种间互作网络的结构、生态系统功能及稳定性机制研究

李海东, 吴新卫, 肖治术

Assembly, ecosystem functions, and stability in species interaction networks

LI Hai-Dong, WU Xin-Wei, XIAO Zhi-Shu

表2 种间互作网络构建的主要假说

Table 2 Main hypotheses for the assembly of species interaction networks

假说 Hypothesis 解释 Explanation 中性假说 Neutral hypothesis 群落中个体之间的互作是随机的, 因此多度越高的物种与其他物种发生互作的概率越高 Which assumes that individuals interact randomly, thus network interaction patterns are mainly dependent on species abundances; that is, abundant species interact more frequently and with more species than rare species 限制性连接假说 Forbidden links hypothesis 物种间互作的发生受限于物种间的时空分布, 以及物种特征的耦合度 Pairwise interactions that are impossible to occur owing to temporal-spatial or species traits mismatch 亲缘关系假说 Phylogenetic-related hypothesis 亲缘关系近的物种在互作网络中扮演相似的角色 Tendency of phylogenetically similar species to have similar roles in interaction network