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  • Female
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  • Phosphorylation
  • United States
  • Springer  (18)
  • American Meteorological Society
  • MDPI Publishing
  • Protein Phosphorylation in Human Health
  • 2000-2004  (7)
  • 1985-1989  (11)
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  • 1
    Digitale Medien
    Digitale Medien
    Early tutoring and adult reproductive behaviour in female domestic canary (Serinus canaria) (2000)
    Springer
    Animal cognition 3 (2000), S. 45-51 
    Details
    ISSN: 1435-9456
    Schlagwort(e): Key words Songbird ; Female ; Sexual imprinting ; Sexual preferences ; Reproductive activity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract We studied the effect of early tutoring on the subsequent sexual preferences and reproductive activity of female domestic canaries (Serinus canaria). Young female canaries were exposed during the first 4 months of life to songs of either domestic or wild canaries. When adult, these females were again exposed to domestic or wild songs. In the first experiment, the sexual responses of the females to unfamiliar domestic and wild songs were quantified with the copulation solicitation display (CSD) assay. In the second experiment, the same females were tested again with modified tutoring songs. In the third experiment, song stimulation of nest-building and egg-laying was studied. Domestic-strain-tutored females gave more CSDs to domestic than to wild songs. In contrast, wild-strain-tutored females showed no sexual preference. We propose that the sexual preference of adult domestic-strain-tutored female canaries for domestic songs is the consequence of learning and categorisation processes. The discrepancy between the results of the domestic-strain-tutored females and those of the wild-strain-tutored females suggests that female canaries have a predisposition to learn songs of their own strain rather than songs of an alien strain. In the third experiment nest-building and egg-laying activities appeared to be unaffected by early tutoring conditions: there was no significant differential effect of the different tutoring and exposure conditions on nest-building and egg-laying scores. Mate attraction and stimulation of females’ reproductive activity appear to be two separate functions of male song, which may have been shaped by different evolutionary constraints.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100710050049
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  • 2
    Digitale Medien
    Digitale Medien
    Understanding agri-food networks as social relations (2000)
    Springer
    Agriculture and human values 17 (2000), S. 279-283 
    Details
    ISSN: 1572-8366
    Schlagwort(e): Agri-food network ; Gender ; Sustainable agriculture ; United States
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Actor network theory and supply chainmanagement theory provide suggestive researchdirections for understanding regional agri-foodnetworks. These theories claim that relationshipsbased upon trust and cooperation are critical to thestrength and vitality of the network. This means thatexploring and detailing these relationships among thesuppliers, producers, workers, processors, brokers,wholesalers, and retailers within specific regionalgeographies of these networks are critical forfurthering cooperation and trust. Key areas ofcooperation include resource sharing andapprenticeship programs. Employing food networks as akey unit of contextual analysis will deepen ourunderstanding of how to enhance their resiliency andvibrancy. Important questions can be raised about thedifference gender makes for farmers, brokers,entrepreneurs, and workers in local food networks.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1007692303118
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  • 3
    Digitale Medien
    Digitale Medien
    Summer/winter differences in the serum 25-hydroxyvitamin D3 and parathyroid hormone levels of Japanese women (2000)
    Springer
    International journal of biometeorology 44 (2000), S. 186-189 
    Details
    ISSN: 1432-1254
    Schlagwort(e): Keywords Correlation ; Female ; 25-Hydroxyvitamin D3 (cholecalciferol) ; PTH ; Seasonal difference
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geographie , Physik
