Search for dissertations about: "Blood parasites"

Showing result 1 - 5 of 81 swedish dissertations containing the words Blood parasites.

  2. 1. Causes and consequences of blood parasite infections in birds

    Author : Martin Stjernman; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Animal physiology; Djurfysiologi; Parasitologi människa och djur ; Parasitology human and animal ; maternal transfer; stabilising selection; parasite resistance; parasites; trade-off; cost of reproduction; Ficedula hypoleuca; pied flycatcher; Haemoproteus; blue tit; Parus caeruleus;

    Abstract : Parasites are ubiquitous and can cause significant fitness reductions to their hosts. Therefore, selection for the evolution of host resistance should be strong. However, resistance may be costly and should be traded-off against other fitness related traits. READ MORE

  4. 2. Haemoprotozoan Parasites of Non-Human Primates in Kenya : Studies on Prevalence and Characterization of Haemoprotozoan Parasites of Wild-Caught Baboons, African Green Monkeys and Syke's Monkeys

    Author : Maamun Jeneby; Marita Troye; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; haemoprotozoan parasites; nonhuman primates; Kenya; Microbiology; immunology; infectious diseases; Mikrobiologi; immunologi; infektionssjukdomar; Försöksdjursvetenskap - Jämförande medicin; Comparative Medicine;

    Abstract : This thesis reports on cross-sectional surveys aimed at detecting and characterizing haemoprotozoan parasites infecting wild free-ranging non human primates (NHPs) in Kenya, East Africa. Blood samples from olive baboons (Papio cynocephalus anubis), vervet monkeys or African green monkeys (AGMs, Chlorocebus aethiops) and Syke's monkeys (Cercopithecus mitis) from five provinces of Kenya were analyzed. READ MORE

  5. 3. On the Effects of Blood Parasites in Wild Birds

    Author : Peter Halvarsson; Jacob Höglund; Staffan Bensch; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Atoxoplasma; avian malaria; coccidia; Gallinago media; Haemoproteus; Leucocytozoon; parasite prevalence; Passer montanus; Plasmodium; recapture mod-els; survival; Biologi med inriktning mot populationsbiologi; Biology with specialization in Population Biology;

    Abstract : Coccidian and haemoatozoan parasites are commonly occurring endo-parasites in wild birds and prevalence can vary among species and populations. In addition to prevalence studies, parasites are often used to investigate effects on life history traits. READ MORE

  6. 4. Indirect effects of river regulation : consequences for landbirds of reduced numbers of aquatic insects

    Author : Darius Strasevicius; Björn Malmqvist; Tapio Eeva; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Boreal region; Simuliidae; Leucocytozoon; pied flycatcher; aquatic insects; breeding success; blood parasites; bird communities; river regulation; impoundment; Biology; Biologi;

    Abstract : Abstrakt: Jag har undersökt hur älvreglering påverkar mängden knott (Tvåvingar: Simuliidae) längs flera norrlandsälvar och vilka konsekvenser denna påverkan får för den landlevande fågelfaunan. Studien visar att utbyggnad av älvar har en negativ effekt på mängden knott. READ MORE

  7. 5. Avian malaria, life-history trade-offs and interspecific competition in Ficedula flycatchers

    Author : Katarzyna Kulma; Anna Qvarnström; Marlene Zuk; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Blood parasites; competitive asymmetry; immunocompetence; interspecific competition; life-history trade-offs; MHC; parasite-driven selection;

    Abstract : This thesis investigates the impact of avian malaria (Haemosporidia) parasites on the outcome of interspecific competition between two closely related bird species, pied (Ficedula hypoleuca) and collared (F. albicollis) flycatchers. READ MORE