Research

Funding: DFG Zi 345/27-1, 328.407 EUR

Project Details:
The aim of this project is to explore for the first time the processes underlying vocal flexibility of a highly vocal and phylogenetically basal primate across development. Previous research of our group revealed that the mouse lemur, a phylogenetically basal primate, exhibits an unexpectedly high degree of vocal flexibility in early ontogeny, which decreases in further development. Our project proposes three different and interrelated work packages by which we will address major components of these unexplored processes. The presence and role of babbling and vocal turn-taking during development, as well as potential determinants, modifying vocal output during development, will be assessed by early and dense sampling of vocal production and standardized bioacoustic and videografic behavioral approaches, using a dataset of 26 developing infants and their 13 mothers. Machine learning, including deep neural network approaches, will be applied to investigate the extent to which the dynamics of vocal development and potential rules can be assessed automatically. Excised larynx experiments and related anatomical and MicroCT-studies of the vocal tract as well as high-speed videorecordings of mouth and tongue movements during vocal production will be performed to uncover the mechanics of vocal production and potential biomechanical constraints in vocal flexibility. Integrating of datasets will allow the validation of the respective methods. The project provides an important empirical basis for comparative research on mammalian vocal communication and contributes to unravel the evolutionary roots of vocal flexibility in primate communication as an important building block for the evolution of human speech and language.

Results:

e.g.,

 

Langehennig-Peristenidou A, Scheumann M (2024). Sex differences in the impact of social relationships on individual vocal signatures in grey mouse lemurs (Microcebus murinus). Philosophical Transaction of the Royal Society B, 379, 20230193. DOI:10.1098/rstb.2023.0193.

 

Langehennig-Peristenidou, A.; Romero-Mujalli, D.; Bergmann, T.; Scheumann, M. (2023). Features of animal babbling in the vocal ontogeny of the gray mouse lemur (Microcebus murinus). Scientific reports, 13(1), 21384.

 

Romero-Mujalli, D.; Bergmann, T.; Zimmermann, A.; & Scheumann, M. (2021). Utilizing DeepSqueak for automatic detection and classification of mammalian vocalizations: a case study on primate vocalizations. Scientific reports, 11(1), 1-15.

 

Scheumann, M.; Linn, S.; Zimmermann, E. (2017). Vocal greeting during mother-infant reunions in a nocturnal primate, the gray mouse lemur (Microcebus murinus). Scientific Reports 7: 10321. DOI: 10.1038/s41598-017-10417-8.

Cooperation Partners:

Prof. Coen Elemans (Institute of Biology, University of Southern Denmark, Odense, Denmark)

Prof. Tecumseh Fitch and Christian Herbst, PhD (Department of Cognitive Biology, University of Vienna, Vienna, Austria)

Prof. Axel Zimmermann (University of Aalen, Aalen, Germany)

Dr. Roland Frey (Leibniz Institut für Zoo- und Wildtierforschung, Berlin, Germany)

Project Details:
-

Cooperation Partners:

Zentrum für systemische Neurowissenschaften (ZSN), Hannover

Institut für Neuroimmunologie und Multiple-Sklerose-Forschung (IMSF) der Universitätsmedizin Göttingen, Göttingen

Project Details:
Helminth infections influence animal health and thus also production parameters in ruminants. In the course of this project, epidemiological investigations and modelling will provide new insights into the distribution and infection dynamics of lungworms, gastrointestinal worms and liver fluke. At the same time, the influence of these parasitoses on production parameters will be determined and innovative control strategies evaluated.

Results:

Teschner, V., Zablotski, Y., Knubben-Schweizer, G., Bootz, F., Strube, C., Wenzel, C. (2025) Impact of the rumen fluke Calicophoron daubneyi on milk production parameters, β-hydroxybutyrate, fertility and feces consistency in southern German dairy cows. Veterinary Parasitology: Regional Studies and Reports 58, 101200

 

Leinmueller, M., Adler, F., Campe, A., Knubben-Schweizer, G., Hoedemaker, M., Strube, C., Springer, A., Oehm, A.W. (2024) Animal health as a function of farmer personality and attitude: Using the HEXACO model of personality structure to predict farm-level seropositivity for Fasciola hepatica and Ostertagia ostertagi in dairy cows. Frontiers in Veterinary Science 11, 1434612

