Pollinator biodiversity has decreased in the past decades, but urban areas have increasingly been found to serve as a refuge when compared to the surrounding intensively managed farmland. This offers an opportunity for urban pollinator conservation to play a role in the conservation of pollinators. But …

Climate change is a major threat for the Hawksbill turtle (Eretmochelys imbricata). A lot of research has been done on the possible effects, but a clear overview is still lacking. This literature review aims to provide an overview of the effects of climate change on the nesting success, sex ratio and …

In Amsterdam we have been working with a diversity of partners in the city for more than a decade now. Our study and research in our research group Cities & Visitors have been focused on the image and reputations of our cities, including the image and reputation of different areas of the city itself. …

The natural value of Dutch sandy beaches has been declining for decades. These relatively unstable, low nutritious, wave-washed environments lack the primary producers that represent the base of the food web. Thus, the sandy beach food web relies almost entirely on nutrient influx of other systems. Beside …

Urban areas are growing faster and in many cases create a fragmented landscape, threatening biodiversity. There are numerous organisms that can adapt to urbanization, such as insects. Multiple studies show a worldwide decline in their numbers. Insects are indispensable because of their important ecosystem …

Due to their high adaptability and opportunistic predation behaviour feral cats have a great impact on worldwide bird biodiversity in particular on islands. However not much is known about their actual behaviour and time budget, as direct behavioural observations often are difficult regarding free-ranging …

This graduation paper is an evaluation of the chain of biomass at Staatsbosbeheer. The goal is to get a grasp on all its variables. So that decisions now made out of experience could be found to indeed be the right ones. By naming all the variables and trying to link them to each other, a better insight …

De populatie weidevogels in Nederland is de afgelopen 20 jaar afgenomen. Deze negatieve trend geldt ook voor de populatie in Noord-Nederland. Er zijn een aantal oorzaken aan te wijzen voor de afname van de weidevogels. De hoge kuikensterfte door onder andere predatie en het gebruiken van efficiënte landbouwmachines, …