JuliusKuhnArchiv最新文献

{"title":"Genetische Diversität von Helosciadium nodiflorum (L.) W. D. J. KOCH Vorkommen in Deutschland","authors":"I. Mewis, A. Naumann, Matthias Zander, L. Frese, Maria Bönisch, C. Ulrichs","doi":"10.5073/JKA.2020.466.015","DOIUrl":"https://doi.org/10.5073/JKA.2020.466.015","url":null,"abstract":"of the poster by MEWIS et al. (2019) Helosciadium nodiflorum (L.) W.D.J.Koch (Syn. Apium nodiflorum L.), a wild relative of celery and celeriac, has been selected as a model species to promote the establishment of genetic reserves in Germany. The genetic diversity and geographic patterns of genetic differentiation was investigated in the frame of the model and demonstration project GE-Sell, financially supported by the German Federal Ministry of Food and Agriculture through the Federal Office for Agriculture and Food (grant number 2814BM110 to 112). H. nodiflorum is distributed more in the western and south western part of Germany, namely in the states Rheinland-Pfalz, Nordrhein-Westfalen, Saarland and Hessen. In total, 24 sites were selected to study the genetic diversity of the species, of which 20 have been finally investigated. A set of 17 polymorphic SSR markers were identified and used for the genetic analysis of differences in the H. nodiflorum occurrences. DNA was amplified by using PCR and Microsatellite (ABI) analysis of fragments was conducted by means of capillary electrophoresis. The observed heterozygosity (Ho) ranges between 0.043 and 0.543 and the expected (He) heterozygosity between 0.308 and 0.848. The measure ∆SD(j) was calculated to evaluate the impact of each occurrence to genetic differentiation. HnLOE (∆SD(HnLOE) = 0.2901) represents the genetic composition of the pooled remaining 19 occurrences best and HnROD (∆SD(HnROD) = 0.6754) deviates most from its complement. Based on molecular and other biological parameters 15 occurrences were selected for the establishment of genetic reserves. However, re-visiting the population sites after 12 month and monitoring of the area revealed that two populations were Genetische Erhaltungsgebiete für Wildpflanzen für Ernährung und Landwirtschaft – Fachtagung 2019 Julius-Kühn-Archiv, 466, 2020 99 strongly reduced in number and distribution area due to abiotic and biotic factors. Therefore, only 13 occurrences for most appropriate crop wild relative population could be recommended with emphasis.","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"98-99"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42832268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gebietseigenes Saatgut, § 40 (4) BNatSchG, ein Schnittpunkt zwischen Landwirtschaft und Naturschutz","authors":"Detlev Finke","doi":"10.5073/JKA.2020.466.008","DOIUrl":"https://doi.org/10.5073/JKA.2020.466.008","url":null,"abstract":"","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":" ","pages":"75-76"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48448179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pesticide residues and transformation products in honeybees: A 2018 mid-2019 appraisal","authors":"K. Kasiotis, E. Zafeiraki, P. Anastasiadou, Electra Manea-Karga, K. Machera","doi":"10.5073/JKA.2020.465.061","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.061","url":null,"abstract":"s: Poster 134 Julius-Kühn-Archiv, 465, 2020 Section 5Monitoring 5.1.P Pesticide Residues and Transformation Products in Honeybees: A 2018 mid2019 Appraisal Konstantinos M. Kasiotis, Effrosyni Zafeiraki, Pelagia Anastasiadou, Electra Manea-Karga, Kyriaki Machera Benaki Phytopathological Institute, Laboratory of Pesticides’ Toxicology, 8 St. Delta Street, Athens, Kifissia 14561, Greece E-mail: K.Kasiotis@bpi.gr, E.Zafeiraki@bpi.gr, K.Machera@bpi.gr DOI 10.5073/jka.2020.465.061","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"134-134"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41377704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The use of toxic reference chemicals in solitary bee larval bioassays","authors":"Anja Quambusch, Nina Exeler","doi":"10.5073/JKA.2020.465.051","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.051","url":null,"abstract":"","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"108-108"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44662751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the impact of microbial plant protection products containing Bacillus thuringiensis on the survival of adult and larval honeybees ( Apis mellifera , L.)","authors":"Charlotte S. Steinigeweg, A. Alkassab, Jakob H. Eckert, D. Richter, J. Pistorius","doi":"10.5073/JKA.2020.465.062","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.062","url":null,"abstract":"","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"135-135"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44134627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interactions between Bombus terrestris and glyphosate-treated plants: are bees at risk of herbicide exposure?","authors":"L. J. Thompson, J C Stout, D. Stanley","doi":"10.5073/JKA.2020.465.060","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.060","url":null,"abstract":"s: Poster Julius-Kühn-Archiv, 465, 2020 133 4.12.P Interactions