 

Oehm, A.W., Leinmueller, M., Zablotski, Y., Campe, A., Hoedemaker, M., Springer, A., Jordan, D., Strube, C., Knubben-Schweizer, G. (2023) Multinomial logistic regression based on neural networks reveals inherent differences among dairy farms depending on the differential exposure to Fasciola hepatica and Ostertagia ostertagi. International Journal for Parasitology 53, 687-697

 

Vande Velde, F., Hektoen, L., Phythian, C.J., Rinaldi, L., Bosco, A., Hinney, B., Gehringer, M., Strube, C., May, K., Knubben-Schweizer, G., Martins, O.M.D., Mateus, T.L., Simion, V.E., Charlier, J., Bartley, D.J., Claerebout, E. (2023) Understanding the uptake of diagnostics for sustainable gastrointestinal nematode control by European dairy cattle farmers: a multi-country cross-sectional study. Parasite 30, 4

 

Vanhecke, M., Charlier, J., Hamdi, R., Duchene, F., Strube, C., Claerebout, E. (2022) Associations between Dictyocaulus viviparus bulk tank milk seropositivity correlated with meteorological variables. International Journal for Parasitology 52, 659-665

Cooperation Partners:

Prof. Dr. G. Knubben-Schweizer, Ludwig-Maximilians-Universität München

Prof. Dr. Edwin Claerebout, Ghent University

Project Details:
Monitoring the epidemiology and prevalence of parasite infections in livestock and companion animals will contribute to a better knowledge of parasite distribution and improved control strategies. Furthermore, new diagnostics will be developed or existing ones improved.

Results:

Rüster, V., Lückemann, A.K., Wittmann, M., Strube, C., Bartels, T. (2023) Successful long-term control of poultry red mite (Dermanyssus gallinae) infestations in floor-kept laying hens via integrated pest management - a case report. Parasitology Research 122, 2549-2555

 

Rüster, V., Werner, H., Wieneke, S., Avramidis, G., Ten Bosch, L., Krause, E.T., Strube, C., Bartels, T. (2022) Short-time cold atmospheric pressure plasma exposition can kill all life stages of the poultry red mite, Dermanyssus gallinae, under laboratory conditions. Experimental and Applied Acarology 88, 139-152

 

Vismarra, A., Schnyder, M., Strube, C., Kramer, L. Colombo, L., Genchi, M. (2023) Diagnostic challenges for Aelurostrongylus abstrusus infection in cats from endemic areas in Italy. Parasites & Vectors 16, 187

 

Hauck, D., Raue, K., Blazejak, K., Hannah, R.M., Elsmore, D.A., Pantchev, N., Strube, C. (2023) Evaluation of a commercial coproantigen immunoassay for the detection of Toxocara cati and Ancylostoma tubaeforme in cats and Uncinaria stenocephala in dogs. Parasitology Research 122, 185-194

 

Waindok, P. Raulf, M.-K., Strube, C. (2022) Potentials and challenges in the isolation and detection ascarid egg in complex environmental matrices. Food and Waterborne Parasitology 28, e00174

Cooperation Partners:

Prof. Dr. M. Schnyder, Universität Zürich, Schweiz

Prof. Dr. D. Traversa, Universität Teramo, Italien

Project Details:
Surveys on the epidemiology or prevalence of helminth infections in wildlife will contribute to a better knowledge of parasite distribution and help implementing prevention strategies in terms of the One Health concept. Furthermore, the evaluation of new diagnostic tools will improve health monitoring in wildlife.

Results:

Bisterfeld, K., Raulf, M.-K., Waindok, P., Springer, A., Lang, J., Lierz, M., Siebert, U., Strube, C. (2022) Endoparasites of peritoneal organs and skeletal muscles of the European wildcat (Felis silvestris) in Germany. Parasite & Vectors 17, 473

 

Schütte, K., Springer, A., Brandes, F., Reuschel, M., Fehr, M., Strube, C. (2024) Ectoparasites of European hedgehogs (Erinaceus europaeus) in Germany and their health impact. Parasites & Vectors 17, 2

 

