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Ecotypic responses of switchgrass to altered precipitation
Functional Plant Biology, 2012Anthropogenic climate change is projected to alter precipitation patterns, resulting in novel environments for plants. The responses of dominant plant species (e.g. Panicum virgatum L. (switchgrass)) to climate changes can drive broader ecosystem processes such as primary productivity. Using a rainfall mesocosm facility, three ecotypes of P.
Jeffrey C, Hartman +2 more
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CHARACTERISATION OF OLIVE WILD ECOTYPES
Acta Horticulturae, 1999Because of the ecosystem characteristics, wild olive varieties (Olea europnea L. var. oleaster Hoff, et Lk.) are widely spread in Sardinia as a typical component of the Mediterranean maquis. In order to obtain more information on the possibility to use wild olives in breeding programs for olive growing a preliminary study was carried out on the genetic
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Ecotype diversification of an abundant Roseobacter lineage
Environmental Microbiology, 2017Summary The Roseobacter DC5‐80‐3 cluster (also known as the RCA clade) is among the most abundant bacterial lineages in temperate and polar oceans. Previous studies revealed two phylotypes within this cluster that are distinctly distributed in the Antarctic and other ocean provinces.
Ying, Sun +3 more
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Temperature Ecotypes in Seaweeds: Adaptive Significance and Biogeographic Implications
Botanica Marina, 1994We examined the existence of temperature ecotypes in seaweed species from the North Atlantic Ocean belonging to different biogeographic groups. Temperature ranges for survival, growth and reproduction were determined in culture for a total of 68 isolates belonging to 18 species.
Breeman, A. M., Pakker, H.
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Control of Johnsongrass Ecotypes
Weed Science, 1971Field experiments were conducted to study the effectiveness of 2,2-dichloropropionic acid (dalapon) for the control of 55 morphologically distinct ecotypes of johnsongrass (Sorghum halepense(L.) Pers.) collected throughout the United States and from several foreign countries.
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Electrophoretic differences between sympatric ecotypes
Nature, 1975ELECTROPHORESIS has been used extensively for characterising genetic variability within and between natural populations1,2 but has not been applied to sympatric ecotypes. In the mosquito Aedes aegypti a dark feral form predominates throughout sub-Saharan Africa, but elsewhere in the tropics and moist subtropics a paler domestic form is found.
J A, Scott, G A, McClelland
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Ecotype differentiation in Capsella
Vegetatio, 1990Seed samples were collected from wild populations of Capsella bursa-pastoris growing along a cline from low elevations to the high mountain region in Switzerland and from different latitudes in Scandinavia. Progeny were grown in open-field random block experiments, in transplantation experiments and in growth chambers.
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Ecotypes and Community Function
The American Naturalist, 1960The result of natural selection is commonly a pattern of ecotypic variation within a species. This has proven to be of rather general occurrence among trees, shrubs, grasses, and herbs, annual and perennial. Among animal species, the demonstration is less general, but includes examples among insects, fishes, amphibians, and rodents.
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The History of the Family, 2000
Ecological arguments have long been used in research to explain the forms of peasant households. In the rich family literature concerning the European Alps they hold a particularly prominent position. Using alpine macro- and microdata, the article shows that the proposed ecological models do not hold up under scrutiny, and that sociopolitical ...
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Ecological arguments have long been used in research to explain the forms of peasant households. In the rich family literature concerning the European Alps they hold a particularly prominent position. Using alpine macro- and microdata, the article shows that the proposed ecological models do not hold up under scrutiny, and that sociopolitical ...
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Ecotypes and Ecosystem Function
BioScience, 1969ecotype in ecosystem function is primarily one of allowing a community of organisms to adjust to its habitat." The second: "The simultaneous selection of ecotypic variants within different kinds of organisms occupying a given area results in harmonious functions of a particular ecosystem." The third: "The selection of eco-genetic gradients results in ...
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