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  • Acaulospora laevis; Acaulospora laevis, standard deviation; Acaulospora mellea; Acaulospora scrobiculata; Acaulospora scrobiculata, standard deviation; Argentina; DATE/TIME; Diversity; Diversity, standard error; Entrophospora infrequens; Entrophospora infrequens, standard deviation; Evenness of species; Glomus aggregatum; Glomus aggregatum, standard deviation; Glomus claroideum; Glomus claroideum, standard deviation; Glomus constrictum; Glomus constrictum, standard deviation; Glomus intraradices; Glomus intraradices, standard deviation; Glomus sp.; Glomus sp., standard deviation; Hand corer; HCOR; Scutellospora biornata; Scutellospora biornata, standard deviation; Scutellospora sp.; Scutellospora sp., standard deviation; SierraGrande_Cordoba; Spores; Spores, standard deviation; Standard deviation; Treatment  (2)
  • Nutrient stress  (2)
  • Snowshoe hare  (2)
  • 6-hydroxycyclohexenone  (1)
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  • 1
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    (Table TS3) Spore density, diversity and evenness of different arbuscular mycorrhizal fungi morphotaxa 36 months after experimental removal of plant functional types, central Argentina (2009)
    PANGAEA
    Details
    Publication Date: 2023-09-30
    Keywords: Acaulospora laevis; Acaulospora laevis, standard deviation; Acaulospora mellea; Acaulospora scrobiculata; Acaulospora scrobiculata, standard deviation; Argentina; DATE/TIME; Diversity; Diversity, standard error; Entrophospora infrequens; Entrophospora infrequens, standard deviation; Evenness of species; Glomus aggregatum; Glomus aggregatum, standard deviation; Glomus claroideum; Glomus claroideum, standard deviation; Glomus constrictum; Glomus constrictum, standard deviation; Glomus intraradices; Glomus intraradices, standard deviation; Glomus sp.; Glomus sp., standard deviation; Hand corer; HCOR; Scutellospora biornata; Scutellospora biornata, standard deviation; Scutellospora sp.; Scutellospora sp., standard deviation; SierraGrande_Cordoba; Spores; Spores, standard deviation; Standard deviation; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 180 data points
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    DATA PANGAEA
  • 2
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    (Table 2) Spore density, diversity and evenness of different arbuscular mycorrhizal fungi morphotaxa 29 months after experimental removal of plant functional types, central Argentina (2009)
    PANGAEA
    Details
    Publication Date: 2023-09-30
    Keywords: Acaulospora laevis; Acaulospora laevis, standard deviation; Acaulospora mellea; Acaulospora scrobiculata; Acaulospora scrobiculata, standard deviation; Argentina; DATE/TIME; Diversity; Diversity, standard error; Entrophospora infrequens; Entrophospora infrequens, standard deviation; Evenness of species; Glomus aggregatum; Glomus aggregatum, standard deviation; Glomus claroideum; Glomus claroideum, standard deviation; Glomus constrictum; Glomus constrictum, standard deviation; Glomus intraradices; Glomus intraradices, standard deviation; Glomus sp.; Glomus sp., standard deviation; Hand corer; HCOR; Scutellospora biornata; Scutellospora biornata, standard deviation; Scutellospora sp.; Scutellospora sp., standard deviation; SierraGrande_Cordoba; Spores; Spores, standard deviation; Standard deviation; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 163 data points
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  • 3
    Electronic Resource
    Electronic Resource
    Environmental and physiological factors governing nutrient resorption efficiency in barley (1992)
    Springer
    Oecologia 90 (1992), S. 120-126 
    Details
    ISSN: 1432-1939
    Keywords: Nitrogen ; Nutrient stress ; Nutrient resorption ; Translocation ; Water stress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Barley plants (Hordeum vulgare cv. stepto) were grown in a greenhouse under two nutrient and water levels and four treatments intended to alter sourcesink relationships, in a factorial experiment designed to study factors governing efficiency of nutrient resorption from senescing leaves. Plant growth was enhanced in high-nutrient treatments, leading to higher concentrations of nitrogen (N) and phosphorus (P) in leaves and ears. Water stress reduced growth, but plants in waterstressed treatments had equal or higher nutrient concentrations than watered plants. Nutrient resorption efficiency was higher at low than at high nutrient availability, and was higher in watered than in water-stressed plants. Treatments in which sink strength was increased had enhanced resorption efficiency, as well as those in which the source activity was reduced. Our data show that the amount of nutrient resorbed and the efficiency of the resorption process depend on plant nutrient and water status, and that the presence of an active sink strongly enhances nutrient resorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317817
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Carbon/nutrient balance as a predictor of plant defense in Alaskan balsam poplar: Potential importance of metabolite turnover (1991)
    Springer
    Oecologia 88 (1991), S. 401-406 
    Details
    ISSN: 1432-1939
    Keywords: Carbon/nutrient balance hypothesis ; Plant defense ; Snowshoe hare ; Balsam poplar
