Der Bereich der Audiovisuellen Biodiversitätsforschung (AVBF) beschäftigt sich mit der Beschreibung, Erforschung und Beobachtung von Biodiversität durch bioakustische Methoden und Kamerafallen.
Biomonitoring, Citizen Science, KI und Naturschutz
An der Forschungsstation Chiquitos in Bolivien erproben und entwickeln wir neue Methoden für die Langzeitbeobachtung von Biodiversität. Der erste Schritt ist das reine Sammeln, Dokumentieren und Archivieren der Daten mit autonomen Geräten wie Langzeitaudiorekordern und Kamerafallen. Im zweiten Schritt kommen Analysemethoden, zum Beispiel mit Bürgerwissenschaften und Künstlicher Intelligenz, um diese Big Data überhaupt nutzbar zu machen. Im letzten Schritt bearbeiten wir verschiedene biologische und ökologische Fragen, zum Beispiel über die lokale Biodiversiät und Biodiversitätsverlust.
Integrative Taxonomie der neotropischen Anuren
Bioakustische Daten und Methoden können heute besonders vermehrt dazu benutzt werden, Biodiversität (vor allem Amphibien) zu erfassen und ggf. neue Arten zu beschreiben (alpha-Taxonomie). Durch die Integration verschiedener Methoden, wie Morphologie, Bioakustik und molekulare Daten, suchen wir nach Kandidatenarten bei neotropischen Fröschen.
Field bioogy, biodiversity and biodiversity loss, bioacoustics, citizen science, conservation, evolutionary biology and human wildlife-conflicts.
Scientific articles
2021
Fouquet, A., Marinho, P., Réjaud, A., Carvalho, T. R., Caminer, M. A. Jansen, M., Rainha, R., Rodrigues, M. T., Werneck, F. P. Lima, A. P. Hrbek, T. , Giaretta, A. A., Venegas, P. J., Chávez, G. & S.Ron (2021) Systematics and biogeography of the Boana albopunctata species group (Anura, Hylidae), with the description of two new species from Amazonia, Systematics and Biodiversity, 19:4, 375-399, DOI: 10.1080/14772000.2021.1873869
2020
Emmrich M, Vences M, Ernst R, Köhler J, Barej MF, Glaw F, Jansen M, Rödel M-O (2020) A guild classification system proposed for anuran advertisement calls. Zoosystematics and Evolution 96(2): 515-525. https://doi.org/10.3897/zse.96.38770
Pansonato A, Motta A, Cacciali P, Haddad CFB, Strüssmann C, Jansen M (2020) On the identity of species of Oreobates (Anura: Craugastoridae) from central South America, with the description of a new species from Bolivia. Journal of Herpetology54 (4): 393–412. doi: https://doi.org/10.1670/20-001
Jansen, M, Engler, M, Blumer, LM, Rumiz, DI, Aramayo, JL, Krone, O. (2020) A camera trapping survey of mammals in the mixed landscape of Bolivia’s Chiquitano region with a special focus on the jaguar. CheckList 16(2): 323-335.
Azevedo, JAR, Guedes, TB, de C. Nogueira, C, Passos, P, Sawaya, RJ, Prudente, ALC, Barbo, FE, Strüssmann, C, Franco, FL, Arzamendia, V, Giraudo, AR, Argôlo, AJS, Jansen, M, Zaher, H, Tonini, JFR, Faurby S & Antonelli, A (2020): Museums and cradles of diversity are geographically coincident for narrowly distributed Neotropical snakes: Ecography 43(2): 328-339
2019
Romero-Muñoz, A. Jansen, M., Nuñez, A. M., Almonacid, R. V., Kümmerle, T. (2019): Fires scorching Bolivia´s Chiquitano forest. Science 366, 6469: 1089.
Jansen, M., D. Santana, B. F. D. Teixeira & G. Köhler (2019) A new striped species of Dendropsophus (Anura: Hylidae) with a composite advertisement call and comments on the D. rubicundulus group. Vertebrate Zoology 69(3), DOI: 10.26049/VZ69-3-2019-01
2018
Bálint, M., Nowak, C., Márton, O., Pauls, S. U., Wittwer, C., Aramayo B., J. L., Schulze, A., Chambert, T., Cocchiararo, B. & Jansen, M. (2018): Accuracy, limitations and cost-efficiency of eDNA-based community structure assessments in tropical frogs. Molecular Ecology Resources. 18(6): 1415-1426. DOI: 10.1111/1755-0998.12934
Guedes TB, Sawaya RJ, Zizka A, Bérnil RS, Jansen M, Passos P, Prudente ALC, Cisneros-Heredia DF, Braz H, Nogueira CdC. & Antonelli A: Patterns, biases, and prospects in the distribution and diversity of Neotropical snakes. Global Ecol Biogeogr. 2018; 27:14–27. https://doi.org/10.1111/geb.12679
2017
Jörn Köhler, Martin Jansen, Ariel Rodríguez, Philippe J. R. Kok, Luís Felipe Toledo, Mike Emmrich, Frank Glaw, Célio F. B. Haddad, Mark-Oliver Rödel & Miguel Vences: The use of bioacoustics in anuran taxonomy: theory, terminology, methods and recommendations for best practice. Zootaxa, 4251, 1-124, 2017
Marcel A. Caminer, Borja Milá, Martin Jansen, Antoine Fouquet, Pablo J. Venegas, Germán Chávez, Andrew Chek, Santiago R. Ron: Systematics of the Dendropsophus leucophyllatus species complex (Anura: Hylidae): Cryptic diversity and the description of two new species. PLOS ONE | DOI:10.1371/journal.pone.0171785 March 1, 2017
2016
Jansen, M., A. Masurowa & R. B. O’Hara (2016): Temporal variation, duty cycle and absolute calling effort during sustained calling of Leptodactylus mystacinus (Anura: Leptodactylidae). Salamandra 52(4): 328-336.
