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UID:3112r1ovvl85rt274ql66ovj7f@google.com
CATEGORIES:Ecology & Entomology
CREATED:20251127T135141
SUMMARY:One Mother For Two Species: The Complex Lifecycle of Harvester Ants
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:<br><br>Learn how how the complex lifestyle of social insects leads to comp
 lex reproductive models in the Brad Ashby Memorial Lecture.<br><br><p>Eusoc
 iality is a complex reproductive strategy where the sterile worker castes h
 elp their sexual relatives reproduce. In this presentation, we will explore
  how extreme caste differentiation can trigger genetic conflicts within a c
 olony and drive the evolution of complex reproductive modes. In particular,
  we will focus on xenoparity, a remarkable case of cross-species cloning in
  <em><em>Messor</em></em> harvester ants, where queens must produce individ
 uals of different species as part of their lifecycle.</p><p>Jonathan Romigu
 ier's research focuses on the links between species ecology and molecular e
 volution. In particular, he studies genome evolution in species with a euso
 cial lifestyle or atypical reproductive systems. His primary model species 
 is the barbarian harvester ant <em><em>Messor barbarus</em></em>, which exh
 ibits an unusual reproductive system in which royalty is genetically determ
 ined. This system, known as social hybridogenesis, involves two queen genet
 ic lineages that can each produce only queens and males independently, whil
 e hybridization between the lineages is required to produce workers. Jonath
 an uses approaches in phylogeny, population genetics, and experimental biol
 ogy to investigate the origin of this system, as well as to address broader
  questions in evolutionary biology.</p><p>Free but booking essential. Book 
 via Eventbrite: <a href="https://www.eventbrite.co.uk/e/one-mother-for-two-
 species-the-complex-lifecycle-of-harvester-ants-tickets-1970355572558">http
 s://www.eventbrite.co.uk/e/one-mother-for-two-species-the-complex-lifecycle
 -of-harvester-ants-tickets-1970355572558</a></p><h3>Brad Ashby Memorial Lec
 ture</h3><p>This annual lecture is delivered by the <a href="https://www.be
 nhs.org.uk/" target="_blank"><u><strong><strong>British Entomological &amp;
  Natural History Society</strong></strong></u></a> and <a href="https://www
 .lnhs.org.uk/" target="_blank"><u><strong><strong>London Natural History So
 ciety</strong></strong></u></a> as a joint venture in memory of Charles Bra
 dwin Ashby (1920 - 1994). Brad was a prominent member of both organistions 
 and in 1985 he proposed the joint meetings which have successfully continue
 d to this day, and since 2020 have been in a virtual format.</p><p>This vir
 tual event is being supported by the Biological Recording Company.</p>
DTSTAMP:20260430T090653Z
DTSTART;TZID=Europe/London:20260129T190000
DTEND;TZID=Europe/London:20260129T203000
SEQUENCE:0
TRANSP:OPAQUE
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