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  • 1
    Electronic Resource
    Electronic Resource
    Ueber die Funktionelle Monogynie der AmeiseMyrmecina Graminicola (Latr.) (1970)
    Springer
    Insectes sociaux 17 (1970), S. 219-221 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Obwohl eine funktionelle Monogynie bei Ameisen, der grossen ethologischen Plastizität dieser Tiere wegen, nur sehr schwer nachweisbar ist, enthalten die Beobachtungen vonBaroni-Urbani (1968) anMyrmecina graminicola bemerkenswerte Hinweise auf 3 der fünf vonPardi bei Wespen festgestellten klassischen Merkmale dieses Verhaltens. Trotz zahlreichen Literaturangaben bleibt das Problem der funktionellen Monogynie bei Ameisen immer noch recht unabgeklärt. In einer Arbeit vonBuschinger (1967), worin der Verfasser über ein weiteres Merkmal funktioneller Monogynie beiLeptothotax gredleri berichtet, findet es eine zusätzliche Bestätigung.
    Notes: Summary Functional monogyny is very difficult to demonstrate in ants because of the great behavioural plasticity of these animals.Baroni-Urbani (1968) observed inMyrmecina graminicola 3 of the five features which are characteristic of this behaviour according to the Pardi's classical works on wasps. In spite of the abundant literature data, these represent the most complete documentation in ants. However, they are supported also by a work ofBuschiner (1967) who found another character of functional monogyny inLeptothorax gredleri.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02226195
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  • 2
    Electronic Resource
    Electronic Resource
    Osservazioni diverse intorno al nomadismo dell'Aphænogaster picena Baroni con particolare riguardo all'orientamento (Hymenoptera, Formicidæ) (1966)
    Springer
    Insectes sociaux 13 (1966), S. 69-86 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary The A. describes the nomadic behaviour of theAphænogaster picena Baroni. This trait has not yet been described for any other related species, and although there are other well known nomadic species it is difficult to considerA. picena togheter with them, due to the marked differences in their nomadic habits. The nomadism of this species is manifested as irregular and infrequent changes of nest without raiding or foraging in columns. The author presents possible explanations for this behaviour. He has also been able to show that these ants (queen and workers) orient themselves photomenotactically. Several experiments on two species of myrmecophiles taken from a track to which the ants had recently migrated are described. These experiments show that both species (Myrmecophilus myrmecophilus Savi, provided with eyes, andAtelura formicaria Heyd., completely blind), can orient themselves menotactically taking a constant angle with the sun.
    Notes: Résumé L'auteur décrit les mœurs nomades de l'Aphænogaster picena Baroni. Un comportement semblable n'avait encore été signalé pour aucune espèce de ce groupe, et la comparaison même avec d'autres espèces nomades mieux connues est assez difficile à cause des nombreuses différences éthologiques. Le nomadisme de cette espèce est simplement limité à de rares changements de nid sans ravitaillement et butinage en colonne. On émet des hypothèses sur quelques-unes des causes immédiates de ce comportement et on peut établir que la photoménotaxie joue un rôle dans l'orientation de ces fourmis (ouvrières et reine) pendant la migration. L'auteur décrit ensuite quelques expériences faites avec deux espèces de myrmécophiles prises sur une piste presque abandonnée par les fourmis. De ces expériences, on peut conclure que tant leMyrmecophilus myrmecophilus Savi, qui est pourvu d'yeux, que l'Atelura formicaria Heyd., complètement aveugle, peuvent s'orienter ménotactiquement en parcourant une piste faisant un angle à peu près constant avec le soleil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223563
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  • 3
    Electronic Resource
    Electronic Resource
    Domination et monogynie fonctionnelle dans une société digynique demyrmecina graminicola Latr (1968)
    Springer
    Insectes sociaux 15 (1968), S. 407-411 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Riassunto L'autore, mediante osservazioni regolari in una colonia diginica sperimentale diMyrmecina graminicola, dimostra la presenza di un rapporto di dominazione trale due femmine. Il comportamento aggressivo della femmina α nei confronti della β è determinato dalla presenza delle larve e delle operaie, ma quest'ultime non partecipano minimamente alla scelta od all'eliminazione della regina soprannumeraria come era stato osservato in altre specie.
    Abstract: Summary Regular observation of a digynic experimental colony ofMyrmecina graminicola showed the existence of a dominance order between the two females. The aggressive behaviour of female α towards female β depends on the presence of larvae and workers, but the latter do not take any part in the choice or elimination of the supernumerary queen as has already been observed for other species.
    Notes: Résumé L'auteur, au moyen d'observations régulières dans une colonie digynique expérimentale deMyrmecina graminicola, prouve la présence d'un rapport de domination entre les deux femelles. L'agressivité de la femelle α contre la β est déterminée par la présence des larves et des ouvrières, mais les ouvrières ne participent nullement au choix ou à l'élimination de la reine surnuméraire, contrairement à ce qui avait été observé pour d'autres espèces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223637
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  • 4
    Electronic Resource
    Electronic Resource
    Über die eigenartige morphologie der männlichen genitalien des genus Diplorhoptrum Mayr (Hymenoptera Formicidae) und die taxonomischen schlußfolgerungen (1968)
    Springer
    Zoomorphology 63 (1968), S. 63-74 
    Details
    ISSN: 1432-234X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The conformation of the laminae volsellares of the european populations of Solenopsis seems to be unique among Formicidae. On the basis of this character they are separated from the genus Solenopsis s. str. (neotropical) to form another genus bearing the name Diplorhoptrum Mayr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343427
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  • 5
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    Unknown
    Ant Communities of the High-Altitude Appennine Grasslands (1969)
    Wiley
    Details
    Publication Date: 1969-05-01
    Print ISSN: 0012-9658
    Electronic ISSN: 1939-9170
    Topics: Biology
    Published by Wiley on behalf of Ecological Society of America.
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