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The carbon/nutrient balance hypothesis fails to correctly predict effects of fertilization and shading on concentrations of defensive metabolites in Alaskan balsam poplar (Populus balsamifera). Of six metabolites analyzed, only one responded in the predicted fashion to fertilization and one to shading. These results and those of other similar studies suggest that while the carbon/nutrient balance hypothesis may correctly predict the effects of fertilization and shading on the concentrations of metabolic “end products”, it fails for many metabolites because of the dynamics associated with their production and turnover. In metabolites that turn over, static concentration is a poor predictor of defensive investment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317585
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  • 5
    Electronic Resource
    Electronic Resource
    Response of winter chemical defense in Alaska paper birch and green alder to manipulation of plant carbon/nutrient balance (1987)
    Springer
    Oecologia 72 (1987), S. 510-514 
    Details
    ISSN: 1432-1939
    Keywords: Snowshoe hare ; Birch ; Alder ; Chemical defense ; Plant carbon/nutrient balance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Plant carbon/nutrient balance has been implicated as an important factor in plant defensive chemistry and palatability to herbivores. We tested this hypothesis by fertilizing juvenile growth form Alaska paper birch and green alder with N, P and N-plus-P in a balanced 2x2 factorial experiment. Additionally, we shaded unfertilized plants of both species. Fertilization with N and N-plus-P increased growth of Alaska paper birch, reduced the concentration of papyriferic acid in internodes and increased the palatability of birch twigs to snowshoe hares. Shading decreased birch growth, decreased the concentration of papyriferic acid in internodes and increased twig palatability. These results indicate that the defensive chemistry and palatability of winter-dormant juvenile Alaska paper birch are sensitive to soil fertility and shade. Conversely the defensive chemistry and palatability of green alder twigs to snowshoe hares were not significantly affected by soil fertility or shade. The greater sensitivity of Alaska paper birch defensive chemistry and palatability to snowshoe hares in comparison to green alder is in agreement with the hypothesis that early successional woody plants that are adapted to high resource availability are more plastic in their chemical responses to the physical environment than are species from less favorable environments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378975
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  • 6
    Electronic Resource
    Electronic Resource
    Winter chemical defense of Alaskan balsam poplar against snowshoe hares (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 1941-1959 
    Details
    ISSN: 1573-1561
    Keywords: Balsam poplar ; Populus balsamifera ; snowshoe hare ; Lepus americanus ; plant chemical defense ; herbivore ; cineol ; benzyl alcohol ; bisabolol ; 6-hydroxycyclohexenone ; salicaldehyde
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Palatabilities of parts and growth stages of balsam poplar (Populus balsamifera) to snowshoe hares (Lepus americanus) are related to concentrations of specific plant metabolites that act as antifeedants. Buds are defended from hares by cineol, benzyl alcohol, and (+)-α-bisabolol. Internodes are defended by 6-hydroxycylohexenone (6-HCH) and salicaldehyde. Although defense of interaodes depends upon both compounds, the defense of juvenile internodes is principally related to salicaldehyde concentration; the defense of internode current annual growth is principally related to 6-HCH concentration. The concentration of 6-HCH can be supplemented by the hydrolysis of phenol glycosides when plant tissue is disrupted, raising the possibility of a dynamic element of the chemical defense of poplar.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01020507
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  • 7
    Electronic Resource
    Electronic Resource
    Adaptation of selected trees and grasses to low availability of phosphorus (1983)
    Springer
    Plant and soil 72 (1983), S. 283-287 
    Details
    ISSN: 1573-5036
    Keywords: Barley ; Chinochloa ; Growth rate ; Nutrient deficiency ; Nutrient stress ; Phosphorus fractions ; Root-shoot ratio ; Taiga
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract High-nutrient-adapted and low-nutrient-adapted species of New Zealand tussock grasses (Chionochloa), barley (Hordeum), and several taiga trees were grown at three rates of phosphorus supply. Low-nutrient-adapted species in each group of species had similar (grasses) or lower (trees) capacities for phosphate absorption, were less efficient in producing biomass (i.e. had higher nutrient concentrations), and grew more slowly than high-nutrient-adapted species. I conclude that the major adaptation to low nutrient availability in each of these comparisons is a slow growth rate that reduces the annual nutrient requirement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181967
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