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  • Odnosi med telesno velikostjo, razširjenostjo in gostoto gnezdečih ptic v Sloveniji = Relationship between body size, distribution and abundance of breeding birds in Slovenia
    Janžekovič, Franc, 1962-
    Through the analysis of empirical data on the breeders of Slovenia, relations between their distribution, abundance and body size were being assessed. Two hypotheses were tested: 1) species with ... greater distribution have greater abundance than species limited to smaller geographical regions: 2) larger species have lower average abundance than smaller. The relationship between distribution and abundance of the species breeding in Slovenia was in accordance with the exponent growth, while the correlation coefficient was high and positive (R=0,75). Correlation between distribution of species and number of breeding pairs was also significant and positive (R=0,88). Larger species had smaller average abundance and therefore smaller number of breeding pairs than smaller birds. Correlation between body size and abundanceof pairs was negative (r=-0,41). The difference in abundance of pairs between species with larger and smaller body size is presumably the result of different access to natural resources (mainly food). In larger species, the same quantity of limited natural resources is distributed among smaller number of individuals, while in small body size species this quantity is distributed among greater number of birds
    Source: Acrocephalus : glasilo Društva za opazovanje in proučevanje ptic Slovenije = journal of Bird Watching and Bird Study Association of Slovenia. - ISSN 0351-2851 (Letn. 23, št. 113/114, 2002, str. 123-128)
    Type of material - article, component part ; adult, serious
    Publish date - 2002
    Language - slovenian
    COBISS.SI-ID - 12481800

    Link(s):

    Digital Library of the University of Maribor – DLUM
    Digitalna knjižnica Slovenije - dLib.si

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