How are links between macro-invertebrate diversity and ecosystem functioning influenced by anthropogenic pressures?

What are trait-trait relationships in wetlands? To what extent the so-called leaf economics traits deviate from terrestrial ecosystems? How traits specific to wetland plant relate to plant strategies? What’s the relationship between wetland plant traits to the ecosystem functioning (e.g. productivity,…

Hogere temperaturen leiden wereldwijd tot veranderingen in de vegetatie en de bodem van berggebieden. Een internationaal onderzoeksteam met de Leidse ecoloog Ellen Cieraad publiceerde op 25 januari in Nature over de verstoring van het ecosysteem.

How can ecosystem services within river catchments be quantified in spatial and temporal explicit way?

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:…

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

Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh

Acidobacteria is a widely distributed phylum but their functional roles in ecosystem processes are still largely elusive.

De afdeling Environmental Biology (CML-EB) houdt zich bezig met vraagstukken rondom biodiversiteit en natuurlijke hulpbronnen op het platteland in westerse en niet-westerse gebieden.

While ecosystems have concrete benefits for human society, these benefits are typically overlooked in decision-making.

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

Do sustainability values play a role in motivating people to act for biodiversity in successful projects and in successful leadership action? And how could these values be incorporated in current economic valuation methods?

Promotor: E.F. Smets, Co-promotor: J. Geml

Promotores: G.R. de Snoo, W.T. de Groot, Co-promotor: C.J.M. Musters

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

Vast, often populated, areas in dryland ecosystems face the dangers of desertification.

Promotores: H.W. Lenstra, A. Lucchini

Do Ethiopian wolves change their diet and foraging strategy in the landscape under different land uses? How land use affect Afro-alpine rodent Communities? How important are Afro-alpine natural resources utilisation for local livelihoods? What is the human perception of conflict in the Afro-alpine a…

How can mega sand nourishments, such as the Sand Motor, be designed and managed for optimal ecosystem services provision ?

Developing methodes to understand the evolution of patches in natural ecosystems

Hoe kunnen we onze maatschappij zo inrichten dat de wereld leefbaar blijft voor onszelf en al het andere leven om ons heen? Aan dat vraagstuk werken Leidse wetenschappers samen vanuit allerlei disciplines, van biologie tot datawetenschap en van milieueconomie tot archeologie.

Promotor: S.J. Edixhoven, Co-promotor: K.J. Batenburg

Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver

Promotor: Prof.dr. P. Stevenhagen, Co-Promotor: J.H. Evertse

Shape and biological function are tightly connected. Physical descriptions are used to connect the shape of a biological system with its function.

Promotie

Lezing

If X is a locally compact Hausdorff space, then a representation of the complex C* algebra C_0(X) on a Hilbert space $H$ is given by a spectral measure that takes its values in the orthogonal projections on $H$.

1) Assess the trends in supply and production status of these critical minerals and mineral products worldwide and Europe’s dependence including on intermediate products such as permanent magnets, RE based super alloys, batteries, polishing compounds, phosphors, catalysts etc. 2) Trace the entire value…

Jens Iverson, universitair docent Internationaal recht en onderzoeker in het Jus Post Bellum project, heeft op 21 september 2017 zijn proefschrift verdedigd.

CML rapport 192

Promotor: Prof.dr. H.P. Spaink, Co-promotor: Dr. B.E. Snaar

Promotie

Het onderzoek in dit proefschrift kijkt naar de rol van het locus ceuruleus - noradrenalinesysteem in verscheidene aspecten van menselijke cognitie, en de modulatie van de staat van het brein.

Binnen de eerste subsidieronde van het NWO-onderzoeksprogramma Complexity is het project 'Critical transitions and early-warning signals in spatial ecosystems', gezamenlijk ingediend door Arjen Doelman, Jens Rademacher (CWI) en Max Rietkerk en Martin Wassen (beiden geowetenschappen, UU), gehonoreerd…

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.

In dit onderzoek wordt hersenontwikkeling voor het eerst direct gelinkt aan sekseverschillen en schoolprestatie. De resultaten ontkrachten de mythe dat jongens achterlopen in hersenontwikkeling.

Het terugdringen van agressie is in de afgelopen jaren in toenemende mate een maatschappelijke prioriteit geworden. Agressie in de vroege kindertijd vergroot de kans op latere agressieproblemen en antisociaal gedrag.