Publications

J Schaer as first or last & corresponding author:

Timm L, SP Rosskopf, O Werb, J van Schaik & J Schaer. 2025. Europe-wide distribution and bat-host specific lineages in the malarial parasite Polychromophilus murinus revealed through genetic screening of bat flies. Infection, Genetics and Evolution 127, 105707 https://doi.org/10.1016/j.meegid.2024.105707

Kamani J, S Irene, AR Yakubu, FH Bwala, Y Nahum-Biala, EH Nnabuife, J Budaye, S Harrus, J Schaer. 2025. Vector abundance and genetic diversity of Anopheles mosquitoes collected in a laboratory-office complex in Vom, Nigeria: implications for vector control. Public Health Challenges. 22, 4(3):e70079. doi: 10.1002/puh2.70079

Tsague KJ, EM Bakwo-Fils, JP Atanga, DW Mbeng, L Palm, T Tchuinkam, J Schaer. 2024. Molecular detection of trypanosomes of the Trypanosoma livingstonei species group in diverse bat species in Central Cameroon. Parasitology Research 123, 280 https://doi.org/10.1007/s00436-024-08303-0

Werb O, Matuschewski K, Weber N, Hillers A, Garteh J, Jusu A, Turay BS, Wauquier N, Escalante AA, Pacheco MA, J Schaer. 2024. New member of Plasmodium (Vinckeia) and Plasmodium cyclopsi discovered in bats in Sierra Leone – nuclear sequence and complete mitochondrial genome analysis. International Journal for Parasitology 54(10), 475-484 https://doi.org/10.1016/j.ijpara.2024.05.002

Weber N, Nagy M, Markotter W, J Schaer, Puechmaille SJ, Sutton J, Dávalos LM, Dusabe M-C, Ejotre I, Brock Fenton M, Knörnschild M, López-Baucells A, Medellin RA, Metz M, Mubareka S, Nsengimana O, Teague O’Mara M, Racey PA, Tuttle M, Twizeyimana I, Vicente-Santos A, Tschapka M, Voigt CC, Wikelski M, Dechmann DKN and DM Reeder. 2023. Robust evidence for bats as reservoir hosts is lacking in most African virus studies: a review and call to optimize sampling and conserve bats. Biology Letters 19, 20230358 20230358.//doi.org/10.1098/rsbl.2023.0358

Thiombiano NG, Boungou M, Chabi BAM, Oueda A, Werb O, J Schaer. 2023. First investigation of blood parasites of bats in Burkina Faso detects Hepatocystis parasites and infections with diverse Trypanosoma spp. Parasitology Research 122, 3121–3129, https://doi.org/10.1007/s00436-023-08002-2

Bajić B, O Werb, I Budinski, J Blagojević, J Schaer, J van Schaik. 2023. Non-invasive investigation of Polychromophilus parasite infections in bat populations in Serbia using bat flies. Parasites & Vectors. 16:170. https://doi.org/10.1186/s13071-023-05786-1

Ejotre I, DM Reeder, K Matuschewski, R Kityo, J Schaer. 2022. Negative Perception of Bats, Exacerbated by the SARS-CoV-2 Pandemic, May Hinder Bat Conservation in Northern Uganda. Sustainability. 14(24), 16924. https://doi.org/10.3390/su142416924

Kamani J, YJ Atuman, DA Oche, A Shekaro, O Werb, I Ejotre, J Schaer. Molecular detection of Trypanosoma spp. and Hepatocystis parasite infections of bats in Northern Nigeria. Parasitology. 2022. https://doi.org/10.1017/S0031182022000890 

Tsague KJ, EM Bakwo-Fils, JP Atanga, NV Dongue, DW Mbeng, J Schaer, T. Tchuinkam. Hepatocystis and Nycteria (Haemosporida) parasite infections of bats in the Central Region of Cameroon. Parasitology. 2021. https://doi.org/10.1017/S0031182021001542

