on the occa- sion and formally opened the showroom and the resi- dent rep office together with Union Commerce Minis- ter U Win Myint, Yangon Region Chief Minister U Myint Swe. -
Chapter 9. Myths of Life Extension
Chapter 9. Myths of Life Extension Ever since humans became fully aware that they will get old and die, individuals must have wondered about the possibility of extending longevity, or achieving immortality on earth. This has resulted in innumerable myths relating to supposed examples of life-extension, one of the most notable being the 969 year lifespan of Methuselah, as recorded in the Bible. Christian fundamentalists are liable to say that in those days people lived much longer than they do today! These are many other claims, and far too many to list here. The Guiness Book of Records has stated that maximum lifespans of people and animals are some of the hardest records to document. Some of the claims of human longevity have occurred in the 20th century, and as in some cases they were initially accepted by scientists, and they provide good examples of how people are deceived. Many people living in the Caucasus region of the ex-Soviet Union claimed their ages were over 120 years, or even 160 years. There was even a touring troup of centenarian dancers, so it is not surprising the claims received wide publicity, and also wide acceptance. The oldest people were usually males which is intrinsically unlikely as human females live longer that males. Careful scrutiny of these cases, particularly by the gerontologist Zhores Medvedev, has shown that none are backed up by reliable records. In some cases, individuals took on the identity of their father, in others they exaggerated their age to escape military conscription, or they simply added on years, because the societies in which they lived respected the wisdom and experience of very old people. -
Viewed for Over 30 Years As for Ecologists
Reports Ecology, 89(12), 2008, pp. 3261–3267 Ó 2008 by the Ecological Society of America AN EXPERIMENTAL DISTURBANCE ALTERS FISH SIZE STRUCTURE BUT NOT FOOD CHAIN LENGTH IN STREAMS 1 ANNIKA W. WALTERS AND DAVID M. POST Department of Ecology and Evolutionary Biology, Yale University, P.O. Box 208106, New Haven, Connecticut 06520-8106 USA Abstract. Streams experience frequent natural disturbance and are undergoing consid- erable anthropogenic disturbance due to dam construction and water diversion. Disturbance is known to impact community structure, but its effect on food chain length is still a matter of considerable debate. Theoretical models show that longer food chains are less resilient to disturbance, so food chain length is predicted to be shorter following a disturbance event. Here we experimentally test the effect of disturbance on food chain length in streams by diverting stream flow. We found that our experimental low-flow disturbance did not alter food chain length. We did see an effect on body-size structure in our food webs suggesting that food chain length may be an insensitive indicator of disturbance. We suggest that habitat heterogeneity and food web complexity buffer the effect of disturbance on food chain length. The theoretical predictions of disturbance on food chain length are only likely to be seen in homogeneous systems that closely approximate the linear food chains the models are based upon. Key words: disturbance; food chain length; food web; stream community; water diversion. INTRODUCTION longer than floods, increase in intensity with time, and Disturbance is a key force structuring ecological can isolate sections of the stream (Boulton et al.