Rehbein, S., Jůnková Vymyslická, P., Peterka, T., Strube, C., Visser, M., Mayr, S., Lackerschmid, J. (2024) Calicophoron daubneyi (Paramphistomidae) in deer of the ?umava National Park, Czech Republic - Consequence of prevalent rumen fluke infection in cattle. Veterinary Parasitology: Regional Studies and Reports 50, 101012

 

Bisterfeld, K., Raulf, M.-K., Waindok, P., Springer, A., Lang, J., Lierz, M., Siebert, U., Strube, C. (2022) Cardio-pulmonary parasites of the European wildcat (Felis silvestris) in Germany. Parasite & Vectors 15, 452

 

Waindok, P., Raue, K., Grilo, M., Siebert, U., Strube, C. (2021) Predators in northern Germany are reservoirs for parasites of One Health concern. Parasitology Research 120, 4229-4239

Funding: EU-Interreg, Bavarian Nordic, 270.000 EUR

Project Details:
Ticks transmit various human and animal pathogens. With regard to pathogens, the vector function of ticks for the causative agent of Lyme borreliosis (Borrelia burgdorferi sensu lato complex), human and animal granulocytic anaplasmosis and tick-borne encephalitis (TBE virus) is of particular importance. Studies on the abundance and distribution of ticks and their pathogens are therefore essential for assessing the One Health risk. Regarding tick-transmitted pathogens, this project collects data not only for Germany but also at the international level.

Results:

Rapp, J., Springer, A., Strube, C. (2024) Ixodes ricinus ticks survive flooding.  Ticks and Tick-Borne Diseases 15, 102417

 

Springer, A., Jordan, D., Höltershinken, M., Barutzki, D., Strube, C. (2024) Endemisation and management of Babesia divergens on a beef production farm. Current Research in Parasitology & Vector-Borne Diseases 6, 100188

 

Springer, A., Lindau, A., Probst, J., Fachet, K., Schäfer, I., Dobler, G., Mackenstedt, U., Strube, C. (2024) Germany-wide Citizen Science study reveals spread of Babesia canis-infected Dermacentor reticulatus ticks by dogs travelling within the country. Current Research in Parasitology & Vector-Borne Diseases 6, 100d187

 

Probst, J., Springer, A., Fingerle, V., Strube, C. (2024) Frequency of Anaplasma phagocytophilum, Borrelia spp. and coinfections in Ixodes ricinus ticks collected from dogs and cats in Germany. Parasites & Vectors 17, 87

 

Probst, J., Springer, A., Topp, A.-K., Bröker, M., Williams, H., Dautel, H., Kahl, O., Strube, C. (2023) Winter activity of questing ticks (Ixodes ricinus and Dermacentor reticulatus) in Germany − Evidence from quasi-natural tick plots, field studies and a tick submission study.  Ticks and Tick-Borne Diseases 14, 102225

Cooperation Partners:

Dr. O. Kahl, tick-radar GmbH

Prof. Dr. U. Mackenstedt, Universität Hohenheim

Dr. V. Fingerle, Nationales Referenzzentrum für Borrelien, Oberschleißheim

Prof. Dr. G. Dobler, Nationales Konsiliarlabor für FSME, München

Dr. L. Chitimia Dobler, Fraunhofer-Institut für Immunologie, Infektions- und Pandemieforschung

Project Details:
In diesem Projekt werden in einem transgenen Mausmodell die Folgen einer Sertoli Zell-spezifischen Deletion des Connexin43-Gens auf die Regulation der Spermatogenese u.a. mittels Microarray und qRT-PCR untersucht. Ausgewählte signifikant veränderte Kandidatengene aus den Mausversuchen werden zudem mit Hodenbiopsien von infertilen Männern verglichen.
Das Projekt bildet die Grundlage verschiedener Forschungsprojekte und Dissertationen sowie künftiger Drittmittelprojekte.
Geldgeber:
DFG, Klinische Forschergruppe KFO181, Male factor infertility due to impaired spermatogenesis
Volumen: 250000 ?

Results:

https://www.sciencedirect.com/science/article/pii/S1642431X17302371?via%3Dihub

Cooperation Partners:

Dr. Daniela Fietz, JLU Giessen

Klinische Forschergruppe Giessen + Marburg

http://www.uni-giessen.de/cms/fbz/fb11/forschung/forschergruppen/kfo_181/home

Project Details:
Ticks of the genus Ixodes transmit various human and animal pathogens. In this long-term project running since 2005, pathogen prevalence in ticks in the city of Hannover, Germany, is monitored to investigate potential effects of climate change. In addition to the infection status of the ticks, the tick density in the Hannover area will also be determined.

