For decades, we monitored numbers and weights of the macrozoobenthos in a vast tidal-flat area Dutch Wadden Sea. We used data collected since 1992 to estimate annual secondary production. Data on chlorophyll concentrations primary production were available for nearby tidal inlet, showing rapid increases late 1970s gradual declines 1980s. The benthos responded with doubling biomass around 1980 s...

Abstract We are interested in the property of coming down from infinity continuous-state branching processes with competition a Lévy environment. first study event extinction for such family under Grey’s condition. Moreover, if we add an integrability condition on mechanism then process comes regardless long-time behaviour

Abstract Understanding the drivers behind fluctuations in fish populations remains a key objective fishery science. Our predictive capacity to explain these is still relatively low, due amalgam of interacting bottom-up and top-down factors, which vary across time space among within populations. Gaining mechanistic understanding recruitment requires holistic approach, combining field, experiment...

Models of anxiety disorders posit that information processing biases towards threat may result from an imbalance between top-down attentional control processes and bottom-up attentional processes, such that anxiety could reduce the influence of the former and increase the influence of the latter. However, researchers have recently pointed to limitations of the top-down/bottom-up terminology and...

Complex problem solving is often an integration of perceptual processing and deliberate planning. But what balances these two processes, and how do novices differ from experts? We investigate the interplay between these two in the game of SET. This article investigates how people combine bottom-up visual processes and top-down planning to succeed in this game. Using combinatorial and mixed-effe...