Chumnandee C, N Pha-obnga, O Werb, K Matuschewski, J Schaer. 2020. Molecular characterization of Polychromophilus parasites of Scotophilus kuhlii bats in Thailand. Parasitology. pp. 1 – 15. https://doi.org/10.1017/S003118202000222X

Ejotre I, DM Reeder, K Matuschewski, J Schaer. 2020. Hepatocystis. Trends in Parasitology. Review. https://doi.org/10.1016/j.pt.2020.07.015

Schaer J, W Boardman, A McKeown, DA Westcott, K Matuschewski, M Power. 2019. Molecular investigation of Hepatocystis parasites in the Australian flying fox Pteropus poliocephalus across its distribution range. Infection, Genetics and Evolution. 75, 103978. https://doi.org/10.1016/j.meegid.2019.103978

Atama N, S Manu, S Ivande, SP Rosskopf, K Matuschewski, J Schaer. 2019. Survey of Hepatocystis parasites of fruit bats in the Amurum forest reserve, Nigeria, identifies first host record for Rousettus aegyptiacus. Parasitology. 146 (12), 1550-1554. https://doi.org/10.1017/S0031182019000817

Rosskopf SP, J Held, M Gmeiner, B Mordmüller, P Matsiégui, I Eckerle, N Weber, K Matuschewski, J Schaer. 2019. Nycteria and Polychromophilus parasite infections of bats in Central Gabon. Infection, Genetics and Evolution. 68, 30-34. https://doi.org/10.1016/j.meegid.2018.11.022

Schaer J, L McMichael, AN Gordon, D Russell, K Matuschewski, SL Perkins, H Field, P Power. 2018. Phylogeny of Hepatocystis parasites of Australian flying foxes reveals distinct parasite clade. International Journal for Parasitology: Parasites and Wildlife. 7 (2), 207-212. https://doi.org/10.1016/j.ijppaw.2018.06.001

Schaer J, SL Perkins, I Ejotre, ME Vodzak, K Matuschewski, DM Reeder. 2017. Epauletted fruit bats display exceptionally high infections with a Hepatocystis species complex in South Sudan. Scientific Reports. 7, 6928. https://www.nature.com/articles/s41598-017-07093-z

Perkins SL and J Schaer. 2016. A Modern Menagerie of Mammalian Malaria. Trends in Parasitology. 32(10), 772–782. Review. https://doi.org/10.1016/j.pt.2016.06.001

Schaer J, DM Reeder, ME Vodzak, KJ Olival, N Weber, F Mayer, K Matuschewski, SL Perkins. 2015. Nycteria parasites of Afrotropical insectivorous bats. International Journal for Parasitology. 45(6): 375-384. doi: https://doi.org/10.1016/j.ijpara.2015.01.008

Schaer J, SL Perkins, J Decher, F Leendertz, J Fahr, N Weber, K Matuschewski. 2013. High diversity of West African bat malaria parasites and a tight link with rodent Plasmodium taxa. PNAS. 110(43): 17415-9. https://doi.org/10.1073/pnas.1311016110

J Schaer as co-author:

Veith Y, AL Wende, K Matuschewski, J Schaer, K Müller, B Bannert. 2023. Molecular characterization of Schellackia parasites in an urban population of Sand lizards (Lacertia agilis) from Berlin, Germany. Parasitology Research. https://doi.org/10.1007/s00436-023-07856-w

Kamani J, M Shand, A Shekaro, B Laminu, O Toyin, MS Abasiama, J Schaer, S Harrus. 2023. Mycoplasma wenyonii and Candidatus Mycoplasma Haemobos in pastoralists cattle in Nigeria. Acta Parasitologica, 68: 430-438. https://doi.org/10.1007/s11686-023-00683-0

Kamani J, J Schaer, Y Nachum-Biala, G Baneth, M Shand, S Harrus. 2023. Bartonella bovis in Cattle in Nigeria: Molecular Detection and the Analysis of Risk Factors. Israel Journal of Veterinary Medicine. 78(1): 24-33. http://www.ijvm.org.il/sites/default/files/bartonella_bovis_from_3book_vet_march_2023-7.pdf

