Search for dissertations about: "Acrocephalus arundinaceus"

Showing result 1 - 5 of 12 swedish dissertations containing the words Acrocephalus arundinaceus.

  2. 1. LIVING WITH PARASITES: AVIAN MALARIA, TELOMERE LENGTH AND LIFE HISTORY TRADE-OFFS

    Author : Asghar Muhammad; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Avian malaria; Plasmodium; qPCR; parasitemia; life history; reproduction; survival; feather growth; MHC; telomere length; heritability; telomere loss; fitness; wild population; Acrocephalus arundinaceus; Delichon urbica;

    Abstract : Haemosporidia is a well-studied group of parasites, which infect mammals, reptiles and birds and use blood sucking vectors for their transmission. By conducting natural population studies and experimental infections, We have been able to detect and quantify Haemosporidia from avian blood to investigate how these pathogens affect their avian hosts. READ MORE

  4. 2. Evolutionary dynamics of migration and breeding in wild birds: genetic architecture, sexual conflicts and evolutionary constraints

    Author : Maja Tarka; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantitative genetics; heritability; intralocus sexual conflict; antagonistic selection; QTL; G-matrix; wing length; arrival date; migration; geolocator; bird; Acrocephalus arundinaceus;

    Abstract : Our knowledge of the evolutionary potential of traits involved in different selective episodes, especially in natural populations, is still limited. This is true for questions such as the genetic basis and inheritance of traits, how natural and sexual selection acts on them, and how selective conflicts influence the evolutionary response to selection. READ MORE

  5. 3. Genomic studies of sex differences : On mutations, recombination, and sexual antagonism in songbirds

    Author : Hongkai Zhang; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; sex differences; mutation; recombination; sexual conflict; sexual antagonism; sexually antagonistic selection; Great reed warbler; Acrocephalus arundinaceus;

    Abstract : Many organisms have separate sexes, i.e., males and females. The presence of separate sexes causes sex-specific selection regimes and sexual antagonism, which can lead to sex differences in morphology, physiology, and behaviours. READ MORE

  6. 4. Telomeres in ecology and evolution: Hypotheses and connections between telomere length, infections and life history trade-offs

    Author : David Gomez Blanco; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; telomeres; life history; telomere elongation; telomere shortening; early-life telomere length; critical threshold; malaria infection; great reed warbler; Acrocephalus arundinaceus;

    Abstract : Studying life history strategies is crucial for understanding the diversity among organisms. The trade-offs in traits related to survival, self-maintenance and reproduction play an important role in the variation of life histories and can be adjusted in response to environmental and physiological factors. READ MORE

  7. 5. MHC diversity and expression in a songbird : Temporal and transgenerational variation

    Author : Samantha Mellinger; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MHC diversity; MHC-I gene expression; songbirds; genome assembly; amplicon HTS; temporal variation; family data; great reed warbler Acrocephalus arundinaceus ;

    Abstract : The immune system is of central importance to clear-off pathogens in order to keep an organism healthy. In vertebrates, the Major Histocompatibility Complex (MHC) is a genomic region that holds key genes involved in adaptive immunity and in particular in the antigen presenting process. READ MORE