ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Maintaining a behaviour polymorphism by frequency-dependent selection on a single gene (2007)
    [s.l.] : Nature Publishing Group
    Nature 447 (2007), S. 210-212 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Accounting for the abundance of genetic variation in the face of natural selection remains a central problem of evolutionary biology. Genetic polymorphisms are constantly arising through mutation, and although most are promptly eliminated, polymorphisms in functionally important traits are ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05764
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Neurobiology Social eating for stress (2002)
    [s.l.] : Nature Publishing Group
    Nature 419 (2002), S. 893-894 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Behavioural ecologists have shown that many animals form social groups in response to stressful environmental conditions. Neurobiological evidence for this behaviour has now been discovered in the nematode worm, Caenorhabditis elegans. On pages 899 and 925 of this issue, de Bono et ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/419893a
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Development time and pupation behavior in theDrosophila melanogaster subgroup (Diptera: Drosophilidae) (1994)
    Springer
    Journal of insect behavior 7 (1994), S. 263-277 
    Details
    ISSN: 1572-8889
    Keywords: Drosophila melanogaster subgroup ; development time ; pupation behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This study is an in-depth analysis of intersexual, intraspecific, and interspecific variability in larvopupal developmental time, pupation site preference, and larval and pupal survival of a number of isofemale lines of the speciesDrosophila mauritiana, D. melanogaster, D. sechellia, D. simulans, D. teissieri, andD. yakuba. There was no significant sex differences in pupation height, but females eclosed significantly earlier than males in all species. In addition, the suggestion of a strong negative correlation between larval developmental time and pupation height could not be confirmed in this study. The hypothesis that differences in pupation height provide a basis for niche partitioning between closely related species with overlapping distributions was tested by three planned orthogonal contrast analyses of variance. First, the two speciesD. teissieri andD. yakuba, with largely overlapping distribution, were significantly different in pupation height. Second, the two allopatric, nonoverlapping island speciesD. mauritiana andD. sechellia did not significantly differ in pupation height. However, the absence of a significant difference in the final contrast between the two cosmopolitan speciesD. melanogaster andD. simulans, which are often found together, makes us cautious to accept the hypothesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989734
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Natural selection in the laboratory for a change in resistance byDrosophila melanogaster to the parasitoid waspAsobara tabida (1996)
    Springer
    Journal of insect behavior 9 (1996), S. 477-491 
    Details
    ISSN: 1572-8889
    Keywords: Drosophila ; behavior ; polymorphism ; parasitoid wasp ; host defense
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The selection response of the polymorphic hostD. melanogaster (Meigen) to the braconid waspA. tabida (Nees) is addressed. Cages of flies with and without wasps were initiated with a population ofD. melanogaster that exhibited variation both in larval foraging behavior and in encapsulation ability. Encapsulation ability was measured as the proportion of parasitized larvae that produce a hardened capsule which encapsulates the wasp egg and ultimately kills the wasp larva. We determined whether the host population changed its encapsulation ability and/or its foraging behavior in response to the wasp. Both species were collected from a local orchard whereA. tabida is the only wasp known to parasitizeD. melanogaster larvae. The naturally occurring genetic polymorphism for rover and sitter larval foraging behavior inD. melanogaster is also found in this field population.A. tabida's vibrotactic search behavior enables it to detect rover more frequently than sitter larvae. Rover larvae move significantly more while feeding than do sitter larvae. In this field population, rover larvae also show higher encapsulation abilities than do sitter larvae. Six cage populations, three without wasps and three with wasps, each containing an equal mixture of rover and sitter flies, were established in the laboratory and maintained for 19 fly generations. Selection pressure in the laboratory was similar to that found in the field population from which the flies and wasps were derived. We found that larvae from cages with wasps developed a significantly higher frequency of encapsulation than those reared without wasps. We were, however, unable to detect a change in larval movement (rover or sitter behavior) in larvae from cages subject to selection from wasps compared to larvae from cages containing no wasps. This may have resulted from a balance between two selective forces, selection against rovers by the wasps' use of vibrotaxis, and selection for rovers resulting from their increased encapsulation abilities
