11 results on '"Tina Dohna"'
Search Results
2. Small Scale Genetic Population Structure of Coral Reef Organisms in Spermonde Archipelago, Indonesia
- Author
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Janne Timm, Marc Kochzius, Hawis H. Madduppa, Anouk I. Neuhaus, and Tina Dohna
- Subjects
Polycarpa aurata ,clownfish ,Amphiprion ocellaris ,indo-malay archipelago ,marine populations ,population connectivity ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Small island archipelagos with fringing and dispersed reef systems represent special marine ecosystems, providing a patchy habitat for many coral reef organisms. Although geographic distances may be short, it is still unclear if such environments are inhabited evenly with panmictic conditions or if limited connectivity between marine populations, even on small geographic scales, leads to genetic differentiation between areas within the archipelago or even single reef structures. To study diversity patterns and connectivity between reefs of the Spermonde Archipelago, Indonesia, population genetic analyses of two reef organisms were performed by using the mitochondrial control region and microsatellite markers. A vertebrate (clown anemonefish) and an invertebrate species (sea squirt) were studied in parallel to investigate if there are general patterns of connectivity in Spermonde for sessile or site attached marine species, which can be extrapolated to a larger group. The genetic population structures revealed restrictions in gene flow in the clown anemone fish (Amphiprion ocellaris), especially between near-shore reefs in the South of the archipelago. This indicates very localized genetic exchange and may also reflect the high self-recruitment typical for these fish. The northern reefs show higher connectivity despite geographic distances being larger. The filter-feeding sessile sea squirt, Polycarpa aurata, features similar population patterns, especially in the southern area. However, connectivity is generally higher in the middle and shelf edge areas of Spermonde for this species. The results underline that there are restrictions to gene flow even on very small geographic scales in the studied organisms, with many barriers to gene flow in the southern shallower shelf area. Weaker currents in this area may lead to more influence of biological factors for dispersal, such as larval behavior, motility and competition for suitable habitat. The results are discussed in the context of conservation and MPA planning in the Spermonde Archipelago.
- Published
- 2017
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3. Coral Reef Social-Ecological Systems under Pressure in Southern Sulawesi. In: Science for the Protection of Indonesian Coastal Ecosystems (SPICE)
- Author
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Hauke Reuter, Annette Breckwoldt, Tina Dohna, Sebastian Ferse, Astrid Gärdes, Marion Glaser, Filip Huyghe, Hauke Kegler, Leyla Knittweis, Marc Kochzius, Wiebke Elsbeth Kraemer, Johannes Leins, Muhammad Lukman, Madduppa, Hawis H., Agus Nuryanto, Min Hui, Sara Miñarro, Gabriela Navarrete Forero, Sainab Husain Paragay, Jeremiah Plass-Johnson, Ratsimbazafy, Hajaniaina A., Claudio Richter, Yvonne Sawall, Kathleen chwerdtner Máñez, Mirta Teichberg, Janne Timm, Rosa Van Der Ven, Jamaluddin Jompa, Jennerjahn, Tim C., Rixen, Tim, Irianto, Hari Eko, Samiaji, Joko, Biology, Faculty of Sciences and Bioengineering Sciences, and Ecology and Systematics
- Abstract
Ecological and social processes of the Spermonde Archipelago, South Sulawesi, Indonesia, have been intensively studied during the Science for the Protection of Indonesian Coastal Ecosystems (SPICE) program. The archipelago is of specific interest to better understand how intensive exploitation of marine resources results in the degradation of reef systems. The projects specifically targeted (1) ecological processes in coral reefs, (2) genetic structure of populations, and (3) socialeecological dynamics relating to resource use, social networks, and governance structures. A modeling compo- nent emphasized (4) the integration of different ecological, social, and environmental components. Results indicated that reef resources in the Spermonde Archipelago are intensively exploited and further stressed by pollution effluents from hinterland processes. The lack of alternative livelihoods perpetuates dependencies within the patroneclient system of the artisanal fisheries and supports high exploitation and also destructive resource uses. Greater inclusion of local stakeholders in the governance may result in better conservation practices, sustainable resource use, and improved livelihoods for the people.
