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Radboud University Press Dissertation Series

Radboud University Press presents the Radboud Dissertation Series offering a comprehensive suite of services to enhance your academic journey. Download our information  flyer  here .

Radboud Dissertation Series Highlights

• Printing and Design : Radboud University Press offers free printing and design for all Radboud University PhD candidates;
• Online Accessibility : Your dissertation is available in both print and Open Access online;
• Long-term Availability : Even post-defense, you can order and print your dissertation 'on demand' for years to come.

PhD candidates pursuing their doctorates at Radboud University have the opportunity to publish their dissertations with Radboud University Press as part of the Radboud Dissertation Series. The individual dissertations will gain visibility within their specific field of study through indexing.

Radboud University Press will provide process guidance and control and handle administrative tasks throughout the publication process. Your dissertation will be professionally designed and produced. Dissertations will be formatted according to the house style of the Radboud Dissertation Series.

Before publication, you can order a maximum of 80 copies of your dissertation and a maximum of 135 booklets containing a summary and a QR code that links to the digital version of the dissertation for friends, family and acquaintances. It is always possible to order more copies at your own expense. Once published with us, your dissertation will remain available as a free download in PDF format via our website. Paper copies can also be ordered at any time on a print-on-demand basis. This ensures that those who prefer a physical copy of the dissertation can obtain one at a reasonable cost that covers the production expenses and delivery costs.

After the promotion, RUP will take care of the financial settlement with the faculties, so you won’t have to advance any money or need a receipt from the Repository.

Interested?

Great! If you decide to publish with the Radboud Dissertations Series at Radboud University Press, please email us at [email protected] . Please include the following details in your email:

• Your first and last name
• The full title of your dissertation (including subtitle)
• The topic of your dissertation
• The language in which your dissertation is written
• Estimated number of pages
• Illustrations included? Yes/no
• Date of defence (if known)

We’ll get in touch with you as soon as possible.

The Radboud Dissertation Series officially started in January 2024. For print-on-demand options of our dissertations, please go to: https://www.boekenbestellen.nl/radboud-university-press/dissertations .

Come to our workshop for PhD candidates on how to publish your dissertation in the Radboud Dissertation Series . Registration is not necessary.

Date: June 20 2024 Time: 10:00-11:00 AM and 12:30-13:30 PM Location: UB, Erasmuslaan 36, UBN.1.05b, Nijmegen

Date:  September 19 2024 Time:  10:00-11:00 AM and 13:00-14:00 PM Location:  UB, Erasmuslaan 36, UBN.1.05b, Nijmegen

How do I sign up?

If you decide to publish with the Radboud Dissertations Series at Radboud University Press, please email us at  [email protected] . Please include the following details in your email:

What does it cost?

Our services are free. The entire sum that you would otherwise be able to claim from the university for the printing of your thesis goes directly from the faculty to Radboud University Press. 

I don't have a date yet, can I still sign up?

Yes! As soon as you have submitted your manuscript to the manuscript committee, you can sign up by sending an email to [email protected] .

Do you also handle the design?

Yes. The interior and the cover will be designed by our team of designers. Covers are placed in a template where, among other things, the Radboud University Press logo and the research institute are mentioned. For examples of our templates, see our information flyer page 5 .

I've already designed the interior myself. Can I still participate?

Yes. Even if the interior has already been finalised, for example in LaTeX, you can still use the Radboud University Press publishing service. Our designers will guide you in correctly submitting the documents. Covers are placed in a template where, among other things, the Radboud University Press logo and the research institute are mentioned. For examples of our templates, see our  information flyer page 5 .

How should I submit my materials?

After the registration process, one of our designers will contact you regarding the correct submission of the documents. Try to minimize any personal formatting of the document and preferably use the heading structure of Microsoft Word. For more information, see page 6 of our information flyer .

Any other questions? Please email us at  [email protected]

• Help & FAQ

Hard to handle. Inducible defences in plankton

Research output : PhD Thesis › PhD thesis

Access to Document

• http://hdl.handle.net/2066/19587 Licence: CC BY

Fingerprint

• plankton Agriculture & Biology 100%
• food chain Agriculture & Biology 96%
• Rotifera Agriculture & Biology 83%
• Scenedesmaceae Agriculture & Biology 53%
• algae Agriculture & Biology 48%
• Brachionus calyciflorus Agriculture & Biology 44%
• zooplankton Agriculture & Biology 31%
• morphs Agriculture & Biology 29%

T1 - Hard to handle. Inducible defences in plankton

AU - Verschoor, A.M.

N1 - 35 NIOO Thesis

PY - 2005/2/17

Y1 - 2005/2/17

N2 - Many species of the phytoplankton family Scenedesmaceae are able to develop multicellular colonies in the presence of freshwater zooplankton, and to go back to the unicellular morph when no grazers are around. The proportion of colonial morphs appears to be related to the actual grazing presure of zooplankton. Colony size in Scenedesmus obliquus appears to increase the food handling time of the herbivorous rotifer Brachionus calyciflorus, and thus has a defensive advantage. On the other hand, the disadvantage of colony formation is that it increases the sedimentation rate of these algae and that colonies have higher maintenance costs. Simulation models of plankton food chains consisting of either undefended, constitutively defended or inducible defended algae, herbivorous rotifers and carnivorous rotifers have been developed. Analysis of these models revealed that in food chains consisting of species with inducible defences, bottom-up control and the average biomass of the different trophic levels increase gradually in response to increasing carrying capacity. This was in sharp contrast to the 'classical' step-wise fashion of biomass increase with resource enrichment, and shifts between bottom-up and top-down control with increasing food chain length, which were observed in the food chains with undefended and constitutively defended species. Experiments done on the dynamics of bi- and tritrophic food chains with undefended and inducible defended Scenedesmaceae, herbivorous rotifers (B. calyciflorus) and carnivorous rotifers (Asplanchna brightwelli) revealed strong population fluctuations in food chains with undefended algae, which did not occur when algae had inducible defences. Thus, inducible defences increased the stability of the system by preventing strong population fluctuations. Furthermore, inducible defences promoted species persistence by preventing stochastic extinctions due to these strong fluctuations. In summary, inducible defences add a new perspective on the structure and behaviour of the more complex communities that we observe in nature.

