caa a22 4500 469096624 CHVBK 20180323133032.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF00319017 doi (NATIONALLICENCE)springer-10.1007/BF00319017 Brett Michael Institute of Limnology, Uppsala University, 751 22, Uppsala, Sweden aut Chaoborus and fish-mediated influences on Daphnia longispina population structure, dynamics and life history strategies [Elektronische Daten] [Michael Brett] Summary: This study examined the long term effects of predation by larvae of the midge Chaoborus and simulated fish predation on experimental Daphnia longispina populations. Chaoborus predation, relative to fish predation, led to populations composed of larger individuals as a whole, larger egg-bearing individuals, and a larger primiparous instar. Daphnia retained helmets beyond the first instar in response to the presence of Chaoborus. Both types of predation, relative to predator-free controls, reduced prey population size and rates of increase, but increased population death rates. The reduction in population size due to predation led to increased resource availability for individuals remaining in the populations and increased individual fecundity in the predation treatments. The differences noted between the Chaoborus, fish, and control treatments increased with predation intensity. Springer-Verlag, 1992 Daphnia nationallicence Chaoborus nationallicence Fish nationallicence Size-selective nationallicence Predation nationallicence Oecologia Springer-Verlag 89/1(1992-01-01), 69-77 0029-8549 89:1<69 1992 89 442 https://doi.org/10.1007/BF00319017 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00319017 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Brett Michael Institute of Limnology, Uppsala University, 751 22, Uppsala, Sweden aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 89/1(1992-01-01), 69-77 0029-8549 89:1<69 1992 89 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer