MacMunn (1886) extracted a porphyrin from the integument of the starfish Asterias rubens-then known as Uraster rubens-and he considered that this and similar pigments which he had obtained from the slug Arion empiricorum and the coelenterates Flabellum variabile and Fungia symmetrica were identical with the haematoporphyrin of Hoppe-Seyler (1871), which was then the only porphyrin known. Dhere ...

Daily flight activity patterns of forest insects are influenced by temporal and meteorological conditions. Temperature and time of day are frequently cited as key drivers of activity; however, complex interactions between multiple contributing factors have also been proposed. Here, we report individual Bayesian network models to assess the probability of flight activity of three exotic insects,...

Many species exhibit behavioral tendencies that are stable over time and across contexts. Robust variation in sociability, or the propensity to approach others, is widespread across the vertebrates. Nonetheless, the influence of sociability on reproductive performance is largely unknown. In this study, we explore the relationship between sociability and reproductive behavior in flocks of Brown-...

O presente artigo tem como objetivo analisar instrumentos, técnicas e ferramentas da ação pública no Brasil com foco na atuação assistência técnica extensão rural governamental não-governamental, de 2010 a 2020. trabalho analisou os mecanismos funcionamento pública, evidenciando-os partir das relações que foram capazes organizar, implicações durante implementação do Plano Sem Miséria Rural (BSM...

In this paper, we present a methodology for the grassroots design and/or retrofit of water utilization systems using mathematical optimization to maximize net present value (NPV) and/or return of investment (ROI) insteadofminimizing freshwater consumption. The examples show that the solutionswhere savings and/or profit are maximized can be different from those where freshwater is minimized. The...

The ability to engage others in close proximity may be an essential component of social life and shapes the development of social skills. Variation in the willingness to initiate and sustain close interaction with conspecifics is known as sociability. The Brown-headed Cowbird (Molothrus ater) uses an affiliative display called the head-down to bring individuals into close proximity. During fall...

Recensione del progetto Beyond the Borders ideato dalla compagnia Instabili Vaganti, in collaborazione con L’arboreto – Teatro Dimora, La Mama Umbria e ATER Fondazione diversi partner esteri.

In this article we report that imitation and improvisation of tutor songs by eastern male cowbirds (Molothrus ater ater) differs when they are housed with conspecific females as opposed to nonconspecifics. When males, tutored with 12 different song types, were individually housed with females, they developed repertoires composed primarily of improvised and original song types, whereas the reper...