Item talk:Q233257
From geokb
{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "Article", "additionalType": "Journal Article", "name": "Energy allocation patterns of a sprouting and nonsprouting species of Arctostaphylos in the California chaparral", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "1007798", "url": "https://pubs.usgs.gov/publication/1007798" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 1007798 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.2307/2424710", "url": "https://doi.org/10.2307/2424710" } ], "journal": { "@type": "Periodical", "name": "American Midland Naturalist", "volumeNumber": "98", "issueNumber": "1" }, "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "American Midland Naturalist" } ], "datePublished": "1977", "dateModified": "2023-02-15", "abstract": "The r- and K-selection theory was used to generate testable hypotheses about patterns of energy allocation in two chaparral shrubs of different reproductive strategies. Terminal-branchlet vegetative and reproductive biomass of the nonsprouting Arctostaphylos glauca and the sprouting A. glandulosa were sampled in a 23-year-old and a 90-year-old stand of chaparral to test the predictions that: (1) the terminal vegetative growth (g dry weight/m2 of areal coverage) would be equal in the two species, in both stands; (2) oven dry weight (g) of reproductive parts/m2 of areal coverage would be greater in A. glauca than in A. glandulosa in both aged populations; (3) allocation to reproductive parts by the shrubs in the 23-year-old stand would be greater than (or equal to) that of the 90-year-old shrubs. The amount of terminal vegetative growth was equal for both species in the 23-year-old and the 90-year-old stands. There was no statistically significant difference in the weight of fruits produced by the two species in the 23-year-old stand. However, fruit production by A. glauca was significantly greater than by A. glandulosa in the 90-year-old stand. Fruit production was also significantly greater for the older A. glauca shrubs than for those in the 23-year-old stand. 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