A5070533142- Amphibian and Reptile Biology
- Animal Behavior and Reproduction
- Vector-borne infectious diseases
- Dermatological diseases and infestations
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Insect and Arachnid Ecology and Behavior
- Marine animal studies overview
- Plant and animal studies
- Species Distribution and Climate Change
- Mercury impact and mitigation studies
- Forest Ecology and Biodiversity Studies
- Identification and Quantification in Food
- Animal Vocal Communication and Behavior
- Mosquito-borne diseases and control
- Spider Taxonomy and Behavior Studies
- Animal and Plant Science Education
BOKU University
2020-2025
Gregor Mendel Institute of Molecular Plant Biology
2024-2025
University of Vienna
2021-2022
Urban areas are increasing worldwide, which poses threats to animal wildlife. However, in certain cases cities can provide refuges for endangered animals. The European green toad (Bufotes viridis) is one of such examples, known from throughout their distribution. In contrast, considerable former (primary) habitats have been degraded. primary this species include steppes and wild river floodplains, both characterized by dynamic changes the presence open areas. We used available observation...
Mercury (Hg) contamination affects all ecosystems worldwide. Its deleterious effects on wildlife and humans encompass a diversity of impacts from individual to population levels. In the present study, we quantified Hg concentration across various tissues (blood, brain, muscle, toe) green toads (Bufotes viridis) investigated use toe clips as proxy in internal tissues, including brain. Our results show distinct patterns with highest blood 1.496 ± 0.772 µg.g-1 dry weight (dw), followed by...
Abstract Recent technological advancements have allowed ecologists to study the movement of smaller animals, including insects, using remote tracking methods, such as very‐high‐frequency (VHF) technology. VHF technology enables us migration patterns, spatial behaviour and distribution in ecologically relevant species, thereby supporting development effective conservation strategies. We applied transmitters on two European carpenter bee Xylocopa valga violacea , established a approach for...
The European green toad, Bufotes viridis (Laurenti, 1768), is a rare and protected species in Vienna. In spring summer 2020, we conducted survey to assess size status of its population Donaufeld, an agricultural area designated for real estate development. Recaptures photographically registered toads allowed estimate the with 137 individuals (confidence interval: 104-181). Comparatively large body indicates presence well-established population. Reproductive success was high study year. A...
Body condition is increasingly used to assess the status of populations and as a proxy for individual fitness. A common, quick non-invasive approach estimate from relation between body length mass. Among methods developed this purpose, Scaled Mass Index (SMI) appears best suited comparisons among populations. We assembled data 17 European green toads (Bufotes viridis) with aim devising standard formula applicable monitoring species. The mean value exponents describing length–mass allometry...
Advancements in tracking technologies provide an increasingly important tool animal monitoring and conservation that can describe spatial behavior native habitats uncover migratory routes otherwise may be difficult or impossible to map. In addition, high-resolution accelerometer sensors powerful insights into activity patterns help identify specific behaviors from profiles alone. Previously, such accelerometers were restricted larger animals due size mass constraints. However, recent...
Abstract Background Sex ratios of animal populations are important factors population demographics. In pond-breeding amphibians, the operational sex ratio (OSR) among breeding is usually male-biased. Also, in European green toads ( Bufotes viridis ), males outnumber females at sites, while total adult (ASR) assumed to be balanced. It has been suggested that sex-specific behavior causes male-predominance sites. We used a dataset 5 years street patrols test this hypothesis. For we analyzed...
Abstract Background Individual identification of animals is important for assessing the size and status populations. Photo-based approaches, where are recognized by naturally occurring visually identifiable features, such as color patterns, cost-effective methods this purpose. We compared five available programs their power to semi-automatically identify dorsal patterns European green toad ( Bufotes viridis ). Method created a data set 200 pictures known identity, two each individual,...
Understanding population dynamics is vital in amphibian conservation. To compare demography and movements, we conducted a capture-recapture study over three spring seasons two populations of Salamandra salamandra the Vienna Woods. The sites differ topography, vegetation, type breeding waters. Population density beech forest traversed by stream was more than twice as high an oak-hornbeam with temporary pools. Movement distances were on average higher at latter site whereas home range...
Abstract Individual phenological life-history variations in context of seasonal conditions are well documented fishes and birds. However, amphibians, a group heavily affected by habitat loss fragmentation, have received relatively little attention regarding research on adaptations. Here we present three years data the timing reproductive activity suburban European green toad (Bufotes viridis) population. We found annually consistent patterns investigated whether these were caused allochrony...
Machine learning approaches for pattern recognition are increasingly popular. However, the underlying algorithms often not open source, may require substantial data model training, and geared toward specific tasks. We used open-source software to build a green toad breeding call detection algorithm that will aid in field analysis. provide instructions on how reproduce our approach other animal sounds research questions. Our using 34 sequences 166 audio files without had an accuracy of 0.99...
Abstract Urban areas are increasing worldwide, which poses treats to animal wildlife. However, in certain cases cities can provide refuges for endangered animals. The European green toad ( Bufotes viridis ) is one of such examples, known from throughout their distribution. In contrast, considerable former (primary) habitats have been degraded. primary this species include steppes and wild river floodplains, both characterized by dynamic changes the presence open areas. We used available...