Počet záznamů: 1  

Intra-tropical movements as a beneficial strategy for Palearctic migratory birds

  1. 1.
    SYSNO ASEP0483903
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevIntra-tropical movements as a beneficial strategy for Palearctic migratory birds
    Tvůrce(i) Koleček, Jaroslav (UBO-W) RID, ORCID, SAI
    Hahn, S. (CH)
    Emmenegger, T. (CH)
    Procházka, Petr (UBO-W) RID, ORCID, SAI
    Celkový počet autorů4
    Číslo článku171675
    Zdroj.dok.Royal Society Open Science. - : Royal Society Publishing - ISSN 2054-5703
    Roč. 5, č. 171675 (2018)
    Poč.str.10 s.
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovageolocator ; habitat deterioration ; NDVI ; passerines ; sub-Saharan Africa ; vegetation conditions
    Vědní obor RIVEG - Zoologie
    Obor OECDOrnithology
    CEPGA13-06451S GA ČR - Grantová agentura ČR
    Institucionální podporaUBO-W - RVO:68081766
    UT WOS000423777300080
    EID SCOPUS85040064916
    DOI10.1098/rsos.171675
    AnotaceMigratory birds often move significantly within their non-breeding range before returning to breed. It remains unresolved under which circumstances individuals relocate, whether movement patterns are consistent between populations and to what degree the individuals benefit from the intra-tropical movement (ITM). We tracked adult great reed warblers Acrocephalus arundinaceus from a central and a southeastern European breeding population, which either stay at a single non-breeding site, or show ITM, i.e. move to a second site. We related ITM to the normalized difference vegetation index (NDVI) describing vegetation conditions and probably reflecting food abundance for these insectivorous birds. Three-quarters of birds showed ITM across the non-breeding range. We found no difference in range values and mean values of NDVI between the single non-breeding sites of stationary birds and the two sites of moving birds. The vegetation conditions were better at the second sites compared to the first sites during the period which moving birds spent at the first sites. Vegetation conditions further deteriorated at the first sites during the period the moving birds resided at their second sites. Our study provides evidence that birds probably benefit from improved conditions after ITM compared to the conditions at the sites from where they departed.
    PracovištěÚstav biologie obratlovců
    KontaktHana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
    Rok sběru2018
Počet záznamů: 1  

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