Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway
Tese de doutoramento em Biociências, na especialidade de Ecologia, apresentada ao Departamento de Ciências da Vida da Faculdade de Ciências e Tecnologia da Universidade de Coimbra For long-distance migrant birds, ecological changes along the flyway and strenuous work, can unbalance immune investment...
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ftunivcoimbra:oai:estudogeral.sib.uc.pt:10316/36848 2023-05-15T18:49:36+02:00 Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway Pardal, Sara Lopes Ramos, Jaime A. Westerdahl, Helena 2017-09-14 http://hdl.handle.net/10316/36848 por por info:eu-repo/grantAgreement/FCT/SFRH/SFRH/BD/84629/2012/PT PARDAL, Sara Lopes - Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway. Coimbra : [s.n.], 2017. Tese de doutoramento. Disponível na WWW: http://hdl.handle.net/10316/36848 http://hdl.handle.net/10316/36848 101557027 info:eu-repo/semantics/embargoedAccess Ecoimmunology long-distance migration waders pathogen pressure innate immunity adaptive immunity molecular evolution Ecoimunologia migradores de longa distância limícolas pressão parasítica imunidade inata imunidade adaptativa evolução molecular Domínio/Área Científica::Ciências Naturais::Ciências Biológicas info:eu-repo/semantics/doctoralThesis 2017 ftunivcoimbra 2022-08-11T13:57:41Z Tese de doutoramento em Biociências, na especialidade de Ecologia, apresentada ao Departamento de Ciências da Vida da Faculdade de Ciências e Tecnologia da Universidade de Coimbra For long-distance migrant birds, ecological changes along the flyway and strenuous work, can unbalance immune investments and thereby increasing the vulnerability to disease and reducing survival. Despite an essential self-maintenance component, immunity comes with costs as well as benefits. At an ecological context (i.e. limited energy), trade-offs are generated between immunity and other competing physiological components, leading to variations on immune response across time (annual-cycle) and space (different environments). Moreover, immune responses also vary between species and are optimized according to specific situations of an individual´s life, to maximize survival and fitness. Many ecoimmunology studies are focused on understanding the general patterns of immune responses in free-living birds, and what mechanisms mediate the changes in disease susceptibility, which in turn may affect population dynamics and survival. Information regarding these immunologic trade-offs remain largely unknown, and thus becoming of paramount importance when contextualized with climate change effects over migration ecology and the distribution of animal diseases. The work comprised in this thesis addressed the general question of how differences in environmental pathogen pressure shape the innate and adaptive immunity of a free-living bird species. The long-distance migrant Black-tailed godwit (Limosa limosa; hereafter godwit), was used as a study model, since the two subspecies, nominate (Limosa limosa limosa) and Icelandic (L. l. islandica), vary on migratory strategy and habitat-use, which consequently differ in pathogen pressure. Below, I summarize the main contributions of my work for the ecoimmunology research area. On chapter I, I tested whether the strength of immune response is indeed correlated with the environmental pathogen risk that ... Doctoral or Postdoctoral Thesis black-tailed godwit Limosa limosa Universidade de Coimbra: Estudo Geral |
institution |
Open Polar |
collection |
Universidade de Coimbra: Estudo Geral |
op_collection_id |
ftunivcoimbra |
language |
Portuguese |
topic |
Ecoimmunology long-distance migration waders pathogen pressure innate immunity adaptive immunity molecular evolution Ecoimunologia migradores de longa distância limícolas pressão parasítica imunidade inata imunidade adaptativa evolução molecular Domínio/Área Científica::Ciências Naturais::Ciências Biológicas |
spellingShingle |
Ecoimmunology long-distance migration waders pathogen pressure innate immunity adaptive immunity molecular evolution Ecoimunologia migradores de longa distância limícolas pressão parasítica imunidade inata imunidade adaptativa evolução molecular Domínio/Área Científica::Ciências Naturais::Ciências Biológicas Pardal, Sara Lopes Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway |
topic_facet |
Ecoimmunology long-distance migration waders pathogen pressure innate immunity adaptive immunity molecular evolution Ecoimunologia migradores de longa distância limícolas pressão parasítica imunidade inata imunidade adaptativa evolução molecular Domínio/Área Científica::Ciências Naturais::Ciências Biológicas |
description |
Tese de doutoramento em Biociências, na especialidade de Ecologia, apresentada ao Departamento de Ciências da Vida da Faculdade de Ciências e Tecnologia da Universidade de Coimbra For long-distance migrant birds, ecological changes along the flyway and strenuous work, can unbalance immune investments and thereby increasing the vulnerability to disease and reducing survival. Despite an essential self-maintenance component, immunity comes with costs as well as benefits. At an ecological context (i.e. limited energy), trade-offs are generated between immunity and other competing physiological components, leading to variations on immune response across time (annual-cycle) and space (different environments). Moreover, immune responses also vary between species and are optimized according to specific situations of an individual´s life, to maximize survival and fitness. Many ecoimmunology studies are focused on understanding the general patterns of immune responses in free-living birds, and what mechanisms mediate the changes in disease susceptibility, which in turn may affect population dynamics and survival. Information regarding these immunologic trade-offs remain largely unknown, and thus becoming of paramount importance when contextualized with climate change effects over migration ecology and the distribution of animal diseases. The work comprised in this thesis addressed the general question of how differences in environmental pathogen pressure shape the innate and adaptive immunity of a free-living bird species. The long-distance migrant Black-tailed godwit (Limosa limosa; hereafter godwit), was used as a study model, since the two subspecies, nominate (Limosa limosa limosa) and Icelandic (L. l. islandica), vary on migratory strategy and habitat-use, which consequently differ in pathogen pressure. Below, I summarize the main contributions of my work for the ecoimmunology research area. On chapter I, I tested whether the strength of immune response is indeed correlated with the environmental pathogen risk that ... |
author2 |
Ramos, Jaime A. Westerdahl, Helena |
format |
Doctoral or Postdoctoral Thesis |
author |
Pardal, Sara Lopes |
author_facet |
Pardal, Sara Lopes |
author_sort |
Pardal, Sara Lopes |
title |
Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway |
title_short |
Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway |
title_full |
Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway |
title_fullStr |
Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway |
title_full_unstemmed |
Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway |
title_sort |
ecoimmunology perspective of host-parasite interactions in limosa limosa across its migratory flyway |
publishDate |
2017 |
url |
http://hdl.handle.net/10316/36848 |
genre |
black-tailed godwit Limosa limosa |
genre_facet |
black-tailed godwit Limosa limosa |
op_relation |
info:eu-repo/grantAgreement/FCT/SFRH/SFRH/BD/84629/2012/PT PARDAL, Sara Lopes - Ecoimmunology perspective of host-parasite interactions in Limosa limosa across its migratory flyway. Coimbra : [s.n.], 2017. Tese de doutoramento. Disponível na WWW: http://hdl.handle.net/10316/36848 http://hdl.handle.net/10316/36848 101557027 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
_version_ |
1766243209548136448 |