between Bombus terrestris and glyphosate-treated plants: are bees at risk of herbicide exposure? Linzi J. Thompson1,2, Jane C. Stout3, Dara A. Stanley1,2 1School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland 2Earth Institute, University College Dublin, Dublin 4, Ireland 3School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland E-Mail: Linzi.Thompson@ucdconnect.ie DOI 10.5073/jka.2020.465.060","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"133-133"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45165500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bee colony assessments with the Liebefeld method: How do individual beekeepers influence results and are photo assessments an option to reduce variability?","authors":"H. Bargen, Aline Fauser, H. Gätschenberger, Gundula Gonsior, S. Knäbe","doi":"10.5073/JKA.2020.465.047","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.047","url":null,"abstract":"Colony strength, food storage and brood development are a fundamental part of each honeybee field study. Colony assessments are used to compare and assess those for beehive over time. At present, most colony assessments are made by experienced beekeepers according to Liebefeld method. This method is based on an estimation of areas covered by honeybees, food and brood stages on each side of a comb. Areas are counted from a grid separating the comb side into 8 sections which are protocolled with an accuracy of 0.5 sections. An assessment for a hive takes up to 20 min and even with two field locations, it is necessary to split assessments between beekeepers. \u0000So, it is important to make estimates as comparable as possible. For this purpose, beekeepers practice the assessments on pre-determined photographs to “calibrate themselves”. The advantage of the Liebefeld assessment is that the condition of bee hive is estimated with minimum disturbance of the bees. Digital photography is under discussion to gain data with high precision and accuracy with one major disadvantage. To be able to see food and brood stages in photographs, bees have to be removed from combs. This, however, results in a disturbance of the colony – especially if the assessments take place in short time intervals of 7 ± 1 days. \u0000An experiment was performed to evaluate the variation between individual beekeepers and to compare the results to data generated with photographs. For the experiment, five colonies were assessed each by four beekeepers independently according to Liebefeld method. Each comb side of the five colonies was photographed with and without honeybees sitting on it for precise analysis at the computer for a number of bees, nectar cells, pollen cells, eggs, open brood and capped brood. The number of bees and cells with the different contents were generated by an area-based assessment in ImageJ as well as a detailed counting with help of HiveAnalyzer® Software. Data from beekeeper estimations were then compared with assessments based on digital photography. With the results of the experiment, we tried to answer several questions. With the study, we wanted to determine the level of variation between the beekeepers for the live stages and food stores estimated.","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"100-105"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49110682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Method development for a larval test design for the solitary bee Osmia cornuta - First experiences with different larval pollen provisions","authors":"Nina Exeler, Anja Quambusch","doi":"10.5073/JKA.2020.465.059","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.059","url":null,"abstract":"","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"132-132"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46274155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sensitivity of the honey bee and different wild bee species to plant protection products – two years of comparative laboratory studies","authors":"T. Jütte, Anna Wernecke, J. Pistorius","doi":"10.5073/JKA.2020.465.054","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.054","url":null,"abstract":"","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"121-122"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46566341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Practical and regulatory experience in the conduct of bee residue trials","authors":"Silke Peterek, E. Collison, Vincent Ortoli, Alexia Faure","doi":"10.5073/JKA.2020.465.048","DOIUrl":"https://doi.org/10.5073/JKA.2020.465.048","url":null,"abstract":"To ensure the safe use of agrochemicals, today’s regulatory system requires an assessment of the environmental risk to bees, as well as an assessment of the dietary risk to humans following the consumption of honey and other bee products. Field trials can provide valuable data to assess the potential exposure of foraging honey bees to agrochemical residues and hence the potential for residues to reach honey consumed by humans.","PeriodicalId":30493,"journal":{"name":"JuliusKuhnArchiv","volume":"1 1","pages":"105-107"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49241607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}