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SUMMARY:Adélie Erard (Université Paris Cité)
DTSTART:20250319T121500Z
DTEND:20250319T130000Z
DTSTAMP:20260422T155052Z
UID:gbgstats/86
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/gbgstats/86/
 ">A method for estimating population growth at a local scale. An applicati
 on using French breeding bird surveys data.</a>\nby Adélie Erard (Univers
 ité Paris Cité) as part of Gothenburg statistics seminar\n\nLecture held
  in MVL14.\n\nAbstract\nEstimating population growth at a local scale is c
 rucial for understanding ecological dynamics and informing conservation ef
 forts. In this work\, we propose a novel methodology that uses marked poin
 t processes to model bird populations as a spatial process of unknown inte
 nsity influenced by environmental factors. The population is represented a
 s a point process $\\mathcal{P}$\, while observations are obtained through
  a thinning mechanism using a homogeneous Poisson birth-and-death process 
 $\\mathcal{O}_t$. This approach accounts for both spatial dependence\, suc
 h as Cox or Gibbs processes\, and temporal variations by focusing on inter
 sections of observed areas over consecutive time points.\n\n\nBy applying 
 stabilization theory\, we demonstrate convergence properties and ensure ro
 bust local estimations of population variation. The ability to estimate po
 pulation dynamics at fine spatial scales distinguishes this approach\, mak
 ing it particularly suited to ecological applications.\n\nAn implementatio
 n using French breeding bird survey data highlights its potential to captu
 re localized trends and advance biodiversity monitoring.\n
LOCATION:https://researchseminars.org/talk/gbgstats/86/
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