EXPERIMENTAL ECOLOGICAL GENETICS IN PLANTAGO . VII. REPRODUCTIVE EFFORT IN POPULATIONS OF P. LANCEOLATA L.
نویسندگان
چکیده
منابع مشابه
Reproductive effort in viscous populations.
Here I study a kin selection model of reproductive effort, the allocation of resources to fecundity versus survival, in a patch-structured population. Breeding females remain in the same patch for life. Offspring have costly, partial long-distance dispersal and compete for breeding sites, which become vacant upon the death of previous occupants. The main result is that the evolutionarily stable...
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Background: Several therapeutic effects including anti-asthma and dyspnea have been described for Plantago lanceolata. In the present study the antitussive effect of this plant was evaluated. Methods: The antitussive effects of aerosols of two different concentrations of Soxhlet and macerated ethanolic extracts, codeine and saline were tested by counting the number of coughs produced due to aer...
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To determine the evolutionary importance of parental environmental effects in natural populations, we must begin to measure the magnitude of these effects in the field. For this reason, we conducted a combined growth chamber-field experiment to measure parental temperature effects in Plantago lanceolata. We grew in the field offspring of controlled crosses of chamber-grown parents subjected to ...
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Plantago lanceolata L. is a herb species with a broad distribution in grasslands throughout the temperate world. The leaf is highly palatable to grazing animals, providing a mineralrich forage. The species is rapid to establish, grows on a wide range of agricultural soils and is tolerant of drought and of many common diseases and pests. Two productive upright cultivars of plantain have been bre...
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An experiment was conducted using a [6, 6-H]glucose isotope dilution method to determine the effects of plantain (Plantago lanceolata L.) on plasma glucose metabolism in sheep taken from a thermoneutral environment and exposed to a hot environment. The sheep were fed either mixed hay (MH) of orchardgrass (Dactylis glomerata L.) and reed canarygrass (Phalaris arundinacea L.) at a 60:40 ratio or ...
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ژورنال
عنوان ژورنال: Evolution
سال: 1982
ISSN: 0014-3820,1558-5646
DOI: 10.1111/j.1558-5646.1982.tb05440.x