@misc{HellmannRettweilerKrameretal.2007, author = {Hellmann, Uwe and Rettweiler, Udo and Kramer, Annette and Zehe, Erwin and Jacob, Andreas and Hafner, Johann Evangelist and Tronicke, Jens and M{\"u}hle, Ralf-Udo and Klauss, Susanne and Dietrich, Larissa and Richter, Norbert and Schweigl, Kerstin}, title = {Portal = Ressource Wasser: Mehr als ein Elixier des Lebens}, number = {04-05/2007}, organization = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit}, issn = {1618-6893}, doi = {10.25932/publishup-44005}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-440051}, pages = {43}, year = {2007}, abstract = {Aus dem Inhalt: - Ressource Wasser: Mehr als ein Elixier des Lebens - Dorniges hinter Glas - Die Profstars 2007 - Technik gegen unerw{\"u}nschte Mith{\"o}rer entwickelt}, language = {de} } @article{HlinakMuehleWerneretal.2006, author = {Hlinak, Andreas and M{\"u}hle, Ralf-Udo and Werner, Ortrud and Globig, Anja and Starick, Elke and Schirrmeier, Horst and Hoffmann, Bernd and Engelhardt, Andreas and H{\"u}bner, Dagmar and Conraths, Franz J. and Wallschl{\"a}ger, Hans-Dieter and Kruckenberg, Helmut and M{\"u}ller, Thomas}, title = {A virological survey in migrating waders and other waterfowl in one of the most important resting sites of Germany}, issn = {0931-1793}, year = {2006}, abstract = {Wild birds are considered a potential reservoir or a carrier of viral diseases and may therefore play a role in the epidemiology of economically important or zoonotic diseases. In 2001 and 2002, a survey with special emphasis oil virus isolation in migrating waders and some other birds were conducted. In one of the most important inland resting sites for migratory waterfowl, tracheal and cloacal swabs were collected from 465 waders representing 19 different species, and 165 other birds that were not captured on purpose. A total of 42 avian viruses were isolated, 34 of these were identified as paramyxoviruses (PMVs). The majority of isolates came from waders and wild ducks, and were characterized as PMV-1. In contrast, PMV-4 was found in wild ducks only, PMV-6 was mainly detected in wader species. Four avian influenza viruses (ATVs), belonging to H4 and H3 haemagglutinin subtype, were isolated from wild duck species. Furthermore, four reo-like viruses were isolated from one particular wader species for the first time. The majority of virus positive birds were < 1 year old and did not show any clinical symptoms. There was no evidence for the presence of West Nile virus in these birds. These results confirm that the restricted resting sites in Western Europe must be considered as important locations for the intra- and interspecies transmission of avian viruses}, language = {en} } @article{GeisslerMuehleGzik2005, author = {Geißler, Katja and M{\"u}hle, Ralf-Udo and Gzik, Axel}, title = {Cnidium dubium und Microtus arvalis : eine Pflanze-Konsument-Interaktion der Unteren Havelaue in Abh{\"a}ngigkeit von der wurzelb{\"u}rtigen Assimilationsspeicherung}, year = {2005}, language = {de} } @article{Muehle2003, author = {M{\"u}hle, Ralf-Udo}, title = {Tierleben}, series = {Brandenburgische Umwelt-Berichte : BUB ; Schriftenreihe der Mathematisch-Naturwissenschaftlichen Fakult{\"a}t der Universit{\"a}t Potsdam}, volume = {13}, journal = {Brandenburgische Umwelt-Berichte : BUB ; Schriftenreihe der Mathematisch-Naturwissenschaftlichen Fakult{\"a}t der Universit{\"a}t Potsdam}, issn = {1434-2375}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4056}, pages = {82 -- 97}, year = {2003}, language = {de} } @article{FrommholdHeimBarabanovetal.2019, author = {Frommhold, Martin and Heim, Arend and Barabanov, Mikhail and Maier, Franziska and M{\"u}hle, Ralf-Udo and Smirenski, Sergei M. and Heim, Wieland}, title = {Breeding habitat and nest-site selection by an obligatory "nest-cleptoparasite", the Amur Falcon Falco amurensis}, series = {Ecology and evolution}, volume = {9}, journal = {Ecology and evolution}, number = {24}, publisher = {Wiley}, address = {Hoboken}, issn = {2045-7758}, doi = {10.1002/ece3.5878}, pages = {14430 -- 14441}, year = {2019}, abstract = {The selection of a nest site is crucial for successful reproduction of birds. Animals which re-use or occupy nest sites constructed by other species often have limited choice. Little is