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VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20240329T115711Z
UID:https://www.bi.mpg.de/events/15013/2855
DTSTART:20181129T120000Z
DTEND:20181129T130000Z
CLASS:PUBLIC
CREATED:20180810T104713Z
DESCRIPTION:Even before it is born the conditions an animal experiences can
have profound long-term effects on its health and wellbeing. In birds\, m
others deposit a range of nutritional and hormonal factors into the egg th
at can alter embryonic development. If the mother experiences stress durin
g egg laying a higher level of stress hormones are deposited into the egg\
, which can alter the development of the neuroendocrine system then contro
ls the ability to respond to stress. In later life adults exposed to pre-n
atal stress have been shown to exhibit altered stress responses\, fear-rel
ated behaviours and there is very good evidence that they are more likely
to develop negative health issues. Work carried out by myself and colleagu
es suggests that in ovo conditions can program later behaviours via neuroe
ndocrine systems and that these conditions may act as a signal to the offs
pring to alter development in such a way as to maximise survival in the po
st-natal environment\, but that that there will also be costs associated w
ith this strategy. However\, oviparous species are often also exposed to m
any external factors as well\, without the buffer of the maternal body as
in mammals. The fact that birds use acoustic calls to communicate in many
different contexts\, such as calling to chicks or alarm calls when stresse
d\, suggests that these calls can provide salient cues as to the quality o
f the environment. However\, whether they provide such cues to embryos is
unknown. We still have much to learn about the importance of different typ
es of acoustic stimuli in shaping later phenotypes. Here I will detail som
e of the new experiments going on in my lab to investigate the adaptive si
gnificance of pre-natal acoustic stimuli. I will suggest that we should co
nsider both in ovo and external stimuli as programming factors and work is
now needed to integrate the two stimuli types to determine if re-programm
ing of embryonic phenotypes is possible when environmental conditions chan
ge over the incubation period.\nVortragende(r): Dr. Karen Spencer
LAST-MODIFIED:20181115T132807Z
LOCATION:Seewiesen\, Raum: Seminar Room House 4\, Tea & Coffee 12:30h
ORGANIZER:Prof. Dr. Michaela Hau
SUMMARY:Talk Karen Spencer\, Seewiesen: Karen Spencer\, University of St
. Andrews: Developmental programming in birds: integrating data on in
ovo and external stimuli
URL:https://www.bi.mpg.de/events/15013/2855
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