Incorporating landscape elements into a connectivity measure:: a case study for the Speckled wood butterfly (Pararge aegeria L.)

被引:170
作者
Chardon, JP
Adriaensen, F
Matthysen, E
机构
[1] Univ Wageningen & Res Ctr, Dept Landscape Ecol, ALTERRA, NL-6700 AA Wageningen, Netherlands
[2] Univ Antwerp, Lab Anim Ecol, B-2610 Antwerp, Belgium
关键词
Belgium; butterfly; connectivity; cost-distance; effective distance; GIS; landuse type; resistance value; spatial configuration; HABITAT FRAGMENTATION; TERRITORIAL DEFENSE; DISPERSAL BEHAVIOR; PATCH CONNECTIVITY; CORRIDOR USE; METAPOPULATION; SIMULATION; RESPONSES; DYNAMICS; QUALITY;
D O I
10.1023/A:1026062530600
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
In spatial studies of populations, Euclidean distance is commonly used to measure the structural connectivity between habitat patches. The role of the matrix on patch connectivity is thereby ignored. However, the importance of the matrix for (dispersal) movement is increasingly being acknowledged. Our study compared the cost-distance measure with the Euclidean distance. The cost-distance is a simple GIS-calculated connectivity measure that incorporates the resistance of the landscape matrix to movement behaviour. We used presence-absence data from a field study on the Speckled wood butterfly in two Belgian landscapes. Logistic regression revealed that the cost-distance measure had a significantly better predictive power than the Euclidean distance. This result was consistent for all the six sets of different matrix resistance values. In our study the cost-distance proves to be a better connectivity measure than the Euclidean distance.
引用
收藏
页码:561 / 573
页数:13
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