نتایج جستجو برای: natural enemy
تعداد نتایج: 485279 فیلتر نتایج به سال:
Lytic bacteriophages and protozoan predators are the major causes of bacterial mortality in natural microbial communities, which also makes them potential candidates for biological control of bacterial pathogens. However, little is known about the relative impact of bacteriophages and protozoa on the dynamics of bacterial biomass in aqueous and biofilm phases. Here, we studied the temporal and ...
We examine the problem of building or fortifying a network to defend against enemy attack scenarios. In particular, we examine the case in which an enemy can destroy all or part of the arcs that we construct on the network, subject to some interdiction budget. This problem takes the form of a three-level, two-player game, in which we act first to construct our network and simultaneously transmi...
Plants in nature have developed many defense mechanisms to defend themselves against attacks by harmful organisms; these mechanisms are indirect and direct. When attacked by a harmful organism, many plant species release volatile substances that attract natural enemies of herbivores. Volatile substances have an important role in the tritrophic system consisting of a plant, a herbivore, and its ...
In internal ethno-territorial conflicts, what explains why state or rebel group leaderships use civilian-targeting strategies—expulsion or mass killing strategies designed to punish enemy civilians or to decimate the enemy civilian presence on contested territory? One argument is that those living under the worst initial conditions—defined in terms of collective goods such as weak collective au...
Conservation biological control emphasizes the preservation and enhancement of natural enemies and is the cornerstone of all approaches to biological control. This review critically examines recent and current research efforts in conservation biological control by predators and parasitoids of Bemisia tabaci worldwide. A large number of natural enemy species have been identified from many agricu...
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