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Capitalizing on opportunistic data for monitoring relative abundances of species
A general statistical framework to combine such "opportunistic data" with data collected using schemes characterized by a known sampling effort makes it possible to estimate the relative abundance of several species in different sites.
Quantifying the Mutational Meltdown in Diploid Populations
This work presents a model-based framework to study and quantify the mutational meltdown in a finite diploid population that is evolving continuously in time and subject to resource competition, and shows that the meltdown appears less severe than predicted by earlier theoretical work.
The Quetzal Coalescence template library: A C++ programmers resource for integrating distributional, demographic and coalescent models
Quetzal is a C++ library composed of re‐usable components, which is sufficiently general to efficiently implement a wide range of spatially explicit coalescence‐based environmental models of population genetics and to embed the simulation in an Approximate Bayesian Computation framework.
Slow-fast stochastic diffusion dynamics and quasi-stationary distributions for diploid populations
- Camille Coron
- 13 September 2013
We are interested in the long-time behavior of a diploid population with sexual reproduction, characterized by its genotype composition at one bi-allelic locus. The population is modeled by a…
Impact of demography on extinction/fixation events
It is proved first that alleles extinctions occur successively and second that depending on population size dynamics near extinction, fixation can occur either before extinction almost surely, or not.
A stochastic model for speciation by mating preferences
- Camille Coron, Manon Costa, H. Leman, C. Smadi
- Computer ScienceJournal of mathematical biology
- 3 March 2016
A stochastic model of population where individuals, with type a or A, are equivalent from ecological, demographical and spatial points of view, and differ only by their mating preference, showing that mating preferences by themselves, even if they are very small, are enough to entail reproductive isolation between patches.
Bayesian estimation of species relative abundances and habitat preferences using opportunistic data
- Camille Coron, C. Calenge, C. Giraud, R. Julliard
- Environmental ScienceEnvironmental and Ecological Statistics
- 26 June 2017
We develop a new statistical procedure to monitor relative species abundances and their respective preferences for different habitat types, using opportunistic data. Following Giraud et al.…
Slow-fast stochastic diffusion dynamics and quasi-stationarity for diploid populations with varying size
- Camille Coron
- MathematicsJournal of mathematical biology
It is proved the convergence toward 0 of a fast variable giving the deviation of the population from quasi Hardy–Weinberg equilibrium, while the sequence of slow variables giving the respective numbers of occurrences of each allele converges toward a 2-dimensional diffusion process that reaches (0,0) almost surely in finite time.
Stochastic Modeling of Density-Dependent Diploid Populations and the Extinction Vortex
- Camille Coron
- MathematicsAdvances in Applied Probability
- 20 July 2012
We model and study the genetic evolution and conservation of a population of diploid hermaphroditic organisms, evolving continuously in time and subject to resource competition. In the absence of…
Effects of demographic stochasticity and life-history strategies on times and probabilities to fixation
The results indicate that models with fixed population size that stem from the Wright–Fisher diffusion cannot fully capture the consequences of demographic stochasticity on allele fixation in long-lived species with low reproductive rates.