This community contains the ePrints and eTheses of Biological and Environmental Sciences staff and students.
First paragraph: Though it can still be found in the forests of Europe, the Eurasian lynx has not been seen in the UK for more than 1,000 years. This medium-sized wild cat with its distinctive pointy ears was driven to extinction during the medieval period, thanks to low numbers of its preferred prey, roe deer, as well as a disappearing habitat and excessive hunting. But recently the Lynx UK Trust has argued strongly for its reintroduction.
Automatic detection of icebergs in satellite images is regarded a useful tool to provide information necessary for safety in Arctic shipping or operations over large ocean areas in near-real time. In this work, we investigated the feasibility of automatic iceberg detection in Sentinel-1 Extra Wide Swath (EWS) SAR images which follow the preferred image mode in operational ice charting. As test region, we selected the Barents Sea where the size of many icebergs is on the order of the spatial r...
Phenology is increasingly recognised as an important indicator to measure the impacts of global environmental change. Changes to the phenology of tropical ecosystems are likely to have wide-reaching impacts on species, human society and even feedback onto climate. However, tropical phenology data are often unavailable and analyses have been constrained by dependence on geographically limited, noncircular indicators and lack of power in statistical analyses. This thesis addresses these c...
Aims. We investigate the influence of three basic factors on water production rate as a function of heliocentric distance: nucleus shape, the spin axis orientation, and the distribution of activity on a comet's surface. Methods. We used a basic water sublimation model driven by solar insolation to derive total production rates for different nuclei shapes and spin axis orientations using the orbital parameters of 67P/Churyumov-Gerasimenko. We used known shape models derived from prior missio...
Stakeholder cooperation can be vital in managing conservation conflicts. Laboratory experiments show cooperation is less likely in the presence of uncertainty. Much less is known about how stakeholders in real-life conservation conflicts respond to different types of uncertainty. We tested the effects of different sources of uncertainty on cooperative behaviour using a framed field experiment and interviews. The experiment compared a baseline scenario of perfect certainty with scenarios inclu...
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