Effects of local conspecific abundance on seed set and seed predation, and control of Carpinus laxiflora (Betulaceae) population density
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In this study, the dependence of local conspecific abundance on seed set and predation was examined, and determinates of population density of the temperate tree species Carpinus laxiflora (Betulaceae) in Inagi city, Tokyo, Japan were identi¬fied. During a good seed year (2013), seeds were sampled from 27 individuals and categorized as Sound, Empty, Predated, Immature, Decayed, or Broken. Empty seeds were identified as those that failed to fertilize and predation rates were defined as the proportion of seeds that were affected by predators. The proportion of the seed set that was fertilized was significantly positively correlated with local abundance of conspecific trees, while the proportion of seeds that escaped predation was significantly negatively correlated with local abundance of conspecific trees. Thereby, the production of Sound seeds was highest at sites with moderate local conspecific abundance. Although this phenomenon was only ob¬served in a few cases, it clearly showed optimal reproductive success under conditions of moderate density of conspecific reproductive adults, suggesting a mechanism that controls the population density of this species.
Abstract
In this study, the dependence of local conspecific abundance on seed set and predation was examined, and determinates of population density of the temperate tree species Carpinus laxiflora (Betulaceae) in Inagi city, Tokyo, Japan were identi¬fied. During a good seed year (2013), seeds were sampled from 27 individuals and categorized as Sound, Empty, Predated, Immature, Decayed, or Broken. Empty seeds were identified as those that failed to fertilize and predation rates were defined as the proportion of seeds that were affected by predators. The proportion of the seed set that was fertilized was significantly positively correlated with local abundance of conspecific trees, while the proportion of seeds that escaped predation was significantly negatively correlated with local abundance of conspecific trees. Thereby, the production of Sound seeds was highest at sites with moderate local conspecific abundance. Although this phenomenon was only ob¬served in a few cases, it clearly showed optimal reproductive success under conditions of moderate density of conspecific reproductive adults, suggesting a mechanism that controls the population density of this species.
참고문헌 (34)
- Abe S, "Factors influencing sapling composition in canopy gaps of a temperate deciduous forest", Vegetatio, 120, pp.21~32 (1995)
- "glmmML: Generalized linear models with clustering. R package version 1.0" (2013)[URL]
- Burkey TV, "Tropical tree species diversity: a test of the Janzen-Connell model", Oecologia, 97, pp.533~540 (1994)
- Clark DA, "Spacing dynamics of a tropical rain forest tree: evaluation of the Janzen-Connell model", Am Nat, 124, pp.769~788 (1984)
- Connell JH, "Dynamics of Populations", pp.298~312 (1971), PUDOC
- Dauber J, "Effects of patch size and density on flower visitation and seed set of wild plants: a pan-European approach", J Ecol, 98, pp.188~196 (2010)
- De Crop E, "The impact of habitat fragmentation on the interaction between Centaurium erythraea (Gentianaceae) and its specialized seed predator Stenoptilia zophodactylus (Pterophoridae, Lepidoptera)", Ecol Res, 27, pp.967~974 (2012)
- Fujimori N, "Reproductive success and disweretance to conspecific adults in the sparsely distributed tree Kalopanax pictus", J Plant Res, 119, pp.195~203 (2006)
- García D, "Scale-dependent effects of habitat fragmentation on hawthorn pollination, frugivory, and seed predation", Conserv Biol, 21, pp.400~411 (2007)
- Ghazoul J, "Disturbance-induced density-dependent seed set in Shorea siamensis (Dipterocarpaceae), a tropical forest tree", J Ecol, 86, pp.462~473 (1998)
- Gilbert GS, "Evolutionary ecology of plant diseases in natural ecosystems", Annu Rev Phytopathol, 40, pp.13~43 (2002)
- House SM, "Pollination success in a population of dioecious rain forest trees", Oecologia, 96, pp.555~561 (1993)
- Howe H, "When seed dispersal matters", Bio-Science, 54, pp.651~660 (2004)
- Hyatt LA, "The distance dependence prediction of the Janzen-Connell hypothesis: a meta-analysis", Oikos, 103, pp.590~602 (2003)
- Iida S, "Forest fragmentation and its effect on species diversity in sub-urban coppice forests in Japan", For Ecol Manage, 73, pp.197~210 (1995)
- Ito K, "Wild Flowers of Japan, Woody Plants I", pp.52~65 (1989), Heibonsha
- Jakobsson A, "Distance to semi‑natural grassland influences seed production of insect‑pollinated herbs", Oecologia, 175, pp.199~208 (2014)
- Janzen DH, "Herbivores and the number of tree species in tropical forests", Am Nat, 104, pp.501~528 (1970)
- Janzen DH, "Seed predation by animals", Annu Rev Ecol Syst, 2, pp.465~492 (1971)
- "The mean annual and maen monthly AMeDAS data in Huchu" (1981)[URL]
- Knapp EE, "Pollen-limited reproduction in blue oak: implications for wind pollination in fragmented populations", Oecologia, 128, pp.48~55 (2001)
- Lambers JHR, "Density-dependent mortality and the latitudinal gradient in species diversity", Nature, 417, pp.732~735 (2002)
- Mangan SA, "Negative plant–soil feedback predicts tree-species relative abundance in a tropical forest", Nature, 466, pp.752~755 (2010)
- Masaki T, "Community structure of a species-rich temperate forest, Ogawa Forest Reserve, central Japan", Vegetatio, 98, pp.97~111 (1992)
- Miyawaki A, "Vegetation of Japan: Kanto. Vol, 7" (1986), Shibundo
- Nakanishi S, "Illustration of Vegetation in Japan, Vol. I, Forest Vegetation" (1983), Hoikusha
- Petermann JS, "Janzen–Connell effects are widespread and strong enough to maintain diversity in grasslands", Ecology, 89, pp.2399~2406 (2008)
- R Core Team, "R: A language and environment for statistical computing", R Foundation for Statistical Computing, ~ (2014)
- Shibata M, "Forest Ecology, with Long-term Perspectives", pp.39~57 (2006), Bun-ichi Sogo Shuppan Co
- Shibata M, "Effects of abiotic and biotic factors and stochasticity on tree regeneration in a temperate forest community", Ecoscience, 17, pp.137~145 (2010)
- Shibata M, "Synchronized annual seed production by 16 principal tree species in a temperate deciduous forest, Japan", Ecology, 83, pp.1727~1742 (2002)
- Silander JA Jr, "Density−dependent control of reproductive success in Cassia biflora", Biotropica, 10, pp.292~296 (1978)
- Silvertown JW, "The evolutionary ecology of mast seeding in trees", Biol J Linn Soc, 14, pp.235~250 (1980)
- Steffan-Dewenter I, "Pollination, seed set and seed predation on a landscape scale", Proc R Soc Lond B, 268, pp.1685~1690 (2001)