Ursinus College Alumni Journal, November 1967

75 years to Pluto • Welcome alumni! Oldtimers return to campus on Homecoming Day • Students cheer Loyalty Fund kick-off • Business & Pleasure • Honored on Founders\u27 Day • Habari safari: Ursinus men go to Africa • Contemporary drama • Development: Ursinus charts a course for the decade ahead • From the President • Birds of a feather gather together • Radio station WRUC entertains and informs the Collegeville community • Florida physician speaks in Yugoslavia • Walter Emerson Baum art show • Campus clippings: Graduate teacher training; Neighborhood dinner; Fall enrollment; End of an era; Parents day; New faculty members; Dutch visitor; Evening school • Sporting scene: Soccer; Hockey; Football; Cross country wins 11 straight • Class notebook • Weddings • Births • In memoriam • The business dollar in educationhttps://digitalcommons.ursinus.edu/alumnijournal/1090/thumbnail.jp

An Introduced Predator Alters Aleutian Island Plant Communities by Thwarting Nutrient Subsidies

The ramifying effects of top predators on food webs traditionally have been studied within the framework of trophic cascades. Trophic cascades are compelling because they embody powerful indirect effects of predators on primary production. Although less studied, indirect effects of predators may occur via routes that are not exclusively trophic. We quantified how the introduction of foxes onto the Aleutian Islands transformed plant communities by reducing abundant seabird populations, thereby disrupting nutrient subsidies vectored by seabirds from sea to land. We compared soil and plant fertility, plant biomass and community composition, and stable isotopes of nitrogen in soil, plants, and other organisms on nine fox-infested and nine historically fox-free islands across the Aleutians. Additionally, we experimentally augmented nutrients on a fox-infested island to test whether differences in plant productivity and composition between fox-infested and fox-free islands could have arisen from differences in nutrient inputs between island types. Islands with historical fox infestations had soils low in phosphorus and nitrogen and plants low in tissue nitrogen. Soils, plants, slugs, flies, spiders, and bird droppings on these islands had low δ15N values indicating that these organisms obtained nitrogen from internally derived sources. In contrast, soils, plants, and higher trophic level organisms on fox-free islands had elevated δ15N signatures indicating that they utilized nutrients derived from the marine environment. Furthermore, soil phosphorus (but not nitrogen) and plant tissue nitrogen were higher on fox-free than fox-infested islands. Nutrient subsidized fox-free islands supported lush, high biomass plant communities dominated by graminoids. Fox-infested islands were less graminoid dominated and had higher cover and biomass of low-lying forbs and dwarf shrubs. While δ15N profiles of soils and plants and graminoid biomass varied with island size and distance from shore, after accounting for these effects differences between fox-infested and fox-free islands still existed. Fertilization over four years caused a 24-fold increase in graminoid biomass and a shift toward a more graminoid dominated plant community typical of fox-free islands. These results indicate that apex predators can influence plant productivity and composition through complex interaction web pathways involving both top-down forcing and bottom-up nutrient exchanges across systems. Read More: http://www.esajournals.org/doi/abs/10.1890/05-049

Ursinus College Alumni Journal, August 1968

A special responsibility • Capp quips cleverly at commencement • Alumni Day \u2768: The happy time; The business of the day; Election winners take office; Two distinguished graduates honored; A salute to individuals & organizations; Picture of a perfect day • Weighing the worth of Ursinus • What is a college? • Alumni award winner recalls Ursinus past • Alumni classes support college in 1967-1968 • Call it animal faith, if you like • All-Ursinus anniversary drive • From the President • Dr. James E. Wagner retires as vice-president • Development department increases staff • Campus clippings: New faculty members; Chapter scholars; Tax tip on the surcharge; Board elects three • Class notebook • Weddings • Births • In memoriamhttps://digitalcommons.ursinus.edu/alumnijournal/1092/thumbnail.jp

Ursinus College Alumni Journal, Spring 1969

Mark your calendar • Mailer: Anatomizer of the moral malaise • From the President • The dimensions of history • Centennial celebration report • Ursinus names new alumni director • Revised Alumni Association constitution • The end of an era • Financial development report: steady progress • A bride for the first time • Candidates for office • Girls\u27 field hockey review • Ursinus Women\u27s Club: A record of achievement • Campus clippings: 100 years ago; News media report; Coach and athlete • Class notes • In memoriam • Weddings • Birthshttps://digitalcommons.ursinus.edu/alumnijournal/1094/thumbnail.jp

Ursinus College Alumni Journal, November 1968

Ursinus College calendar • Politics 1968: That was the year that was • From the President • All-Ursinus anniversary drive: A report from the National Chairman • Stained glass on campus • An end of Pax Americana • Freeland Hall: A birthplace revisited • Episodes in the life of Freeland Hall • Homecoming 1968 • Centennial: The liberal arts in higher learning • Sports scene: Miss Snell honored; Harriers keep winning; Mills keeps kicking • Ursinus honors four at Founders\u27 Day • Church appeal gains momentum • Class of \u2772: A pictorial essay • Campus clippings: Alumni award planned; Television stars; Beatle buff on campus; Subscribe to the Weekly • Class notes • Weddings • Births • In memoriamhttps://digitalcommons.ursinus.edu/alumnijournal/1093/thumbnail.jp

