Rheinischen Friedrich-Wilhelms-Universität Bonn

Regularly, starting in SS 2017OEP-Free-1U: Zoogeography and ecology of marine organisms in tropical habitats (with an excursion to the Red Sea, Dahab/Egypt, together with H. Bleckmann)
SS 2013 – SS 2018OEP-Free-1G, Ecology and zoogeography of the Pannonian area, with a field trip to the Lake Neusiedl / Austria, Hungary (seminar, practical, excursion, together with W. Böhme and C. Koch, discontinued)
Regularly, starting in WS 2011/2012OEP-Free-1O, Patterns and Processes Shaping Biodiversity (seminar, together with F. Herder)
 OEP-Free-IND, Introduction to Scientific Programming in R (seminar/practical)
 OEP-Free-IND, Introduction to GIS / species distribution modeling (seminar/practical)
Regularly, starting in WS 2010/2011OEP-Free-1D, Evolution, and biodiversity of lower vertebrates (lecture/practical, together with F. Herder, and T. Ziegler)
 WS 2010/2011OEP-Free-1C, Distribution patterns, speciation and phylogenetics of vertebrates in the Palaeotropics (seminar, together with R. van den Elzen and F. Herder, discontinued)
 OEP-WP27 Student´s research projects (individual practicals)
WS 2011/20127010100212 Introduction to Zoology (lecture together with W. Böhme and F. Herder)
SS 2011Introduction to Species Distribution Modelling (internal practical ZFMK)

Trier University

WS 2010/2011LV 65531, Evaluating biodiversity (seminar)
WS 2009/2010LV 65531, Information search and management (lecture/practical)
 LV 65800, Principles of chorology (practical within it the topic Ecological Niche Modeling only; together with S. Lötters)
 LV 65808, Vertebrates II (amphibians) (lecture/practical within it the topic bioacoustics only)
SS 2009Biogeography of Africa (seminar together with S. Lötters)
 LV 65512, Diversification within the Amazon and Congo basin (seminar together with S. Lötters)
 LV 65808, Vertebrates II (amphibians) (lecture/practical within it the topic bioacoustics only)
 LV 65502, Principles of chorology (lecture/practical within it the topic Ecological Niche Modeling only; together with S. Lötters)

Universidade Estadual de Santa Cruz (UESC), Brazil

SS 2022 “Redação científica para zoólogos” (scientific writing for zoologists), lecture/practical together with M. Solé
WS 2020/2021 OEP-Free-1D, Evolution, and biodiversity of lower vertebrates (joint lecture/practical at UESC and ZFMK, together with F. Herder, and T. Ziegler)
SS 2010Ecologia, sistemática e conservação de anfíbios [Ecology, systematics and conservation of amphibians] (lecture/practical together with M. Solé)

Advised thesis

Ongoing thesis

Altenhofen, J. Bachelor thesis

How does the Olympic village effect translate in a spatial sorting bias at the invasion front of Xenopus laevis promoting colonization success? A simulation study.

Baral, S. PhD thesis

Landscape genetics improve conservation planning in selected taxa in Tibet.

Chiacchio, M. PhD thesis

Impacts of winter tourism on habitat quality for selected amphibian and reptile species.

Clement, V. PhD thesis

Establishing an extensive ecological profile of a population is of utmost importance in conservation efforts and landscape management. The sand lizard (Lacerta agilis LINNAEUS, 1758) is a widely spread Eurasian species that prefer open to half-open habitats. This includes areas in close proximity to humans like road and railroad edges or quarries. Therefore, the species is often victim of disturbances, destruction, or fragmentation of its habitat and therefore subject to a lot of compensative measures. These measures are most effective when matched to the ecology of the population in question. Hence, the aim of this project is to establish an efficient method to assess ecology of a population of small animals using a sand lizard population in the Dellbrücker Heide in Cologne as an example. For this, classic visual encounter studies are used in concert with radio telemetry to assess home ranges and high-resolution drone recordings to assess habitat preference in order to assemble an as complete as possible ecological profile. The profile includes animal activity in relation to weather and temperature, home range density, and habitat preference.

Ginal, P. PhD thesis

Invasion biology of amphibians and reptiles: a macroecological perspective

Grundmann, D. PhD thesis

Impacto da exposição a diferentes temperaturas sobre a obtenção de alimento e desenvolvimento em Boa constrictor Linnaeus, 1758. UESC, Brazil

Heckmann, J. H. Master Thesis.

Evolution of adhesive toe pads in Cyrtodactylus.

Liz, A. V. PhD thesis

Comparative phylogeography of the Sahara-Sahel: integrating spatial and temporal approaches to understand biodiversity dynamics in deserts and arid regionsDescription of project: This work aims to understand the biogeographic and biodiversity dynamics driven by Plio-Pleistocene dry/humid climatic cycles in the Sahara-Sahel desert. The main objectives are to test: i) climate-induced allopatric speciation as the main diversification agent; ii) biodiversity refugia and dispersal corridors; iii) relationships between genetic diversity and environmental-dependent taxa persistence in refugia.

