caa a22 4500 469097264 CHVBK 20180323133034.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF00317213 doi (NATIONALLICENCE)springer-10.1007/BF00317213 Negative effects of Rhabdias bufonis (Nematoda) on the growth and survival of toads ( Bufo bufo ) [Elektronische Daten] [C. Goater, P. Ward] Summary: The growth and survival of juvenile toads, Bufo bufo, infected with a common lung nematode, Rhabdias bufonis, were studied. Toads were raised from tadpoles in the laboratory and infected 2 months after metamorphosis. Individual toads were exposed to doses of 10, 40, 80 or 160 larvae, which enabled examination of the hypothesis that parasite-induced mortality is affected by worm numbers. Growth of infected toads began to diverge from that of uninfected controls at 6 weeks post infection (WPI) and by 12 WPI the most heavily infected toads were approximately half the mass of controls. No controls died throughout the experiment; however, mortality of infected toads was strongly affected by parasite density. A mechanism for mortality is suggested by the significant negative relationship between parasite density and dietary intake. This parasite-induced anorexia was detected at 3 WPI and persisted up to 9 WPI. Patterns of reduced host growth, survival and dietary intake provide experimental evidence of the negative consequences of parasitic infection in a natural parasite-host system which may also be present under natural conditions. Springer-Verlag, 1992 Parasitism nationallicence Growth nationallicence Survival nationallicence Bufo nationallicence Rhabdias nationallicence Goater C. Zoologisches Museum der Universität Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland aut Ward P. Zoologisches Museum der Universität Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland aut Oecologia Springer-Verlag 89/2(1992-02-01), 161-165 0029-8549 89:2<161 1992 89 442 https://doi.org/10.1007/BF00317213 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317213 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goater C. Zoologisches Museum der Universität Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland aut NATIONALLICENCE 700 1- Ward P. Zoologisches Museum der Universität Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 89/2(1992-02-01), 161-165 0029-8549 89:2<161 1992 89 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer