{ "144613-21895569": { "datetime_modified":"20260127T104706", "datetime_start":"20260218T130000", "datetime_end":"20260218T140000", "has_end_time":1, "date_start":"2026-02-18", "date_end":"2026-02-18", "time_start":"13:00:00", "time_end":"14:00:00", "time_zone":"America\/Detroit", "event_title":"Great Lakes Seminar Series: Charlyn Partridge", "occurrence_title":"", "combined_title":"Great Lakes Seminar Series: Charlyn Partridge: Using eDNA and population genomics to monitor the invasion of hemlock woolly adelgid throughout eastern North America.", "event_subtitle":"Using eDNA and population genomics to monitor the invasion of hemlock woolly adelgid throughout eastern North America.", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"About the presentation: Hemlock woolly adelgid (Adelges tsugae, HWA) is a small invasive insect threatening hemlock forests throughout the eastern United States and Canada. Eastern hemlocks are a foundation tree species found in sensitive coastal dunes and riparian zones. Once infested, HWA feeds on the nutrients of hemlocks, often resulting in hemlock mortality within 4 \u2013 10 years. This can lead to landscape-level changes in biodiversity as infestations progress. Management efforts in Michigan are underway to control this invasive pest with a key focus on early detection. Current monitoring methods involve visual assessment of hemlocks for the presence of HWA ovisacs. However, this is a demanding task considering there are an estimated 170 million hemlock trees in Michigan. Our lab is using a combination of airborne environmental DNA (eDNA) methods and population genomics analysis to help detect new infestations and gain insight into the historical spread of HWA throughout eastern North America. The information we gain from our work, will hopefully contribute to faster detections and more accurate range expansion models as HWA continues to spread throughout the Great Lakes region.\n\nAbout the speaker: Dr. Charlyn Partridge is an Associate Professor at Annis Water Resources Institute \u2013 Grand Valley State University. Her research uses genetic and genomic tools to aid in conservation and management efforts. Her current projects involve using environmental DNA approaches for targeted species detection and understanding how invasive species rapidly adapt to new environments.\n\nAs of July 2025 the GLERL facility can no longer accept visitors for the Great Lakes Seminar Series due to staffing shortages. Please attend virtually using the link above.", "occurrence_notes":null, "guid":"144613-21895569@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/144613", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":1, "livestream_type":"other", "livetream_require_login":0, "livestream_id":"", "livestream_link":"https:\/\/attendee.gotowebinar.com\/register\/2630984442207750741", "cost":"", "tags":["seminar","Biology","Ecology","Environment","Free","Great Lakes","Lecture","Science"], "website":"https:\/\/attendee.gotowebinar.com\/register\/2630984442207750741", "sponsors":[ { "group_name":"Cooperative Institute for Great Lakes Research (CIGLR)", "group_id":"3432", "website":"http:\/\/ciglr.seas.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/01\/event_144613_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/01\/event_144613_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21895569 } , "143132-21892189": { "datetime_modified":"20260217T111612", "datetime_start":"20260218T130000", "datetime_end":"20260218T140000", "has_end_time":1, "date_start":"2026-02-18", "date_end":"2026-02-18", "time_start":"13:00:00", "time_end":"14:00:00", "time_zone":"America\/Detroit", "event_title":"HET Brown Bag Seminar | Bulk Locality from Infrared Entanglement", "occurrence_title":"", "combined_title":"HET Brown Bag Seminar | Bulk Locality from Infrared Entanglement: Gautam Satishchandran (Princeton)", "event_subtitle":"Gautam Satishchandran (Princeton)", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"For quantum field theories coupled to any massless fields, one generally encounters \u201cIR divergences\u201d which arise due to the fact that the asymptotic description of the state contains an infinite number of soft radiative quanta. These quanta have recently gained interest due to their connections to unitarity, asymptotic symmetries and the memory effect. However, for the description of any bulk experiment, these quanta are generally viewed as a nuisance with little physical relevance for the predictions of any bulk, finite time observable.\n\nIn this talk, I will explain that this is not the case. In fact, the situation is quite the opposite: all local physical observables and phenomena depend on the entanglement and absorption of soft radiation. I will explain (1) how this phenomenon arises and (2) why it was missed in the literature and (3) why this result agrees with the predictions of collider experiments. I will primarily focus on the case of QED with and will comment on the analogous issues in QED with massless electrons, Yang-Mills theories and Quantum Gravity.", "occurrence_notes":null, "guid":"143132-21892189@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/143132", "building_id":"1000208", "building_name":"Randall Laboratory", "campus_maps_id":"133", "room":"3481", "location_name":"Randall Laboratory", "has_livestream":0, "cost":"", "tags":["Talk","Science","Physics","Lecture","Brown Bag Seminar","brown bag"], "website":"", "sponsors":[ { "group_name":"Leinweber Institute for Theoretical Physics", "group_id":"4286", "website":"" }, { "group_name":"Department of Physics", "group_id":"1965", "website":"" }, { "group_name":"HET Brown Bag Series", "group_id":"3805", "website":"" }, { "group_name":"Leinweber Institute for Theoretical Physics Seminars", "group_id":"4311", "website":"" }, { "group_name":"Leinweber Institute for Theoretical Physics Brown Bag Seminars", "group_id":"4865", "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":21892189 } }