Vincent Bretagnolle

TL;DR: Contrary to expectations and whatever the population, relatively more offspring of the smaller sex were produced during peak years of the vole cycle but also during poor years, thus providing the first evidence for a nonlinear influence of environmental quality (prey abundance) on sex ratio.

TL;DR: In this article, an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

TL;DR: Overall, the first syllables and silences, and some fre- quency parameters were highly variable between lo- calities, and in males, micro- and macroscale variations were equally significant, although more parameters were involved at a micro level.

TL;DR: The aim of this study was to determine whether cornflower, Centaurea cyanus, an arable land specialist segetal species that is easily identified in the countryside, is an appropriate indicator of weed species diversity in the Poitou-Charentes region of western France.

TL;DR: Assessment of the importance of crop competition and two main conventional farming practices (N fertilizer and weed control) on weed species richness, abundance, and biomass finds that crop competition reduced weed biomass production by almost 65%, as a result of the crop's competitive advantage from its greater ability to take up N, while the effect on Weed species richness was less important.