منابع مشابه
Plant Competition Underground
Belowground competition occurs when plants decrease the growth, survival, or fecundity of neighbors by reducing available soil resources. Competition belowground can be stronger and involve many more neighbors than aboveground competition. Physiological ecologists and population or community ecologists have traditionally studied belowground competition from different perspectives. Physiological...
متن کاملIndices of plant competition
1 Mathematical indices, formed by combining several primary measures, can help researchers summarize, interpret and display results from plant competition experiments. This essay compiles and discusses more than 50 indices that have been used in studies of plant competition. 2 Indices allow researchers to quantify and express several attributes of plant competition, including competition intens...
متن کاملMycorrhizal fungal identity and diversity relaxes plant-plant competition.
There is a great interest in ecology in understanding the role of soil microbial diversity for plant productivity and coexistence. Recent research has shown increases in species richness of mutualistic soil fungi, the arbuscular mycorrhizal fungi (AMF), to be related to increases in aboveground productivity of plant communities. However, the impact of AMF richness on plant-plant interactions ha...
متن کاملOn the indices of plant /plant competition and their pitfalls
The index of relative competition intensity (RCI) has serious built-in biases, due to its asymptotic behavior when competition intensity is high and its tendency to obtain very low values when plants with neighbors intact perform better than neighbor removal plants. These biases have been partially corrected in the index of relative neighbor effect (RNE), but the existence of fixed upper and lo...
متن کاملPlant–plant signalling, the shade-avoidance response and competition
This is the flow of information between Plant–plant signalling Plants generate and perceive informational signals. individuals. An interaction is considered An interaction (between plants) is considered to be to be informational when it involves the informational when it involves the exchange of an exchange of an insignificant amount of matter or energy, in quantitative terms, insignificant amo...
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ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/337123a0