caa a22 4500 477076122 CHVBK 20180405111439.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF02515734 doi (NATIONALLICENCE)springer-10.1007/BF02515734 Spatial variation in female fertility related to interactions with flower consumers and pathogens in a forest metapopulation of Primula sieboldii [Elektronische Daten] [Izumi Washitani, Yasushi Okayama, Keiko Sato, Hitomi Takahashi, Takayuki Ohgushi] Antagonistic biological interactions with flower consumers and pathogens may influence reproductive success of flowering plants, affecting population dynamics and natural selection for floral traits. However, ecological and evolutionary consequences of the interactions may depend on both spatial and temporal patterns of the interactions. In a forest metapopulation ofPrimula sieboldii E. Morren, an endangered clonal plant species, we measured between-subpopulation patterns of seed sets and interactions with an influential flower consumer, a rove beetle,Eusphalerum bosatsu Watanabe, and a specific smut fungal pathogen,Urocystis tranzschelina (Lavrov) Zundel (Ustilaginales), for three years. Mean female fertility (seed set per flower) for individual subpopulations fluctuated moderately among years but was highly variable within each year among the five subpopulations studied. In two subpopulations, the impact ofEusphalerum beetle, was sufficiently large to result in almost complete failure in seed production over eight years including the three study and five previous preliminary observation years. In the two other subpopulations, seed set failure was caused by infection by the smut fungus. Infected capsules which constitute 10-30% of the capsules produced in the subpopulations were filled with ustilospores instead of seeds. In the subpopulation that escaped flower damage byEusphalerum beetles and smut fungal infection, seed sets of both pin and thrum flowers were much higher than in the other subpopulations. The spatial restriction of individual antagonistic agents to a part of subpopulations suggest that dispersal of the agents, as well as the mode of spatial subdivision of the plant population would be important for determining the overall effects of antagonistic interactions on plant performances at the metapopulation level. Society of Population Ecology, 1996 Eusphalerum nationallicence herbivore nationallicence pathogen nationallicence seed set nationallicence spatial pattern nationallicence spatial subdivision nationallicence subpopulation nationallicence Urocystis nationallicence Washitani Izumi Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut Okayama Yasushi Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut Sato Keiko Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut Takahashi Hitomi Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut Ohgushi Takayuki Institute of Low Temeprature Science, Hokkaido University, 060, Sapporo, Japan aut Researches on Population Ecology Springer-Verlag 38/2(1996-12-01), 249-256 0034-5466 38:2<249 1996 38 10144 https://doi.org/10.1007/BF02515734 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02515734 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Washitani Izumi Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut NATIONALLICENCE 700 1- Okayama Yasushi Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut NATIONALLICENCE 700 1- Sato Keiko Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut NATIONALLICENCE 700 1- Takahashi Hitomi Institute of Biological Sciences, University of Tsukuba, 305, Tsukuba, Japan aut NATIONALLICENCE 700 1- Ohgushi Takayuki Institute of Low Temeprature Science, Hokkaido University, 060, Sapporo, Japan aut NATIONALLICENCE 773 0- Researches on Population Ecology Springer-Verlag 38/2(1996-12-01), 249-256 0034-5466 38:2<249 1996 38 10144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer