Competition for resources

The main disadvantages of intercropping are competition between crops possible damage of the other crop during the harvest of one crop component complication of mechanization and cultivation decrease of symbiotic nitrogen fixation in legumes caused by plant competition for resources (Soon et al. 2004). 

Discrimination of the own species from other closely related and sym-patric species is essential not only for reproductive behavior hut also in the contexts of competition for resources and antipredator behavior. 

Plant ecologists and agricultural scientists have seldom agreed on anything. It is ironic that one general area of agreement involves the notion that when plants do not perform well together it is because of competition. I contend that this notion is false. In my view, interference is the outcome and competition for resources is but one mechanism. Allelopathy is another... 

Female aggression, maternal rodents Lactating female with litter present confronts intruding male Defense of young, competition for resources Attack and/or threaten intruder... 

Aggression due to omission of reward, mostly In pigeons, also monkeys Conditioned history, schedule-controlled operant behavior, omit or infrequent reinforcement Competition for resources food, sex, protected niches Attack pecks or bites, threat display toward conspecific or suitable object... 

How important is this project to the CRO Is there a risk that your project will suffer because of competition for resources for higher status projects from other companies ... 

In contrast to the selection experiments described above which were carried out on solid media, the library was grown in liquid culture lacking tyrosine and phenylalanine. This allows a direct competition for resources and amplification of the small... 

The biological function of the exported toxins is not known. The most common hypothesis to explain the presence of OA group toxins within algal cells is that they form a chemical defense against predation or that the toxin confers an advantage in the competition for resources (Wright and Cembella,... 

Several interactions, competition for resources and feeding of one population upon another in particular, have been studied in some detail and reasonably reliable mathematical models of some simple types of these interactions are available. Other interactions have not received so much attention, however, and in some cases nothing but qualitative statements about an interaction can be made. The review is concluded with a listing of areas where research is needed to provide and Improve knowledge of interspecific microbial interactions. 

Allelopathy is the term used for plants that produce chemical compounds harmful to nearby competitor plants. Such plants have a growth and reproduction advantage without competition for resources. Two plants exhibiting allelopathy are black walnut trees and canola (rape). 

Just engineering can provide practical solutions to local needs whether they arise from competition for resources, economic marginalisation, climate change or other factors. Such concrete (sometimes literally so) solutions can foster just... 

Social inequality characterized by markedly unequal distribution of resources and access to these resources, especially where the economy is in decUne and there is, as a result, more social inequality and more competition for resources. 

Figure 9.5b. Emergence of protocell structures. As the membranes grow, the competition for resources between regions separated by membranes takes place. The regions differentiate into two states. In some regions that are enclosed by membranes, the density of autocatalysts stays high. In the other regions, their density becomes almost zero l.

Furthermore, fossil fuel resources are unevenly distributed over the globe, leading to geopolitical unrest as a result of the competition for resource access. As a consequence of upheavals in the Middle East and North Africa in 2011, oil and food prices have soared, and may continue doing so. 

Safety is an emergency property that is determined by an ever emerging set of organizational and environmental conditions. These conditions include the competition for resources from other areas of the organization. 

Microbial community structure, function, and health are typically derived from competition for resources among community members. Mutualistic or antagonistic... 

Suppression of weed growth by some rice varieties is often associated with their tillering characteristics and increase root biomass, which complicates the differentiation of allelopathic effects from competition for resources or superior vigor. In the case of rice, some of the most allelopathic cultivars indeed have larger root masses than non-allelopathic cultivars, but none of the QTLs associated with allelopathy were linked to QTLs associated with root morphology. 

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