Habitat variation in species composition of flea assemblages on small mammals in central Europe |
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Authors: | Boris R Krasnov Michal Stanko Dana Miklisova Serge Morand |
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Institution: | (1) Ramon Science Center and Mitrani Department of Desert Ecology, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, P.O. Box 194, 80600 Mizpe Ramon, Israel;(2) Institute of Zoology, Slovak Academy of Sciences, Lofflerova 10, SK-04001 Kosice, Slovakia;(3) Center for Biology and Management of Populations, Campus International de Baillarguet, CS 30016 34988 Montferrier-sur-Lez cedex, France |
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Abstract: | We studied patterns of variation in species composition of flea assemblages on small mammals across different habitats of
Slovakia and compared flea species composition within and across host species among habitats. We asked (1) how variable the
composition of flea assemblages is among different populations of the same host occurring in different habitats and (2) whether
the composition of flea assemblages in a habitat is affected either by species composition of hosts or by environmental affinities
of this habitat. Between-habitat similarity in flea species composition increased with an increase in the similarity in host
species composition. Species richness of flea assemblages of a host species correlated positively with mean number of cohabitating
host species but not with the number of habitats occupied by a host species. Results of the ordination of flea collections
from each individual host demonstrated that the first five principal components explained most of the variance in species
composition of flea assemblages. The segregation between rodent and insectivore flea assemblages was easily discerned from
the ordination diagram when flea assemblages were plotted according to their hosts. When flea assemblages were plotted according
to their habitat affinities, the distinction of habitats based on variation in flea composition was not as clear. The results
of ANOVA of each principal component showed the significant effect of both host species and habitat type. The variation in
each principal component was explained better by the factor of host species compared with the factor of habitat type. Multidimensional
scaling of flea assemblages within host species across habitats demonstrated that among-habitat variation in flea composition
was manifested differently in different hosts. |
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