caa a22 4500 469096535 CHVBK 20180323133032.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF00319028 doi (NATIONALLICENCE)springer-10.1007/BF00319028 Ranta Esa Integrative Ecology Unit, Department of Zoology, University of Helsinki, P. Rautatiekatu 13, SF-00100, Helsinki, Finland aut Gregariousness versus solitude: another look at parasite faunal richness in Canadian freshwater fishes [Elektronische Daten] [Esa Ranta] Summary: Recently Poulin (1991), using published data on Canadian freshwater fishes (60 species, three families), concluded that there is no difference in parasite species numbers between solitary and social species. Nor could he associate parasite diversity to host size, age or range of distribution. Analysing Poulin's data with somewhat differing methods I reached different conclusions. Recognising that reported parasite species number per host species is a function of research effort (also noted by Poulin), I use residuals of the regression model as a measure of standardized parasite species number. First, it turned out that solitary and social salmonids differ in parasite faunal richness. That is, solitary species harbour a smaller diversity than species that school outside the breeding season. Second, host distribution range clearly correlates with the richness of total parasite fauna of the species in the three families. This observation was recently confirmed for North American freshwater fish species by Chandler and Cabana (1991). Third, in Percidae host size and age are also correlated with parasite species diversity. Springer-Verlag, 1992 Parasitism nationallicence Sociality nationallicence Freshwater fishes nationallicence Research effort nationallicence Evolutionary conclusions nationallicence Oecologia Springer-Verlag 89/1(1992-01-01), 150-152 0029-8549 89:1<150 1992 89 442 https://doi.org/10.1007/BF00319028 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00319028 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Ranta Esa Integrative Ecology Unit, Department of Zoology, University of Helsinki, P. Rautatiekatu 13, SF-00100, Helsinki, Finland aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 89/1(1992-01-01), 150-152 0029-8549 89:1<150 1992 89 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer