Gall-inducing insects have especially intimate interactions with their host plants and generally show great specificity with regard to both the host-plant species and the organ (e.g. flower, leaf) galled. However, the relative roles of shifts between host species and between host-plant organs in the diversification of gall-inducers are uncertain. We employ a novel and general maximum-likelihood...

Distribution pattern, nest-tree characteristics and reproductive features of Black Stork’s population were evaluated in the floodplains Gornje Podunavlje Northwestern Serbia over five consecutive years. In total, 44 different nests discovered monitored. Nests mostly placed on wide-diameter European Oaks White Poplars between 5.5 18 m above ground level. Annually, number occupied varied 26 16 wi...

The two earliest Arabic treatises explaining the construction of magic squares date from 10th century ad. One is found in Commentary on Arithmetical [Introduction] (Kitāb tafsīr al-Arithmāṭīqī) by ʿAlī ibn Aḥmad al-Anṭākī (d. 376 H/ad 987). Only book 3 original three books extant, and that a single manuscript. This divided into chapters: first collection arithmetical definitions, statements pro...

J. Econ. Entomo!. 79: 1276-1279 (1986) ABSTRACT In 1984-85 free-flying nitidulids were trapped in centers of oak wilt, Ceratocystis fagacearum (Bretz) Hunt, for 1 year at six locations in central Texas. Two of the 10 species identified, Cryptarcha concinna Melsheimer and Coiopterus maculatus (Erichson), accounted for 57 and 35%, respectively, of the total number (3,397) of beetles trapped. Peak...

A report on recent results and outstanding problems concerning additive chow groups. “Mighty oaks from little acorns grow.”

Quercus robur L. (pedunculate oak) and Quercus petraea (Matt.) Liebl. (sessile oak) are two European oak species of great economic and ecological importance. Even though both oaks have wide ecological amplitudes of suitable growing conditions, forests dominated by oaks often fail to regenerate naturally. The regeneration performance of both oak species is assumed to be subject to a variety of v...

BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commer...