A5040501564- Crustacean biology and ecology
- Subterranean biodiversity and taxonomy
- Marine Biology and Ecology Research
- Fish biology, ecology, and behavior
- Neurobiology and Insect Physiology Research
- Parasite Biology and Host Interactions
- Spider Taxonomy and Behavior Studies
- Venomous Animal Envenomation and Studies
- Cephalopods and Marine Biology
- Amphibian and Reptile Biology
- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Evolution and Paleontology Studies
- Lepidoptera: Biology and Taxonomy
- Animal Behavior and Reproduction
- Morphological variations and asymmetry
- Ichthyology and Marine Biology
- Marine and fisheries research
- Physiological and biochemical adaptations
- Hemiptera Insect Studies
- Genetic diversity and population structure
- Aquaculture Nutrition and Growth
- Fossil Insects in Amber
- Turtle Biology and Conservation
- Coral and Marine Ecosystems Studies
University of Rostock
2014-2023
Humboldt-Universität zu Berlin
2002-2009
Friedrich Schiller University Jena
2007
University of Vienna
2002
Despite a large and multifaceted effort to understand the vast landscape of phenotypic data, their current form inhibits productive data analysis. The lack community-wide, consensus-based, human- machine-interpretable language for describing phenotypes genomic environmental contexts is perhaps most pressing scientific bottleneck integration across many key fields in biology, including genomics, systems development, medicine, evolution, ecology, systematics. Here we survey phenomics...
Throughout the history of biology since time Goethe, morphology as a discipline has been not only descriptive but explanatory too. Both, itself and its central concept, homology, are pre-Darwinian in origin, result dubious eyes many. Although taken evolution into account Darwin, contribution scientific to evolutionary is matter dispute. This paper can be regarded conceptualization research program for Evolutionary Morphology, term we use characterize field which includes description,...
How do stunning functional innovations evolve from unspecialized progenitors? This puzzle is particularly acute for ultrafast movements of appendages in arthropods as diverse shrimps [1], stomatopods [2], insects [3-6], and spiders [7]. For example, the spectacular snapping claws alpheid close so fast (∼0.5 ms) that jetted water creates a cavitation bubble an immensely powerful snap upon collapse [1]. Such extreme depend on (1) energy-storage mechanism (e.g., some kind spring) (2) latching...
Abstract Scorpions are among the first animals to have become fully terrestrialised. Their early fossil record is limited, and fundamental questions, including how when they adapted life on land, been difficult answer. Here we describe a new exceptionally preserved scorpion from Waukesha Biota (early Silurian, ca. 437.5–436.5 Ma) of Wisconsin, USA. This earliest yet reported, it shows combination primitive marine chelicerate derived arachnid characteristics. Elements circulatory,...
We demonstrate that by formulating guidelines for evolutionary morphology the transparency, reproducibility, and intersubject testability of hypotheses based on morphological data can be enhanced. The five main steps in our concept are (i) taxon sampling, (ii) structural analysis, (iii) character conceptualization, (iv) phylogenetic (v) interpretation. illustrate this example circulatory organs peracarid Malacostraca. analysis is recently published accounts which detailed analyses were...
Abstract Although scorpions are one of the better known groups Arthropoda, detailed knowledge their anatomy remains superficial. This contribution presents first comprehensive investigation gross morphology scorpion vascular system, based on a survey species representing all major lineages order, using classical and modern non‐destructive techniques in combination with three‐dimensional reconstruction. The reveals that hemolymph system (HVS) Scorpiones comprises central pumping heart which...
While a number of neuroanatomical studies in other malacostracan taxa have recently contributed to the reconstruction ground pattern, little is known about nervous system three enigmatic blind groups peracarids from relict habitats, Thermosbaenacea, Spelaeogriphacea, and Mictocarididae. This first detailed description brain representative each taxon largely based on combination serial semi-thin sectioning computer-aided 3D-reconstructions. In addition, mictocaridid Mictocaris halope was...
The history of the homology concept is a attempts to conceive basis sameness in biology. Since it was formulated middle 19th century, has had fit an ever growing number scientific fields and purposes. These different demands have resulted diverging, sometimes, incompatible definitions. inconsistencies are mostly due lack clear separation hypotheses maintenance from transformation. A synthetic approach define thus consider following pivotal points: (i) evolutionary should be kept separate...
