Sökning: "remigration"

Hittade 3 avhandlingar innehållade ordet remigration.

  1. 1. Migration of Sea Turtles from Caribbean Costa Rica: Implications for Management

    Författare :Sebastian Troëng; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Animal ecology; conservation; predation; remigration; annual survival probability; mtDNA; satellite telemetry; tagging; Costa Rica; Tortuguero; endangered; migration; Djurekologi; sea turtles;

    Sammanfattning : Tortuguero National Park in Costa Rica hosts nesting by four species of highly migratory and endangered sea turtles (green, hawksbill, leatherback and loggerhead turtles). Sea turtle research at Tortuguero has been continuous since Dr. Archie Carr began studies in the 1950?s. LÄS MER

  3. 2. Food and Packaging Interactions Affecting Food Quality

    Författare :Fredrik Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sorbed vegetable oil; oxygen transmission rate; food packaging; supercritical fluid extraction; inertness test; refillable PET bottles; permeability; aroma; interactions; sorption;

    Sammanfattning : Food and packaging interactions that may impair the food quality have been studied and methods to determine these interactions have been developed. An off-line supercritical fluid extraction method using carbon dioxide was developed and used to extract sorbed low molecular weight compounds from polymer films. LÄS MER

  4. 3. Moving again : Studies of international return and onward migration

    Författare :Andrea Monti; Eleonora Mussino; Karen Haandrikman; Hill Kulu; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Repeat migration; re-migration; return migration; onward migration; register data; survey data; Sweden; Romania; Senegal; sociologisk demografi; Sociological Demography;

    Sammanfattning : Contemporary international migration is characterized by increasingly complex migration patterns, with high shares of re-migration, i.e., return and onward migration after an initial move. LÄS MER