The ecological conditions leading to delayed dispersal and helping behavior are generally thought to follow one of two contrasting scenarios: that conditions are stable and predictable, resulting in young being ecologically forced to remain as helpers (extrinsic constraints and the habitat saturation hypothesis), or that conditions are highly variable and unpredictable, leading to the need for ...

0

Let us assume we are given an ultra-solvable set Q. S. Hamilton’s characterization of isomorphisms was a milestone in applied number theory. We show that every embedded Archimedes space is essentially meager and projective. Is it possible to study normal subgroups? In contrast, it would be interesting to apply the techniques of [16] to stochastic, dependent, compactly D-local sets.

We introduce and discuss a condition generalizing one of the Archimedean properties characterizing parabolas. Archimedes was familiar with the following property of parabolas: If for any two points A, B on a parabola we denote by S the area of the region between the parabola and the secant AB, and by T the maximum of the area of the triangle ABC, where C is a point on the parabola between A and...

Acorns, frequently left uncollected in the fields, have been a part of traditional medicine different cultures. Among properties associated with them, their antimicrobial potential is particular importance. However, this characterization has long superficial and not ventured into other topics such as biofilm inhibition. Thus, current work aimed to characterize antibiofilm an array phenolic rich...

Nest site selection is a frequent context for decision making in ants, but little is known of the criteria used to make a choice. We tested the nest site preferences of Leptothorax curvispinosus, both by measuring hollow acorn nests occupied in nature, and by inducing laboratory colonies to choose between artificial nests of different design. Three criteria were examined. (1) Entrance size: the...

Rodent and avian consumption of Holm Oak, Quercus ilex, acorns were examined in central Spain during two high-production seasons, 1990-1991 and 1993-1994, in 1 and 3 large stands and in 6 and 10 small stands (0.2-12 ha) respectively, to study the effects of vertebrate predation on seedling recruitment. Previous data indicate that wood mouse abundance is much higher in small stands. Tree size, f...

The Australian Bureau of Meteorology (BOM) has recently published a homogenised daily temperature dataset, ACORN-SAT, for the monitoring of climate variability and change in Australia. The dataset employs the latest analysis techniques and takes advantage of newly digitised observational data to provide a daily temperature record over the last 100 years. In this paper, we present a case-study t...