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Downstream Economic Implications of Predation in the South African Red Meat Industry
Globally, predation is an important and ongoing problem facing the livestock sector. This study estimated the downstream economic impact of predation in the South African red meat industry using a recent South African Social Accounting Matrix (SAM) and a
Hermias N. van Niekerk+2 more
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The Predation Strategy of Myxococcus xanthus
Myxobacteria are ubiquitous in soil environments. They display a complex life cycle: vegetatively growing cells coordinate their motility to form multicellular swarms, which upon starvation aggregate into large fruiting bodies where cells differentiate ...
Susanne Thiery, Christine Kaimer
semanticscholar +1 more source
Predation and accumulation [PDF]
This article incorporates the economic theory of predation into the theory of economic growth. The analytical framework is a general-equilibrium model of the interaction between two dynasties: a potential predator and its prey. We find that the rate of accumulation of capital and the security of property are positively related only for generations of ...
Herschel I. Grossman, Minseong Kim
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Coping with shifting nest predation refuges by European reed Warblers Acrocephalus scirpaceus. [PDF]
Predation, the most important source of nest mortality in altricial birds, has been a subject of numerous studies during past decades. However, the temporal dynamics between changing predation pressures and parental responses remain poorly understood. We
Lucyna Halupka+3 more
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Predators avoiding predation [PDF]
The notion of stealthy predation often invokes images of a predator hiding and waiting to ambush its unsuspecting prey. In this issue of PNAS, Manicom et al. (1) offer an alternative reason why predators hide that involves an important tradeoff between capturing prey and seeking refuge to avoid their own demise from other predator species.
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High trees increase sunflower seed predation by birds in an agricultural landscape of Israel
Natural habitats in agricultural landscapes promote agro-ecosystem services but little is known about negative effects (dis-services) derived by natural habitats such as crop seed predation.
Jessica eSchäckermann+6 more
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Spatiotemporal analysis of predation by carabid beetles (Carabidae) on nematode infected and uninfected slugs in the field. [PDF]
The dynamics of predation on parasites within prey has received relatively little attention despite the profound effects this is likely to have on both prey and parasite numbers and hence on biological control programmes where parasites are employed. The
Bjørn Arild Hatteland+5 more
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Accessible ecophysiological tools for seabird conservation
Abstract Seabirds are the most endangered avian taxa on Earth, with over a third of species globally threatened. To help slow their decline, conservation physiology seeks to determine how seabird responses to climatic and anthropogenic threats influence demographic processes, but it is not widely utilized in monitoring.
Edin A. Whitehead, Brendon J. Dunphy
wiley +1 more source
Diel timing of nest predation changes across breeding season in a subtropical shorebird
Predation is the most common cause of nest failure in birds. While nest predation is relatively well studied in general, our knowledge is unevenly distributed across the globe and taxa, with, for example, limited information on shorebirds breeding in ...
Martin Sládeček+10 more
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Higher predation risk for insect prey at low latitudes and elevations
Risky in the tropics It is well known that diversity increases toward the tropics. Whether this increase translates into differences in interaction rates among species, however, remains unclear. To simplify the problem, Roslin et al. tested for predation
T. Roslin+39 more
semanticscholar +1 more source