Plants have to cope with constantly changing conditions and need to respond to environmental stresses and seasonal changes in temperature and photoperiod. Alignment of their development with particular seasons requires memory mechanisms and an ability to integrate noisy temperature signals over long time scales. An increasingly well understood example of how seasonal changes influence developme...

Ecological adaptations to seasonal changes are often observed in the phenotypic traits of plants and animals, and these adaptations are usually expressed through the production of different biochemical end products. In this study, ecological adaptations are observed in a biochemical pathway without alteration of the end products. We present an alternative principal pathway to the characteristic...

This paper presents a neural fuzzy network model for seasonal streamflow forecasting. The model is based on a constructive learning method where neurons groups compete when the network receives a new input, so that it learns the fuzzy rules and membership functions essential for modelling a fuzzy system. The model was applied to the problem of seasonal streamflow forecasting using a database of...

Seasonal behavior is important for fitness in temperate environments but it is unclear how progeny gain their initial seasonal entrainment. Plants use temperature signals to measure time of year, and changes to life histories are therefore an important consequence of climate change. Here we show that in Arabidopsis the current and prior temperature experience of the mother plant is used to cont...

The seasonal variations in the chemical composition of Brazilian propolis, collected by two bee subspecies, Africanized Apis mellifera and European Apis mellifera ligustica, have been investigated by GC and GC-MS. The main components of the samples were phenolic compounds, especially cinnamic acid derivatives, the only exception being the autumn sample from Apis mellifera ligustica, where diter...

Mature perennial ryegrass plants in pastures persist through the asexual reproduction of the tiller. Leaves are initiated from the flanks of the tiller stem apex. Generally, two leaves arc growing on a tiller at any one time. New tiller buds may arise from the axils of mature leaves depending on environmental conditions. Flowering results from a physiological change at the stem apex, which then...

Recently, in the Auerswald et al. (2015) comment on "Rainfall erosivity in Europe", 5 criticisms were addressed: i) the neglect of seasonal erosion indices, ii) the neglect of published studies and data, iii) the low temporal resolution of the data, especially of the maximum rain intensity, iv) the use of precipitation data instead of rain data and the subsequent deviation of the R-factor in Ge...

Reproductive success usually declines in the course of the season, which may be a direct effect of breeding time, an effect of quality (individuals with high phenotypic or environmental quality breeding early), or a combination of the two. Being able to distinguish between these possibilities is crucial when trying to understand individual variation in annual routines, for instance when to bree...

As we start a new school year I would like to take this opportunity to welcome back the many students, staff, research associates and faculty associated with the Center for the Integrative Study of Animal Behavior (CISAB). To those of you who are new to CISAB and the Indiana University community, I would like to extend a special welcome to you and I would also like to express my excitement abou...

Abstract Aims Gypsum soils are P-limited atypical that harbour a rich endemic flora. These singular usually found in drylands, where plant activity and soil nutrient availability seasonal. No previous studies have analysed the seasonality of P nutrition its interaction with arbuscular mycorrhiza fungi (AMF) colonisation gypsum plants. Our aim was to evaluate seasonal changes status, AMF rhizosp...