Kamani J, J Schaer, AG Umar, JY Pilarshimwi, L Bukar, J González-Miguel, S Harrus. 2022. Molecular detection and genetic characterization of Anaplasma marginale and Anaplasma platys in cattle in Nigeria. Ticks and Tick-borne Diseases. 13(4): 101955. https://doi.org/10.1016/j.ttbdis.2022.101955

Puechmaille SJ, M Ar Gouilh, D Dechmann, B Fenton, C Geiselman, R Medellin, R Mittermeier, P Racey, DM Reeder, J Schaer, A Vicente-Santos, W Sechrest, L Viquez-R, N Weber. 2021. Misconceptions and misinformation about bats and viruses. International Journal of Infectious Diseases. 105: 606-607. 10.1016/j.ijid.2021.02.097

Galen S, J Borner, E Martinsen, J Schaer, CC Austin, C West, SL Perkins. 2018. The polyphyly of Plasmodium: Comprehensive phylogenetic analyses of the malaria parasites (order Haemosporida) reveal widespread taxonomic conflict. Royal Society Open Science. 5, 171780-171780. DOI: 10.1098/rsos.171780

Held J, M Gmeiner, B Mordmüller, P Matsiégui, J Schaer, I Eckerle, N Weber, K Matuschewski, S Bletz, F Schaumburg. 2016. Bats are rare reservoirs of Staphylococcus aureus complex in Gabon. Infection, Genetics and Evolution. 47, 118-120.  http://www.sciencedirect.com/science/article/pii/S156713481630510X

Decher J, A Hoffmann, J Schaer, RW Norris, B Kadjo, J Astrin, A Monadjem, R Hutterer. 2015. Bat diversity in the Simandou Mountain Range of Guinea, with the description of a new white-winged vespertilionid. Acta Chiropterologica. 17(2): 255-282. doi: http://dx.doi.org/10.3161/15081109ACC2015.17.2.003

Kelm DH, J Schaer, S Ortmann, G Wibbelt, JR Speakman, CC Voigt. 2008. Efficiency of facultative frugivory in the bat Glossophaga commissarisi: Can a nectar specialist mammal turn to fruits when the nectar runs dry? J Comp Physiol [B]. 178(8): 985-996. doi: https://doi.org/10.1007/s00360-008-0287-3

Preprints

Ingala M, Oliveira H, Frank LE, Hussain M, Kazam A, Becker DJ, Cummings C, Dalannast M, Kingston T, Krauel J, Mavian C, McKee CD, Perea S, Rivera-Villanueva AN, Schaer J, Speer K, Toshkova N, Tsang SM, Wray A, Bernard R, Borthwick S, Foster JT, Ul Hasan A, Wechuli D, Lauterbur ME. 2025. Bats in Habitats, Bats as Habitats: An integrative ecological framework for understanding synergistic interactions across levels of community organization. EcoEvoRxiv, https://doi.org/10.32942/X2RW59

Reports and Manuals

Weber N, J Schaer, J Fahr. 2011. Preliminary assessment of the bat fauna at Putu Iron Ore Mining concession, Liberia. Final Report to PIOM.

Hoffmann A, J Decher, F Rovero, J Schaer, C Voigt, G Wibbelt. 2010. Chapter 19 – Field Methods and Techniques for Monitoring Mammals In: Eymann, J. Degreef, J., Häuser, C., Monje, J.C., Samyn, Y. and VandenSpiegel, D. (eds). Manual on field recording techniques and protocols for All Taxa Biodiversity Inventories and Monitoring. Abc Taxa, Vol. 8 (Part 2): 482-529. http://www.abctaxa.be/volumes/volume-8-manual-atbi/chapter-19/Chapter_19.pdf

Decher J, A Hoffmann, B Kadjo, RW Norris, J Schaer. 2009. Small Mammal Baseline Study for The Rio Tinto Simandou Project, Guinea. Final Report to SNC Lavalin Environment Inc., Montreal. 99 pages.