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  1. Article: Parasite island syndromes in the context of nidicolous ectoparasites: Fleas (Insecta: Siphonaptera) in wild passerine birds from Azores Archipelago

    Tomás, André / Pereira da Fonseca, Isabel / Valkenburg, Thijs / Rebelo, Maria Teresa

    Parasitology international. 2022 Aug., v. 89

    2022  

    Abstract: Island syndrome, previously established for isolation process of insular vertebrates' populations, have been adapted to insular parasites communities, termed parasite island syndromes. In this work, were studied for the first time the insular syndromes ... ...

    Abstract Island syndrome, previously established for isolation process of insular vertebrates' populations, have been adapted to insular parasites communities, termed parasite island syndromes. In this work, were studied for the first time the insular syndromes for nidicolous ectoparasites of the bird species, Turdus merula, Sylvia atricapilla, Fringilla coelebs and Erithacus rubecula from Azores and the mainland Portugal. Flea species were only recorded on Azorean birds, namely Dasypsyllus gallinulae and Ctenocephalides felis felis, known as not host-specific parasites. In the absence of shared flea species between mainland and islands birds, a comparison among our fleas prevalence to Azores Islands and mainland fleas prevalence, recorded to others European studies, showed that Azorean host populations undergo higher prevalence than the mainland one. This result was consistent with parasite island syndromes predictions recorded to ectoparasites, hippoboscid flies and chewing lice, that fleas have higher prevalence on the Azores Islands compared to mainland Portugal. However, our results provide a new perspective to parasite island syndromes assumptions, namely in the context of nidicolous ectoparasites that spend only brief periods on the hosts' body.
    Keywords Ctenocephalides felis felis ; Fringilla coelebs ; Hippoboscidae ; Sylvia atricapilla ; Turdus merula ; birds ; ectoparasites ; host specificity ; parasitology ; Azores ; Portugal
    Language English
    Dates of publication 2022-08
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1363151-2
    ISSN 1383-5769
    ISSN 1383-5769
    DOI 10.1016/j.parint.2022.102564
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Parasite island syndromes in the context of nidicolous ectoparasites: Fleas (Insecta: Siphonaptera) in wild passerine birds from Azores Archipelago.

    Tomás, André / Pereira da Fonseca, Isabel / Valkenburg, Thijs / Rebelo, Maria Teresa

    Parasitology international

    2022  Volume 89, Page(s) 102564

    Abstract: Island syndrome, previously established for isolation process of insular vertebrates' populations, have been adapted to insular parasites communities, termed parasite island syndromes. In this work, were studied for the first time the insular syndromes ... ...

    Abstract Island syndrome, previously established for isolation process of insular vertebrates' populations, have been adapted to insular parasites communities, termed parasite island syndromes. In this work, were studied for the first time the insular syndromes for nidicolous ectoparasites of the bird species, Turdus merula, Sylvia atricapilla, Fringilla coelebs and Erithacus rubecula from Azores and the mainland Portugal. Flea species were only recorded on Azorean birds, namely Dasypsyllus gallinulae and Ctenocephalides felis felis, known as not host-specific parasites. In the absence of shared flea species between mainland and islands birds, a comparison among our fleas prevalence to Azores Islands and mainland fleas prevalence, recorded to others European studies, showed that Azorean host populations undergo higher prevalence than the mainland one. This result was consistent with parasite island syndromes predictions recorded to ectoparasites, hippoboscid flies and chewing lice, that fleas have higher prevalence on the Azores Islands compared to mainland Portugal. However, our results provide a new perspective to parasite island syndromes assumptions, namely in the context of nidicolous ectoparasites that spend only brief periods on the hosts' body.
    MeSH term(s) Animals ; Animals, Wild ; Azores/epidemiology ; Flea Infestations/epidemiology ; Flea Infestations/veterinary ; Parasites ; Passeriformes/parasitology ; Siphonaptera ; Songbirds/parasitology
    Language English
    Publishing date 2022-02-24
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1363151-2
    ISSN 1873-0329 ; 1383-5769
    ISSN (online) 1873-0329
    ISSN 1383-5769
    DOI 10.1016/j.parint.2022.102564
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  3. Article: Louse flies in Azorean and mainland populations of four Passeriformes species: A new perspective to parasite Island syndromes