Meyers, E. M. PhD thesis

The critically endangered Angel Shark (Squatina squatina) has suffered a vast fragmentation of its former distribution range, leaving the Canary Islands as a unique “hotspot” where this Angel Shark can be regularly encountered.

Nay Win Kyaw Master Thesis

Home range and spatial habitat use in Burmese star tortoise (Geochelone platynota

Noordermeer, C. Master Thesis

Toe pad evolution in Australian Geckos 

Tan, W. C. PhD thesis

Fragmentation of the natural environment has contributed to major biodiversity loss in South East Asia. Reptiles represent a significant biomass and occupy important functions in our ecosystem. However, these organisms are highly sensitive to relatively minor changes in temperature and habitat alteration. In this study, we will investigate the effects of habitat fragmentation and potentially climate change on agamids at several sites in Southeast Asia. We will identify the species richness of agamids, their habitat use, and their diet.

Sperling, K. Master thesis

Assessing the conservation status of Ethiopian herpetofauna: is the network of protected areas sufficient?

Vila Nova, M. F. PhD thesis

Bothrops jararacussu is the largest species within the genus Bothrops and one of which has the venom more toxic to humans. Its distribution covers Argentina, Bolivia, Paraguay and four Brazilian states: Rio Grande do Sul, Minas Gerais and Bahia. According to the Official List of Fauna Species Endangered by the State of Bahia, Brazil, this species is endangered. For this species, little information is known about activity, environment use, feeding ecology and standard displacement under natural conditions.

Vinícius dos S. A. Vieira, M. PhD thesis

How does climate change affect biological interactions? (UESC) Dissertation



Deiß, F.: Microclimatic specific performance of the chytrid fungus Batrachochytrium salamandrivorans: a very high resolution spatial conservation assessment within the preferred habitats of Salmandra salamandra (Linnaeus, 1758) in western Germany. Master Thesis

Harrer, S.: Identifying priority areas for conserving Vietnams Ichthyofauna. Bacherlor Thesis

Rech, I.: Geckos in zoos – conservation breeding or show-off keeping? Master Thesis

Reichert, M.: Developmental ecology of Discoglossus sp. tadpoles: does density affect growth rates?Bachelor Thesis


Prieto Ramirez, A. M.: Understanding the impact of habitat fragmentation on Lacerta viridis across its range. PhD thesis.

Schmitz, L.: Seasonal variations in microhabitat use in Lacerta agilis? Master thesis


Macedo, E. F. Impacto potencial das mudanças climáticas sobre a distribuição do gênero Ophiodes Wagler, 1828 (Squamata: Anguidae) e implicações para a conservação das espécies. Master thesis – Universidade Estadual de Santa Cruz

Schluckebier, R.: Spatial Habitat Use in Lacerta agilis Linnaeus, 1758. Master thesis


Nania, D.: Niche evolution and potential distribution of Lepidodactylus lugubris. Master thesis

Pilch, T. T.: The scales of the soles of monitor lizards’ feet (Squamata: Varanidae: Varanus spp.) and their potentially adhesive property. Bachelor thesis

Platzen, J.: A method to evaluate the climatic profile of a species by the example of Lacerta agilis LINNAEUS, 1758, in the Dellbrücker Heide. Master thesis

Villa Nova, M. F.: Padrões de diversidade de anfíbios ao longo de um gradiente altitudinal na Estação Ecológica de Wenceslau Guimarães, Sul da Bahia, Brasil. Master thesis (UESC, Brazil)


Behr, N.: Assessing the status of poorly known amphibians. Are they really local endemics or just a sampling artifact? Master thesis

Büschen, J.: Developmental ecology of Dendropsophus marmoratus. Bachelor thesis

Demand, T.: Phenotypic plasticity and thermal limits in amphibians. Bachelor thesis

Jacken, A.: Which species are in captive breeding projects in Zoos? Master thesis

Mahnke, A.: Ultrastructure of the adhesive apparatus in Phelsuma spp. Master thesis

Von Oy, R.: Using SDMs to assess the invasion potential of reptiles. Bachelor thesis

Rao, S.: Assessing the distribution and conservation status of Squatina squatina on the Canary Islands. Bachelor thesis


Clement, V. F.: Habitat Assessment and Behavior of Lacerta agilis LINNAEUS, 1758 in the Wahner Heide – An Ecological Profile of a Widespread Species in the Center of its Distribution. Master thesis

Galunder, K.: Developmental ecology and larval staging in Polypedates otilophus (Boulenger, 1893) (Anura: Rhacophoridae). Bachelor thesis

Ihlow, F.: Herpetodiversity of Asia with a Special Focus on the Taxonomy, Ecology, and Distribution of Southeast Asian Chelonians. PhD thesis

Plagge, L.: Temperature dependent performance in larvae of Ambystoma mexicanum (Shaw, 1798) (Caudata: Ambystomatidae). Bachelor thesis

