Results 191 to 200 of about 172,908 (211)
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Scatter-and clump-dispersal and seedling demography: hypothesis and implications
Oecologia, 1989Fruit-eating animals deposit viable seeds in patterns that determine the conditions under which seeds and seedlings live or die. Many tree species are scatter-dispersed by birds, bats, or other small frugivores that regurgitate, defecate, or drop seeds singly or in pairs.
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Seed and Seedling Demography of Four Co‐Occurring Carpinus Species in a Temperate Deciduous Forest
Ecology, 1995In order to clarify regeneration traits and their fitness, we compared seed fall, seedling emergence, and first—year seedling of four co—occurring species. Carpinus tschonoskii, C. japonica, C. laxiflora, and C. cordata, in an old—growth temperate deciduous forest in Ogawa Forest Reserve, central Japan. Seedling emergence ratio of C.
Mitsue Shibata, Tohru Nakashizuka
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Plant Ecology, 2004
Selection of individuals in tropical trees, occurs mainly in the seedling phase, which in part explains the low densities of most species. The main objective of this work was to gain an insight into those factors that influence growth and survival of Manilkara zapota seedlings, one of the most abundant species in the lowland forests of Mexico and ...
Juan Antonio Cruz-Rodríguez +1 more
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Selection of individuals in tropical trees, occurs mainly in the seedling phase, which in part explains the low densities of most species. The main objective of this work was to gain an insight into those factors that influence growth and survival of Manilkara zapota seedlings, one of the most abundant species in the lowland forests of Mexico and ...
Juan Antonio Cruz-Rodríguez +1 more
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1987
Adenostoma fasciculatum (chamise) forms the dominant element of chaparral ecosystems in California. This evergreen, ericoid-leaved shrub occurs as a codominant in mixed chaparral or an overwhelming dominant in chamise chaparral, being present in over 70% of the chaparral stands in the state (Hanes 1971).
P. W. Rundel +3 more
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Adenostoma fasciculatum (chamise) forms the dominant element of chaparral ecosystems in California. This evergreen, ericoid-leaved shrub occurs as a codominant in mixed chaparral or an overwhelming dominant in chamise chaparral, being present in over 70% of the chaparral stands in the state (Hanes 1971).
P. W. Rundel +3 more
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The Demography of Sweet Buckeye (Aesculus octandra Marsh.) Seeds and Seedlings
Bulletin of the Torrey Botanical Club, 1984LEVY, F. (Dept. of Biology, Pikeville College, Pikeville, KY 41501). The Demography of sweet buckeye (Aesculus octandra Marsh.) seed and seedlings. Bull. Torrey Bot. Club 11 1: 307315. 1984. Experiments were conducted with seeds and seedlings of sweet buckeye (Aesculus octandra Marsh.) to determine germination and early survival patterns and explain ...
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MICRO‐SPATIAL HETEROGENEITY AND SEEDLING DEMOGRAPHY IN SPECIES‐RICH GRASSLAND
New Phytologist, 1981It is suggested that spatial niche‐separation between grassland species occurs in the regeneration phase and that the differential response of species to micro‐variations in leaf cover may allow coexistence at high density. A technique for measuring heterogeneity in leaf‐cover on a scale of 1‐cm2 units (micro‐cover) and the demography of seedling ...
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Plant Ecology, 2005
This study examined whether topography-induced gradients in water potential and leaf litter depth contribute to species coexistence in tropical forests through species-specific effects on seedling emergence and mortality. Seedling emergence and mortality were followed for a period of 12 months in 36 (1 × 2 m) plots on Barro Colorado Island (BCI ...
Matthew I Daws +4 more
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This study examined whether topography-induced gradients in water potential and leaf litter depth contribute to species coexistence in tropical forests through species-specific effects on seedling emergence and mortality. Seedling emergence and mortality were followed for a period of 12 months in 36 (1 × 2 m) plots on Barro Colorado Island (BCI ...
Matthew I Daws +4 more
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Journal of Forest Research, 2005
To clarify the establishment pattern of Cryptomeria japonica seedlings, the demography of current-year seedlings was studied under various micro-environmental conditions for 2 years in a cool-temperate old-growth forest in the snowy region of Japan.
Kimiko Hirayama, Michinori Sakimoto
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To clarify the establishment pattern of Cryptomeria japonica seedlings, the demography of current-year seedlings was studied under various micro-environmental conditions for 2 years in a cool-temperate old-growth forest in the snowy region of Japan.
Kimiko Hirayama, Michinori Sakimoto
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Canadian Journal of Botany, 1995
This study examines the recruitment from seed of Salix setchelliana Ball, a prostrate clonal willow, which grows in the gravel-bar habitat of glacial rivers in Denali National Park, Alaska. Seeds of this species did not exhibit any dormancy. Under laboratory conditions, seeds moistened immediately after collection showed 100% germination, and percent ...
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This study examines the recruitment from seed of Salix setchelliana Ball, a prostrate clonal willow, which grows in the gravel-bar habitat of glacial rivers in Denali National Park, Alaska. Seeds of this species did not exhibit any dormancy. Under laboratory conditions, seeds moistened immediately after collection showed 100% germination, and percent ...
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