Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interactions mediated by a public good transiently increase
  cooperativity in growing Pseudomonas putida metapopulations   Bacterial communities have rich social lives. A well-established interaction
involves the exchange of a public good in Pseudomonas populations, where the
iron-scavenging compound pyoverdine, synthesized by some cells, is shared with
the rest. Pyoverdine thus mediates interactions between producers and
non-producers and can constitute a public good. This interaction is often used
to test game theoretical predictions on the "social dilemma" of producers. Such
an approach, however, underestimates the impact of specific properties of the
public good, for example consequences of its accumulation in the environment.
Here, we experimentally quantify costs and benefits of pyoverdine production in
a specific environment, and build a model of population dynamics that
explicitly accounts for the changing significance of accumulating pyoverdine as
chemical mediator of social interactions. The model predicts that, in an
ensemble of growing populations (metapopulation) with different initial
producer fractions (and consequently pyoverdine contents), the global producer
fraction initially increases. Because the benefit of pyoverdine declines at
saturating concentrations, the increase need only be transient. Confirmed by
experiments on metapopulations, our results show how a changing benefit of a
public good can shape social interactions in a bacterial population.

27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int