ABSTRACT Porcelain crabs (Porcellanidae) are one of three taxa within anomuran crustaceans (Anomala) which possess a crab‐like body form. Curiously, these lineages evolved this shape independently from true (Brachyura) in the course evolutionary process termed carcinization. The entire pleon porcelain is flexed under cephalothorax and carapace approximately as broad long. Despite their habitus, phylogenetically nested squat lobsters (Munidopsidae, Munididae, Galatheidae). With only partly...
ABSTRACT Although the circulatory system of arthropods has long been considered as rather simple, recent studies have demonstrated that in certain arthropod taxa, such Malacostraca, some Chilopoda and also many Chelicerata, vascular systems particular are complex. Furthermore, a study revealed prosomal ganglion scorpions spiders is supplied by an intricate network arteries, complexity which bears close resemblance to vertebrate capillary systems. In this study, we analyzed hemolymph various...
Within decapod crustaceans, Anomura is the phenotypically most disparate taxon, ranging from hermit crabs to squat lobsters crab-like representatives. Curiously, not only did habitus evolve independently ‘true’ (Brachyura), it also evolved three times within anomurans. This process has been called ‘carcinization’ by English zoologist Lancelot Alexander Borradaile in 1916. In this paper we summarize results of our recent studies into evolution morphotype (i.e. carcinization) and possible...
A SkyScan-1072 high-resolution desktop microtomograph was used to visualize the 3D morphology of circulatory system Porcellio scaber (Crustacea, Malacostraca, Isopoda) at micrometer level. Prior MicroCT investigation, injected with a fast-hardening resin, permitting better contrast vascular structures that are normally hollow after fixation. Stacks tomographic images were reconstruct three-dimensionally. The spatial resolution achieved by is about 3.5 microm. technique provides detailed...
Abstract The morphological transformation of hermit crabs into crab‐like king in the evolution decapod crustaceans represents a remarkable case carcinization or evolutionary shaping form. In this study, we focus on internal organs such as hemolymph vascular system and adjacent anatomical structures several Recent crab (Paguridae) (Lithodidae) species. There are various correspondences morphology arterial systems dorsal cephalothorax two taxa, especially with regard to anterior aorta, lateral...
150 years after Darwin’s ‘Origin of Species’ and 100 W.T. Calman’s infl uential treatment on crustacean morphology classifi cation, phylogenetics remains an active, exciting controversial fi eld research. An international symposium held from 7th–11th October 2008 at the University Rostock attempted to summarize latest developments. Molecular evidence suggests that crustaceans are paraphyletic with regard hexapods, though a few potential apomorphies Crustacea can still be named. If do turn...
Abstract The circulatory organs of nine representative species all five chilopod orders were examined by light microscopy and in vivo observations haemolymph flow. In Scutigera coleoptrata , the heart ultrastructure was studied. system Craterostigmomorpha is described for first time. Further focus placed on Geophilomorpha since previous descriptions this group have been only superficial. investigated species, consists two longitudinal central vessels which are connected body segment...
Abstract The morphology of the circulatory organs in Mysida and Lophogastrida (traditionally combined as Mysidacea) is revisited investigating species so far unstudied. In addition to classical morphological methods, a newly developed combination corrosion casting with micro computer tomography (MicroCT) aided 3D reconstructions used. show highly arterial system. tubular heart extends through greater part thorax connected ventral vessel via an unpaired descending artery. It suggested that...
The internal anatomy of freshwater crayfish is strictly bilaterally symmetric, with the conspicuous exception vertically oriented descending artery (sternal artery), which originates from heart and terminates in subneural artery. Serial sectioning 133 juveniles parthenogenetic marbled revealed that was symmetric 4.5% specimens, right asymmetric 45.1%, left 50.4%. In variant two branches arise chambers bulbus heart, run laterally around hindgut, fuse underneath it. variants have only one...
Morphology, the oldest discipline in biosciences, is currently experiencing a renaissance field of comparative phenomics. However, morphological/phenotypic research still suffers on various levels from lack standards. This shortcoming, first highlighted as "linguistic problem morphology", concerns usage terminology and also need for formalization morphological descriptions themselves, something paramount importance not only to morphology but when it comes use phenotypic data systematics...