"Arthropod Island" of Shrub Effect: Concept,Method, and Model Construction
"Arthropod Island" of shrub effect can be used to reflect the interaction between shrub and arthropods in mobile sand land.However,there was largely unknown about the concept,method,and model construction for the "Arthropod Island" of shrub effect.Through the quantitative concept for the "Arthropod Island" of shrub effect,the mathematical expression was selected in order to determine the model for the interaction between shrub and arthropods.The results were shown that "Arthropod Island" referred to the statistical distribution of arthropods at community and population levels between the microhabitats beneath the shrub canopy and in the open spaces.Relative neighbor effect (RNE) and relative interaction intensity (RH) was confirmed to be better expressions to indicate the quantitative "Arthropod Island" at the population level.At the community level,these five indices could be used but needed to be test in light of the results.Mathematical model for the interaction between shrub and arthropods was expressed as RⅡ=α/(α+2B)(α means the interaction intensity) at both community and population levels.
NETL
NSTL
万方数据
维普
