Probable walnut‐induced anaphylactic reaction in a dog          下载免费PDF全文

Ana Rostaher  Nina Maria Fischer  Claudia Kümmerle‐Fraune  Nicolas Couturier  Sandrine Jacquenet  Claude Favrot 《Veterinary dermatology》2017,28(2):251-e66

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Urban land use types contribute to grassland conservation: The example of Berlin     

Leonie K. Fischer  Moritz von der Lippe  Ingo Kowarik 《Urban Forestry & Urban Greening》2013,12(3):263-272

Urbanisation is an important driver of biodiversity loss, also contributing to habitat loss and fragmentation of grasslands at the urban-rural interface. While urban green spaces are known to include many grassland habitats, it is uncertain to what extent urban land use types harbour grasslands of special conservation interest and whether patch characteristics and connectivity of these differ from grasslands on agricultural land. By relating the city-wide biotope mapping to the land use mapping of Berlin, Germany, we assessed (1) to which specific urban land use types the major grassland biotope types belong, (2) differences in patch characteristics and connectivity, and (3) the conservation value of grassland patches at a typological level by means of their legal protection status. Grasslands cover 5% of Berlin's surface, and 43% of that area is assigned to legally protected grassland types. The majority of legally protected grassland (71%) lies on urban land opposed to 29% on agricultural land. Airports and historic parks, which only cover 2% of land in Berlin, contain one-third of all protected dry grasslands. Wet grassland is more confined to agricultural land. In airports and agricultural areas, grassland patches are larger but of a more complex shape than those in historic parks. In airports, grassland patches show greater connectivity as they are situated in grassland-dominated surroundings. Grassland in historic parks appears to be more vulnerable due to smaller patch sizes and higher fragmentation. The example of Berlin demonstrates that the urban green infrastructure can clearly contribute to grassland conservation and may thus partially compensate for the decline of traditional grasslands in cultural landscapes. It will be important to involve residents and landowners in urban grassland conservation and management because most grassland of special conservation interest (57%) was found outside of conservation areas.  相似文献   

Private residential urban forest structure and carbon storage in a moderate-sized urban area in the Midwest,United States     

Mikaela Schmitt-Harsh  Sarah K. Mincey  Matt Patterson  Burnell C. Fischer  Tom P. Evans 《Urban Forestry & Urban Greening》2013,12(4):454-463

In conjunction with urbanization and its importance as a major driver of land-use change, increased efforts have been placed on understanding urban forests and the provisioning of ecosystem services. However, very little research has been conducted on private property and little is known about the structure and function of privately owned urban forests. This research examines the structure of and carbon storage services provided by private residential urban forests in a moderate-sized Midwestern city. The primary research questions are as follows: What is the structure of private urban forests, and how does it vary across parcels? How much carbon is stored in tree and soil pools of private urban forests, and how does carbon vary across parcels? Ecological inventories were conducted on 100 residential parcels within 14 Neighborhood and Homeowners Associations of varying size and development age. Tree species richness, diversity, density, and diameter distribution were determined on a per parcel basis and for the entire tree population sampled. Further, tree and soil carbon storage were determined for each parcel. Results of this research demonstrated large variability in per-parcel tree metrics. Twelve of the parcels sampled had two or fewer trees, while eleven had greater than 50 trees. Further, tree carbon storage ranged from no carbon to 11.22 kg C m^?2. Alternatively, soil carbon storage was less variable and averaged 4.7 kg C m^?2, approximately 1.9 times higher than the average carbon stored in trees (2.5 kg C m^?2). Management efforts aimed at maintaining or enhancing carbon storage and other ecosystem services should focus on both soil protection and maximizing services in living biomass. Our results demonstrate that sustaining tree-produced ecosystem services requires maintenance of large old trees and species diversity, not only in terms of relative abundance, but also relative dominance, and in combination, species–specific size distributions.  相似文献   

Use of polymorphisms in the γ-gliadin gene of spelt and wheat as a tool for authenticity control     

Mayer F  Haase I  Graubner A  Heising F  Paschke-Kratzin A  Fischer M 《Journal of agricultural and food chemistry》2012,60(6):1350-1357

Partial sequencing of the γ-gliadin gene of 62 spelt and 14 soft wheat cultivars was performed. Fifty-six of the 62 spelt cultivars and 13 of the 14 soft wheat cultivars were shown to exhibit the typical spelt or soft wheat γ-gliadin sequence, respectively. Exceptions were ascribed to crossbreeding of soft wheat and spelt. Using the typical soft wheat γ-gliadin sequence, two alternative DNA-based analytical methods were developed for the detection and quantification of spelt flour "adulteration" with soft wheat. A simple and fast detection of soft wheat in spelt flours could be achieved by restriction fragment length (RFLP) analysis. In combination with lab-on-a-chip capillary gel electrophoresis (LOC-CE) the soft wheat proportion could be estimated. Heteroduplex formation served as additional confirmation for the presence of spelt besides soft wheat. Hence, RFLP-LOC-CE constitutes a perfect analysis tool for the quality control of cereal seeds and pure cultivars. A precise quantification of soft wheat "adulterations" in spelt flour down to 1% could be achieved by the developed real-time PCR method. The calibration parameters of the real-time PCR assay fulfilled the minimum performance requirements of the European Network of GMO (genetically modified organisms) Laboratories (ENGL).  相似文献   

Percutaneous, ultrasonographically guided technique of catheterization of the abdominal aorta in calves for serial blood sampling and continuous arterial blood pressure measurement     

J. Offinger  J. Fischer  J. Rehage  H. Meyer   《Research in veterinary science》2011,90(3):521-525

The study describes a technique of ultrasonographically guided transcutaneous catheter implantation into the abdominal aorta of 29 6- to 8-week-old German Holstein calves. Catheters were implanted between the left transverse processes of L3 and L4, left in place for 2 days and used for serial blood sampling and continuous measurement of blood pressure. Complete cell counts and clinical examination were performed before, as well as 1 and 5 days after implantation. Catheterization was successful in all calves. The catheter was patent for blood sampling and pressure recordings at all times. A significant decrease in red blood cells was found in all animals after catheterization, which remained reduced for 5 days. Clinical signs of anaemia were absent. In conclusion, ultrasonographically guided catheterization of the abdominal aorta provides a continuous arterial access in calves, whereby the minimal invasive technique and the ultrasonographical guidance reduces accidental tissue trauma and pain for the animal.  相似文献   

Squirrel adenovirus type 1 in red squirrels (Sciurus vulgaris) in Germany     

Peters M  Vidovszky MZ  Harrach B  Fischer S  Wohlsein P  Kilwinski J 《The Veterinary record》2011,169(7):182

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Imepitoin for treatment of idiopathic head tremor syndrome in dogs: A randomized,blinded, placebo-controlled study     

Nina Schneider  Heidrun Potschka  Sven Reese  Franziska Wielaender  Andrea Fischer 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2020,34(6):2571-2581

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Accuracy of a magnetic resonance imaging-based 3D printed stereotactic brain biopsy device in dogs     

Sarah Gutmann  Dirk Winkler  Marcel Müller  Robert Möbius  Jean-Pierre Fischer  Peter Böttcher  Ingmar Kiefer  Ronny Grunert  Thomas Flegel 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2020,34(2):844-851

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Untersuchungen über den Einfluß des Mikronährstoffes Bor auf den N-Umsatz von Helianthus annuus L.     

Irmgard Hundt  Werner Bergmann  Friedrich Fischer  Günther Schilling 《Archives of Agronomy and Soil Science》2013,59(8):713-724

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Empirical models for predicting the production of wild mushrooms in Scots pine (Pinus sylvestris L.) forests in the Central Pyrenees   总被引：1，自引：0，他引：1  

José Antonio Bonet  Timo Pukkala  Christine R. Fischer  Marc Palahí  Juan Martínez de Aragón  Carlos Colinas 《Annals of Forest Science》2008,65(2):206-206

Mushroom picking has become a widespread autumn recreational activity in the Central Pyrenees and other regions of Spain. Predictive models that relate mushroom production or fungal species richness with forest stand and site characteristics are not available. This study used mushroom production data from 24 Scots pine plots over 3 years to develop a predictive model that could facilitate forest management decisions when comparing silvicultural options in terms of mushroom production. Mixed modelling was used to model the dependence of mushroom production on stand and site factors. The results showed that productions were greatest when stand basal area was approximately 20 m² ha^?1. Increasing elevation and northern aspect increased total mushroom production as well as the production of edible and marketed mushrooms. Increasing slope decreased productions. Marketed Lactarius spp., the most important group collected in the region, showed similar relationships. The annual variation in mushroom production correlated with autumn rainfall. Mushroom species richness was highest when the total production was highest.  相似文献