    Tomás, André / Pereira da Fonseca, Isabel / Valkenburg, Thijs / Rebelo, Maria Teresa

    International journal for parasitology. 2021 Apr., v. 14

    2021  

    Abstract: Hippoboscid flies, also known as louse flies, are obligate blood-feeders ectoparasites of birds and mammals. By studying louse fly parasites of four Passeriformes species, Eurasian blackbird (Turdus merula), Eurasian blackcap (Sylvia atricapilla), common ...

    Abstract Hippoboscid flies, also known as louse flies, are obligate blood-feeders ectoparasites of birds and mammals. By studying louse fly parasites of four Passeriformes species, Eurasian blackbird (Turdus merula), Eurasian blackcap (Sylvia atricapilla), common chaffinch (Fringilla coelebs) and European robin (Erithacus rubecula), with dissimilar time of colonization of Azores islands, we tested whether: (i) island host populations have lower parasite richness than the mainland one; (ii) island host populations undergo higher parasite prevalence, mean intensities and mean abundance than the mainland one; (iii) island parasite diversity are composed exclusively by specific parasites and (iv) parasite richness is positively correlated with the island area and proximity to the continent. For these purposes, 775 birds were sampled for presence of louse flies, by modified fumigation chamber method, from Azores Islands (São Miguel, Terceira and Flores) and Portugal mainland. Insular and mainland parasite assemblages were statistically compared. We record for the first time to Azores, Ornithomya fringillina and Icosta minor from Portugal mainland. Louse flies had highest prevalence and abundance from Azores Islands compared to those observed in mainland birds, especially blackbirds. The insular parasite diversity of Azores blackbirds, blackcaps and chaffinches was richer than the one observed in mainland population. None of the hippoboscid flies observed on the islands and mainland were host-specific. Thus, our findings provide an upgrade of parasite island syndromes knowledge, in the context of the ectoparasites, namely to the hippoboscid flies case.
    Keywords Fringilla coelebs ; Hippoboscidae ; Sylvia atricapilla ; Turdus merula ; ectoparasites ; fumigation ; host specificity ; parasitology ; Azores ; Portugal
    Language English
    Dates of publication 2021-04
    Size p. 33-40.
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2715239-X
    ISSN 2213-2244
    ISSN 2213-2244
    DOI 10.1016/j.ijppaw.2020.12.004
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Louse flies in Azorean and mainland populations of four Passeriformes species: A new perspective to parasite Island syndromes.

    Tomás, André / Pereira da Fonseca, Isabel / Valkenburg, Thijs / Rebelo, Maria Teresa

    International journal for parasitology. Parasites and wildlife

    2020  Volume 14, Page(s) 33–40

    Abstract: Hippoboscid flies, also known as louse flies, are obligate blood-feeders ectoparasites of birds and mammals. By studying louse fly parasites of four Passeriformes species, Eurasian blackbird ( ...

    Abstract Hippoboscid flies, also known as louse flies, are obligate blood-feeders ectoparasites of birds and mammals. By studying louse fly parasites of four Passeriformes species, Eurasian blackbird (
    Language English
    Publishing date 2020-12-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2715239-X
    ISSN 2213-2244
    ISSN 2213-2244
    DOI 10.1016/j.ijppaw.2020.12.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Departure Decisions of a Migratory Passerine, the Common Reed-Warbler Acrocephalus scirpaceus, in Relation to Fuel Load and Geographical Barrier Proximity

    Andueza, Miren / Barba, Emilio / Cuenca, David / Laso, Maite / Unamuno, Edorta / Unanue, Azaitz / Valkenburg, Thijs / Genovart, Meritxell / Arizaga, Juan

    Ardeola. 2019 Nov. 26, v. 67, no. 1

    2019  

    Abstract: Research on the stopover ecology of migrant birds has examined the role of multiple factors, both intrinsic and extrinsic, on departure decisions. However, a single factor may influence stopover decisions differentially, depending on the relative ... ...