Results:

Glass, A., Springer, A., Raulf, M.-K., Fingerle, V. Strube, C. (2023) 15-year Borrelia prevalence and species distribution monitoring in Ixodes ricinus/inopinatus populations in the city of Hanover, Germany. Ticks and Tick-Borne Diseases 13, 102074

 

Glass, A., Springer, A., Strube, C. (2022) A 15-year monitoring of Rickettsiales (Anaplasma phagocytophilum and Rickettsia spp.) in questing ticks in the city of Hanover, Germany. Ticks and Tick-Borne Diseases 13, 101975

 

Hauck, D., Springer, A., Chitimia-Dobler, L., Strube, C. (2020) Two-year monitoring of tick abundance and influencing factors in an urban area (city of Hanover, Germany). Ticks and Tick-Borne Diseases 11, 101464

 

Blazejak, K., Raulf, M.-K., Janecek, E., Jordan, D., Fingerle, V., Strube, C. (2018) Shifts in Borrelia burgdorferi (s.l.) geno-species infections in Ixodes ricinus over a 10-year surveillance period in the city of Hanover (Germany) and Borrelia miyamotoi-specific Reverse Line Blot detection. Parasites & Vectors 11, 304

 

Blazejak, K., Janecek, E., Strube, C. (2017) A 10-year surveillance of Rickettsiales (Rickettsia spp. and Anaplasma phagocytophilum) in the city of Hanover, Germany, reveals Rickettsia spp. as emerging pathogens in ticks. Parasites & Vectors 10, 588

Cooperation Partners:

Dr. V. Fingerle, Nationales Referenzzentrum für Borrelien, Oberschleißheim

Project Details:
The project is aimed at the modelling and analysis of diverse veterinary epidemio-logic data arising from consultant work. The range of statistical modelling ap-proaches includes general models and special topics like logistic regression, zero inflation, non-linear regression (especially growth curves), cluster analysis, contin-gency table analysis and multi-block redundancy analysis (multi-factorial and multi-variate linear regression analysis).

Results:

Kreienbrock L, Pigeot I, Ahrens W.

Epidemiologische Methoden. Berlin: Springer Spektrum; 5. Auflage 2012.

ISBN: 978-3-8274-2333-7

 

Berke, O. Modified median polish kriging and its applica-tion to the Wolfcamp-Aquifer data.

Environmetrics. 2001;12(8):731-48.

 

Kreienbrock L, Broll S. Methodische Aspekte zur Qualitätssicherung veteri-närepidemiologischer Studien. [Methodologic aspects of quality assurance in veterinary epi-demiological studies].

Dtsch Tierarztl Wochenschr. 1999 Sep;106(9):381-5.

Cooperation Partners:

- Fachbereich Statistik, Universität Dortmund

- Leibniz-Institut für Epidemiologie, Bremen

- Hochschule Hannover

- Department of Population Medicine, University of Guelph

Funding: LKN, 5.885 EUR

Project Details:
Since 2002, ITAW has been conducting aerial surveys for harbour porpoises in the EEZ and the 12sm zone of the German North Sea. A dedicated monitoring of harbour porpoises in the North Sea and Baltic Sea has been carried out in projects of the Federal Agency for Nature Conservation (BfN) since 2008. Within the framework of this survey and monitoring, valuable data series on the spatio-temporal occurrence and density of harbour porpoises could be collected including the area of the whale sanctuary in the Schleswig-Holstein Wadden Sea National Park.
ITAW also has proven expertise in bioacoustics and acoustic monitoring of cetaceans. Porpoise click detectors (PODs) have already been used in numerous projects to study harbour porpoise habitat use. The LKN POD monitoring has been operated by ITAW since 2011 and data on acoustic harbour porpoise activity could also be collected in the area of the whale sanctuary in the Schleswig-Holstein Wadden Sea.
The aim of the project is to update a previous report on the importance of the small whale sanctuary as a habitat for harbour porpoises for feeding and as a calving and breeding area, using most recent data.