    Notizen: Abstract  Serum 25-hydroxyvitamin D3 [25(OH)D3] is produced in the skin in response to exposure to ultraviolet radiation, and is a good indicator of vitamin D nutritional status. The aim of this study was to determine summer/winter differences in serum 25(OH)D3 and parathyroid hormone (PTH) in Japanese women and how the summer and winter values are related. The subjects were 122 healthy Japanese women aged 45–81 years (average age: 65.7 years). They were medically examined twice, in September 1997 and February 1999. Serum 25(OH)D3 and intact PTH were determined by high-performance liquid chromatography and a two-site immunoradiometric assay respectively. Lifestyle information was obtained through an interview. The seasonal differences (winter minus summer) in 25(OH)D3 [Δ25(OH)D3] and intact PTH concentrations were –18.8 nmol/l (SD 19.2, P〈0.0001) and 0.98pmol/l (SD 1.02, P〈0.0001) respectively. The correlation coefficient between summer (x) and winter (y) 25(OH)D3 levels was 0.462 (P〈0.0001), with a linearly fitted line of y=0.42x+26.4. This relationship was interpreted as subjects with higher summer 25(OH)D3 values having greater reductions in winter 25(OH)D3 concentrations. There were inter-individual differences in Δ25(OH)D3, although the summer and winter 25(OH)D3 concentrations were well-correlated. Since Δ25(OH)D3 was not associated with any of the lifestyle factors, seasonal differences in the 25(OH)D3 concentrations of an individual appeared to reflect her ability to produce 25(OH)D3 photochemically in the skin. Sun bathing would be a less effective means of attaining adequate vitamin D nutritional status in a person with a small seasonal difference in 25(OH)D3, i.e., one with a low 25(OH)D3 level.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004840000067
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  • 4
    Digitale Medien
    Digitale Medien
    Phosphorylation is required for high-affinity binding of DBP, a yeast mitochondrial site-specific RNA binding protein (2000)
    Springer
    Current genetics 37 (2000), S. 356-363 
    Details
    ISSN: 1432-0983
    Schlagwort(e): Key words Dodecamer sequence ; RNA binding protein ; Phosphorylation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract All yeast mitochondrial mRNAs terminate at their 3′ ends with a conserved dodecamer sequence, a site for high-affinity binding by DBP (dodecamer binding protein). Using purified DBP, we show that binding requires an intact dodecamer site and is enhanced by the presence in an oligonucleotide of the immediate 4–5 upstream nucleotides. Binding affinity varied from 0.25 to 0.85 nM towards a set of RNA oligonucleotides containing messenger specific upstream sequences in addition to the dodecamer site. Furthermore, we show that phosphatase treatment of DBP abolishes its specific binding, indicating the involvement of reversible phosphorylation in the regulation of its binding activities. This finding will further our understanding of the mechanism of DBP in the regulation of RNA metabolism in yeast mitochondria.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s002940000117
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  • 5
    Digitale Medien
    Digitale Medien
    The role of Cdc25 phosphatases in cell cycle checkpoints (2000)
    Springer
    Protoplasma 211 (2000), S. 8-11 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Cdc25 phosphatase ; Cell cycle ; DNA damage ; Checkpoint ; Cyclin-dependent kinase ; Phosphorylation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The major driving forces in the eukaryotic cell cycle are the cyclin-dependent kinases (Cdk). Cdks can be activated through dephosphorylation of inhibitory phosphorylations catalyzed by the Cdc25 phosphatase family. In higher-eukaryotic cells, there exist three Cdc25 family members, Cdc25A, Cdc25B, and Cdc25C. While Cdc25A plays a major role at the G1-to-S phase transition, Cdc25B and C are required for entry into mitosis. The regulation of Cdc25C is crucial for the operation of the DNA-damage checkpoint. Two protein kinases, Chk1 and Cds1, can be activated in response to DNA damage or in the presence of unreplicated DNA. Chk1 and Cds1 may phosphorylate Cdc25C to prevent entry into mitosis through inhibition of Cdc2 (Cdk1) dephosphorylation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01279894
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  • 6
    Digitale Medien
    Digitale Medien
    Preliminary distributional analysis of US endangered bird species (2000)
    Springer
    Biodiversity and conservation 9 (2000), S. 1313-1322 
    Details
    ISSN: 1572-9710
    Schlagwort(e): BIOCLIM ; birds ; conservation strategies ; ecological niche modeling ; endangered species ; GARP ; United States
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract A first exploration of applications of ecological niche modeling and geographic distributional prediction to endangered species protection is developed. Foci of richness of endangered bird species are identified in coastal California and along the southern fringe of the United States. Species included on the Endangered Species List on the basis of peripheral populations inflate these concentrations considerably. Species without protection in the US National Park System are focused particularly in peninsular Florida. Application of this methodology to additional taxa and regions holds promise for diverse conservation applications.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1008924322405