known about the criteria of nest-stealing species to choose suitable nesting sites and habitats. Here, we analyze breeding-site selection of an obligatory "nest-cleptoparasite", the Amur Falcon Falco amurensis. We collected data on nest sites at Muraviovka Park in the Russian Far East, where the species breeds exclusively in nests of the Eurasian Magpie Pica pica. We sampled 117 Eurasian Magpie nests, 38 of which were occupied by Amur Falcons. Nest-specific variables were assessed, and a recently developed habitat classification map was used to derive landscape metrics. We found that Amur Falcons chose a wide range of nesting sites, but significantly preferred nests with a domed roof. Breeding pairs of Eurasian Hobby Falco subbuteo and Eurasian Magpie were often found to breed near the nest in about the same distance as neighboring Amur Falcon pairs. Additionally, the occurrence of the species was positively associated with bare soil cover, forest cover, and shrub patches within their home range and negatively with the distance to wetlands. Areas of wetlands and fallow land might be used for foraging since Amur Falcons mostly depend on an insect diet. Additionally, we found that rarely burned habitats were preferred. Overall, the effect of landscape variables on the choice of actual nest sites appeared to be rather small. We used different classification methods to predict the probability of occurrence, of which the Random forest method showed the highest accuracy. The areas determined as suitable habitat showed a high concordance with the actual nest locations. We conclude that Amur Falcons prefer to occupy newly built (domed) nests to ensure high nest quality, as well as nests surrounded by available feeding habitats.}, language = {en} } @article{MuehleBurkartPoetsch1998, author = {M{\"u}hle, Ralf-Udo and Burkart, Michael and P{\"o}tsch, Joachim}, title = {On the importance of flooded grassland at the Ramsar site of the lower Havel river valley for waterfowl}, issn = {0761-9243}, year = {1998}, language = {en} } @article{Muehle1994, author = {M{\"u}hle, Ralf-Udo}, title = {Makroskopische Bodentiere als Indikatoren f{\"u}r den Gew{\"a}sserzustand an der Unteren Havel}, year = {1994}, language = {de} } @article{Muehle1995, author = {M{\"u}hle, Ralf-Udo}, title = {Partial restoration of a river-lake in the lower Havel river valley : lake G{\"u}lpe, Germany}, year = {1995}, language = {en} } @article{HlinakMuellerKrameretal.1998, author = {Hlinak, Andreas and M{\"u}ller, Thomas and Kramer, Matthias and M{\"u}hle, Ralf-Udo and Liebherr, Helga and Ziedler, Klaus}, title = {Serological survey of viral pathogens in bean and white-fronted geese from Germany}, issn = {0090-3558}, year = {1998}, language = {en} } @article{GoetzeMuehle1997, author = {G{\"o}tze, B. and M{\"u}hle, Ralf-Udo}, title = {Von M{\"u}hlen im westlichen Havelland : ein Beitrag zur havell{\"a}ndischen Regionalgeschichte}, publisher = {Kreismuseum}, address = {Rathenow}, pages = {S. 1 - 13}, year = {1997}, language = {de} } @article{KnoescheMuehle1997, author = {Kn{\"o}sche, R{\"u}diger and M{\"u}hle, Ralf-Udo}, title = {Geschichte der Havel-Flußlandschaft : die Regulierung des Flußlaufes und deren Wirkungen auf die {\"O}kosysteme}, year = {1997}, language = {de} } @article{MuehleBurkartPoetsch1997, author = {M{\"u}hle, Ralf-Udo and Burkart, Michael and P{\"o}tsch, Joachim}, title = {Die Niederung der unteren Havel : ein Feuchtgebiet von internationaler Bedeutung}, year = {1997}, language = {de} } @article{KruckenbergMuellerFreulingetal.2011, author = {Kruckenberg, Helmut and M{\"u}ller, Thomas and Freuling, Conrad and M{\"u}hle, Ralf-Udo and Globig, Anja and Schirrmeier, Horst and Buss, Melanie and Harder, Timm and Kramer, Matthias and Teske, Kathrin and Polderdijk, Kees and Wallschl{\"a}ger, Hans-Dieter and Hlinak, Andreas}, title = {Serological and virological survey and resighting of marked wild geese in Germany}, series = {European journal of wildlife research}, volume = {57}, journal = {European journal of wildlife research}, number = {5}, publisher = {Springer}, address = {New York}, issn = {1612-4642}, doi = {10.1007/s10344-011-0514-1}, pages = {1025 -- 1032}, year = {2011}, abstract = {In order to investigate the potential role of arctic geese in the