    Title translation Decisiones de Partida en un Paseriforme Migratorio, el Carricero Común Acrocephalus scirpaceus, Con Relación a la Carga de Reservas y la Proximidad a Barreras Geográficas
    Abstract Research on the stopover ecology of migrant birds has examined the role of multiple factors, both intrinsic and extrinsic, on departure decisions. However, a single factor may influence stopover decisions differentially, depending on the relative geographic location of a stopover site within the flyway and the expectation of ecological challenges ahead. For instance, actual fuel load may have a decisive influence on departure decisions before a crossing of major geographical barriers, such as seas or deserts, but may be less important when crossing vast continental areas offering plenty of opportunities to refuel. The aim here was to test whether the relative influence of fuel load on departure decisions of the Common Reed-warbler Acrocephalus scirpaceus, a long-distance migrant songbird, varies in relation to proximity to a geographical barrier: the sea expanse between Iberia and Africa. We expected that departure from southern Iberian stopover sites would be highly influenced by fuel load, since migrants would not fly to Africa until they had sufficient fuel to cross the sea. We used Cormack-Jolly-Seber (CJS) models to test for the effect of fuel load on emigration (departure) probability from a number of stopover sites situated in northern and southern Iberia during the autumn migration period. Reed-warblers stopping over for longer than one day were more likely to depart if they were in northern Iberia than in southern sites. Moreover, large fuel loads promoted emigration from stopover sites in northern, but not in southern, Iberia. Therefore, we found no evidence supporting the hypothesis that Reed-warblers wait until they acquire large fuel loads before leaving their stopover sites near the edge of the barrier. This study shows that the same parameters may not act in the same way along migration route, in particular in relation to geographical barrier proximity.—Andueza, M., Barba, E., Cuenca, D., Laso, M., Unamuno, E., Unanue, A.,Valkenburg, T., Genovart, M. & Arizaga, J. (2020). Departure decisions of a migratory passerine, the Common Reed-warbler Acrocephalus scirpaceus, in relation to fuel load and geographical barrier proximity.
    Keywords Acrocephalus ; autumn ; fuel loading ; migratory behavior ; migratory birds ; models ; probability ; songbirds ; stopover sites ; Africa ; Iberian Peninsula
    Language English
    Dates of publication 2019-1126
    Size p. 15-28.
    Publishing place Spanish Society of Ornithology
    Document type Article
    ZDB-ID 2196653-9
    ISSN 2341-0825 ; 0570-7358
    ISSN (online) 2341-0825
    ISSN 0570-7358
    DOI 10.13157/arla.67.1.2020.ra2
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Unravelling population processes over the Late Pleistocene driving contemporary genetic divergence in Palearctic buzzards.

    Jowers, Michael J / Sánchez-Ramírez, Santiago / Lopes, Susana / Karyakin, Igor / Dombrovski, Valery / Qninba, Abdeljebbar / Valkenburg, Thijs / Onofre, Nuno / Ferrand, Nuno / Beja, Pedro / Palma, Luís / Godinho, Raquel

    Molecular phylogenetics and evolution

    2019  Volume 134, Page(s) 269–281

    Abstract: Population range expansions and contractions as a response to climate and habitat change throughout the Quaternary are known to have contributed to complex phylogenetic and population genetic events. Speciation patterns and processes in Palearctic ... ...

