Search Results - "Yeaton, RI"

Seed dynamics of Themeda triandra in the montane grasslands of South Africa by Everson, TM, Yeaton, RI, Everson, CS

“…Seed production, viability, dispersal, predation and seed banks of Themeda triandra were determined to assess the potential of the seeds of this indigenous…”
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The replacement of arborescent cactus species along a climatic gradient in the southern Chihuahuan Desert: competitive hierarchies and response to freezing temperatures by Flores F, J.-L, Yeaton, R.I

“…In the southern region of the southern Chihuahuan Desert three common species of arborescent cacti are distributed over a north-west to south-east climatic…”
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Mean annual rainfall and the population growth (1993–2002) and potential distribution of Themeda triandra in the shrubby vegetation of the southern Nama-karoo by Smith, F.R., Yeaton, R.I., Cowling, R.M.

“…We investigated the relationship between mean annual rainfall (MAR) and the population growth (1993–2002) of Themeda triandra, to test the hypothesis that…”
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Disturbance by the mound-building termite, Trinervitermes trinervoides, and vegetation patch dynamics in a semi-arid, southern African grassland by Smith, F.R, Yeaton, R.I

“…Changes in the composition and abundance of grasses and shrubs, soil fertility, and the productivity and nutrition of the grass, Themeda triandra, were…”
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Porcupines, Fires and the Dynamics of the Tree Layer of the Burkea Africana Savanna by Yeaton, R. I.

“…(1) The tree layer of the Eragrostis pallens-Burkea africana savanna is composed primarily of Terminalia sericea and B. africana with other tree species…”
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A Cyclical Relationship Between Larrea Tridentata and Opuntia Leptocaulis in the Northern Chihuahuan Desert by Yeaton, Richard I.

“…(1) Analysis of the relationships and performance of Larrea tridentata and Opuntia leptocaulis in the Big Bend National Park, Texas (Chihuahuan Desert),…”
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Structure and function of the Namib dune grasslands: characteristics of the environmental gradients and species distributions by Yeaton, R.I

“…(1) Associations of perennial grasses on dune slopes in the Namib Desert were studied across a complex environmental gradient from the Atlantic Ocean (west) to…”
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The Dynamics of a Succulent Karoo Vegetation: A Study of Species Association and Recruitment by Yeaton, R. I., Esler, K. J.

“…Strong inference techniques were used in a preliminary study of the structure and dynamics of the vegetation in the Prince Albert region of the Great Karoo,…”
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Organization of vegetation mosaics in the Acacia Schaffneri-Opuntia streptacantha association, Southern Chihuahuan Desert, Mexico by Yeaton, R.I, Romero Manzanares, A

“…(1) A preliminary analysis of the species-rich Acacia schaffneri-Opuntia streptacantha association in the southern Chihuahuan Desert, Mexico, used data…”
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An Ecological Analysis of Chaparral and Pine Forest Bird Communities on Santa Cruz Island and Mainland California by Yeaton, Richard Ivan

“…A comparative study of chaparral and pine forest bird communities on Santa Cruz Island and adjacent mainland areas was made during 1969-72. Five fewer species…”
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Social Behavior and Social Organization in Richardson's Ground Squirrel (Spermophilus richardsonii) in Saskatchewan by Yeaton, Richard I.

“…Richardson's ground squirrels, Spermophilus richardsonii, are territorial in Saskatchewan. Males defend territories prior to, and during, the mating period…”
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Competition and Spacing in Plant Communities: Differential Mortality of White Pine (Pinus strobus L.) in a New England Woodlot by Yeaton, Richard I.

“…A relatively pure, uneven-aged stand of white pine (Pinus strobus L.) was studied to examine the relationship between differential mortality and the subsequent…”
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Intraspecific competition in a population of the stilt palm, Socratea durissima (Oerst.) Wendl. on Barro Colorado Island, Panama by Yeaton R.I

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Competition and Spacing in Plant Communities: The Arizona Upland Association by Yeaton, Richard I., Travis, Joseph, Gilinsky, Ellen

“…Spacing and competition were studied within and between species of the `Arizona upland association' in Organ Pipe Cactus National Monument. Larrea tridentata,…”
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pattern of colonization of epiphytes on calabash trees (Crescentia alata HBK.) in Guanacaste Province, Costa Rica by Yeaton, R.I, Gladstone, D.E

“…We examined the structure of the community of epiphytes growing on Crescentia alba trees in Santa Rosa National Park. Costa Rica. Four orchid species were…”
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The Distribution of Cacti along Environmental Gradients in the Sonoran and Mohave Deserts by Yeaton, Richard I., Cody, Martin L.

“…(1) The distribution of species of cacti along gradients of aspect and angle of slope is described and compared for a species-rich community in the Sonoran…”
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Competition and spacing in plant communities: the northern -Mohave Desert by Yeaton, R.I, Cody, M.L

“…Intraspecific and interspecific spacing and competition were studied in a diverse plant community in the northern Mohave Desert. Measurements of the sizes of…”
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Aspects of the population biology of sugar pine (Pinus lambertiana Dougl.) on an elevational gradient in the Sierra Nevada of central California by Yeaton, R.I

“…Three populations of sugar pine (Pinus lambertiana Dougl.) were studied at low, middle and upper points in its elevational distribution on the western slopes…”
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Competitive release in island song sparrow populations by Yeaton, R I, Cody, M L

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Microhabitat differences between Opuntia parryi and Opuntia littoralis (Cactaceae) in the mixed chaparral-inland coastal sage association by Yeaton R.I, Layendecker E, Sly K.S, Eckert R

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