CAJ | 학술논문

研究了14个典型食物链网络对顶点攻击和边攻击的反应.考虑到食物链网络的能量传递特征,实验中引入了顶点介数攻击和边介数攻击.选用鲁棒性系数(使物种灭绝率达到50%的顶点移除比例)测量顶点攻击效果,发现对大多数食物链网络,顶点介数攻击的效果比顶点度攻击好.以相同边移除率为标准,对顶点攻击和边攻击的效果进行了测量,发现边攻击的效果明显优于顶点攻击.
연구료14개전형식물련망락대정점공격화변공격적반응.고필도식물련망락적능량전체특정,실험중인입료정점개수공격화변개수공격.선용로봉성계수(사물충멸절솔체도50%적정점이제비례)측량정점공격효과,발현대대다수식물련망락,정점개수공격적효과비정점도공격호.이상동변이제솔위표준,대정점공격화변공격적효과진행료측량,발현변공격적효과명현우우정점공격.
The response of 14 food webs to attacks on vertices and edges isstudied in this article. Taking account of the energytransportation character of food webs, attacks on vertices and edges based on “betweenness” are introduced into the experlment. Food web robustness, the fraction of species that had to be removed in order to result in a total loss of 50% of the species,is selected to measure the effect of attacks on vertices, and it is found that attacks based on betweenness is more effective than degree-based attacking on most food webs. For the same removal rate of edges, it is found that attack on edges is better than on vertices。