Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

A new plant species was named after Paul Kessler, prefect of the Leiden Hortus botanicus. Kessler discovered the small tree, which is related to the kiwifruit, himself.

Description of Effects of glufosinate-ammonium on off crop vegetation.

Ethiopian wolves are endangered diurnal Afroalpine rodent hunters. I investigated the interaction between wolves, rodents and human land use in Borena Sayint National Park (BSNP), Abune Yosef and Aboi Gara in Ethiopia.

1: What is the relative importance of alfa and beta biodiversity in polar ecosystems, and how does intraspecific variation influence this? 2: How can we use remote sensing to determine functional biodiversity (within communities) in polar ecosystems? 3: Temporal and spatial scales of functional biodiversity:…

Promotor: F.P. Israel, Co-Promoter: R. Meijerink

Does a moving hybrid zone leave a genomic footprint?

Where did species survive the cold cycles of the current Ice Age?

What invertebrates live in the fields and edges? Do the populations change with landscape complexity?

Do selenium nanoparticles in fish food cause subtle alterations in behavior of fish: effect of particles size and concentration?

Proceedings of the International Colloquium Leiden, May 29 and 30, 2008

The Supplementa series of BABESCH is designed as a platform for thematic publications, in juxtaposition to the annual and varied mix of contributions offered by the journal itself. The thematic publications will include proceedings of colloquia, collections of particular studies by one or more authors,…

As of 1 September, Ton van Kalmthout has been appointed professor by special appointment of International Exchange of Dutch Literature in a Historical Perspective. In addition to his research into the import and export of Dutch literature, Van Kalmthout will also teach at Leiden University.

Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.

Nitrogen deposition does not only affect plant biodiversity, but also strongly affects the composition of the remainder of the food web, through the changes in plant composition. In an unprecedented analysis of population changes of butterfly and moth species, an international research team including…

Promotor: Prof.dr. E.F. Smets, Co-promotores: Dr. B. Gravendeel, F. Pupulin

Animal species that are dear to us in the Netherlands often spend a large part or all of their lifecycle in other parts of the world. But their habitats worldwide are under increasing pressure, are often inadequately protected and much poorer than the global average. ‘If we truly care about these animals,…

The world we live in is changing in many aspects at an ever-increasing speed. And it will continue to do so. How do we anticipate these changes, such as the increase in atmospheric CO2, the extinction of species and industrialisation?

Living labs make it possible for citizens to participate in research for sustainable development of their environment. This way citizens, together with scientists and stakeholders, create local conditions for food production, healthy environment, and biodiversity.

Does a high quality prairie restoration in an urban/agricultural landscape provide invertebrates necessary for a sustainable ecosystem?

Promotor: Prof.dr. G.R. de Snoo

Taxonomy as a science has accumulated data and knowledge for more than 250 years.

Promotores: G.A. Persoon, H.H. de Iongh

Female and male songbirds sing equally elaborate songs in some species, but in others, females do not sing like males or not at all. How did such pronounced differences in male and female communication evolve?

How has early development in R. ocellatus been modified as a result of its parasitic embryonic lifestyle?

This research programme aims to increase the scientific understanding of how current and emerging anthropogenic threats affect biodiversity and ecosystem services to facilitate strategic management of natural resources. To this end, we address urgent challenges in relation to the mechanisms involved…

Description of 20th century changes in the Dutch flora: Description and interpretation (1999 - 2005)

Promotores: J.A.van Veen, P.L.G.Klinkhamer. Co-promotor: E.E.Kuramae

Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver

This part of the research programme is carried out by Prof. Dr. René Cappers. It focusses on the continuities and changes in the use of plants at Late Neolithic Tell Sabi Abyad, as well as on their implications as proxy evidence for the climate change c. 6200 BC. Parallel to the design of the other…

This part entails the analysis of an extensive sample of animal bone (c. 30,000 pieces) retrieved from well-defined archaeological contexts of the early period at Tell Sabi Abyad, c. 6800-6200 BC. It comprises aspects of taphonomy, ageing and osteometry, the reconstruction of the local spectrum of domestic…

Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

This PhD subproject concentrates on 16th-century ichthyology and takes Gessner’s Historia piscium (1558) (further HP) as its point of departure and focus.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

Plant Sciences' contribution to the Evolution & Biodiversity research theme is to understand what are the key drivers of plant biodiversity during evolution with a focus on plant life history and resilience traits and develop tools to restore and maintain plant biodiversity.

Wiskunde en Natuurwetenschappen, Centrum voor Milieuwetenschappen Leiden (CML)

Birds sing to be heard, but how do they cope with increasing noise levels? Which species persist in cities and why? And do they thrive or suffer in the urban soundscape?

This article traces the evolution of interpretations of international law and international cyber norms on responsible state behaviour in cyberspace by reassessing five major – and allegedly state-led – cyber operations: Stuxnet 2010; Belgacom 2013-2014, the Ukrainian power grid 2015, the US presidential…

What is vegetation structure and composition in SFM primary forest, secondary logged over forest (logging FSC certified and logging non certified) in comparison to primary forest? What is avian guild diversity in SFM primary forest, secondary logged over forest (logging FSC certified and logging non…

Promotor: Prof.dr. F.S. de Boer

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.