195 research outputs found

    The Grizzly, December 7, 1999

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    Student Crimes On College Campuses • Biology Major Woes: Schedule Changes Leave Students Frustrated • Rich Barrett Scores his 1,000th Career Point • Talent Show Displays Ursinus Students\u27 Skills • AIDS Quilt Displayed in Helfferich Gym • Democratic Candidate for U.S. Senate Will Speak at Ursinus • Omwake: The House of Ill Repute • Final Exam Schedule • Lovin\u27 it at Louie\u27s • Letter to the Editors • Singing Group Edges out Magician • Ursinus College Choir Presents Messiah • Women\u27s Volleyball; The Year in Review and their Run to the ECAC\u27s • Wrestling Struggles in Tourney • Men\u27s Hoopsters Net First Win • Ursinus Swimming Falls to Red Devils of Dickinson • Seniors Remembered: Teammates Reflect on Departing Upperclassmenhttps://digitalcommons.ursinus.edu/grizzlynews/1454/thumbnail.jp

    The Grizzly, September 14, 1999

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    Tragic Loss for Ursinus College • A Computer Makeover • Summer Research Experience • Freshman Orientation: Breaking in the Baby Bears • Car Owners Beware: Vehicle Cloning Criminals Multiplying to Collegeville Area • Ursinus Chapter of Best Buddies Begins Second Year • Life in Collegeville: Still Just a Rat in a Cage • Career Services Gets Connected • Opinion: Creationism is a Religious Doctrine, not a Viable Science ; What is and What Never Should be: The Rise and Fall of MTV\u27s Social Relevance • This is a Story of Obesity, Sexual Ambiguity, Self-Delusion and Madness • UC Gridders Grab First Win Over Leb Val • UC Field Hockey Under New Management • 80th Season of Bears Field Hockey Beginshttps://digitalcommons.ursinus.edu/grizzlynews/1444/thumbnail.jp

    Lead exposure of mainland Australia\u27s top avian predator

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    Lead (Pb) toxicity, through ingestion of lead ammunition in carcasses, is a threat to scavenging birds worldwide, but has received little attention in Australia. We analyzed lead exposure in the wedge-tailed eagle (Aquila audax), the largest raptor species found in mainland Australia and a facultative scavenger. Eagle carcasses were collected opportunistically throughout south-eastern mainland Australia between 1996 and 2022. Lead concentrations were measured in bone samples from 62 animals via portable X-ray fluorescence (XRF). Lead was detected (concentration \u3e 1 ppm) in 84% (n = 52) of the bone samples. The mean lead concentration of birds in which lead was detected was 9.10 ppm (±SE 1.66). Bone lead concentrations were elevated (10–20 ppm) in 12.9% of samples, and severe ( \u3e 20 ppm) in 4.8% of samples. These proportions are moderately higher than equivalent data for the same species from the island of Tasmania, and are comparable to data from threatened eagle species from other continents. Lead exposure at these levels is likely to have negative impacts on wedge-tailed eagles at the level of the individual and perhaps at a population level. Our results suggest that studies of lead exposure in other Australian avian scavenger species are warranted

    The Grizzly, October 5, 1999

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    Bears Clobber Swarthmore During Family Day Game • Family Day A Success • Admission Rumor Proves False • Sophomore Week Set • 811 Main Street • Forget MTV: Career Services Offering UC Seniors Opportunity to Star in Real World • Opinion: Stereotypes on Campus Affect and Hurt Everyone; Letter to the Editors • Ursinus Football Crushes Swarthmore in Centennial Conference Action, 59-0 • Volleyball wins Allentown Invit. and Family Day Tourney • Monumental Changes in UC Cheerleading • Soccer Splits for 1-1 on the Weekhttps://digitalcommons.ursinus.edu/grizzlynews/1447/thumbnail.jp

    The Grizzly, September 21, 1999

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    Floyd Takes Its Toll on Ursinus • Ground Breaking for Field House • Beware of Main Street Intruder • New Library Computing System • Ursinus Biology Students Comb the Beaches in Woods Hole, MA • The Class of 2003, the First to Share in a Common Intellectual Experience • Beyond Collegeville: Appraising Philadelphia\u27s Nightlife • The Literary Society Explores the Heart • Opinion: Electronic Testing, Service or Scam?; Racial Profiling a Violation of Individuals Rights; Money Talks • Ursinus Football Conquers Franklin & Marshall in OT in Home Opener • Field Hockey gets First Win • UC Golf Takes the Tournaments in the Fallhttps://digitalcommons.ursinus.edu/grizzlynews/1445/thumbnail.jp