AB - Many species of the phytoplankton family Scenedesmaceae are able to develop multicellular colonies in the presence of freshwater zooplankton, and to go back to the unicellular morph when no grazers are around. The proportion of colonial morphs appears to be related to the actual grazing presure of zooplankton. Colony size in Scenedesmus obliquus appears to increase the food handling time of the herbivorous rotifer Brachionus calyciflorus, and thus has a defensive advantage. On the other hand, the disadvantage of colony formation is that it increases the sedimentation rate of these algae and that colonies have higher maintenance costs. Simulation models of plankton food chains consisting of either undefended, constitutively defended or inducible defended algae, herbivorous rotifers and carnivorous rotifers have been developed. Analysis of these models revealed that in food chains consisting of species with inducible defences, bottom-up control and the average biomass of the different trophic levels increase gradually in response to increasing carrying capacity. This was in sharp contrast to the 'classical' step-wise fashion of biomass increase with resource enrichment, and shifts between bottom-up and top-down control with increasing food chain length, which were observed in the food chains with undefended and constitutively defended species. Experiments done on the dynamics of bi- and tritrophic food chains with undefended and inducible defended Scenedesmaceae, herbivorous rotifers (B. calyciflorus) and carnivorous rotifers (Asplanchna brightwelli) revealed strong population fluctuations in food chains with undefended algae, which did not occur when algae had inducible defences. Thus, inducible defences increased the stability of the system by preventing strong population fluctuations. Furthermore, inducible defences promoted species persistence by preventing stochastic extinctions due to these strong fluctuations. In summary, inducible defences add a new perspective on the structure and behaviour of the more complex communities that we observe in nature.

M3 - PhD thesis

PB - Radboud Universiteit Nijmegen

CY - Nijmegen

• Subject guides
• Announcements

Subject guide

Bachelor and Master theses of Leiden Universtity

As a rule, printed BA and MA theses were not included in the library collection. Starting 2010, BA and MA theses of the Faculties of Archaeology, Humanities, and Social and Behavioural Sciences are included in the Student Repository of Scholarly Publications. These theses are not included in the catalogue, but the titles can be found in Google Scholar.

If you are looking for an unpublished thesis it is advised to contact the secretariat of the department where the author of the thesis concerned has graduated.

At the Wijnhaven library you can find theses of Public Administration that were handed in between 2010 and 2011. The theses are available for loan.

Bachelor and Master theses of other Dutch universities

Erasmus University Thesis Repository

Radboud Educational Repository

TU Delft Education Repository

University of Groningen Thesis Research Portal

Utrecht University Student Theses Repository

UvA Scripties Online

VU Online Scriptiedatabase

Leiden PhD theses

Digitized Recent PhD theses (from approximately 2005 on) by Leiden PhD students are available digitally through Scholarly Publications . The site offers free access to these PhD theses. However, in some cases a thesis may be under embargo temporarily and access to its full-text version will only be granted later. Printed All Leiden PhD theses are included in the Catalogue , file tab Leiden Collections. Narrow down your question by typing dissertation  in a second search field.

Dutch PhD theses

Recent PhD theses (from approximately 2005 on) from all universities in the Netherlands are available digitally through OpenAire , a database with free access. However, in some cases also here a thesis may be under embargo temporarily and access to the full-text version of the thesis may only be granted at a later date.

For paper versions of Dutch PhD theses that cannot be found in the Catalogue  refer to WorldCat . This database contains the holdings of all Dutch university libraries and the Koninklijke Bibliotheek. 

International PhD theses

Many recent scientific publications, including PhD theses, are offered full-text in repositories on the internet, free of charge. The websites mentioned below offer access to collections of repositories:

The British site OpenDOAR (The Directory of Open Access Repositories)  offers access to more than 1500 repositories world-wide. All included repositories have been reviewed and approved by OpenDOAR staff members. The site maintains a user-friendly interface.

OATD (Open Access Theses and Dissertations) is a resource maintained by several US University Libraries, for finding open access graduate theses and dissertations published around the world. OATD tries to index only graduate-level theses and dissertations that are freely available to download, they leave out closed-access and embargoed ETDs.

The British site ROAR (Registry of Open Access Repositories) also offers access to repositories world-wide, but, contrary to OpenDOAR, is filled automatically.

OpenAIRE (Open Access Infrastructure for Research in Europe) gives an overview of, and offers access to more than 8.000.000 of Open Access publications from 460+ data providers, with links to funding, datasets and more.

OIAster (originally a project by Michigan University, USA) offers access to scientific publications world-wide. Since December 2009 this database has been integrated in WorldCat .

DART-Europe   is a webportal that provides access to more then 360.000 scientific dissertations from more then 500 European universities. DART stands for Digital Archive of Research Theses

EBSCO Open Dissertations : a free database containing hundreds of thousands digital dissertations and theses. Its contents are harvested from repositories of research universities from around the world.

Through the Catalogue (tab Database Search) you are offered access to the following databases of PhD theses:

China Dissertations : contains full-text PhD theses from 1999 on. Access only with a ULCN account and matching password.

Proquest Dissertations & Theses Global  database with data (not full-text, but abstracts) of mainly North American PhD theses beginning in 1637.  It is possible to order the full-text on payment. Access only available with a ULCN account and matching password.

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