Sökning: "Migration strategy"

Visar resultat 1 - 5 av 101 avhandlingar innehållade orden Migration strategy.

  1. 1. Vad är en neger? Negritude, essentialism, strategi : What is a Negro? Negritude, essentialism, strategy

    Författare :Mikela Lundahl; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; colonialism; racism; anti-racism; essentialism; anti-essentialism; Senghor; Césaire; negritude; Sartre; postcolonial; Spivak; strategy;

    Sammanfattning : The purpose of this study is to analyse the concept of negritude in texts written by Léopold Sédar Senghor and Aimé Césaire and how they used the word nègre in their anti-colonial struggle. Usually the negritude movement is seen as racial essentialistic and particularistic. LÄS MER

  3. 2. Ecology and evolution of large-scale bird migration patterns : A natural history and comparative study of the migration in common and little ringed plovers

    Författare :Linus Hedh; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ringed plover; leap-frog migration; migration speed; migration process; light level geolocator; migration;

    Sammanfattning : Migration distance and seasonal redistribution patterns may vary between and within bird populations. A common pattern is leap-frog migration, in which northerly breeding populations migrate farther and winter south of more southerly breeding populations. LÄS MER

  4. 3. Adaptive flexibility in migratory behaviour of shorebirds

    Författare :Johanna Grönroos; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bird migration; compensation; departure decision; flight distance; migration speed; migration strategy; orientation; shorebird; stopover; wind drift; wind selectivity;

    Sammanfattning : The phenomenon of bird migration has long fascinated us humans and it has prompted questions like where do they go or come from and how do they find their way? Arctic shorebirds are well known for their spectacular long-distance migrations with some species travelling more than 10 000 km every spring and autumn, and some even cover this distance in one single nonstop flight. The aim of my thesis was to investigate the flexibility of Arctic shorebirds when it comes to orientation behaviour, departure behaviour and migration strategy. LÄS MER

  5. 4. Immigrants' income and family migration

    Författare :Saman Rashid; Thomas Aronssson; Björn Gustafsson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Immigrant; wage earnings; labour participation; family income; family investments; intenal migration; immigrant women; family migration; Nationalekonomi; Economics; Nationalekonomi; nationalekonomi; Economics;

    Sammanfattning : This thesis consists of three papers studying the economic situation of immigrants in Sweden in terms of wage earnings, labor participation and family internal migration. Paper [I] (http://www.econ.umu. LÄS MER

  7. 5. Strategy games; on survival and reproduction

    Författare :Helen Olofsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ekologi; Ecology; evolution of sexual reproduction; dormancy; game theory; migration; bet-hedging; Life history theory;

    Sammanfattning : Classical evolutionary life history concerns questions such as optimal timing of maturation, life span and number of offspring. These questions have mostly been studied theoretically under the assumption that the environment is stable and without taking into account frequency and density dependence. LÄS MER