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Unexpected ecotone dynamics of a sand dune vegetation complex following water table decline

Journal of Plant Ecology 2016年第1期9卷 40-50页

作者： Csaba Tölgyesi Márta Zalatnai LászlóErdős Zoltán Bátori nicole rosemary hupp LászlóKörmöczi Department of Ecology University of SzegedSzeged H-6726Hungary Wildlife Biology Program College of Forestry and ConservationUniversity of Montana32 Campus DriveMissoulaMontanaMT 59812USA

Aims Central Hungarian inland dune ranges harbor heterogeneous grassland vegetation with an extensive network of ecotones,arranged perpendicular to topography-driven hydrologic *** area suffers from severe aridification due to climate change and local anthropogenic factors,which have led to a dramatic decline of the water *** a result,groundwater is no longer reachable for lowlying plant communities;thus,we expect they are bound to undergo profound *** study investigates how the plant communities respond to this changing environment over time by monitoring ecotones,since they are frequently the hotspots of ecosystem *** monitored five ecotones along permanent belt transects for 15 years to characterize their dynamic response,and to identify the internal structural changes of the plant communities the ecotones *** Ecotones were delineated with the split moving window *** dynamics of two ecotone parameters,location and contrast,were analyzed with linear regression models incorporating two independent variables:study year as a measure of time since the loss of groundwater,and precipitation as a possible driver of interannual *** internal changes of the patches separated by the ecotones were analyzed using plant functional *** Findings Precipitation had no detectable effect on the ecotone descriptors,but study year influenced ecotones in an unusual *** position of the ecotones appeared to be very stable in time;their dynamics are stationary,not directional as we *** contrasts had clear tendencies;two ecotones disappeared,one new one was formed and two ecotones showed no *** internal changes of the patches over time were dramatic,showing a shift toward more xeric and more open plant assemblages in most stretches of the ***,the dynamic response of the vegetation was not patch expansion ***,but fusion ***,which profoundly restructured the vegetati

关键词： groundwater decline plant functional group sand dune vegetation split moving window stationary ecotone

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Effects of broccoli extract and various essential oils on intestinal and faecal microflora and on xenobiotic enzymes and the antioxidant system of piglets

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Open Journal of Animal Sciences 2012年第2期2卷 78-98页

作者： Kristin Mueller nicole M. Blum Holger Kluge Rolf Bauerfeind Julia Froehlich Anneluise Mader Karola R. Wendler Andreas S. Mueller Delacon Biotechnik Ges.m.b.H. Steyregg Austria Institute of Agricultural and Nutritional Sciences Preventive Nutrition Group Martin Luther University of Halle-Wittenberg Halle Germany Institute of Animal Nutrition Free University of Berlin Berlin Germany Institute of Veterinary Hygiene and Infectious Diseases of Animals Justus Liebig University Giessen Giessen Germany

Objective: Since the ban of antibiotics as growth promoting feed additives in the EU in 2006 research in alternatives has gained importance. Phytogenic feed additives represent a heterogenous class of different plant derived substances that are discussed to improve the health of farm animals by direct and indirect antioxidant effects and by influencing microbial eubiosis in the gastrointestinal tract. Consequently our study aimed to investigate the influence of broccoli extract and the essential oils of tur- meric, oregano, thyme and rosemary, as selected individual additives, on intestinal and faecal microflora, on xenobiotic enzymes, and on the antioxidant system of piglets. Methods: 48 four weeks old male weaned piglets were assigned to 6 groups of 8. The piglets were housed individually in stainless steel pens with slatted floor. The control group (Con) was fed a diet without an additive for 4 weeks. The diet of group BE contained 0.15 g/kg sulforaphane in form of a broccoli extract. 535, 282, 373 and 476 mg/kg of the essential oils of turmeric (Cuo), oregano (Oo), thyme (To) and rosemary (Ro) were added to the diets of the remaining 4 groups to stan-dardise supplementation to 150 mg/kg of the oils’ key terpene compounds ar-turmerone, carvacrol, thymol and 1,8-cineole. The composition of bacterial microflora was examined by cultivating samples of jejeunal and colonic mucosa and of faeces under specific conditions. The mRNA expression of xenobiotic and antioxidant enzymes was determined by reversing transcrip- tase real time detection PCR (RT-PCR). Total antioxidant status was assayed using the Trolox Equivalent Antioxidant Capacity (TEAC), and lipid peroxidation was determined by measuring thiobarbioturic acid reactive substances (TBA- RS). Results: Compared to Con piglets all additives positively influenced weight gain and feed conversion in week 1. Over the whole trial period no significant differences in performance parameters existed between the experimental

关键词： Pigs Phytogenic Feed Additives Broccoli Extract Essential Oils Xenobiotic Enzymes Antioxidant System

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何国钲与罗西尼的时光之旅

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服装设计师 2010年第12期 27-27页

作者： nicole（译）

10月28日．“ROSSINI罗西尼”呈献DORANHO·何国钲2011春夏高级时装新闻发布会在北京饭店隆重举行．香港设计师何国钲携手著名手表品牌罗西尼公司总经理助理韩奇娟亮相现场．著名影星钟丽缇与何国钲2011春夏高级时装发布会主秀模特Rosem... 详细信息

10月28日．“ROSSINI罗西尼”呈献DORANHO·何国钲2011春夏高级时装新闻发布会在北京饭店隆重举行．香港设计师何国钲携手著名手表品牌罗西尼公司总经理助理韩奇娟亮相现场．著名影星钟丽缇与何国钲2011春夏高级时装发布会主秀模特rosemary也受邀参加。双方相关负责人表示．在这次成功的合作之后，将会加大合作的力度。

关键词：时装发布会新闻发布会手表品牌北京饭店高级时装总经理设计师负责人

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