LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Zurück zur letzten Suche Suchhistorie
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Christos Barboutis, "
  2. AU="Fayaz, U"
  3. AU="Ba, Yabo"
  4. AU="Stevens, Valerie A"
  5. AU="Kahouli, Sophia"
  6. AU="Sun, Chuanrui"
  7. AU="Carrera, Carlo Giovanni"
  8. AU="Secrieru, Oana Manuela"
  9. AU="Wang, Lanzhong"

Suchergebnis

Treffer 1 - 8 von insgesamt 8

Suchoptionen

  1. Artikel ; Online: Stopover Ecology of the European Turtle Dove ( Streptopelia turtur ), a Threatened Migratory Bird Species, after the Crossing of an Extended Ecological Barrier

    Christos Barboutis / Anastasios Bounas / Elisabeth Navarrete / Thord Fransson

    Birds, Vol 4, Iss 17, Pp 202-

    2023  Band 212

    Abstract: Migratory routes, important stopover sites and wintering grounds for the Turtle Dove, a declining trans-Saharan migratory bird, are known mainly for populations in western and central Europe, but very little is known about birds using the eastern ... ...

    Abstract Migratory routes, important stopover sites and wintering grounds for the Turtle Dove, a declining trans-Saharan migratory bird, are known mainly for populations in western and central Europe, but very little is known about birds using the eastern migration flyway. By combining long-term ringing data, tracking data and citizen science data, a comprehensive picture of the stopover ecology of the Turtle Dove’s spring migration in the eastern Mediterranean is presented. Furthermore, a quantitative estimate of the number of birds that migrate over Greece during the spring migration is given. Approximately 16% of the European population migrates through Greece, passing through as early as the end of March, with the passage lasting up to the end of May. On average, the species arrives depleted after the crossing of the Sahara Desert and the Mediterranean Sea, with no systematic refuelling event taking place in North Africa. Both tracking and ringing data indicate that the birds undergo an extensive stopover after the barrier crossing (as much as close to three weeks). Turtle Doves additionally show significant body mass gain during their stay, indicating the potential importance of stopover sites after the Mediterranean Sea for the conservation of the species.
    Schlagwörter tracking ; migration ; islands ; Mediterranean ; Ecology ; QH540-549.5 ; Animal culture ; SF1-1100
    Thema/Rubrik (Code) 590
    Sprache Englisch
    Erscheinungsdatum 2023-04-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  2. Artikel ; Online: Spatially different annual cycles but similar haemosporidian infections in distant populations of collared sand martins

    Steffen Hahn / Martins Briedis / Christos Barboutis / Raffaella Schmid / Martin Schulze / Nina Seifert / Tibor Szép / Tamara Emmenegger

    BMC Zoology, Vol 6, Iss 1, Pp 1-

    2021  Band 11

    Abstract: Abstract Background Populations of long-distance migratory birds experience different environments and are consequently exposed to different parasites throughout their annual cycles. Though, specific whereabouts and accompanied host-parasite interactions ...

    Abstract Abstract Background Populations of long-distance migratory birds experience different environments and are consequently exposed to different parasites throughout their annual cycles. Though, specific whereabouts and accompanied host-parasite interactions remain unknown for most migratory passerines. Collared sand martins (Riparia riparia) breeding in the western Palaearctic spend the nonbreeding period in Africa, but it is not yet clear whether specific populations differ in overwintering locations and whether these also result in varying infections with vector-transmitted endoparasites. Results Geolocator tracking revealed that collared sand martins from northern-central and central-eastern Europe migrate to distant nonbreeding sites in West Africa and the Lake Chad basin in central Africa, respectively. While the ranges of these populations were clearly separated throughout the year, they consistently spent up to 60% of the annual cycle in Africa. Ambient light recorded by geolocators further indicated unsheltered roosting during the nonbreeding season in Africa compared to the breeding season in Europe. We found 5–26% prevalence of haemosporidian parasites in three breeding populations and one migratory passage population that was only sampled but not tracked. In total, we identified seven Plasmodium and nine Haemoproteus lineages (incl. two and seven new lineages, respectively), the latter presumably typical for swallows (Hirundinae) hosts. 99.5% of infections had a low intensity, typical for chronic infection stages, whereas three individuals (0.5%) showed high parasitaemia typical for acute infections during spring migration and breeding. Conclusions Our study shows that blood parasite infections are common in several western Palaearctic breeding populations of collared sand martins who spent the nonbreeding season in West Africa and the lake Chad region. Due to long residency at the nonbreeding grounds blood parasite transmissions may mainly occur at host population-specific residences sites in Europe and Africa; the latter being likely facilitated by unsheltered roosting and thus high vulnerability to hematophagous insects. The rare cases of high parasitaemia during spring migration and breeding further indicates either relapses of chronic infection or primary infections which occurred shortly before migration and during breeding.
    Schlagwörter Migration ; Blood parasites ; Parasitaemia ; Plasmodium ; Haemoproteus ; Geolocation ; Zoology ; QL1-991
    Thema/Rubrik (Code) 590
    Sprache Englisch
    Erscheinungsdatum 2021-04-01T00:00:00Z
    Verlag BMC
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  3. Artikel ; Online: Association between guilds of birds in the African-Western Palaearctic region and the tick species Hyalomma rufipes, one of the main vectors of Crimean-Congo hemorrhagic fever virus

