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Estimating Competition in Cladocerans Using Data on Dynamics of Clutch Size and Population Density
Author(s) -
Gnauck A.,
Matveev Vladimir
Publication year - 1983
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.3510680604
Subject(s) - interspecific competition , daphnia galeata , competition (biology) , biology , daphnia , avian clutch size , population , population density , ecology , density dependence , fecundity , cladocera , zooplankton , reproduction , branchiopoda , demography , sociology
Negative correlations between clutch size and population density are proposed to be considered as indices of intra‐ and interspecific competition in cladocerans if they are revealed while analyzing population dynamics and clutch size and time lags are taken into account. The proper correlation analysis of summer populations of Diaphanosoma brachyurum, Bosmina coregoni, Daphnia cucullata and D. galeata from mesotrophic Lake Glubokoye (Moscow Region) in 1975, 1978, and 1979 indicates the important role of competition of both types for the community studied. High niche overlap in food and space in the four populations was also observed.