- Published
- 2022
4. Contributors
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Muslihudeen A. Abdul-Aziz, Luky Adrianto, Erwin Riyanto Ardli, Zainal Arifin, Harald Asmus, Gunilla Baum, Antje Baum, Sven Blankenhorn, Jens Boy, Annette Breckwoldt, Nurliah Buhari, Ario Damar, Made Damriyasa, Rio Deswandi, Tina Dohna, Larissa Dsikowitzky, null Dwiyitno, Sebastian Ferse, Michael Flitner, Gabriela Navarrete Forero, Astrid Gärdes, Monika Gerth, Bernhard Glaeser, Marion Glaser, Philipp Gorris, Haryanti Haryanti, Karl J. Hesse, Jill Heyde, Min Hui, Andreas A. Hutahaean, Filip Huyghe, Hari Eko Irianto, Ingo Jänen, Tim C. Jennerjahn, Jamaluddin Jompa, Hauke Kegler, Sonja Kleinertz, Alexandra Klemme, Dominik Kneer, Leyla Knittweis, Marc Kochzius, Wiebke Elsbeth Kraemer, Peter Krost, Andreas Kunzmann, Norbert Ladwig, Johannes Leins, Andreas Lückge, Martin C. Lukas, Muhammad Lukman, Hawis Madduppa, Kathleen Schwerdtner Máñez, Bernhard Mayer, Roberto Mayerle, Sara Miñarro, Neil Mohammad, Mahyar Mohtadi, Grit Mrotzek, Moritz Müller, Inga Nordhaus, Mochamad Saleh Nugrahadi, Nadiarti Nurdin, Agus Nuryanto, Vincensius S.P. Oetam, Kadir Orhan, Harry W. Palm, Wahyu W. Pandoe, Sainab Husain Paragay, Haryadi Permana, Jeremiah Plass-Johnson, null Poerbandono, Claudia Pogoreutz, Thomas Pohlmann, Widodo Setiyo Pranowo, Dody Priosambodo, Mutiara Putri, Hajaniaina Andrianavalonarivo Ratsimbazafy, Hauke Reuter, Claudio Richter, Tim Rixen, Karl-Heinz Runte, Hans Peter Saluz, Joko Samiaji, Moh Husein Sastranegara, Yvonne Sawall, Achim Schlüter, Friedhelm Schroeder, Jan Schwarzbauer, Agus Setiawan, Herbert Siegel, Stephan Steinke, Iris Stottmeister, Ketut Sugama, Susilohadi Susilohadi, Mirta Teichberg, Janne Timm, Rosa van der Ven, Simon van der Wulp, Thorsten Warneke, Francisca Wit, Dewi Yanuarita, Irfan Yulianto, Edy Yuwono, and Rina Zuraida
- Published
- 2022
5. Enabling Data Reuse Through Semantic Enrichment of Instrumentation
- Author
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Marianne Rehage, Robert Huber, Egor Gordeev, Roland Koppe, Michael Diepenbroek, Uwe Schindler, Tina Dohna, and Anusuriya Devaraju
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Computer science ,business.industry ,Data reuse ,Instrumentation (computer programming) ,Software engineering ,business - Abstract
Pressing environmental and societal challenges demand the reuse of data on a much larger scale. Central to improvements on this front are approaches that support structured and detailed data descriptions of published data. In general, the reusability of scientific datasets such as measurements generated by instruments, observations collected in the field, and model simulation outputs, require information about the contexts through which they were produced. These contexts include the instrumentation, methods, and analysis software used. In current data curation practice, data providers often put a significant effort in capturing descriptive metadata about datasets. Nonetheless, metadata about instruments and methods provided by data authors are limited, and in most cases are unstructured.The ‘Interoperability’ principle of FAIR emphasizes the importance of using formal vocabularies to enable machine-understandability of data and metadata, and establishing links between data and related research entities to provide their contextual information (e.g., devices and methods). To support FAIR data, PANGAEA is currently elaborating workflows to enrich instrument information of scientific datasets utilizing internal as well as third party services and ontologies and their identifiers. This abstract presents our ongoing development within the projects FREYA and FAIRsFAIR as follows:Integrating the AWI O2A (Observations to Archives) framework and associated suite of tools within PANGAEA’s curatorial workflow as well as semi-automatized ingestion of observatory data. Linking data with their observation sources (devices) by recording the persistent identifiers (PID) from the O2A sensor registry system (sensor.awi.de) as part of the PANGAEA instrumentation database. Enriching device and method descriptions of scientific data by annotating them with appropriate vocabularies such as the NERC device type and device vocabularies or scientific methodology classifications. In our contribution we will also outline the challenges to be addressed in enabling FAIR vocabularies of instruments and methods. This includes questions regarding reliability and trustworthiness of third party ontologies and services. Further, challenges in content synchronisation across linked resources and implications on FAIRness levels of data sets such as dependencies on interlinked data sources and vocabularies.We will show in how far adapting, harmonizing and controlling the used vocabularies, as well as identifier systems between data provider and data publisher, improves the findability and re-usability of datasets , while keeping the curational overhead a slow as possible. This use case is a valuable example of how improving interoperability through harmonization efforts, though initially problematic and labor intensive, can benefits to a multitude of stakeholders in the long run: data users, publishers, research institutes, and funders.