    The Grizzly, November 9, 1999

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    Could Ursinus be a Target for Thieves? • Sexual Harassment at Ursinus College • John Street Elected New Mayor of Philadelphia • A Makeover for Ursinus Art on Campus • Egypt Air Flight 990 Disaster • BPS: True Student Living • Grizzly Greeks Rush to Greet New Members • Letter to the Editor: Disrespect of Women on the Ursinus Campus; Ursinus Students Fall Victim to False Sense of Security • Response: Racism • UC Baseball Players Receive Defensive Honors for 1999 Season • Football Stretches Streak to Six, Looks to Dickinson for 7 • Men\u27s Soccer Takes Tough Loss • F&M and Gettysburg in NCAA Tourneyhttps://digitalcommons.ursinus.edu/grizzlynews/1451/thumbnail.jp

    Ecology under lake ice

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    Winter conditions are rapidly changing in temperate ecosystems, particularly for those that experience periods of snow and ice cover. Relatively little is known of winter ecology in these systems, due to a historical research focus on summer ‘growing seasons’. We executed the first global quantitative synthesis on under‐ice lake ecology, including 36 abiotic and biotic variables from 42 research groups and 101 lakes, examining seasonal differences and connections as well as how seasonal differences vary with geophysical factors. Plankton were more abundant under ice than expected; mean winter values were 43.2% of summer values for chlorophyll a, 15.8% of summer phytoplankton biovolume and 25.3% of summer zooplankton density. Dissolved nitrogen concentrations were typically higher during winter, and these differences were exaggerated in smaller lakes. Lake size also influenced winter‐summer patterns for dissolved organic carbon (DOC), with higher winter DOC in smaller lakes. At coarse levels of taxonomic aggregation, phytoplankton and zooplankton community composition showed few systematic differences between seasons, although literature suggests that seasonal differences are frequently lake‐specific, species‐specific, or occur at the level of functional group. Within the subset of lakes that had longer time series, winter influenced the subsequent summer for some nutrient variables and zooplankton biomass

    The Grizzly, October 12, 1999

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    Homecoming \u2799: Any Questions? • One America • Ursinus Grads Leave with a Diploma and a Low Financial Debt • Students Celebrate Berman Museum\u27s 10th Anniversary • Old Men\u27s at Heart of Ursinus • Opinion: Lott\u27s Lack of Responsibility is a Major Threat to the Security of the World; The Destruction of Chechnya, NATO\u27s Bloody Legacy • WVOU Offers Promising Shows That Could Even Provide Thought • Jeffrey Gaines Jams Again at UC • Field Hockey Downed in Fairfield • Bears Senior Cornerback Dealt Leg Injury; Looks to Return • UC Tackles Johns Hopkins 20-18 • Volleyball Splits Home Matcheshttps://digitalcommons.ursinus.edu/grizzlynews/1448/thumbnail.jp

    A unified dataset of colocated sewage pollution, periphyton, and benthic macroinvertebrate community and food web structure from Lake Baikal (Siberia)

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    Sewage released from lakeside development can introduce nutrients and micropollutants that can restructure aquatic ecosystems. Lake Baikal, the world’s most ancient, biodiverse, and voluminous freshwater lake, has been experiencing localized sewage pollution from lakeside settlements. Nearby increasing filamentous algal abundance suggests benthic communities are responding to localized pollution. We surveyed 40-km of Lake Baikal’s southwestern shoreline from 19 to 23 August 2015 for sewage indicators, including pharmaceuticals, personal care products, and microplastics, with colocated periphyton, macroinvertebrate, stable isotope, and fatty acid samplings. The data are structured in a tidy format (a tabular arrangement familiar to limnologists) to encourage reuse. Unique identifiers corresponding to sampling locations are retained throughout all data files to facilitate interoperability among the dataset’s 150+ variables. For Lake Baikal studies, these data can support continued monitoring and research efforts. For global studies of lakes, these data can help characterize sewage prevalence and ecological consequences of anthropogenic disturbance across spatial scales
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