    Tove Hoffman / Laura G. Carra / Patrik Öhagen / Thord Fransson / Christos Barboutis / Dario Piacentini / Jordi Figuerola / Yosef Kiat / Alejandro Onrubia / Thomas G.T. Jaenson / Kenneth Nilsson / Åke Lundkvist / Björn Olsen

    One Health, Vol 13, Iss , Pp 100349- (2021)

    2021  

    Abstract: Introduction: The ecology of the vertebrate host contributes to the geographical range expansion of ticks. In this study, we investigated which tick taxa that infest and are dispersed by birds along African-Western Palaearctic flyways during northward ... ...

    Abstract Introduction: The ecology of the vertebrate host contributes to the geographical range expansion of ticks. In this study, we investigated which tick taxa that infest and are dispersed by birds along African-Western Palaearctic flyways during northward migration, and whether bird ecology was associated with tick taxa. Materials and methods: Ticks were collected from birds trapped at bird observatories in Spain, Italy, Greece, and Israel during the spring migration of 2014 and 2015, using mist nets. The tick-infested bird species were classified into guilds, using different combinations of the variables: migration distance, wintering region, foraging behaviour, and winter habitat. Ticks were molecularly determined to genus and species level by sequencing fragments of the 12S ribosomal DNA (rDNA) gene and by phylogenetic inference, using the Maximum Likelihood algorithm. Data were analysed using descriptive measures, graphs, Chi2 tests, the Tukey-Kramer test, and a parametric linear model (generalized linear model) in order to analyse and adjust for characteristics in the bird guilds and their relationship to collected tick taxa. Results: Most (84.2%) of the 10,209 trapped birds were long-distance migrants, of which 2.4% were infested by ticks. The most common tick species was Hyalomma rufipes (77.7%; 447/575), a known vector and reservoir of Crimean-Congo hemorrhagic fever virus. Bird guilds containing only long-distance migrants with wintering areas in Africa were associated with the tick species H. rufipes (p < 0.0001). Furthermore, bird winter habitat was associated with H. rufipes (p = 0.003); with bird species overwintering in open habitat (p = 0.014) and wetlands (p = 0.046) having significantly more H. rufipes as compared to birds with a winter habitat comprising forest and shrubs (p = 0.82). Conclusions: With climate change, the likelihood of establishment of permanent Hyalomma populations in central and northern Europe is increasing. Thus, surveillance programs for monitoring the risk of introduction ...
    Schlagwörter African-Western Palaearctic ; Migratory birds ; Guilds ; Ticks ; Hyalomma rufipes ; Medicine (General) ; R5-920
    Thema/Rubrik (Code) 590
    Sprache Englisch
    Erscheinungsdatum 2021-12-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  4. Artikel: The Migration of the Lesser Kestrel Falco naumanni in Eastern Europe - A Ringing Recovery and Direct Observation Approach

    Bounas, Anastasios / Angelos Evangelidis / Christos Barboutis / Konstantinos Sotiropoulos / Michele Panuccio

    Acrocephalus. 2017 Feb. 8, v. 37, no. 168-169

    2017  

    Abstract: We examined ringing recovery data of the Lesser Kestrel Falco naumanni in order to analyse its migration patterns and philopatry rates in Eastern Europe. In addition, we extracted counts of migrating birds from online databases and studied the use of the ...

