caa a22 4500 469096705 CHVBK 20180323133033.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF00319008 doi (NATIONALLICENCE)springer-10.1007/BF00319008 Occurrence and performance of the aspen blotch miner, Phyllonorycter salicifoliella , on three host-tree species [Elektronische Daten] [Michael Auerbach, Jeffrey Alberts] Summary: Larvae of the aspen blotch miner, Phyllonorycter salicifoliella Chambers (Lepidoptera: Gracillariidae), feed within leaves of three host-tree species in north-central Minnesota, USA. Far more individuals occur on Populus tremuloides than on P. balsamifera or P. grandidentata. We tested whether this pattern of host use reflected variable performance among alternative hosts by examining survivorship, sources of mortality, pupal mass, feeding efficiency, and development time of miners on each tree species. We also determined foliar water, nitrogen, condensed tannin, and phenolic glycoside content of host trees to test if host-tree chemical attributes were responsible for differences in performance. There was no significant difference in egg-to-adult survival among miners on different hosts, although dominant sources of mortality did vary. Miners on P. grandidentata suffered less parasitism and more predation than those on the other hosts, even though most parasitoid species attacked miners on all hosts. The other performance parameters varied among host species, but not in a consistent pattern. Pupal mass was greatest on P. tremuloides and P. balsamifera, the hosts with comparatively high foliar nitrogen and low phenolic glycoside concentrations. However, feeding efficiency was greatest and development time shortest for miners on P. grandidentata. Thus, pupal mass was the only index of performance maximized on P. tremuloides, the most commonly used host. Infrequent occurrence of Phyllonorycter salicifoliella on P. grandidentata results in part from phenological differences between this and the other host species. Low oviposition rates on P. balsamifera are correlated with low abundance of this host at the study site and a phenolic glycoside profile different from that of the other host species. Springer-Verlag, 1992 Herbivore performance nationallicence Host phenology nationallicence Host-plant preference nationallicence Phyllonorycter nationallicence Populus nationallicence Auerbach Michael Department of Biology, University of North Dakota, 58202, Grand Forks, ND, USA aut Alberts Jeffrey Department of Biology, University of North Dakota, 58202, Grand Forks, ND, USA aut Oecologia Springer-Verlag 89/1(1992-01-01), 1-9 0029-8549 89:1<1 1992 89 442 https://doi.org/10.1007/BF00319008 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00319008 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Auerbach Michael Department of Biology, University of North Dakota, 58202, Grand Forks, ND, USA aut NATIONALLICENCE 700 1- Alberts Jeffrey Department of Biology, University of North Dakota, 58202, Grand Forks, ND, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 89/1(1992-01-01), 1-9 0029-8549 89:1<1 1992 89 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer