{ "152565-21913921": { "datetime_modified":"20260921T131719", "datetime_start":"20261009T153000", "datetime_end":"20261009T163000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"15:30:00", "time_end":"16:30:00", "time_zone":"America\/Detroit", "event_title":"Smith Lecture: Maya Samuels-Fair", "occurrence_title":"", "combined_title":"Smith Lecture: Maya Samuels-Fair: When is ecological change evidence of selective extinction? Simulating the effect of random extinction on functional diversity in ecosystems with variable rank-abundance distributions", "event_subtitle":"When is ecological change evidence of selective extinction? Simulating the effect of random extinction on functional diversity in ecosystems with variable rank-abundance distributions", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Selective extinction by definition causes some groups to become extinct at higher rates than others and is often assumed to be the cause of functional diversity changes following mass extinctions. However, significant changes in functional diversity can occur even when extinction is nonselective (random). Counterintuitively, lack of functional diversity change can also be evidence of selective extinction. This can occur because (1) the number of taxa in each functional group varies and (2) the abundance of each functional group varies. Consequently, random removal of taxa or individuals disproportionately affects rare functional groups. We simulate random extinction with a range of initial rank abundance distributions, varying the number of taxa in each functional group and the evenness of abundances across taxa. We then measure change in functional diversity before and after random extinction using PERMANOVA. This generates a null distribution of how functional diversity would be expected to change under random extinction for each initial rank abundance distribution. Change in functional diversity outside the null distribution is then positive evidence of nonrandom extinction, nonrandom origination, or nonrandom changes in abundance. \n \nWe apply this approach to examine changes in the bryozoan fauna of Stevns Klint, Denmark following the Cretaceous-Paleogene mass extinction, using a dataset of 4,453 specimens from 13 pre-extinction and 7 post-extinction samples. We find that functional diversity changes significantly across the K\/Pg boundary, but functional change is largely consistent with random extinction, followed by an increase in the abundances of the functional groups with the fewest taxa. Our approach thus allows us to differentiate between selection extinction and other mechanisms of functional diversity change, which can be applied to other extinction events.", "occurrence_notes":null, "guid":"152565-21913921@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152565", "building_id":"1000188", "building_name":"1100 North University Building", "campus_maps_id":"628", "room":"1528", "location_name":"1100 North University Building", "has_livestream":0, "cost":"", "tags":["Earth And Environmental Sciences"], "website":"", "sponsors":[ { "group_name":"Earth and Environmental Sciences", "group_id":"3170", "website":"http:\/\/www.lsa.umich.edu\/earth" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_152565_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_152565_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21913921 } , "149491-21906518": { "datetime_modified":"20261005T202118", "datetime_start":"20261009T154500", "datetime_end":"20261009T170000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"15:45:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Place as Method, Theory, and Responsibility: Rethinking Scientific Inquiry for Complex Social Issues", "occurrence_title":"Data and methods are not magic, Part II", "combined_title":"Place as Method, Theory, and Responsibility: Rethinking Scientific Inquiry for Complex Social Issues: Data and methods are not magic, Part II", "event_subtitle":"", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"The challenge: New data and approaches to study complexity in the social world has often been without a concurrent focus on the foundations of scientific inquiry, including complex thinking, broad causal thinking, attention to epistemic lens, and integrating multiple disciplinary approaches. Further, the academic research model, with its resource-segregated networks, discipline-specific training, and short-term productivity metrics, contributes to a fragmented and potentially misleading understanding of the social world. In the second annual ISR Symposium on Complexity in the Social World, we will use \u2018place\u2019 as the case study to facilitate discussions on rigorous social science in the public interest.Using research on place as the case study, discussion topics will include:Complex thinking about the social worldThe contribution of the humanities the study of the social worldEpistemic lens and research transparencyTheories, frameworks, and the limits of traditional causal inferenceThe draw and danger of cool new dataAddressing the challenges of the academic model of sciencePresentations on the science of place will include:The relational nature of place in population social inequalitiesThe role of history in shaping placeThe racialization of place; the spatialization of racePlace as a neutral and rational driver of social inequalitiesApproaches to testing (causal) ideas around place", "occurrence_notes":null, "guid":"149491-21906518@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149491", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"Room 1430, Institute for Social Research", "has_livestream":0, "cost":"", "tags":["Sessions"], "website":"https:\/\/sessions.studentlife.umich.edu\/p\/track\/17400", "sponsors":[ { "group_name":"Sessions @ Michigan", "group_id":"4791", "website":"https:\/\/sessions.studentlife.umich.edu\/" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":12, "first_occurrence":21906506 } , "152945-21914825": { "datetime_modified":"20261005T122131", "datetime_start":"20261009T160000", "datetime_end":"20261009T200000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"16:00:00", "time_end":"20:00:00", "time_zone":"America\/Detroit", "event_title":"Decarceration Org Fair + Documentary Screening + Panel Discussion", "occurrence_title":"", "combined_title":"Decarceration Org Fair + Documentary Screening + Panel Discussion: RC Social Theory and Practice", "event_subtitle":"RC Social Theory and Practice", "event_type":"Film Screening", "event_type_id":"11", "description":"Join us in the Keene Theater on Friday, Oct 9th for a three-part event! \n\nFree and open to the Public\n\n 4pm: Decarceration Org Fair\n 5pm: Documentary film screening of \"Beyond\"\n 6:30pm: Panel discussion \n\nPanelists\n1. Asia Johnson, Co-Producer\/Co-Director\n2. Michael Kleiman, Co-Producer\/Co-Director\n3. Michael Tineo, Featured in the Film\n4. Tore Price, Decarceration Activist\/Organizer\n5. Victoria Burton-Harris, WashCo Chief Asst Prosecutor\n\n**Moderated by Prof Heather Ann Thompson\n\nOrg Fair Attendees Include: Linkage Community, Michigan Collaborative to End Mass Incarceration, Pure Heart Foundation, Friends of Restorative Justice, Michigan Citizens for Justice, Dispute Resolution Center, Prison Creative Arts Project (PCAP), Nation Outside, Michigan Innocence Project, MI Parole Prep Project, Prison Birth Project at the University of Michigan, Michigan Institute for Progressive Policy, Michigan Undergrad Law Review, Latinx UG Law Association, and others!", "occurrence_notes":null, "guid":"152945-21914825@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152945", "building_id":"1000054", "building_name":"East Quadrangle", "campus_maps_id":"54", "room":"Keene Theater", "location_name":"East Quadrangle", "has_livestream":0, "cost":"", "tags":["All Majors Welcome","Ann Arbor","Art","arts","Community","Community Engagement","Community Organizing","Community Service","Criminal Justice","Faculty","Film","Free","Human Rights","In Person","Social Impact","Social Justice","Social Movement","Social Rights","Social Sciences","Social Theory And Practice","Sociology","Staff","Students","Talk","Theater","theatre","Undergraduate","Undergraduate Students"], "website":"https:\/\/www.beyonddocumentary.com\/", "sponsors":[ { "group_name":"Keene Theater", "group_id":"5106", "website":"https:\/\/lsa.umich.edu\/rc\/reserve-a-room-\/the-keene-theater.html" }, { "group_name":"Residential College [RC]", "group_id":"1029", "website":"https:\/\/www.instagram.com\/umichrc" }, { "group_name":"Department of Afroamerican and African Studies", "group_id":"1144", "website":"http:\/\/www.lsa.umich.edu\/daas\/" }, { "group_name":"Center for Social Solutions", "group_id":"4266", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/10\/event_152945_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/10\/event_152945_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21914825 } , "148551-21904436": { "datetime_modified":"20261005T181537", "datetime_start":"20261009T160000", "datetime_end":"20260603T010000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-06-03", "time_start":"16:00:00", "time_end":"01:00:00", "time_zone":"America\/Detroit", "event_title":"Field Hockey vs Maryland", "occurrence_title":"", "combined_title":"Field Hockey vs Maryland", "event_subtitle":"", "event_type":"Sporting Event", "event_type_id":"20", "description":"Field Hockey vs