    Abstract Population range expansions and contractions as a response to climate and habitat change throughout the Quaternary are known to have contributed to complex phylogenetic and population genetic events. Speciation patterns and processes in Palearctic buzzards (genus Buteo) are a long-standing example of morphological and genetic data incongruence, attributed to panmixia, habitat range shifts, contact zones, and climate change. Here we assess the systematics, phylogeography and population genetic structure of three nominal species of Palearctic buzzards, Buteo buteo (including B. b. vulpinus), B. rufinus (including B. r. cirtensis) and B. hemilasius. Phylogenetic analyses inferred from mitochondrial data recover B. hemilasius as sister to the sister clades B. r. rufinus and B. buteo complex (B. b. buteo, B. b. vulpinus, but also including B. r. cirtensis). In contrast, we find an unresolved genetic delimitation inferred from four nuclear loci, suggesting an ancestral genetic pool for all species. Time-trees suggest population contractions and expansions throughout the Pleistocene, which likely reflect habitat change and contrasting ecological niche requirements between species. Microsatellite-based extended Bayesian skyline plots reveal relatively constant population sizes for B. hemilasius, B. r. rufinus, and B. b. vulpinus, in contrast to a dramatic population expansion in B. r. cirtensis within the last 3 kya. Overall, our study illustrates how complex population processes over the Late Pleistocene have shaped the patterns of genetic divergence in Palearctic buzzards, due to the joint effects of shared ancestral polymorphisms, population expansions and contractions, with hybridization at contact zones leading to admixture and introgression.
    MeSH term(s) Animals ; Arctic Regions ; Bayes Theorem ; Birds/genetics ; Climate Change ; DNA, Mitochondrial/genetics ; Demography ; Genetic Markers ; Genetic Variation ; Genetics, Population ; Haplotypes/genetics ; Microsatellite Repeats/genetics ; Mitochondria/genetics ; Mutation Rate ; Paleontology ; Phylogeny ; Phylogeography ; Sequence Analysis, DNA ; Species Specificity ; Time Factors
    Chemical Substances DNA, Mitochondrial ; Genetic Markers
    Language English
    Publishing date 2019-02-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 33610-5
    ISSN 1095-9513 ; 1055-7903
    ISSN (online) 1095-9513
    ISSN 1055-7903
    DOI 10.1016/j.ympev.2019.02.004
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  7. Article: Migratory Connectivity in European Bird Populations: Feather Stable Isotope Values Correlate with Biometrics of Breeding and Wintering Bluethroats Luscinia svecica

    Arizaga, Juan / Alonso, Daniel / Cortés, José A. / Eggenhuizen, Ton / Foucher, Julien / Franz, Dieter / García, Javier / Koning, Fred / Leconte, Michel / Rguibi, Hamid / Valkenburg, Thijs / Vera, Pablo / Hobson, Keith A.

    Ardeola

    Volume v. 62,, Issue no. 2

    Abstract: Understanding the migratory connectivity of migrant species is fundamental to their effective conservation. Analysis of individual traits that can vary geographically, such as biometrics and stable isotopic values of tissues, can help establish migratory ...

    Abstract Understanding the migratory connectivity of migrant species is fundamental to their effective conservation. Analysis of individual traits that can vary geographically, such as biometrics and stable isotopic values of tissues, can help establish migratory connections. The bluethroat Luscinia svecica is a species of conservation concern in Europe (Annex I Birds Directive). Our aim was to identify the possible migratory connectivity of bluethroats Luscinia svecica breeding in central and western Europe (subspecies L. s. namnetum, L. s. azuricollis and L. s. cyanecula in part) with their wintering areas in southern Europe and Africa using biometric and stable isotopic (δ²H) analyses. Overall, the morphological and stable isotopes analyses provided two clusters of localities, one for the Atlantic French, Portuguese and Moroccan localities, corresponding to the breeding and winter quarters of L. s. namnetum, and another for the remaining localities (Spain, The Netherlands, Germany and Senegal), corresponding to the ranges of L. s. azuricollis and L. s. cyanecula. Migratory connectivity of L. s. namnetum is strong but it is much weaker for the other two subspecies. Biometric data were positively correlated to the stable isotope values, suggesting that the results derived from both methodological approaches lead to similar conclusions.
    Keywords Luscinia svecica ; migratory behavior ; biometry ; breeding ; wintering grounds ; deuterium ; feathers ; stable isotopes
    Language English
    Document type Article
    ISSN 0570-7358
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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