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Repositório da UTAD
Master thesis . 2017
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Chewing lice in birds of Northern Greece

Authors: Soares, José Bernardo Pedroso Couto;

Chewing lice in birds of Northern Greece

Abstract

Nos últimos anos, os malófagos mastigados têm-se tornado objecto de extenso e inovadores estudos sobre a relação entre hospedeiro-parasita e a sua co-evolução. Adicionalmente a condição da população de passarideos é um indicador de alterações ambientais, devido à sua sensibilidade a efeitos negativos, tal como a poluição. Paralelamente o conhecimento dos níveis de infestação de hospedeiros passarideos por ectoparasites permite o uso destes dados como representativos do bem-estar ecológico do biotipo. No contexto da Grécia, esta área geográfica é de grande importância para espécies de passerideos migratórias e autóctones, pois proporcionando uma grande variedade de habitats. E com registros de 442 species de aves, das quais, 242 são autóctones, e as restantes migratórias. Apesar destes números, existe falta de dados relativamente à fauna de ftirápteros na Grécia. Logo, o objectivo principal deste trabalho é providenciar o primeiro estudo parasitológico de ectoparasites em aves. O trabalho de campo foi conduzido, em diversos locais, dentro dos Parques Nacionais de Koroneia e Volvi no Norte da Grécia. De 2013 a 2016, compreendendo 9 sessões captura ornitológica, nas quais foram examinados 729 espécies de aves e um total de 560 espécimes de malófagos foram coletados e examinados em condições laboratoriais. Este estudo parasitológico permitiu compreender melhor a relação entre hospedeiroparasita e descobrir novas associações. Adicionalmente, a revisão da relação entre Acrocephalus melanopogon e o complexo Philopterus sp., e re-descrever a espécie Philopterus acrocephalus. Os resultados, também, demonstraram ser similares a outros trabalhos em malófagos mastigadores em aves na Europa, os quais parecem apresentar uma aparente deterioração dos habitats. Em suma, o melhor conhecimento do complexo sistema de hospedeiro-parasita providencia ferramentas para o desenvolvimento de medidas de conservação ambiental e fauna selvagem.

In recent years, chewing lice have been the subject of extensive and innovative studies on host-parasite relationship and co-evolution (Smith, 2003). Furthermore, the fitness of the wild passerine population is an indicator of environmental changes as they sensitively react to pollution and other negative effects. Also, the knowledge concerning the infestation of passerine hosts by ectoparasites allows also the use of ectoparasites infestation as a sentinel of the overall ecological status of a biotope. Within the Greek context this geographical area holds a great importance local and migratory European bird species by providing a great variety of habitats. With a recorded 442 bird species, of which, 242 are locally breeding, while the rest are migratory birds. Despite this data concerning louse fauna of birds living in Greece are practically lacking. Hence the main aim of this work was to provide the first parasitological survey conducted on ectoparasites of birds. The field work was conducted, within several locations, inside Koroneia and Volvi National Park in Northern Greece. From 2013 to 2016, comprising 9 ornithological ringing sessions, where a total of 729 birds were examined and a total of 560 lice specimens were collected and further examined under laboratory conditions. This parasitological study allows to a better understanding of the host-parasite relations and discover new associations. Moreover, this study allowed a review of the association between Acrocephalus melanopogon and Philopterus-complex, and a redescription of Philopterus acrocephalus. The parasitological results also mimic other reports of bird’s chewing lice from Europe, that present a suggestive deterioration of habitats. Ultimately the better knowledge of the complex parasite-host systems may also provide tools for designing successful measures for wildlife and environment conservation.

Dissertação de Mestrado Integrado em Medicina Veterinária

Country
Portugal
Keywords

616-093/-098(43), Amblíceros, Interações hospedeiro-parasita, Parasitos, Iscnóceros, 636.6.09(043), 576.89(043), Parasitologia veterinária, Aves, Ftirápteros

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green