TY  - CHAP
A1  - Mahsberg, Dieter
T1  - Brood care and family cohesion in the tropical scorpion Pandinus imperator (Koch) (Scorpiones: Scorpionidae)
N2  - Pandinus imperator is a forest dweller of tropical West Africa. In the field, lobserved aggregations of up to 15 individuals. In the laboratory, mixed age groups of related and also unrelated animals lived jointly in terraria rarely showing within-group aggression or cannibalism. Brood-caring behavior of the mother influenced growth rate and survival probability of the young. With birth, mothers became very aggressive. To study family cohesion in Pandinus, experiments with family groups were conducted. Siblings aggregated around their mother. In choice experiments with two family groups, mothers were placed in enclosures that only the young were able to enter or to leave. Second instars significantly preferred the enclosure containing their own mother. Aggression among unrelated young of the same age was not observed. Feeding experiments studied the possible advantages of long-Iasting group living with regard to enhanced success in prey capture and its effect on growth of the young. Even groups of second instars were unable to subdue large prey on their own. Sibling groups with their mother removed suffered high mortality due to starvation and cannibalism compared to groups with mothers present. Here, young grew significantly faster: they shared the prey that only the mother was able to kill and dismember. Pandinus imperator has to be considered an intermediate subsocial scorpion.
KW  - Skorpion
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-45776
ER  - 
TY  - JOUR
A1  - Fiala, Brigitte
T1  - Bäume & Ameisen : Partnerschaften im südostasiatischen Regenwald
N2  - No abstract available
KW  - Baum
KW  - Ameisen
KW  - Regenwald
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-54741
ER  - 
TY  - JOUR
A1  - Merz, H.
A1  - Fliedner, A.
A1  - Lehrnbecher, T.
A1  - Sebald, Walter
A1  - Müller-Hermelink, H. K.
A1  - Feller, A. C.
T1  - Cytokine expression in B-cell non-Hodgkin lymphomas
N2  - No abstract available
KW  - Biochemie
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-62539
ER  - 
TY  - CHAP
A1  - Fiala, Brigitte
T1  - Die Ameisenpflanzen der Gattung Macaranga (Euphorbiaceae) - verschiedene Stufen der Pflanzen-Ameisen-Beziehungen
N2  - No abstract available
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42914
ER  - 
TY  - JOUR
A1  - Hovestadt, Thomas
T1  - Die Bedeutung zufälligen Aussterbens für die Naturschutzplanung
N2  - No abstract available
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-30136
ER  - 
TY  - JOUR
A1  - Fiala, Brigitte
T1  - Extrafloral nectaries versus ant-Homoptera mutualisms : a comment on Becerra and Venable
N2  - No abstract available
KW  - Nektarium
KW  - Ameise
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-32948
ER  - 
TY  - JOUR
A1  - Scheer, Ulrich
A1  - Benavente, Ricardo
T1  - Functional and dynamic aspects of the mammalian nucleolus
N2  - Nucleoli are the sites of ribosome biogenesis. Transcription of the ribosomal RNA genes as well as processing and initial packaging of their transcripts with ribosomal and non-ribosomal proteins all occur within the nucleolus in an ordered manner and under defined topological conditions. Components of the nucleolus have been localized by immunocytochemistry and their functional aspects investigated by microinjection of antibodies directed against the enzyme responsible for rDNA transcription, RNA polymerase I. The role of nascent transcripts in postmitotic formation of nucleoli will be discussed.
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-34269
ER  - 
TY  - JOUR
A1  - Schartl, Angelika
A1  - Schartl, Manfred
T1  - Genes and cancer: Molecular biology of the melanoma oncogene of Xiphophorus
N2  - No abstract available.
KW  - Schwertkärpfling
KW  - Krebs <Medizin>
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-72670
ER  - 
TY  - JOUR
A1  - Schartl, Manfred
A1  - Nanda, Indrajit
A1  - Schlupp, Ingo
A1  - Parzefall, Jakob
A1  - Schmid, Michael
A1  - Epplen, Jörg T.
T1  - Genetic variation in the clonal vertebrate Poecilia formosa is limited to few truly hypervariable loci
N2  - No abstract available.
KW  - Amazon Molly
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-86359
ER  - 
TY  - JOUR
A1  - Dandekar, Thomas
T1  - Hefezellen - ein gutes Modell für höhere Zellen
N2  - No abstract available
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-29726
ER  -