epidemiology, the spatial and temporal spread of selected avian diseases, in autumn 2002, a virological and serological survey designed as capture-mark-resighting study was conducted in one of the most important coastal resting sites for migratory waterfowl in Germany. Orophatyngeal, cloacal swabs and blood samples were collected from a total of 147 birds comprising of three different arctic geese species including White-fronted Goose (Anser albifrons), Tundra Bean Goose (Anser fabalis rossicus), Pink-footed Goose (Anser brachyrhynchus) as well as from 29 non-migratory Canada Geese (Branta canadensis). Altogether, six adeno-like viruses (ALV; 95\% CI, 1.74-9.92\%) and two avian paramyxoviruses (APMV-4; 95\% Cl, 0.19-5.53\%) were isolated mainly from juvenile White-fronted Geese. In addition, four Canada Geese were infected with lentogenic APMV-1 (95\% CI, 3.89-31.66\%) at the date of sampling. No avian influenza viruses, reo-like viruses could be isolated despite serological evidence. Likewise, no evidence of current or previous infection by West Nile virus was found. Of the 147 birds tagged in the following years, 137 birds were resighted between 2002 and 2008 accumulating to 1925 sightings. About 90\% of all sightings were reported from the main wintering and resting sites in Germany and The Netherlands. Eight of the resighted geese were virus positive (ALV and APMV-4) at the time point of sampling in 2002.}, language = {en} } @article{SchulzMuehleWilke1999, author = {Schulz, R. and M{\"u}hle, Ralf-Udo and Wilke, Thomas}, title = {Zur Odonatenfauna des einstweilig gesicherten Teichgebietes Lakoma}, year = {1999}, language = {de} } @article{HlinakMuellerKrameretal.1999, author = {Hlinak, Andreas and M{\"u}ller, Thomas and Kramer, Matthias and M{\"u}hle, Ralf-Udo and Liebherr, Helga and Ziedler, Klaus}, title = {A descriptive analysis of the potenrial association between migration patterns of bean and white-fronted geese and the occurence of newcastle disease outbreaks in domestic birds}, issn = {0005-2086}, year = {1999}, abstract = {Sightings and migration patterns of 65 bean and 65 white-fronted geese are reported. These geese were tagged and serologically screened. 19 of the 53 birds sighted had serologic evidence of Newcastle Disease. The migration patterns of the wild geese provided further evidence that the main resting and wintering sites of migratory waterfowl are likely to be important for the inter- and intraspecies transmission of avian diseases.}, language = {en} } @misc{SchatzOhlendorfBusseetal.2013, author = {Schatz, Juliane and Ohlendorf, Bernd and Busse, Peter and Pelz, Gerrit and Dolch, Dietrich and Teubner, Jens and Encarnacao, Jorge A. and M{\"u}hle, Ralf-Udo and Fischer, M. and Hoffmann, Bernd and Kwasnitschka, Linda and Balkema-Buschmann, Anne and Mettenleiter, Thomas Christoph and M{\"u}ller, T. and Freuling, Conrad M.}, title = {Twenty years of active bat rabies surveillance in Germany}, series = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, number = {533}, issn = {1866-8364}, doi = {10.25932/publishup-41514}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-415140}, pages = {12}, year = {2013}, abstract = {In Germany, active bat rabies surveillance was conducted between 1993 and 2012. A total of 4546 oropharyngeal swab samples from 18 bat species were screened for the presence of EBLV-1- , EBLV-2- and BBLV-specific RNA. Overall, 0 center dot 15\% of oropharyngeal swab samples tested EBLV-1 positive, with the majority originating from Eptesicus serotinus. Interestingly, out of seven RT-PCR-positive oropharyngeal swabs subjected to virus isolation, viable virus was isolated from a single serotine bat (E. serotinus). Additionally, about 1226 blood samples were tested serologically, and varying virus neutralizing antibody titres were found in at least eight different bat species. The detection of viral RNA and seroconversion in repeatedly sampled serotine bats indicates long-term circulation of the virus in a particular bat colony. The limitations of random-based active bat rabies surveillance over passive bat rabies surveillance and its possible application of targeted approaches for future research activities on bat lyssavirus dynamics and maintenance are discussed.}, language = {en} }