18 Works

Data from: Can fractal dimensions objectivize gastropod shell morphometrics? A case study from Lake Lugu (SW China)

Robert Wiese, Kyle Harrington, Kai Hartmann, Manja Hethke, Thomas Von Rintelen, Hucai Zhang, Le-Jia Zhang & Frank Riedel
Morphometrics are fundamental for statistical analyses of fossils, particularly because soft parts or DNA are rarely preserved and thus hard parts such as shells are commonly the only source of information. Geometric morphometrics i.e. landmark analysis has been successfully established but exhibits a couple of shortcomings. On the one hand landmarking is rather subjective and on the other hand the application at the level of micro-sculpture is difficult. With the aid of high-resolution 3D scanning...

Transforming Closed Silos into Shared Resources: Opening up data on historical collection agents affiliated with the Museum für Naturkunde Berlin

Sabine von Mering, Katja Kaiser & Mareike Petersen
The talk using these slides has been presented at the TDWG 2022 conference in Sofia, Bulgaria. It was part of session "INT19 - The role of the Wikimedia ecosystem in linking biodiversity data". For the corresponding conference abstract see https://doi.org/10.3897/biss.6.93787.

Data from: Sustained plumage divergence despite weak genomic differentiation and broad sympatry in sister species of Australian woodswallows (Artamus spp.)

Joshua Peñalba, Jeffrey Peters & Leo Joseph
Plumage divergence can function as a strong premating barrier when species come into secondary contact. When it fails to do so, the results are often genome homogenization and phenotypic hybrids at the zone of contact. This is not the case in the largely sympatric masked woodswallow and white-browed woodswallow species (Passeriformes: Artamidae: Artamus spp) complex in Australia where phenotypic integrity is sustained despite no discernible mitochondrial structure in earlier work. This lack of structure may...

The soundscape of swarming: Proof of concept for a non-invasive acoustic species identification of swarming Myotis bats

Anja Bergmann, Lara Burchardt, Bernadette Wimmer, Karl Kugelschafter, Florian Gloza-Rausch & Mirjam Knoernschild
Bats emit echolocation calls to orientate in their predominantly dark environment. Recording of species-specific calls can facilitate species identification, especially when mist-netting is not feasible. However, some taxa, such as Myotis bats are hard to distinguish acoustically. In crowded situations where calls of many individuals overlap the subtle differences between species are additionally attenuated. Here we sought to non-invasively study the phenology of Myotis bats during autumn swarming at a prominent hibernaculum. To do so...

Phylogenomics and fossil data inform the systematics and geographic range evolution of a diverse Neotropical ant lineage

Benjamin Blanchard, Shauna Price, Scott Powell, Bonnie Blaimer & Corrie Moreau
Recent advances in phylogenomics allow for the use of large amounts of genetic information in phylogenetic inference. Ideally, the increased resolution and accuracy of such inferences facilitate improved understanding of macroevolutionary processes. Here, we integrate ultraconserved elements (UCEs) with fossil and biogeographic range data to explore diversification and geographic range evolution in the diverse turtle ant genus Cephalotes. We focus on the potential role of the uplift of the Panamanian land bridge and the putative...

Paleoclimate reconstruction using Pleistocene paleosols along the middle Atbara River in Eastern Sudan

M. Mohammednoor, Robert Bussert , S. Tsukamoto , M. Richter , O. El Bedri , B. Kraatz , K. Salih , J. Müller , A. Eisawi & F. Bibi
Along the middle Atbara River, Pleistocene alluvial sediments dated to ~200 to 20 ka are exposed in eastern Sudan over a length of about 200 km with a maximum thickness of 50 m. The Atbara River today has its headwaters in the northern Ethiopian Plateau and is the last major tributary of the Nile before it flows through the Sahara. Previous studies and our fieldwork since 2018 have resulted in extensive finds of fossil terrestrial...