    Abstract We examined ringing recovery data of the Lesser Kestrel Falco naumanni in order to analyse its migration patterns and philopatry rates in Eastern Europe. In addition, we extracted counts of migrating birds from online databases and studied the use of the flyway as well as the phenology of both spring and autumn migrations through Greece. Birds appeared to migrate in the same mean direction in spring and autumn through the Italian and Balkan Peninsulas. During spring, movements took place on a broad front from March until mid- May with a peak in mid-April; in autumn, birds migrated through Greece on a narrower front from early August to early October, with most of individuals passing through Greece in mid-September. Finally, philopatry rates were higher for adults, while juvenile birds dispersed more often and at longer distances, up to 974 km away. Our results on migration patterns generally agree with those in other studies, but we found some evidence of long-distance premigratory movements towards mainland Greece that could also shape the narrower front migration in autumn. In addition, long distance dispersal movements of juveniles in southeastern Europe, where Lesser Kestrel populations show a fragmented distribution, could facilitate gene flow between populations, thus avoiding the negative effects of mating with genetically similar individuals.
    Schlagwörter adults ; autumn ; databases ; Falco naumanni ; gene flow ; genetic similarity ; juveniles ; migratory birds ; phenology ; philopatry ; spring ; Eastern European region ; Greece
    Sprache Englisch
    Erscheinungsverlauf 2017-0208
    Umfang p. 49-56.
    Erscheinungsort De Gruyter Open
    Dokumenttyp Artikel
    ZDB-ID 2437738-7
    ISSN 0351-2851 ; 2199-6067
    ISSN 0351-2851 ; 2199-6067
    DOI 10.1515/acro-2016-0002
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  5. Artikel: Inability to regain normal body mass despite extensive refuelling in great reed warblers following the trans‐Sahara crossing during spring migration

    Fransson, Thord / MÃ¥ns Karlsson / Cecilia Kullberg / Robert Stach / Christos Barboutis

    Journal of avian biology. 2017 Jan., v. 48, no. 1

    2017  

    Abstract: Migratory birds wintering in Africa face the challenge of passing the Sahara desert with few opportunities to forage. During spring migration birds thus arrive in the Mediterranean area with very low energy reserves after crossing the desert. Since early ...

    Abstract Migratory birds wintering in Africa face the challenge of passing the Sahara desert with few opportunities to forage. During spring migration birds thus arrive in the Mediterranean area with very low energy reserves after crossing the desert. Since early arrival to the breeding grounds often is of importance to maximize reproductive success, finding stopover sites with good refuelling possibilities after the Saharan passage is of utmost importance. Here we report on extensive fuelling in the great reed warbler Acrocephalus arundinaceus on the south coast of Crete in spring, the first land that they encounter after crossing the Sahara desert and the Mediterranean Sea in this area. Birds were studied at a river mouth and due to an exceptional high recapture rate (45 and 51% in two successive years), we were able to get information about stopover behaviour in 56 individual great reed warblers during two spring seasons. The large proportion of trapped great reed warbler compared to other species and the large number of recaptures suggest that great reed warblers actively choose this area for stopover. They stayed on average 3–4 d, increased on average about 3.5 g in body mass and the average rate of body mass increase was 4.8% of lean body mass d–¹. Wing length affected the rate of increase and indicated that females have a slower increase than males. The results found show that great reed warblers at this site regularly deposit larger fuel loads than needed for one continued flight stage. The low body mass found in great reed warblers (also in birds with high fat scores) is a strong indication that birds staging at Anapodaris still had not been able to rebuild their structural tissue after the strenuous Sahara crossing, suggesting that rebuilding structural tissue may take longer time than previously thought.
    Schlagwörter Acrocephalus arundinaceus ; breeding sites ; coasts ; crossing ; energy ; females ; flight ; forage ; fuel loading ; lean body mass ; males ; migratory birds ; reproductive success ; spring ; stopover sites ; Africa ; Crete ; Mediterranean Sea ; Mediterranean region ; Sahara Desert
    Sprache Englisch
    Erscheinungsverlauf 2017-01
    Umfang p. 58-65.
    Erscheinungsort Blackwell Publishing Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 2028018-X
    ISSN 1600-048X ; 0908-8857
    ISSN (online) 1600-048X
    ISSN 0908-8857
    DOI 10.1111/jav.01250
    Datenquelle NAL Katalog (AGRICOLA)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  6. Artikel ; Online: Fuelling in front of the barrier—are there age based behavioral differences in Garden Warblers Sylvia borin?