Pansonato, A., A. C. Veiga-Menoncello, J. R. Mudrek, M. Jansen, S. M. Reco-Pimentel & I. A. Martins (2016): Two new species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) from eastern Bolivia and western Brazil. Herpetologica, 72(3): 235-255.
Jansen, M., M. Plath, F. Brusquetti & M. Ryan (2016): Asymmetric frequency shift in advertisement calls of sympatric frogs. Amphibian-Reptilia, 37: 137-152
2015
Schulze, A., Jansen, M. & G. Köhler (2015): Tadpole diversity of Bolivia`s lowland anuran communities: molecular identification, morphological characterization, and ecological assignment. Zootaxa, 4016(1):1-111.
2014
Gehara, M., Crawford, A. J., Orrico, V. G. D., Rodríguez, A., Lötters, S., Fouquet, A., Barrientos, L. S., Brusquetti, F., De la Riva, I., Ernst, R., Urrutia, G. G., Glaw, F., Guayasamin, J. M., Hölting, M., Jansen, M., Kok, P. J. R., Kwet, A., Lingnau, R., Lyra, M., Moravec, J., Pombal Jr., J. P., Rojas-Runjaic, F. J. M., Schulze, A., Celsa Señaris, J., Solé, M., Rodrigues, M. T., Twomey, E., Haddad, C. F. B., Vences, M. and Köhler J. (2014 ). High levels of diversity uncovered in a widespread nominal taxon: continental phylogeography of the Neotropical tree frog Dendropsophus minutus. 2014. Plos One, 10 September 2014.
Brusquetti, F., Jansen, M., C. Barrio-Amorós, Magno Segalla & C. F. B. Haddad (2014): Taxonomic review of Scinax fuscomarginatus (Lutz, 1925) and related species (Anura; Hylidae). Zoological Journal of the Linnean Society, 171, 4: 783-821
2012
Schulze, A. & M. Jansen: One species, two strategies? Oviposition site variation in a member of the Leptodactylus pentadctylus group (Amphibia: Anura: Leptodactylidae). Studies on Neotropical Fauna and Environment, 47, 183-191, DOI:10.1080/01650521.2012.71110
Jansen, M. & A. Schulze (2012): Molecular, morphology and bioacoustic data suggest Bolivian distribution of a large species of the Leptodactylus pentadactylus group (Amphibia: Anura: Leptodactylidae). Zootaxa, 3307, 35–47
2011
Jansen, M., R. Bloch, A. Schulze & M. Pfenninger (2011): Integrative inventory of Bolivia’s lowland frogs reveals hidden diversity. Zoologica Scripta, 40, 6, 567–583
2010
Mebs, D., M. Jansen, G. Köhler, W. Pogoda & G. Kauert: Myrmecophagy and alkaloid sequestration in amphibians: A study on Dendrobatidae (Ameerega picta) and Microhylidae (Elachistocleis) frogs. Salamandra 46(1): 11-15.#
2009
Jansen, M., A. Schulze, L. Werding & B. Streit (2009): Effects of extreme drought in the dry season on an anuran community in the Bolivian Chiquitano region. Salamandra 45(4): 233-238
Jansen, M., L. Gonzales & G. Köhler (2009): Description of a new species of Xenopholis (Serpentes: Colubridae) from the Cerrado of Bolivia with comments on Xenopholis scalaris in Bolivia. Zootaxa 2222: 31-45.
Schulze, A., Jansen, M. & G. Köhler (2009): Diversity and ecology of an anuran community in San Sebastián, Bolivia. Salamandra 45:75-90.
2007
Jansen, M., L. Gonzales & G. Köhler (2007): New species of Hydrolaetare (Anura: Leptodactylidae) from Bolivia with some notes on its natural history. Journal of Herpetology 41(4): 724-732.
2002
Jansen, M.: Zeckenbefall bei Lacerta agilis Linnaeus, 1758 und Zootoca vivipara Jacquin, 1787 im Spessart. Salamandra, Rheinbach 38(2): 85-94.
Jansen, M. & G. Köhler: Biogeografische Analyse der Herpetofauna von ausgewählten Hochlandgebieten Nicaraguas. Salamandra, Rheinbach, 38 (4): 269-286.
2001
Jansen, M. & G. Köhler: Ökologie des Mombacho-Salamanders, Bolitoglossa mombachoensis Köhler & McCranie, 1999, am Volcán Mombacho, Nicaragua (Caudata: Plethodontidae). Salamandra, Rheinbach, 37 (2): 83-98.