Ursinus College Alumni Journal, March 1968

Why can\u27t we have plays like we used to have? • Alumni respond to a questionnaire • Dr. Maurice Whitman Armstrong • Alumni Loyalty Fund mid-year report • From the President • Interview: Dr. Millard E. Gladfelter • Some plain facts about Ursinus • Candidates for office • Committee on future giving meets • Campus clippings: New faculty members; Future beyond tomorrow; Ursinus evaluated; Advanced study; New history chairman • Nudity in films: a point of view • For the sake of an old pal • Sporting scene: Basketball team excels; Cross-country team undefeated; All sports banquet; Wrestling • Class notebook • Weddings • Births • In memoriam • Letters to the editorhttps://digitalcommons.ursinus.edu/alumnijournal/1091/thumbnail.jp

Ursinus College Alumni Journal, August 1967

Exposure \u2767 Ursinus • Viewpoint at commencement time: Means to an end; Toward freedom; Liberal morality; Open-minded attitude; Quality vs. quantity • From the President • What makes Suzy a language dud? • The paradox of urbia: an interview • Negro voices of the city • Springtime was alumni time • Dr. Myers wins alumni award • Dr. Wessel speaks on urbia • Alumni giving climbs in 1967 • Campus clippings: Collegeville area grows; Staigers tour world; Color film; Miss congeniality; New Board members; Placement service; Schultze promoted; Humble gift; Include Ursinus in your will • Sporting scene: Tennis; Baseball; Track • Anatomy of medical school life • Class notebook • Faculty members speak at spring regional meetings • Weddings • Births • In memoriam • Physicians Club meets •https://digitalcommons.ursinus.edu/alumnijournal/1089/thumbnail.jp

BMQ

BMQ: Boston Medical Quarterly was published from 1950-1966 by the Boston University School of Medicine and the Massachusetts Memorial Hospitals

The Ursinus Weekly, March 6, 1969

Officers inducted; Emig emphasizes new responsibility • American dream, brotherhood highlight Festival of the Arts • USGA officers interviewed; Communication gap stressed • Placement interviews scheduled • 200 attend Lorelei; Fischer crowned king • Semi-formal ball highlights junior-senior weekend • Editorial: Potpourri - Or, Could this ever happen here? • State set to punish protestors; Laws threaten civil liberties • Letters to the editor • Remark • Lantern literary lapse termed titanic bomb • Staying out of uniform: A practical guide for the Ursinus male, part I • Whose risk? • Columnist proposes solution to UC\u27s dearth of black students • Albright draws Fifth Dimension • Racism symposium set for March 20 with Lincoln Univ. • Dorm lounges opened; Slacks rule slackened • Rice discusses status for Phi Beta Kappa • Ursinus grapplers rally to win over Drexel, 22-13 • New gym complex to include pool • Carson paces Bearettes over Gettysburg • Badminton team wins six in row • Trackmen run at Swarthmore and Delaware • Gillespie hits 37 points to lead Bears over Swarthmore in finale • Girl swimmers win over Penn and Elizabethtown • Junior varsity hoopmen finish with 11-6 record • Dickinson frat system defended • UC celebrates centennial with unique innovation • Forum features Howellhttps://digitalcommons.ursinus.edu/weekly/1171/thumbnail.jp

A Novel CCR5 Mutation Common in Sooty Mangabeys Reveals SIVsmm Infection of CCR5-Null Natural Hosts and Efficient Alternative Coreceptor Use In Vivo

In contrast to HIV infection in humans and SIV in macaques, SIV infection of natural hosts including sooty mangabeys (SM) is non-pathogenic despite robust virus replication. We identified a novel SM CCR5 allele containing a two base pair deletion (Δ2) encoding a truncated molecule that is not expressed on the cell surface and does not support SIV entry in vitro. The allele was present at a 26% frequency in a large SM colony, along with 3% for a CCR5Δ24 deletion allele that also abrogates surface expression. Overall, 8% of animals were homozygous for defective CCR5 alleles and 41% were heterozygous. The mutant allele was also present in wild SM in West Africa. CD8+ and CD4+ T cells displayed a gradient of CCR5 expression across genotype groups, which was highly significant for CD8+ cells. Remarkably, the prevalence of natural SIVsmm infection was not significantly different in animals lacking functional CCR5 compared to heterozygous and homozygous wild-type animals. Furthermore, animals lacking functional CCR5 had robust plasma viral loads, which were only modestly lower than wild-type animals. SIVsmm primary isolates infected both homozygous mutant and wild-type PBMC in a CCR5-independent manner in vitro, and Envs from both CCR5-null and wild-type infected animals used CXCR6, GPR15 and GPR1 in addition to CCR5 in transfected cells. These data clearly indicate that SIVsmm relies on CCR5-independent entry pathways in SM that are homozygous for defective CCR5 alleles and, while the extent of alternative coreceptor use in SM with CCR5 wild type alleles is uncertain, strongly suggest that SIVsmm tropism and host cell targeting in vivo is defined by the distribution and use of alternative entry pathways in addition to CCR5. SIVsmm entry through alternative pathways in vivo raises the possibility of novel CCR5-negative target cells that may be more expendable than CCR5+ cells and enable the virus to replicate efficiently without causing disease in the face of extremely restricted CCR5 expression seen in SM and several other natural host species