Patrick Coquillard

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In the Chaîne des Puys, a mid-elevation volcanic mountain of the French Massif Central, Scots pine proves to be an 'invasive' species colonizing abandoned lawns or heathlands, and forms in a few years monospecific natural forests. Most of the abandonment occurred 30 to 40 years ago and this process has now stopped. Thus, we lack data on the very first phase(More)
STUDY QUESTION Does a relationship exist between insulin-like peptide 3 (INSL3) and selected environmental endocrine disruptors (EEDs) in human cord blood (cb)? SUMMARY ANSWER In the whole population (cryptorchid and control boys) cbINSL3 correlated negatively with cb free bisphenol A (BPA) providing indirect evidence for an impact of EEDs on fetal Leydig(More)
Root-knot nematodes (RKNs) are obligate endoparasites that maintain a biotrophic relationship with their hosts over a period of several weeks and induce the differentiation of root cells into specialized feeding cells. Nematode effectors synthesized in the oesophageal glands and injected into the plant tissue through the syringe-like stylet certainly play a(More)
The purpose of the study is to evaluate the propagation of the green alga of tropical origin Caulerpa taxifolia (Vahl) C. Agardh in the northwestern Mediterranean sea— introduced in 1984 — by means of an algorithmic computer model. In order to take into account spatial interactions and anthropic dispersion or activities such as eradication and introduction(More)
Currently, the widely used notion of activity is increasingly present in computer science. However, because this notion is used in specic contexts, it becomes vague. Here, the notion of activity is scrutinized in various contexts and, accordingly, put in perspective. It is discussed through four scientic disciplines: computer science, biology, economics,(More)
Several optimisation models, like the marginal value theorem (MVT), have been proposed to predict the optimal time foraging animals should remain on patches of resources. These models do not clearly indicate, however, how animals can follow the corresponding predictions. Hence, several proximate patch-leaving decision rules have been proposed. Most if not(More)