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  • 7
    Digitale Medien
    Digitale Medien
    Western migrants in central Europe: Isolated individuals or members of transnational communities? (2000)
    Springer
    GeoJournal 50 (2000), S. 105-108 
    Details
    ISSN: 1572-9893
    Schlagwort(e): community ; Czech Republic ; East Central Europe ; ethnicity ; migration ; Prague ; social exclusion ; transnationalism ; United States
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geographie
    Notizen: Abstract Migration flows from western Europe, the United States and Canada to east central Europe have received little attention so far. But numbers are now considerable and in the context of globalisation it seems appropriate to conceptualise communities of Westerners in terms of transnational social spaces as defined by Glick Schiller et al. Study of Americans in Prague reveals three main groups: enterprise managers, lifestyle migrants and entrepreneurs in small and medium-sized enterprises. All are engaged in a variety of different processes of community-building, often with clear trends towards a new transnationalism. Yet, the individual attempt to live in two societies is limited by the marked boundaries of the communities and by the degree of social exclusion which they experience from the majority population.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1007183532417
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  • 8
    Digitale Medien
    Digitale Medien
    The effect of airline pilot characteristics on perceptions of job safety risks (1989)
    Springer
    Journal of risk and uncertainty 2 (1989), S. 335-351 
    Details
    ISSN: 1573-0476
    Schlagwort(e): aeronautics-commercial ; safety ; United States ; employees ; perceptions
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Wirtschaftswissenschaften
    Notizen: Abstract In a large cross-sectional sample, commercial airline pilots in the United States were asked for their perceptions of job safety hazards. Regression techniques are employed to investigate the relationship between these perceptions and both the length of tenure of pilots and their specific employer within the industry. The latter is found to have a far more significant impact on risk perception. No evidence is found for a learning curve of job risk with respect to experience. Pilots' assessments of inadequacies in training and aircraft maintenance are found to be significantly related to the financial health of their employer.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00356860
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  • 9
    Digitale Medien
    Digitale Medien
    Primary structure of the ribosomal protein gene S6 from Schizosaccharomyces pombe (1988)
    Springer
    Current genetics 13 (1988), S. 57-63 
    Details
    ISSN: 1432-0983
    Schlagwort(e): Fission yeast ; Ribosomal protein gene ; Phosphorylation ; Termination
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary We have determined the nucleotide sequence of a ribosomal protein gene which codes for the ribosomal protein S6 (rps6). The sequence analysis revealed that the gene comprises 239 amino acids, giving rise to a basic protein with a molecular weight of 27,502 Da. The product of this gene is the equivalent of the ribosomal protein S1O from Saccharomyces cerevisiae. Northern analyses and S1 mapping of both the 5′ and the 3′ end of the transcripts of this gene show that it is transcribed into three distinct transcripts with different sizes and heterogeneous termini. In the DNA region flanking the coding sequence, several conserved elements are present that may be involved in the transcription initiation and termination.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00365757
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  • 10
    Digitale Medien
    Digitale Medien
    The X-ray induced G2 arrest in mouse eggs: a maternal effect involving a lack of polypeptide phosphorylation (1988)
    Springer
    Development genes and evolution 197 (1988), S. 302-304 
    Details
    ISSN: 1432-041X
