A5053551660- Coleoptera Taxonomy and Distribution
- Fossil Insects in Amber
- Scarabaeidae Beetle Taxonomy and Biogeography
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Insect and Arachnid Ecology and Behavior
- Ecology and biodiversity studies
- Lepidoptera: Biology and Taxonomy
- Forest Insect Ecology and Management
- Plant Parasitism and Resistance
- Forest Ecology and Biodiversity Studies
- Species Distribution and Climate Change
- Venomous Animal Envenomation and Studies
- Amphibian and Reptile Biology
- Silk-based biomaterials and applications
- Adhesion, Friction, and Surface Interactions
- Skin and Cellular Biology Research
- Fluid Dynamics and Heat Transfer
- Aquatic Ecosystems and Phytoplankton Dynamics
- Ecology, Conservation, and Geographical Studies
- Subterranean biodiversity and taxonomy
- Genetic and Environmental Crop Studies
- Agriculture and Biological Studies
- Freshwater macroinvertebrate diversity and ecology
- Insect behavior and control techniques
University of Bonn
2009-2023
Institute of Crop Science
2015
Abstract The loss of biodiversity and biomass insects has a detrimental effect on eco-systems associated ecosystem services, e.g. pollination. For this reason, various nature conservation measures for the promotion are being created in agricultural landscapes. One those is so-called flower strip at edge fields. However, it repeatedly propagated community that by means annually mulched strips, species richness abundance pollinators intensively used areas cannot be increased. Furthermore,...
External and internal morphological characters of extant fossil organisms are crucial to establishing their systematic position, ecological role evolutionary trends. The lack soft-tissue preservation in many arthropod fossils, however, impedes comprehensive phylogenetic analyses species descriptions according taxonomic standards for Recent organisms. We found well-preserved three-dimensional anatomy mineralized arthropods from Paleogene fissure fillings demonstrate the value these fossils by...
Perennial flower strips on high-yield soils may lose most of their flowering aspect during aging. This creates a dilemma, referred to herein as strip dilemma (FSD): On the one hand number pollinating and non-pollinating insects increases short-term aging strips, other hand, perennial certain age often become grass dominated are therefore less attractive many species. Thus, question arises when there is appropriate time create new support species possible. To find way out described we focused...
Abstract True mimicry is an extremely rare phenomenon in cockroaches, with beetles as their favorite models. So far, only very few Pseudophyllodromiinae could be identified that conform to all requirements for Batesian and similarly exist isolated reports on Müllerian mimicry. The vast majority, however, of the so‐called beetle‐mimicking cockroaches shows a high degree generalized convergence regarding outer appearance. Specific models or counterparts, respectively, are lacking. Here we...
Abstract: Fossil water scavenger beetles (Coleoptera: Hydrophilidae) of the latest Oligocene Rott Formation are revised, based on examination type specimens, as well numerous additional material from Statz (Los Angeles) and Kastenholz (Bonn) collections. Seven hydrophilid species recognized, five which reliably attributed to following genera: Berosus morticinus (von Heyden von Heyden, 1866), Paracymus excitatus sp., Hydrobiomorpha fraterna 1859), Hydrophüus rottensis (Statz, 1939)....
Fossil representatives of the hydrophilid genera Hydrochara Berthold, 1827, Hydrobiomorpha Blackburn, 1888 and Hydrophilus Geoffroy, 1762 were recorded at lower Middle Eocene locality Grube Messel in Germany. Four morphospecies recognised, including eopalpalis, sp. nov. showing sexually dimorphic maxillary palpomere 2 unknown any recent or fossil species genus. These fossils are oldest known records mentioned indicate a minimum age 47 million years for divergence clades. Based on these data,...
A new fossil bark-gnawing beetle, Ancyrona eocenica Schmied, Wappler, Kolibáč, species (Coleoptera: Cleroidea: Trogossitidae), is described and figured from a specimen preserved in Eocene limnic sediments of the Eckfeld Maar, Germany. sp. nov. (Peltinae: Ancyronini) first trogossitid Maar as well ever this genus. The distinguished recent congeners which are distributed Ethiopian Oriental regions by following: minute body (2.6 mm), anterior margin pronotum weakly concave, broadly oval....