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02214024
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Microgeographic variation in aDrosophila melanogaster larval behavior (1989)
    Springer
    Journal of insect behavior 2 (1989), S. 829-834 
    Details
    ISSN: 1572-8889
    Keywords: Drosophila melanogaster ; larval behavior ; microhabitat ; heritability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01049403
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Sensorimotor transformation from light reception to phototactic behavior inDrosophila larvae (Diptera: Drosophilidae) (1994)
    Springer
    Journal of insect behavior 7 (1994), S. 553-567 
    Details
    ISSN: 1572-8889
    Keywords: review ; Drosophila ; larva ; phototaxis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In this paper we examine theDrosophila melanogaster larval response to light. We survey the morphology of the larval visual and motor systems in relation to larval locomotory behavior and phototaxis. In addition, this paper proposes a model of sensorimotor transformation and examines the reversal in taxis occurring at theD. melanogaster larval wnadering stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02025449
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Parasitization of embedded and nonembeddedDrosophila melanogaster (Diptera: Drosophilidae) pupae by the parasitoidPachycrepoideus vindemniae (Hymenoptera: Pteromalidae) (1994)
    Springer
    Journal of insect behavior 7 (1994), S. 129-131 
    Details
    ISSN: 1572-8889
    Keywords: Drosophila ; parasitoid wasp ; behavior ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989833
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    A lack of locomotor activity rhythms inDrosophila melanogaster larvae (Diptera: Drosophilidae) (1994)
    Springer
    Journal of insect behavior 7 (1994), S. 249-262 
    Details
    ISSN: 1572-8889
    Keywords: circadian rhythms ; behavior ; light-dark cycles ; temperature cycles ; period mutants
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We examined the locomotor activity ofDrosophila melanogaster for the existence of circadian rhythms, using the wild type and two mutants of theperiod (per) gene,per o andper s. This was accomplished using a newly described apparatus for the recording and measurement of larval path lengths over a 96-h test period. None of the larvae examined exhibited appreciable diel rhythms under cycling conditions of light or temperature. Larvae were also not rhythmic under free-running conditions. Our results suggest that theper gene does not influence an observable locomotor behavioral phenotype in the larval stage of development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989733
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Foraging strategies ofDrosophila melanogaster: A chromosomal analysis (1980)
    Springer
    Behavior genetics 10 (1980), S. 291-302 
    Details
    ISSN: 1573-3297
    Keywords: foraging strategies ; chromosomal analysis ; Drosophila melanogaster ; larvae ; feeding-locomotor behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Two larval foraging strategies inDrosophila melanogaster were identified, “rover” and “sitter.” “Rovers” traverse a large area while feeding whereas “sitters” cover a small area. The difference between “rovers” and “sitters” was analyzed genetically by chromosomal substitutions between isogenic stocks. Differences in larval locomotor behavior (“crawling behavior”) can be attributed to the second chromosome, the “rover” strategy being dominant over the “sitter” strategy. Differences in feeding rate (“shoveling behavior”) are affected additively by both the second and third chromosomes. Natural populations ofDrosophila larvae were sampled three times over a 2-month period; “rovers” and “sitters” were at constant frequencies in these populations. The two foraging strategies are discussed in the light of resource utilization in environments where food is distributed continuously or discontinuously.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01067774
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Prepupation behavior inDrosophila: Embedding (1985)
    Springer
    Behavior genetics 15 (1985), S. 155-164 
    Details
    ISSN: 1573-3297
    Keywords: prepupation behavior ; Drosophila melanogaster ; embedding ; chromosomal analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract A newD. Melanogaster prepupation behavior, “embedding,” is described. Prior to pupation, some larvae burrow through the agar and pupate at the end of the burrowed tunnel with the posterior end of their body embedded in the agar. Embedding behavior is studied in laboratory-and field-derived stocks under two light regimes and in two test dishes. The chromosomal constitution of the strains (in particular the third pair of autosomes) significantly affected differences in embedding behavior. Differences in embedding behavior were also affected by light regime but not by test dish.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01065896
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...