    Schlagwort(e): Mouse egg ; Maternal effect ; X irradiation ; Cell cycle ; Phosphorylation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary In some strains of mice, eggs when X irradiated during the pronuclear stage, undergo a mitotic block in the G2 phase of the first cell cycle and cleave when the second division takes place in controls. The importance of this effect varies considerably with the strain and depends exclusively on the maternal genotype. In previous work, two-dimensional electrophoresis showed that eggs blocked at the one-cell stage after irradiation, undergo the same modifications in polypeptide synthesis as two-cell controls of the same age, except at the time of normal first mitosis, where three polypeptide sets of 30, 35 and 45 kDa appear only in cleaving controls. In the present study, we have found phosphorylations in dividing controls, on polypeptides of 30, 35 and 45 kDa. These phosphorylations are not seen in blocked irradiated eggs.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00380025
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  • 11
    Digitale Medien
    Digitale Medien
    Phosphorylation of neuronal microtubule proteins (1988)
    Springer
    Protoplasma 145 (1988), S. 82-88 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Tubulin ; Microtubule-associated proteins ; Phosphorylation ; Neuronal differentiation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Phosphorylation of microtubule protein was tested during differentiation in neuroblastoma cells. Two microtubule proteins were modified, β-tubulin and MAP-1 B. In the first case less than one mol of phosphate was incorporated per mol of protein, whereas several residues were phosphorylated in MAP-1 B. The localization of the phosphorylated residue of β-tubulin indicated that it is present in an isoform, at its carboxy-terminal region, and probably correspond to the serine 444. When comparing thein vivo phosphorylation of tubulin with that produced by casein kinase IIin vitro, a similar pattern was obtained. A similar result was found upon the comparison of the phosphorylation pattern of MAP-1 B after phosphorylationin vivo andin vitro using casein kinase II. These results suggest a role for casein kinase II in the phosphorylation of microtubule proteins in neuroblastoma cells. A result similar to that found for neuroblastoma cells was found after injection of [32P]phosphate into the brain of seven-day-old rats; however, a more complex pattern was found for the phosphorylationin vivo in adult rats.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01349342
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  • 12
    Digitale Medien
    Digitale Medien
    ATP formation onset lag and post-illumination phosphorylation initiated with single-turnover flashes. III. Characterization of the ATP formation onset lag and post-illumination phosphorylation for thylakoids exhibiting localized or bulk-phase delocalized energy coupling (1988)
    Springer
    Journal of bioenergetics and biomembranes 20 (1988), S. 129-154 
    Details
    ISSN: 1573-6881
    Schlagwort(e): Phosphorylation ; localized energy coupling ; delocalized energy coupling ; proton gradients
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Physik
    Notizen: Abstract When 100 mM KCl replaced sucrose in a chloroplast thylakoid stock suspension buffer, the membranes were converted from a localized proton gradient to a delocalized proton gradient energy coupling mode. The KCl-suspended but not the sucrose-suspended thylakoids showed pyridine-dependent extensions of the ATP onset lag and pyridine effects on post-illumination phosphorylation. The ATP formation assays were performed in a medium of identical composition, using about a 200-fold dilution of the stock thylakoid suspension; hence the different responses were due to the pretreatment, and not the conditions present in the phosphorylation assay. Such permeable buffer effects on ATP formation provide a clear indicator of delocalized proton gradients as the driving force for phosphorylation. The pyridine-dependent increases in the onset lags (and effects on post-illumination phosphorylation) were not due to different ionic conductivities of the membranes (measured by the 515 nm electrochromic absorption change), H+/e − ratios, or electron transport capacities for the two thylakoid preparations. Thylakoid volumes and [ 14C]pyridine equilibration were similar with both preparations. The KCl-induced shift toward a bulk-phase delocalized energy coupling mode was reversed when the thylakoids were placed back in a low-salt medium. Proton uptake, at the ATP-formation energization threshold flash number, was much larger in the KCl-treated thylakoids and they also had a longer ATP formation onset lag, when no pyridine was present. These results are consistent with the salt treatment exposing additional endogenous buffering groups for interaction with the proton gradient. The concomitant appearance of the pyridine buffer effects implies that the additional endogenous buffering groups must be located on proteins directly exposed in the aqueous lumen phase. Kinetic analysis of the decay of the post-illumination phosphorylation in the two thylakoid preparations showed different apparent first-order rate constants, consistent with there being two different compartments contributing to the proton reservoirs that energize ATP formation. We suggest that the two compartments are a membrane-phase localized compartment operative in the sucrose-treated thylakoids and the bulk lumen phase into which protons readily equilibrate in the KCl-treated thylakoids.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00762141
