Competition between Unit-restricted Fungi: A Metapopulation Model

Competition, virulence, host body mass and the diversification of macro-parasites

“…Nevertheless, there is a rich literature demonstrating that dispersal of individuals among distinct resource units can reduce the strength of deleterious interactions and allow for persistence of competitors through competition -colonization trade-offs (see [102][103][104] for reviews). This has been demonstrated for a very broad range of organisms, including parasite species [105][106][107] and non-parasite species of various taxa [108][109][110][111][112]. Macro-parasites facing a competitive challenge could thus adapt to exploit specific resources without any change in the pool of host individuals they infect, as demonstrated in this paper, or they could evolve to infect a subset of host individuals that are less colonized by competitors.…”

The Basic Reproduction Number for Chagas Disease Transmission Using Cellular Automata

“…This result deserves to be investigated further as it could be an important determinant of the typical source-sink dynamics that underlie the transmission of many parasites [19]. Finally, spatial heterogeneity and random temporal variations are two central tenets of the ecology and evolution of many organisms that interact and show conceptual analogies [12,13]. The conclusions drawn from our model are thus likely to hold for temporal (and not only spatial) variability, whose impact on pathogens transmission has not been consistently studied so far.…”

The Virtual Life of Photography

“…Thus, it is inevitable that we will continue to perceive the conditions of a medium that in turn is uniquely, if no longer mechanically, perceptual. 3 The theory of photography as-we-have-known-it 4 has been preoccupied with the conjunction of perception, representation, knowledge, power, and subjectivity which Barthes ultimately assigned, or in fact consigned, to the realm of the studium. The realm of the studium is precisely that of the exterior environment -of ''culture'' and nature -which provokes, in Barthes, ''only a general and, so to speak, polite interest'' (27), but no real desire.…”

“…I will consider how his approach to the essence of photography, how his '''ontological' desire'' (3), might be reassessed through a comparison between intuition and affect, ontology and phenomenology, memory and perception.…”