The Sandfish (Scincidae: Scincus Scincus) Is a Lizard Capable of Moving through Desert Sand in Swimming-Like Fashion. the Epidermis this Shows High Resistance against Abrasion Together with Low Friction to as an Adaption Subterranean Life below Desert’s Surface, Outperforming even Steel. Mainly Caused by Chemical Composition Scales, which Consist Glycosylated β-Keratins. Study, Friction, Micro-Structure, Glycosylation β-Keratin Proteins and Coding DNA Comparison other Reptilian Species Was...
The fossils originally assigned to the family Hydrophilidae (Coleoptera, Polyphaga) from late Miocene locality of Öhningen (southern Germany) are revised. Nine hydrophilid species recognized, most them representing tribe Hydrophilini. Five reliably genera: Hydrochara noachica (Heer, 1847), n. comb. (= Hydrophilus rehmanni Heer, 1847, syn.), Hydrobiomorpha braunii Hydrous escheri 1862, heeri sp., spectabilis 1847 knorrii syn., = giganteus and vexatorius 1847. Two taxa treated as Hydrophilini...
Abstract: A species of water‐penny beetles is recorded from larval instars the Middle Eocene Messel pit fossil site in Germany. This clearly belongs to psephenid subfamily Eubrianacinae, but its precise systematic affinities remain unclear. It second this taxon Europe. The holotype first species, Eubrianax vandeli Bertrand and Laurentiaux, 1963, lost. high number specimens allowed discussion stratigraphic spatial occurrence eubrianacine pit, ontogeny could not be unravelled. Because fossils...
The sandfish (Scincidae: Scincus scincus) is a lizard having the remarkable ability to move through desert sand in a swimming-like fashion. most outstanding adaptation its subterranean life epidermis that shows low friction behaviour and extensive abrasion resistance against sand, outperforming even steel. skin consists of glycosylated keratins, which were found be absolutely necessary for described phenomenon. Here we discuss function of serrated microstructures upon dorsal scales by...
This study focuses on the fossil beetles assigned previously to family Hydrophilidae described from localities in southern part of Upper Rhine Graben: Brunstatt (France, Alsace) and Kleinkems (Germany, Baden-Württemberg) (both dated ca. Eocene-Oligocene boundary, 34 Ma). The identity Escheria convexa Förster, 1891 is fixed by designation its neotype, species redescribed, illustrated, transferred hydrophilid genus Hydrobius Leach, 1815 Copelatus Erichson, 1832 (Coleoptera: Adephaga:...
In der Niederrheinischen Bucht, einer überwiegend intensiv bewirtschafteten Ackerbauregion, wurden neu entwickelte Blühstreifenmischungen aus Kulturpflanzen eingesät. Im Verlauf Vegetationsperiode wurde die Avifauna Umgebung erfasst. Als Vergleich diente ein Blühstreifen gleichen Mischung an einem grünlanddominierten Standort mit Waldeinfluss in Eifel. Zur Bewertung Eignung des Blühstreifens für Agrarvögel im Vorhinein Zielarten Maßnahme festgelegt. Saatgutmischungen allein bieten...
Der Erstnachweis der Zweizelligen Sandbiene (Andrena lagopus) sowie Zweitnachweis Schwarzblauen agilissima) für Nordrhein-Westfalen werden vorgestellt. Die Arten wurden innerhalb des Monitorings zum Projekt Summendes Rheinland Stiftung Rheinische Kulturlandschaft nachgewiesen, welches Naturschutzmaßnahmen auf intensiv bewirtschafteten Ackerflächen entwickelt und gemeinsam mit Landwirten durchführt. Mögliche Ursachen die Ausbreitung Wahrscheinlichkeit einer dauerhaften Etablierung beider diskutiert.
Die Unterartgrenze zwischen der westeuropäischen Singdrossel Turdus philomelos clarkei Hartert, 1909 und Nominatform C. L. Brehm, 1831 verläuft wahrscheinlich durch das Rheinland. Das Bergische Land repräsentiert den östlichen, gebirgigen Teil des Rheinlandes mit kontinentalem Klima im Gegensatz zum Flachland Westen, welches atlantischen Einfluss geprägt ist. Der Status Unterart Rheinland wird Hinblick auf diese topografischen Unterschiede diskutiert.