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

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…

This thesis focuses on the social dimensions of crane and wetland conservation in rural landscapes in Kenya, Uganda and Zimbabwe.

Promotores: H.A. Udo De Haes, P.M. Brakefield

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. H. Leirs (Univ. Antwerpen)

Prof.dr. Geert de Snoo is per 1 maart bij de Faculteit der Wiskunde en Natuurwetenschappen benoemd tot hoogleraar Conservation Biology. De Snoo blijft hoofd van de gelijknamige afdeling van het Institute of Environmental Sciences (CML).

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

Plant diversity is essential for us and our planet as it sustains the stability of our ecosystems, provides vital materials and food to us and supports many ecosystem services.

Large carnivores and humans, along with their livestock, have co-existed for thousands of years. However, human population growth and an increase in economic activities are modifying the landscape for large carnivores and their prey.

Hortus botanicus Leiden is de eerste Nederlandse tuin die een accreditatie heeft ontvangen van Botanic Gardens International (BGCI). De Conservation Practitioner Accreditation is een certificaat waarmee het beleid, de kennis & kunde en het onderwijs met betrekking tot plantenbehoud op internationaal…

Promotores: E. van Dijk, G.R. de Snoo. Co-promotor: H. Staats

Leeuwen in West- en Centraal-Afrika vormen een unieke groep, die relatief weinig verwant is met leeuwen in Oost en zuidelijk Afrika. Biologen van de Universiteit Leiden bevestigen dit in een artikel gepubliceerd in Scientific Reports.

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…

Promotor: E.F. Smets, Co-promotor: T.R. van Andel

What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?

What is movements and corridors of the Bornean pygmy elephant in Sebuku forest? What is the nature of human-elephant conflict in Nunukan District in time and space? What are the diets of the Bornean elephants related to crop raiding?

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

Large carnivore population is globally declining as a result of the fragmentation of habitat, large prey depletion and retaliatory killing by pastoralists.

Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster

Tijdens zijn bezoek op 12 april 2016 is Dr. Jatna Supriatna aangesteld als gastonderzoeker bij de Faculteit der Wiskunde en Natuurwetenschappen van de Universiteit Leiden. Dr. Supriatna is een bioloog en is universitair hoofddocent bij de Opleiding Biologie van Universitas Indonesia. Zijn aanstelling…

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

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.

Natural resources often stretch across borders that separate modern nation states. This can create conflict and limit opportunities for regulated consumption of their goods and services, but also provide opportunities for joint multinational efforts that exceed single country capabilities.

What is the population size and social structure in time and space? What is the lion diet and food preference in time and space? What is the home range (MCP and Kernel) and movement in time and space? What are human – lion conflict and responses of lions to traditional herding in time and space? What…

Does knowledge of environmental performance change farmer's behaviour?

A recent study on reintroduced tigers in Panna Tiger Reserve in India reveals that risks from tigers increased more because of human behaviour and people's livestock husbandry practices.

Promotor: Erik F. Smets, Co-promotores: Barbara Gravendeel, Niels Raes

We show that Kirchhoff ’s law of conservation holds for non-commutative graph flows if and only if the graph is planar. We generalize the theory of (Euclidean) lattices to infinite dimension and consider the ring of algebraic integers as such a lattice.

Lezing, Lezing onderdeel van serie

Onderzoek naar flora en fauna met oog voor economische belangen én samenwerking met de lokale bevolking. Dit is allemaal gebundeld in een samenwerkingsprogramma van de Anton de Kom Universiteit van Suriname en Universiteit Leiden. Samenwerken op basis van gelijkheid staat voorop. ‘Een lastige uitdaging,…

Het was lange tijd één van de meest bedreigde diersoorten ter wereld. Ruim tien jaar geleden dacht men zelfs nog dat hij was uitgestorven: de Filipijnse krokodil.

How can we quantify the density of species within a community through environmental DNA concentrations?

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?

PNEC-pro is a user-friendly screening tool for professionals dealing with the assessment of surface water quality. The tool calculates local, watertype specific no-effect concentrations (PNEC) of copper, lead, nickel and zinc based on biotic ligand models (BLMs).

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema

Does roadside management in the mid-west USA increase invertebrate diversity similar to practices in Europe?

Promotor: G.R. de Snoo, W. Kustiawan, Co-promotor: H.H. de Iongh

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

Promotor: Prof.dr. M.L. van Heck, Co-Promotor: B.P. Tighe

De zeldzame Ethiopische wolf komt steeds vaker in aanvaring met lokale veehouders. Promovendus Girma Eshete zocht naar manieren om het elegante beest te redden van de ondergang. Promotie op 5 september.

Vooral neerslag en bodemzuurgraad bepalen welke microben in een bepaalde habitat overleven en welke niet. Deze kennis is van belang om de biodiversiteit in stand te houden. Leidse milieukundigen werkten mee aan het onderzoek. Publicatie in Nature op 1 augustus.