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  • 13
    Digitale Medien
    Digitale Medien
    Inhibition of protein phosphorylation by chloroquine (1987)
    Springer
    Archives of microbiology 147 (1987), S. 235-239 
    Details
    ISSN: 1432-072X
    Schlagwort(e): Chloroquine ; Yeast ; Fructose-1,6-bisphosphatase ; Phosphorylation ; Protein kinase
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The rapid phase of fructose-1,6-bisphosphatase (FBPase) inactivation following glucose addition to starved yeast cells [reported previously] is inhibited on addition of 10 mM chloroquine (CQ) at about pH 8. This inhibition of inactivation was shown to be due to the prevention of phosphorylation of the enzyme. CQ was also found to inhibit general protein phosphorylation in the yeast cells. Glycolysis, as observed by changes in intracellular glucose-6-phosphate and extracellular glucose and ethanol concentrations, was shown to be significantly inhibited in cells treated with CQ. Similarly, a decrease in ATP concentrations was observed. However, during the early stages of phosphorylation of FBPase, levels of ATP were similar in cells containing CQ as in those without CQ. Thus, decrease in ATP levels is not thought to be significantly responsible for the inhibition of protein phosphorylation. However, the phosphorylating activity of cyclic AMP-dependent protein kinases is inhibited in vitro by relatively low concentrations of CQ. Thus, prevention of protein phosphorylation by CQ is believed to be due to inhibition of protein kinases in yeast cells.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00463481
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  • 14
    Digitale Medien
    Digitale Medien
    A survey of dermatophytes isolated from human patients in the United States from 1982 to 1984 (1987)
    Springer
    Mycopathologia 98 (1987), S. 35-40 
    Details
    ISSN: 1573-0832
    Schlagwort(e): dermatophytes ; survey ; United States ; humans ; 1982/84
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract A survey of dermatophytes isolated from patients seeking medical advice was made from 1982 to 1984 in the United States. The survey included 59 locations with data from 49 cities and one state. Listing of the isolated dermatophytes and the frequency given by percentage of total follows: Trichophyton rubrum 46.8%, T. tonsurans 33.3%, T. mentagrophytes 10.1%, Microsporum canis 4.5%, Epidermophyton floccosum 3,5%, M. gypseum and T. verrucosum both 0.7%, M. audouinii and T. terrestre both 0.1%, and T. violaceum 0.06%. No isolations of M. ferrugineum or T. schoenleinii were reported. Temporal increases were observed for frequencies of T. mentagrophytes, T. tonsurans and M. canis, and decreases occurred for frequencies of E. floccosum and T. rubrum when the data from this survey were compared by the goodness of fit test to data of the 1979 to 1981 survey. The percent of dermatophyte isolations identified as T. tonsurans correlated significantly with the percentage of blacks in cities of 100000 or more people.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00431015
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  • 15
    Digitale Medien
    Digitale Medien
    A case of unusually early postpartum resumption of estrous cycling in a young female chimpanzee in the wild (1986)
    Springer
    Primates 27 (1986), S. 517-519 
    Details
    ISSN: 0032-8332
    Schlagwort(e): Pan troglodytes schweinfurthii ; Chimpanzee ; Female ; Estrus ; Lactational amenorrhea
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract A case of unusually early postpartum resumption of estrous cycling (〈7 months) was recorded for a young, presumably primiparous female in the M group of chimpanzees (Pan troglodytes schweinfurthii) in the Mahale Mountains National Park, western Tanzania. The female showed estrous cycling while lactating her infant, and mated with young and low-ranking males as well as with the alpha male.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02381896
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  • 16
    Digitale Medien
    Digitale Medien
    Culture and the environment in the United States (1985)
    Springer
    Environmental management 9 (1985), S. 161-172 
    Details
    ISSN: 1432-1009
    Schlagwort(e): Environment ; Beliefs ; Values ; Paradigms ; Culture ; Attitudes ; Social change ; Political change ; United States