- Published
- 2020
6. Deliverable 4.4 Organizational IDs in Practice
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Christine Ferguson, Simon Lambert, Manuel Bernal Llinares, Frances Madden, Robin Dasler, Martin Fenner, Artemis Lavasa, Chris Baars, Tina Dohna, Ketil Koop-Jacobsen, and Dan Morgan
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FREYA, PID - Abstract
This deliverable demonstrates how the various partners in FREYA are taking up persistent identifiers for organizations as part of the Work Package 4 work on integrating emerging PID types into disciplinary contexts. A range of organization IDs are discussed with special focus on the ROR ID as a community-led initiative with open infrastructure and data that is well suited for use in an open science environment. 
- Published
- 2020
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7. D3.1 Survey of Current PID Services Landscape - Revised
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Christine Ferguson, Jo McEntrye, Vasily Bunakov, Simon Lambert, Stephanie van der Sandt, Rachael Kotarski, Sarah Stewart, Andrew MacEwan, Martin Fenner, Patricia Cruse, René van Horik, Tina Dohna, Ketil Koop-Jacobsen, Uwe Schindler, and Siobhan McCafferty
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PID - Abstract
A comprehensive survey of the landscape of persistent identifiers across many disciplines is presented, with assessments of maturity of different PID types and conclusions for the future. [Revised version]
- Published
- 2019
8. D4.2 Using the PID Graph: Provenance in Disciplinary Systems
- Author
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Artemis Lavasa, Sünje Dallmeier-Tiessen, Stephanie van de Sandt, Tina Dohna, Ketil Koop-Jakobsen, Uwe Schindler, Christine Ferguson, Johanna McEntyre, Frances Madden, Simon Lambert, Vasily Bunakov, and Chris Baars
- Subjects
EOSC ,PID infrastructure ,PID network ,Provenance ,PID ,FREYA ,PID resolution - Abstract
The main focus of this deliverable is the different approaches to provenance as understood, expressed, and implemented by the FREYA disciplinary partners in their various pilot applications. The presentations here outline general approaches to provenance in the particular research context of each organisation, current and future implementations, and describe provenance activities that are supported by persistent identifiers. The FREYA project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 777523. 
- Published
- 2019
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9. FREYA halfway webinar 9 May 2019
- Author
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Artemis Lavasa, Tina Dohna, Christine A. Ferguson, Vasily Bunakov, Maaike de Jong, Ricarda Braukmann, Francesca Morselli, Robin Dasler, Frances Madden, and SImon Lambert
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PID ,FREYA ,Persistent Identifier - Abstract
During the webinar we looked back at the progress of the first part of the project and discussed the PID Graph and the growth of a PID community. 
- Published
- 2019
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10. Deliverable D3.2 Requirements for Selected New PID Services
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Christine Ferguson, Johanna McEntyre, Ginny Hendricks, Tina Dohna, Ketil Koop-Jakobsen, Frances Madden, Sunje Dallmeier-Tiessen, Stephanie van de Sandt, Artemis Lavasa, Simon Lambert, Vasily Bunakov, Robin Dasler, and Martin Fenner
- Subjects
Persistent Identifiers ,Requirements - Abstract
A comprehensive analysis of user stories relating to a range of entities needing persistent identifiers, with conclusions for further work in the FREYA project. The deliverable was updated after the FREYA midterm review and uploaded again in November 2019.
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- 2019
- Full Text
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11. Driving Convergence in Space and Deep-Sea Science Exploration
- Author
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Allison Haefner, Tina Dohna, and Christoph Waldmann
- Subjects
010504 meteorology & atmospheric sciences ,General Earth and Planetary Sciences ,Convergence (relationship) ,Geophysics ,Space (mathematics) ,01 natural sciences ,Deep sea ,Geology ,0105 earth and related environmental sciences - Abstract
ROBEX Sensor Workshop; Vienna, Austria, 27 April 2017
- Published
- 2017
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