    Christos Barboutis / Ian Henshaw / Cecilia Kullberg / Stamatina Nikolopoulou / Thord Fransson

    PeerJ, Vol 2, p e

    2014  Band 319

    Abstract: Garden Warblers Sylvia borin were studied during autumn stopover in Crete before crossing the barrier of the Mediterranean Sea and the Sahara Desert. Birds followed with transmitters show extensive stopover periods, which were longer in first-year birds, ...

    Abstract Garden Warblers Sylvia borin were studied during autumn stopover in Crete before crossing the barrier of the Mediterranean Sea and the Sahara Desert. Birds followed with transmitters show extensive stopover periods, which were longer in first-year birds, 16 days, compared with adult birds, 14 days. The distribution of body masses from birds trapped in fig trees were used to estimate the departure body mass and the results found indicate that both age categories on average depart with a fuel load close to 100% of lean body mass. The movement of transmitter birds shows differences between first-year and adult birds. Adult birds move further away from the release site and many also left the study area. Several were found settled outside the study area, up to 17 km away, indicating that they regularly make longer stopover movements. It is suggested that this might be a result of that they return to a place where they stayed during an earlier migration. It was shown that stopover site fidelity exists and nine garden warblers were recaptured in the area during a following autumn. The results found highlights the importance of stopover areas close to the Sahara Desert.
    Schlagwörter Bird migration ; Sahara crossing ; Eastern Mediterranean ; Stopover ; Crete ; Radio tracking ; Medicine ; R ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 930 ; 590
    Sprache Englisch
    Erscheinungsdatum 2014-03-01T00:00:00Z
    Verlag PeerJ Inc.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  7. Artikel ; Online: On the potential roles of ticks and migrating birds in the ecology of West Nile virus

    Karl Hagman / Christos Barboutis, / Christian Ehrenborg / Thord Fransson / Thomas G.T. Jaenson / Per-Eric Lindgren, / Åke Lundkvist, / Fredrik Nyström / Jonas Waldenström, / Erik Salaneck

    Infection Ecology & Epidemiology, Vol 4, Iss 0, Pp 1-

    2014  Band 5

    Abstract: Background: Mosquitoes are the primary vectors of West Nile virus (WNV). Ticks have, however, been suggested to be potential reservoirs of WNV. To investigate their role in the spread of the virus, ticks, which had been collected from birds migrating ... ...

    Abstract Background: Mosquitoes are the primary vectors of West Nile virus (WNV). Ticks have, however, been suggested to be potential reservoirs of WNV. To investigate their role in the spread of the virus, ticks, which had been collected from birds migrating northward from Africa to Europe, were analyzed for the potential presence of WNV RNA. Methods: On the Mediterranean islands of Capri and Antikythira, a total of 14,824 birds were captured and investigated from which 747 ticks were collected. Results and conclusions: Most of the identified ticks (93%) were nymphs and larvae of Hyalomma marginatum sensu lato (s.l.), most of which were or appear to be Hyalomma rufipes. Of these ticks, 729 were individually screened for WNV RNA. None of the ticks was found to be WNV positive. Thus, there was no evidence that H. marginatum s.l. ticks play a role in the spread of WNV from Africa to Europe.
    Schlagwörter West Nile virus ; emerging infectious diseases ; migratory birds ; zoonoses ; ticks ; Hyalomma marginatum s.l. ; Hyalomma rufipes ; Infectious and parasitic diseases ; RC109-216 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Thema/Rubrik (Code) 590
    Sprache Englisch
    Erscheinungsdatum 2014-01-01T00:00:00Z
    Verlag Co-Action Publishing
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  8. Artikel ; Online: Migratory Birds, Ticks, and Crimean-Congo Hemorrhagic Fever Virus

    Mats Lindeborg / Christos Barboutis / Christian Ehrenborg / Thord Fransson / Thomas G.T. Jaenson / Per-Eric Lindgren / Åke Lundkvist / Fredrik Nyström / Erik Salaneck / Jonas Waldenström / Björn Olsen

    Emerging Infectious Diseases, Vol 18, Iss 12, Pp 2095-

    2012  Band 2097

    Schlagwörter Crimean-Congo hemorrhagic fever virus ; tick-borne diseases ; animal migration ; zoonoses ; migratory birds ; vector-borne infections ; Medicine ; R ; Infectious and parasitic diseases ; RC109-216
    Sprache Englisch
    Erscheinungsdatum 2012-12-01T00:00:00Z
    Verlag Centers for Disease Control and Prevention
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

Zum Seitenanfang