Data from: Gradual warming prior to the end-Permian mass extinction

Jana Gliwa, Michael Wiedenbeck, Martin Schobben, Clemens Vinzenz Ullmann, Wolfgang Kiessling, Abbas Ghaderi, Ulrich Struck & Dieter Korn
The biggest known mass extinction in the history of animal life occurred at the Permian-Triassic boundary and has often been linked to global warming. Previous studies suggested that a geologically rapid (less than 40 kyr) temperature increase of more than 10°C occurred simultaneously with the main extinction pulse. This hypothesis is challenged by geochemical and palaeontological data indicating profound environmental perturbations and a temperature rise prior to the main extinction. Using Secondary Ion Mass Spectrometry...

Softening the steps to gigantism in sauropod dinosaurs through the evolution of a pedal pad

Andréas Jannel, Steven W. Salisbury & Olga Panagiotopoulou
How sauropod dinosaurs were able to withstand the forces associated with their immense size represents one of the most challenging biomechanical scenarios in the evolution of terrestrial tetrapods, but also one lacking robust biomechanical testing. Here, we use finite element analyses to quantify the biomechanical effects of foot skeletal postures with and without the presence of a soft tissue pad in sauropodomorphs. We find that none of the models can maintain bone stresses that fall...

Sequestration of defenses against predators drives specialized host plant associations in preadapted milkweed bugs (Heteroptera: Lygaeinae)

Georg Petschenka, Rayko Halitschke, Tobias Züst, Anna Roth, Sabrina Stiehler, Linda Tenbusch, Christoph Hartwig, Juan Francisco Moreno Gámez, Robert Trusch, Jürgen Deckert, Kateřina Chalušová, Andreas Vilcinskas & Alice Exnerová
Host plant specialization across herbivorous insects varies dramatically, but while the molecular mechanisms of host-plant adaptations are increasingly known, we often lack a comprehensive understanding of the selective forces that favor specialization. The milkweed bugs (Heteroptera: Lygaeinae) are engaged in ancestrally specialized associations with plants of the Apocynaceae from which they commonly sequester cardiac glycosides for defense, facilitated by resistant Na+/K+-ATPases and adaptations for transport, storage and discharge of toxins. Here, we show that three...

DiSSCo Prepare Milestone report MS3.5 \"Standard Operating Procedures for Digitisation\"

Lisa French, Laurence Livermore, Elspeth Haston, Robyn Drinkwater, Pedro Arsénio, Rui Figueira, Frederik Berger, Ann Bogaerts, Robert Cubey, Sofie De Smedt, Helen Hardy, Sally King, Anne Koivunen, Esko Piirainen, Sabine von Mering, John Zhengzhe Wu & Vincent Smith

DiSSCo Prepare Milestone report MS3.9 \"Staff secondment procedures\"

Helen Hardy, Sabine von Mering, Frederik Berger, Peter Giere, Patricia Mergen, Anne Koivunen, Claus Weiland, Jonas Grieb, Martin Vipp & Kadri Põldmaa

Data from: A phylogenetic study to assess the link between biome specialisation and diversification in swallowtail butterflies

Sara Gamboa, Fabien L. Condamine, Juan L. Cantalapiedra, Sara Varela, Jonathan Pelegrín, Iris Menéndez, Fernando Blanco & Manuel Hernández Fernández
The resource-use hypothesis, proposed by E.S. Vrba, states that habitat fragmentation caused by climatic oscillations would affect particularly biome specialists (species inhabiting only one biome), which might show higher speciation and extinction rates than biome generalists. If true, lineages would accumulate biome-specialist species. This effect would be particularly exacerbated for biomes located at the periphery of the global climatic conditions, namely, biomes that have high/low precipitation and high/low temperature such as rainforest (warm-humid), desert (warm-dry),...