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract The beliefs of Americans about the proper relationship between humans and their environment were profoundly affected by waves of immigration from Europe. Immigrants valued ownership of land, individuality, freedom, domination of nature, and technological development. These themes remain strong today as centerpieces of the American dominant social paradigm (DSP). That DSP has been reexamined and found wanting by an increasing proportion of Americans. This departure from the old DSP has progressed further among the public than among the elite who have a greater stake in preserving the status quo. Environmentalists constitute a vanguard trying to lead the people to a new, more environmentally oriented social paradigm. The beliefs of the old DSP and the new environmental paradigm (NEP) are contrasted in Table 2. Briefly, the NEP advocates stress love of nature rather than domination of it; compassion for other peoples, future generations, and other species; planning to avoid risk; limits to growth; fundamental social change; and a new structuring of politics. These two worldviews are likely to be in vigorous conflict for several decades in the USA. Social learning, spurred by deterioration of the old ways, is likely to lead Americans to a new perspective on their relationship to nature.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01867116
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  • 17
    Digitale Medien
    Digitale Medien
    Campoletis sonorensis [Hym.: Ichneumonidae] as a parasitoid ofSpodoptera frugiperda [Lep.: Noctuidae]: Host stage preference and functional response (1985)
    Springer
    BioControl 30 (1985), S. 31-36 
    Details
    ISSN: 1573-8248
    Schlagwort(e): parasitoid,Campoletis sonorensis ; Ichneumonidae ; Spodoptera frugiperda ; Noctuidae temperature response ; density response ; United States ; Host stage preference
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Beschreibung / Inhaltsverzeichnis: Résumé Le potentiel du parasiteCampoletis sonorensis comme agent de limitation des populations deSpodoptera frugiperda (FAW) a été évalué face à six densités d'hôtes et à deux températures distinctes. Une réponse fonctionnelle de type II a été observée aux deux températures chez la femelle deC. sonorensis en réponse aux différentes densités de la larve de Noctuelle. Aux densités de 60 et 75, un plus grand nombre de larves a été parasité à 25°C qu'à 30°C. On a découvert que le troisième stade larvaire était choisi de préférence parC. sonorensis pour pondre.
    Notizen: Abstract The response of the parasitoidCampoletis sonorensis (Cameron) as a natural control agent of the fall armyworm,Spodoptera frugiperda (J. E. Smith), was evaluated at 6 host densities and 2 temperature regime. A type-II functional response was exhibited by femaleC. sonorensis in response to varying densities of all armyworn larvae at both temperatures. Significantly more larvae were parasitized at 25°C for the host densities of 60 and 75, than for the same densities at 30°C. Third instar fall armyworm larvae were found to be the preferred stage for parasitization byC. sonorensis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02372280
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  • 18
    Digitale Medien
    Digitale Medien
    New records for two mosquito predators [Turbellaria: Mesostoma] in the northeastern United States (1985)
    Springer
    BioControl 30 (1985), S. 83-85 
    Details
    ISSN: 1573-8248
    Schlagwort(e): Mosquitoes ; Culicidae ; Flatworms ; Mesostoma spp. ; predation ; United States
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Beschreibung / Inhaltsverzeichnis: Résumé Les observations accumulées indiquent que les larves des Plathelminthes mesostomides sont des prédateurs efficaces des larves de moustiques. Cette note présente les premières mentions de 3Mesostoma Ehrenberg incluant 2 prédateurs de moustiques.Mesostoma californicum Hyman,Mesostoma vernale Hyman, etMesostoma sp. cf.lingua Abildgaard furent découverts dans une mare temporaire du Massachusetts.M. californicum etM. sp. cf.lingua ont été reconnus comme des prédateurs efficaces des larves de moustiques.
    Notizen: Abstract The accumulated data indicate that mesostomid flatworms are efficient predators of mosquito larvae. This paper presents the 1st published records for 3Mesostoma Ehrenberg, including 2 predators of mosquitoes.Mesostoma californicum Hyman,Mesostoma vernale Hyman, andMesostoma sp. cf.lingua Abildgaard were discovered in a temporary pool in Massachusetts.M. californicum andM. sp. cf.lingua were found to be efficient predators on mosquitoe larvae.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02372287
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