Properties and a model of the plant-pollinator networks

초록

We studied on the bipartite networks consisting of plants and pollinators. We investigated the physical properties of these ecological networks such as the distribution function for degree and strength, disparity, and correlation for the degree and strength. The degree and strength distribution of plant shows stretched exponential forms whereas those of pollinator do power-law form. To understand the emergence of different degree distributions in bipartite network, we introduced a growing network model based on Barabasi-Albert model. We assign the different connecting probability and number of links, considering numbers for nodes and links of real data, between plant and pollinator when they come into the network. We can reproduce the power-law and stretched exponential distribution for the pollinator and the plant.