Hubálek Z
Folia Parasitol (Praha). 1976;23(3):267-72.
Twelve species of keratin decomposers isolated from 923 samples of feathers, nests and pellets of 90 species of free-living birds were clustered in 4 "econs" (numerical ecological groups): (A) Artroderma tuberculatum, A. ciferrii, A. multifidum, A. cuniculi (associated with the birds nesting in hollows); (B) Ctenomyces serratus, Arthroderma quadrifidum, Chrysosporium evolceanui (moderately alkalophilic species associated with the birds having a frequent contact with the soil); (C) Chrysosporium keratinophilum, Aphanoascus fulvescens, Chrysosporium tropicum (alkalophilic and hygrophilic species); (D) Arthroderma curreyi, Aphanoascus terreus (the species common in water habitats and associated frequently with exoanthropic birds). Two simple numerical procedures were used and compared: (1) Jaccard's association coefficient, and Sörensen's complete linkage clustering; (2) Forbes's association coeficient adjusted with chi-square, and the 3-linkage clustering technique. The method (2) seemed to be more effective.
从90种自由生活鸟类的923份羽毛、鸟巢和粪便样本中分离出的12种角蛋白分解菌被聚类为4个“生态类群”（数值生态组）：(A) 瘤状节皮菌、西费里节皮菌、多裂节皮菌、穴居节皮菌（与在树洞中筑巢的鸟类相关）；(B) 锯齿梳霉、四裂节皮菌、埃氏金孢子菌（与经常接触土壤的鸟类相关的中度嗜碱菌种）；(C) 嗜角质金孢子菌、黄褐隐球菌、热带金孢子菌（嗜碱和亲水菌种）；(D) 柯氏节皮菌、土生隐球菌（常见于水生生境且经常与外来鸟类相关的菌种）。使用并比较了两种简单的数值方法：(1) 雅卡尔关联系数和索伦森完全连锁聚类法；(2) 经卡方调整的福布斯关联系数和三连锁聚类技术。方法(2)似乎更有效。