LI@Geo.X – A Laboratory Infrastructure Search Portal for the Geo.X Network

Manja Luzi-Helbing , Christopher Hamann , Kirsten Elger , Damian Ulbricht , Florian Ott , Marc Hanisch , Nils Brinckmann , Hannes Fuchs , Hildegard Gödde , Roland Bertelmann & Lutz Hecht
Geo.X is the research network for geosciences in the Berlin and Potsdam metropolitan region and integrates five universities and six extramural research institutions. Our partners are committed to a FAIR and sustainable handling of research data and infrastructures. For this purpose, we established a search portal for the geoscientific laboratory infrastructure and related research data of the network partners (LI@Geo.X). The portal aims to increase the visibility and accessibility of the partner institutions’ infrastructures, data,...

Paleogene polar plankton and paleoproductivity: new proxy data from the Eocene - Oligocene transition

Gayane Asatryan , Volkan Özen , Gabrielle Rodrigues de Faria , David Lazarus & Johan Renaudie
Polar plankton plays a large role in global carbon cycling. There is a significant lack of knowledge of these biotas, however. The main goal of our project is to understand how plankton and oceans interacted in the past during the Eocene/Oligocene (E/O) transition, when significant climate shifts happened. We use a multiproxy approach by combining microfossils and geochemical data. Our study includes the first-ever comprehensive surveys of both diatom and radiolarian plankton diversity (siliceous protists...

The Pleistocene sediments of the Palaeoatbara in eastern Sudan as an archive for the evolution of the Nile river system

Robert Bussert , Mosab Mohammednoor , Faysal Bibi , Faysal Bibi , Sumiko Tsukamoto , Omar Bedri , Brian Kraatz , Ignacio Lazagabaster , Johannes Müller , Khalaf Salih & Ali Eisawi
Geological evidence and geodynamic modelling suggest that the Nile river system has been largely stable since its origins ~30 Ma. The Nile could have provided a long-term migration route for vertebrates including hominins between Eastern and Northern Africa. However, other geological data contradict such an old stabilisation of the course of the Nile. Fieldwork along the middle stretches of the Atbara River, the last tributary to the Nile before it crosses the Sahara, provides evidence...

Geoscience Education for the Young Generation: mileko - The Mineralogical Science Kit

Maria Mrosko , Lennart A. Fischer , Lutz Hecht , Bastian Joachim-Mrosko , Malte Junge , Gilla Simon & Roland Stalder
Geosciences only play a minor role in today’s German and Austrian school curricula, although being strongly related to important topics such as climate change and sustainability of resources. The Mineralogical Science Kit (Mineralogischer Lehrkoffer ‘mileko’) aims at bringing back geoscientific and mineralogical contents into STEAM-fields (science, technology, engineering, art, mathematics) by linking mineralogy to regular teaching subjects. In 5 different modules pupils can not only discover the world of rocks and minerals but also get...

Network analysis with either Illumina or MinION reveals that detecting vertebrate species requires metabarcoding of iDNA from a diverse fly community

Amrita Srivathsan
DNA obtained from invertebrates (iDNA) can be metabarcoded in order to survey vertebrate communities. Here, we tested for specialization by sampling the dung and carrion fly community of a swamp forest remnant along a disturbance gradient (10 sites: 80–310 m from a road). This dataset contains Illumina and MinION datasets corresponding to metabarcoding experiments on 435 fly faecal samples. This involved the amplification of 3 genes (COI 244-bp fragment, COI 313-bp fragment, and 16S) from...

DiSSCo Prepare Deliverable report D5.1 DiSSCo Knowledgebase for technical development

Sabine von Mering, Julia Pim Reis & Mareike Petersen

Registration Year

  • 2022
    18

Resource Types

  • Dataset
    10
  • Text
    8

Affiliations

  • Museum für Naturkunde
    17
  • Natural History Museum
    3
  • Meise Botanic Garden
    2
  • Royal Botanic Garden Edinburgh
    2
  • Finnish Museum of Natural History
    2
  • University of Tartu
    2
  • Freie Universität Berlin
    2
  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
    2
  • //ror.org/02jbayz55:Faculty of Minerals and Oil, International University of Africa, Madani St, Khartoum 12223, Sudan
    1
  • //ror.org/05167c961:Department of Anatomy, Western University of Health Sciences, Pomona, CA 91711, USA
    1