Essays about: "time foraging"
Showing result 1 - 5 of 98 essays containing the words time foraging.
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1. Diving Deep: Seabird foraging tactics and local prey field
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Foragers in patchy environments need to decide what patches to use and how to allocate their time between them. Optimal foraging theory describes these choices through the relationship between energy expenditure and energy gain. READ MORE
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2. Egg-laying and nesting behavior of common eider at Stora Karlsö
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : The population of common eider (Somateria mollissima) has suffered a dramatic decline in several breeding locations since the 1990s. Predation is described as one of the main reasons, along with other suggested explanations such as food shortage, environmental pollutants, and thiamine shortage. READ MORE
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3. Clear as a Bell : A sensory and aesthetic history of timekeeping and eco-social relations in Uppsala and the world
University essay from Uppsala universitet/Institutionen för arkeologi och antik historiaAbstract : Methods of timekeeping have changed drastically throughout history and especially in the last century, as has humanity’s relationship to nature. Building upon existing research into the history of clocks and clock-time this study sketches a long-term chronology with a novel environmental, sensory, and aesthetic analysis. READ MORE
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4. Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall Abstract Unintentional by-catch in fishing gear is a significant cause of mortality of harbour porpoises in UK waters. Understanding the spatial distribution of harbour porpoises at fine scales and how this changes over time is essential when trying to understand where these lethal interactions might occur. READ MORE
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5. Optimal foraging in an Arctic herbivore : How does the foraging behaviour of Svalbard reindeer (Rangifer tarandus platyrhynchus) respond to seasonal changes from summer through autumn of the Arctic tundra?
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Foraging decisions of large herbivores can be affected by many factors and have great effect on both above- and below-ground ecosystems. Here, I determine to which degree temporal (seasonality), or spatial (habitat) factors influence the foraging behaviour of Svalbard reindeer (Rangifer tarandus platyrhynchus) and asses if small-scale foraging behaviour correlates with an animals’ patch residence time. READ MORE