Essays about: "bird migration"

Showing result 1 - 5 of 15 essays containing the words bird migration.

1. 1. Temporary Halting of Wind Turbine Rotors toMitigate Effects on Birds

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Ola Hedberg; [2024]
   Keywords : Bird; mitigation; effect; wind farm; turbine; wind power; halting; collision; risk; birds; power; generation;

   Abstract : This study assesses the viability of temporarily halting wind turbine operations as amitigation measure to protect bird populations during migration periods. Conducted in thenorthern Baltic, it examines the migration patterns, timings, and altitudes of various birdspecies, aiming to identify the most critical times for implementing turbine stoppages. READ MORE

3. 2. The perfect wing, The perfect trade-off? : What implements the main selection pressure on wing morphology?

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Emme MacDonald; [2023]
   Keywords : Bird; wing morphology; migration; habitat; aspect ratio; wing loading;

   Abstract : Selection pressure is a constant force in evolution, pushing birds and their wings towards an optimal shape and structure, were increasing performance, and minimizing the costs is central. But even though the science of aerodynamics can provide calculations of the optimal construction for the wing in different situations this rarely directly correspond to what is observed in nature. READ MORE

4. 3. Conservation Genomics of the Long-tailed Duck

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Brynhildur Magnúsdóttir; [2021]
   Keywords : Long-tailed duck; migration; conservation; population structure; genome;

   Abstract : With increasingly warming climate, many bird species have been forced to respond to environmental changes, and the long-tailed duck (Clangula hyemalis) is no exception. The populations of the long-tailed duck have been in decline the past few decades and the species is classified as globally vulnerable and near threatened in both Iceland and Sweden. READ MORE

5. 4. The effect of temperature on productivity of birds in Sweden and Finland

   University essay from Linköpings universitet/Biologi

   Author : Johanna Orsholm; [2019]
   Keywords : Birth rate; Global warming; Reproductive success; Species traits; Climatic niche; Multiple breeding; Breeding success;

   Abstract : Anthropogenic climate change is one of the most important factors influencing population growth and survival. Therefore, to be able to predict the effect of climate change on ecosystem composition and function, it is important to understand its effect on demographic variables, such as productivity. READ MORE

6. 5. Modelling Water Exchange in the Flommen Lagoon, South Sweden

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Shuwei Wang; [2019]
   Keywords : Water exchange; Coastal lagoon; The Flommen Lagoon; The Falsterbo Peninsula; Longshore sediment transport; Numerical modelling; Inlet morphology; Technology and Engineering;

   Abstract : The Flommen Lagoon in southern Sweden is surrounded by several natural reserves and is an important bird migration site on the edge of the continent. The protection of this area including water quality in the lagoon and flooding problems in the adjacent area has always been a concern. READ MORE