Growth hormone (GH) promotes growth and endochondral ossification, but it is also important in the response to fasting due to its effects of increasing gluconeogenesis and lipolysis. In this study eleven raccoon dogs and blue foxes were followed for six months and their body mass and GH levels were measured. In November half of the animals of both species were put to a three-week fast. There we...

ewline"> Castor (Ricinus communis L.) is an oilseed species, which in southern Italy iscultivated as annual during the spring-summer period under irrigation, but in mosttemperate areas such as those of eastern coast of Sicily, it could be grown as semiperennial with no irrigation, by the adoption of autumnal sowings. A fieldexperiment was conducted in southeastern Sicily with the aim of assessi...

Phenology of biological systems is the expression of selective pressures forcing organisms to match their energy requirements to seasonal variations in resource availability. For longdistance migrant organisms, migration strategy is shaped by the availability and quality of stopovers during a precise time period. Ongoing climate changes alter the usual spatial and temporal distribution of resou...

Autumnal leaf anthocyanin expression is enhanced following exposure to a variety of environmental stresses and may represent an adaptive benefit of protecting leaves from those stresses, thereby allowing for prolonged sugar and nutrient resorption. Past work has shown that experimentally induced sugar accumulations following branch girdling triggers anthocyanin biosynthesis. We hypothesized tha...

Sur les marchés internationaux, prix des céréales (blé, maïs) et huiles végétales (colza, tournesol, soja, palme) ont augmenté à partir de la mi-2020. Les biocarburants jouent un rôle majeur dans cette hausse guerre en Ukraine, qui a débuté février 2022, l’a exacerbée. lient effet le ces denrées celui du pétrole : lorsque augmente, l’industrie accroît sa demande maïs d’huiles végétales. Limiter...

A consideration of the Edinburgh notification statistics tends to show that the season of greatest prevalence of typhoid fever is during the three autumnal months?September, October, and November. This coincides generally with the statistics of other places in the United Kingdom, and also with Buchan and Mitchell's curve, based on the mortality returns of London. In fact, typhoid fever remains ...

W.D. (Bill) Hamilton proposed that coevolution between plants and herbivorous insects explains the bright autumnal colouration of leaves. Accordingly, plants invest in bright signals to reduce their herbivore load, whereas insects use these bright signals to identify less-defended hosts more efficiently. Archetti and Brown have recently revisited this theory by explaining its basic predictions ...

We describe a new autumnal caddisfly species Chaetopteryx bucari sp. n. from 8 localities in the Banovina region of Croatia. We also present molecular, taxonomic and ecological notes (emergence, sex ratio and seasonal dynamics) on the new species and discuss the distribution of Chaetopteryx species in general and the Chaetopteryx rugulosa group in particular. Based on Bayesian phylogenetic anal...