{ "147509-21901156": { "datetime_modified":"20260407T155217", "datetime_start":"20260414T120000", "datetime_end":"20260414T130000", "has_end_time":1, "date_start":"2026-04-14", "date_end":"2026-04-14", "time_start":"12:00:00", "time_end":"13:00:00", "time_zone":"America\/Detroit", "event_title":"EEB Tuesday Seminar Series - Experimental evolution of virulence in bacteriophages", "occurrence_title":"", "combined_title":"EEB Tuesday Seminar Series - Experimental evolution of virulence in bacteriophages: Manasven Raina, PhD student, Zaman Lab", "event_subtitle":"Manasven Raina, PhD student, Zaman Lab", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Description: Virulence is the measure of harm inflicted on a host by a parasite. It is a central component of parasite fitness and forms one part of a widely studied trade-off in evolutionary biology; the virulence-transmission tradeoff. The evolution of virulence has been studied extensively over the last 4 decades but any changes in virulence are largely investigated either in theory or simple empirical experiments that focus on one-to-one host-parasite relationships. In chapter 1 of my dissertation work, I will use phage-bacteria model systems to empirically investigate how parasite virulence evolves in assemblages with multiple hosts and parasites. In addition to being tractable models for host-parasite coevolution, bacteria-phage communities can be used as a kind of living epidemiological model. In chapter 2, I will use phage pathogens with starkly different life cycles (chronic and temperate) to conduct experimental tests of evolutionary-epidemiological theory and question if pathogen virulence in \u201ctwindemic\u201d scenarios adapts to the predicted epidemiological optima. Finally, when multiple infections are common, pathogens exhibit unique life-cycle strategies that may prioritize virulence or prudence. Recent discoveries of phage signaling systems raise questions about how switching between virulent and prudent life cycles occurs molecularly, and the role phage-to-phage communication plays. In the final chapter, I will investigate phage communication\u2019s role in modulating virulence.", "occurrence_notes":null, "guid":"147509-21901156@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/147509", "building_id":"1005169", "building_name":"Biological Sciences Building", "campus_maps_id":"631", "room":"1010", "location_name":"Biological Sciences Building", "has_livestream":0, "cost":"", "tags":["evolutionary biology","environmental","Environment","eeb","Ecology And Evolutionary Biology","Ecology & Biology","developmental biology","department of ecology and evolutionary biology","Bsbsigns","evolution"], "website":"", "sponsors":[ { "group_name":"Ecology and Evolutionary Biology", "group_id":"1190", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/04\/event_147509_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/04\/event_147509_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21901156 } , "147536-21901211": { "datetime_modified":"20260408T130350", "datetime_start":"20260414T150000", "datetime_end":"20260414T160000", "has_end_time":1, "date_start":"2026-04-14", "date_end":"2026-04-14", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"EEB Prelim Seminar Series - Evolution of gene expression noise", "occurrence_title":"", "combined_title":"EEB Prelim Seminar Series - Evolution of gene expression noise: Zhizhou Jia, EEB PhD student, Zhang lab", "event_subtitle":"Zhizhou Jia, EEB PhD student, Zhang lab", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Description: Gene expression noise, the variation in gene expression levels among isogenic cells in a shared environment, has been characterized over the past two decades. However, the evolutionary forces shaping expression noise and their consequences remain to be explored. By leveraging the technical ease of single-cell RNA sequencing and the fast genetic manipulation of the Saccharomyces yeasts, we can systematically investigate the evolution of expression noise. In this seminar, I will present my proposed research on (i) elucidating the regulatory mechanisms underlying the evolution of gene expression noise, (ii) identifying and characterizing gene expression stabilizers, and (iii) testing for genome-wide natural selection acting on gene expression noise.", "occurrence_notes":null, "guid":"147536-21901211@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/147536", "building_id":"1005169", "building_name":"Biological Sciences Building", "campus_maps_id":"631", "room":"1010", "location_name":"Biological Sciences Building", "has_livestream":0, "cost":"", "tags":["Graduate Students","biological science","Bsbsigns","department of ecology and evolutionary biology","developmental biology","ecology","Ecology & Biology","Ecology And Evolutionary Biology","eeb"], "website":"", "sponsors":[ { "group_name":"Ecology and Evolutionary Biology", "group_id":"1190", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/04\/event_147536_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/04\/event_147536_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21901211 } , "137390-21880196": { "datetime_modified":"20260129T124236", "datetime_start":"20260416T160000", "datetime_end":"20260416T170000", "has_end_time":1, "date_start":"2026-04-16", "date_end":"2026-04-16", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"EEB Thursday Seminar Series - Forest responses to disturbances associated with climate change", "occurrence_title":"", "combined_title":"EEB Thursday Seminar Series - Forest responses to disturbances associated with climate change: Chris Smith-Martin, University of Minnesota", "event_subtitle":"Chris Smith-Martin, University of Minnesota", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Seminar Summary - Disturbances such as drought and wind are increasing in frequency and severity as the climate changes, impacting forests across the globe. In my seminar, I will discuss the implications of climate change for forest disturbances, with particular emphasis on drought and hurricanes in tropical forests. Lianas, or woody vines, are increasing in abundance and size across the Neotropics, likely driven by greater seasonality resulting from shifts in rainfall patterns. Tropical trees exhibit substantial interspecific and intraspecific variation in drought resistance, which may favor some species over others during drought events and ultimately change forest composition. The compound effects of hurricanes and drought, along with changes in these disturbance regimes, are altering forest composition and could lead to an overall decline in forest carbon storage. I will present her research on these topics, drawing on case studies from Costa Rica, Panama, and Puerto Rico, and highlighting drought impacts at the functional group level (lianas versus trees), variation in drought resistance among tropical trees, and the compound effects of hurricanes followed by drought on tropical forests using a large-scale throughfall exclusion experiment.", "occurrence_notes":null, "guid":"137390-21880196@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/137390", "building_id":"1005169", "building_name":"Biological Sciences Building", "campus_maps_id":"631", "room":"1060", "location_name":"Biological Sciences Building", "has_livestream":0, "cost":"", "tags":["Workshop","seminar","evolutionary biology","evolution","Environment","eeb","Ecosystems","Ecology And Evolutionary Biology","Ecology & Biology","Ecology","department of ecology and evolutionary biology"], "website":"https:\/\/www.chrismsmithmartin.com\/", "sponsors":[ { "group_name":"Ecology and Evolutionary Biology", "group_id":"1190", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/01\/event_137390_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/01\/event_137390_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/01\/event_137390_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/01\/event_137390_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/01\/event_137390_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/01\/event_137390_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/01\/event_137390_original-1.png" }, "occurrence_count":1, "first_occurrence":21880196 } }