Maryland", "occurrence_notes":null, "guid":"148551-21904436@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/148551", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Ann Arbor, Mich.", "has_livestream":0, "cost":"See MGoblue.com", "tags":["Athletics","Athletics - Field Hockey"], "website":"https:\/\/mgoblue.com", "sponsors":[ { "group_name":"Michigan Athletics", "group_id":"3406", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21904436 } , "152676-21914364": { "datetime_modified":"20260922T145242", "datetime_start":"20261009T160000", "datetime_end":"20261009T180000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"16:00:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"OLLI Community Silent Reading Groups", "occurrence_title":"", "combined_title":"OLLI Community Silent Reading Groups", "event_subtitle":"", "event_type":"Other", "event_type_id":"22", "description":"Bring a copy of a banned book to read silently with the group.\u00a0\n\n10\/7: Courageous Books (Dexter)\n10\/8: Ann Arbor District Library Pittsfield Branch (Ann Arbor)\n10\/9: Source Booksellers (Detroit)\n10\/10: Schuler's Books (Ann Arbor)\n10\/26: Ypsilanti District Library Whittaker Branch (Ypsilanti)\n\nThis is part of the Banned Book Week series through OLLI.\n\n*The Osher Lifelong Learning Institute (OLLI) at U-M provides educational opportunities for older adults, designed by older adults. Membership is intended for all enthusiastic learners aged 50 and older, regardless of previous education or affiliation with U-M.*", "occurrence_notes":null, "guid":"152676-21914364@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152676", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Source Booksellers (4240 Cass Ave Unit 105, Detroit, MI 48201)", "has_livestream":0, "cost":"", "tags":["Activism","aging","Detroit","Education","Free","Geriatrics","In Person","Inclusion","Library","Lifelong Learning","Social Impact","Social Justice"], "website":"https:\/\/mmcommunityprograms.med.umich.edu\/umich\/course\/course.aspx?catId=72", "sponsors":[ { "group_name":"Osher Lifelong Learning Institute at the University of Michigan (OLLI)", "group_id":"4951", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/09\/event_152676_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_152676_original-1.jpg" }, "occurrence_count":5, "first_occurrence":21914363 } , "150488-21909511": { "datetime_modified":"20261002T100556", "datetime_start":"20261009T160000", "datetime_end":"20261009T170000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Topology seminar: End Floer homology and Exotic R^4's", "occurrence_title":"", "combined_title":"Topology seminar: End Floer homology and Exotic R^4's: Sean Eli (Georgia Tech)", "event_subtitle":"Sean Eli (Georgia Tech)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Abstract: One way to construct an exotic R^4 is to remove a slice disk from the 4-ball, replace it with a Casson handle, and then delete the boundary. In the 90's De Michelis and Freedman asked how the choices in this construction affect the smooth type. Since then, this problem has seen some progress but is still not well understood. Our main result is that if two slice knots have sufficiently different knot Floer homology, then the resulting exotic R^4's made with the simplest Casson handle are distinct. This allows us to distinguish an explicit infinite family of exotic R^4's. Our main tool is Gadgil's end Floer homology, which we compute effectively by analyzing Heegaard Floer cobordism maps. We also discuss new phenomena related to these R^4's, and relevance to the open problem of finding infinitely many smooth structures on all noncompact 4 manifolds. This is joint work with Jen Hom, Tye Lidman, and Shunyu Wan.", "occurrence_notes":null, "guid":"150488-21909511@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/150488", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3866", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Topology Seminar - Department of Mathematics", "group_id":"4910", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21909511 } , "151419-21911571": { "datetime_modified":"20260902T161740", "datetime_start":"20261009T163000", "datetime_end":"20261009T180000", "has_end_time":1, "date_start":"2026-10-09", "date_end":"2026-10-09", "time_start":"16:30:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"2026 Faculty Mixer", "occurrence_title":"", "combined_title":"2026 Faculty Mixer", "event_subtitle":"", "event_type":"Reception \/ Open House", "event_type_id":"17", "description":"Socialize with your faculty colleagues and visit the University\u2019s famous Kelsey Museum of Archaeology during our annual Faculty Mixer event. 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