Reich, A.: Field study on thermoregulation of Lacerta agilis (Squamata: Lacertidae) in the NSG Wahner Heide. Master thesis

Sönnichsen, K.: Comparative feeding ecology and morphometrics of Lyciasalamandra species (Amphibia: Salamandridae) from Anatolia and Greece. Master thesis

Stupp, S.: Reexamination of Paul Müller’s collection of anurans from the Island of São Sebastião (Atlantic Rainforest of São Paulo, Brazil) and comparison with recent herpetofauna of this and comparable regions. Bachelor thesis


Behr, N.: Comparative larval development and behavioral thermoregulation in the Yellow-Bellied toad Bombina variegata (Linnaeus, 1758) (Anura: Bombinatoridae). Bachelor thesis

Engler, J. O.: Entwicklung und Anwendung eines kombinierten Methodenansatzes zur Analyse landschaftsspezifischer Effekte auf den Genfluss terrestrischer Organismen. PhD thesis

Drüke, Y.: Comparative analysis of the feeding ecology of the gecko Hemidactylus mabouia in its invasive and native range. Bachelor thesis

May, G.: Using spatial data in R: Modeling potential dispersal pathways of an invasive amphibian. Bachelor thesis

Weishaar, M.: Biogeography and environmental niche evolution in the genus Pelusios. Master thesis


Ferreira, R. B.: Impacts on threatened amphibians in a Brazillan Atlantic Forest mosaic. PhD thesis (scientific committee member, Department of Wildland Resources and Ecology Center, Utah State University, USA)

Fonseca, E. E.: Potencial invasor de serpentes exóticas no Brasil. Master thesis (Universidade Estadual de Santa Cruz)

Hörnes, D.: Herpetofauna of the Parque Nacional Cordillera Azul, Peru. Master thesis

Klein, B.: Entwicklungsbiologie ausgewählter Pfeilgiftfrösche der Gattung Ranitomeya. Master thesis

Krings, M.: Tadpole descriptions of different poison dart frogs of the genus Ranitomeya (Anura: Dendrobatidae) and their morphological comparison. Master thesis

Lemm, L.: Environmental niche evolution in the amphibian family Mantidactylidae. Master thesis

Linden, J. K.: Assessing biogeographical patterns in American freshwater turtles using a node-based analysis technique. Master thesis

Meyers, E. M.: Patterns in the distribution, population structure and habitat use of the Angel Shark (Squatina squatina). Master thesis

Prokant, F.: Phylogeny of the Grass Snake (Natrix natrix) based on Integrative Taxonomy. Master thesis

Vogt, S.: Invasionsbiologie von Xenopus laevis: Charakteriserung des Beutespektrums. Master thesis


Mödrath, C.: Habitatnutzung von Großsäugern in der ariden Otjimbingwe Region von Namibia. Master thesis

Reich, A.: Behavioral thermoregulation of tropical dart-poison frog larvae of the genus Epipedobates (Anura: Dendrobatidae) across multiple developmental stages. Bachelor thesis

Marques da Siva, R.: Compositcao, distrubuicao e historia natural da cumunidade de serpentes do litoral notre da Bahia, Brasil. Master thesis (Universidate Estadual de Santa Cruz)

Kurth, M.: Vergleichende Reproduktionsbiologie und Larvalentwicklung von Epipedobates anthonyi / E. tricolor. Bachelor thesis


Flecks, M.: A systematic revision of the African members of the genus Lygodactylus Gray, 1864. Diploma thesis

Günther, F.: Which importance has the Red River in Vietnam for the distribution of Goniurosaurus (Squamata: Eublepharidae) and Cyrtodactylus (Squamata: Gekkonidae)? A Survey based on SDMs and niche comparisons. Master thesis

Lierz, T.: Räumlich explizite Analysen der morphologischen Variation iberischer Lacertiden. Master thesis

Pertel, W.: Predicting the potential distribution of amphibians in the central corridor of the Atlantic rainforest. Master (Universidate Estadual de Santa Cruz)


Dubke, M.: Taxonomy and Zoogeographie of Ptychadena (Boulenger, 1817): Quantity of cryptic batrachodiversity? Bachelor thesis

Hörnes, D.: Current and past diversity patterns of North American chelonians: is there evidence of historical community reshuffling? Bachelor thesis

Nekum, S.: Kartierung und potentielle Verbreitung der Zauneidechse Lacerta agilis im Stadtgebiet von Köln. Diploma thesis (co-supervisor)


Hahn, G.: The potential distribution of Varanus niloticus and V. ocellatus. Diploma thesis (Trier University, co-supervisor)

Weinsheimer, F.: The herpetofauna of the Kimboza Forest with special focus on the Turquoise Dwarf Gecko (Lygodactylus williamsi). Diploma thesis (co-supervisor)

Weinmann, T.: Comparisons of climate niches in Neotropical poison frogs (Dendrobates). Diploma thesis (Trier University, co-supervisor)



Zoologisches Forschungsmuseum Alexander Koenig

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