A5072550659- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Genetic diversity and population structure
- Plant and animal studies
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Genomics and Phylogenetic Studies
- Animal Behavior and Reproduction
- Ecology and Vegetation Dynamics Studies
- Turtle Biology and Conservation
- Identification and Quantification in Food
- Evolution and Paleontology Studies
- Environmental DNA in Biodiversity Studies
- Fish Ecology and Management Studies
- Animal Ecology and Behavior Studies
- Forest Ecology and Biodiversity Studies
- Animal Vocal Communication and Behavior
- Environmental Toxicology and Ecotoxicology
- Evolution and Genetic Dynamics
- Spider Taxonomy and Behavior Studies
- Lepidoptera: Biology and Taxonomy
- Yersinia bacterium, plague, ectoparasites research
- Animal and Plant Science Education
- Mosquito-borne diseases and control
- Forest Insect Ecology and Management
Universität Trier
2015-2024
Chemisches und Veterinäruntersuchungsamt Ostwestfalen-Lippe
2023
University Medical Centre Mannheim
2019-2022
Heidelberg University
1997-2022
Google (United States)
2018
Johannes Gutenberg University Mainz
2001-2012
Universidade de Vigo
2012
Institut de Systématique, Évolution, Biodiversité
2012
Museo Nacional de Ciencias Naturales
2012
Consejo Superior de Investigaciones Científicas
2012
Amphibians are thought to be unable disperse over ocean barriers because they do not tolerate the osmotic stress of salt water. Their distribution patterns have therefore generally been explained by vicariance biogeography. Here, we present compelling evidence for overseas dispersal frogs in Indian Ocean region based on discovery two endemic species Mayotte. This island belongs Comoro archipelago, which is entirely volcanic and surrounded sea depths more than 3500 m. constitutes first...
Representatives of the genus Salamandra occur in Europe, Northern Africa and Near East. Many local variants are known but species subspecies status these is still a matter dispute. We have analysed samples from locations covering whole expansion range by sequence analysis mitochondrial D-loop regions. In addition, we calibrated rate divergence on basis geologically dated splits closely related Euproctus. Phylogenetic sequences suggests that six major monophyletic groups exist (S. salamandra,...
Background Species Distribution Models (SDMs) aim on the characterization of a species' ecological niche and project it into geographic space. The result is map potential distribution, which is, for instance, helpful to predict capability alien invasive species. With regard species, recently several authors observed mismatch between distributions native ranges derived from SDMs and, as an explanation, shift during biological invasion has been suggested. We studied physiologically well known...
Species are being lost at increasing rates due to anthropogenic effects, leading the recognition that we witnessing onset of a sixth mass extinction. Emerging infectious disease has been shown increase species loss and any attempts reduce extinction need squarely confront this challenge. Here, develop procedure for identifying amphibian most risk from effects chytridiomycosis by combining spatial analyses key host life-history variables with pathogen's predicted distribution. We apply our...
Abstract White-nose syndrome is an emerging disease in North America that has caused substantial declines hibernating bats. A recently identified fungus (Geomyces destructans) causes skin lesions are characteristic of this disease. Typical signs infection were not observed bats before white-nose was detected. However, unconfirmed reports from Europe indicated white fungal growth on without associated deaths. To investigate these differences, sampled Germany, Switzerland, and Hungary to...
This article documents the addition of 139 microsatellite marker loci and 90 pairs single-nucleotide polymorphism sequencing primers to Molecular Ecology Resources Database. Loci were developed for following species: Aglaoctenus lagotis, Costus pulverulentus, scaber, Culex pipiens, Dascyllus marginatus, Lupinus nanus Benth, Phloeomyzus passerini, Podarcis muralis, Rhododendron rubropilosum Hayata var. taiwanalpinum Zoarces viviparus. These cross-tested on quinquefasciatus, pseudochrysanthum...
Emerging fungal diseases can drive amphibian species to local extinction. During 2010-2016, we examined 1,921 urodeles in 3 European countries. Presence of the chytrid fungus Batrachochytrium salamandrivorans at new locations and different expands known geographic host range underpins its imminent threat biodiversity.
Abstract Twenty years after the world's nations agreed upon Convention on Biodiversity, there is still a global decline in biodiversity. At present it seems unlikely that Aichi Targets of halting biodiversity loss by 2020 will be met. Although European Union often seen as pioneer this regard, its “Habitats Directive” represents one strongest legal tools nature conservation, continues to even Europe. We outline four major problems current implementation directive. First, prioritization needs...
To examine the prognostic value of serum neuron-specific enolase for early prediction outcome in patients at risk anoxic encephalopathy after cardiac arrest.Prospective study.Coronary intensive care unit University Heidelberg.Forty-three (66.8 +/- 12.7 [SD] yrs, range 33 to 85) who had either primary or secondary arrest, followed by cardiopulmonary resuscitation (CPR).Serial blood samples and clinical examinations.Serum concentrations were determined CPR on 7 consecutive days. Twenty-five...
The range size of a species can be determined by its current traits and phylogenetic biogeographic factors. However, only rarely have these factors been studied in combination. We use data on the geographic sizes all 26 Sylvia warblers to explicitly test whether was species-specific (e.g., body size, dispersal ability), age lineage), or environmental, latitudinal position range). results demonstrated that were interrelated. While number significant simple regression analyses, one factor...
We describe a new species of long-eared bat, genus Plecotus, from the island Sardinia (Italy). The is clearly distinguishable other European Plecotus by its mitochondrial 16S rRNA gene (4.1–9.6% sequence divergence) as well unique combination morphological characters such brownish colour dorsal pelage, relatively large thumb and claw, an almost cylindrical form penis characteristic shape baculum. most important diagnostic character long (≥ 18 mm) wide 6 tragus. currently known three...
Abstract Functional connectivity is essential for the long‐term persistence of populations. However, many studies assess with a focus on structural only. Cityscapes, namely urban landscapes, are particularly dynamic and include numerous potential anthropogenic barriers to animal movements, such as roads, traffic or buildings. To compare habitats functional gene flow an lizard, we here combined species distribution models ( SDM s) individual‐based landscape genetic optimization procedure. The...
Species can show strong variation of local abundance across their ranges. Recent analyses suggested that in be related to environmental suitability, as the highest abundances are often observed populations living most suitable areas. However, there is limited information on mechanisms through which suitability determines abundance. We analysed microendemic salamander Hydromantes flavus, and tested several hypotheses potential relationships linking population parameters. For multiple whole...
Aim The biogeographical origins of the extant vertebrates endemic to Madagascar are largely unsolved, but have often been related vicariance in context fragmentation supercontinent Gondwana Mesozoic. Such hypotheses especially appealing case cichlid fishes, which show phylogenetic relationships reflecting temporal successions breakup Gondwana. We used molecular clock data test this assumption. Location Fragments 16S rRNA gene and nuclear Tmo‐4C4 locus, partly obtained from Genbank South...
Abstract Holarctic biodiversity has been influenced by climatic fluctuations since the Pliocene. Asia Minor was one of major corridors for postglacial invasions in Palearctic. Today this area is characterized an extraordinarily rich fauna with close affiliation to European, Asian and Indo‐African biota. However, exact scenarios range expansion contraction are lacking. Using a phylogeographical approach we (i) identify monophyletic lineages among Anatolian mountain frogs (ii) derive...