TY  - CHAP
A1  - Schartl, Manfred
A1  - Erbelding-Denk, C.
A1  - Hölter, S.
A1  - Nanda, I.
A1  - Schmid, M.
A1  - Schröder, J. H.
A1  - Epplen, J. T.
T1  - High mating success of low rank males in Limia perugiae (Pisces: Poeciliidae) as determined by DNA-fingerprinting
N2  - Hierarchical structures among male individuals in a population are frequently reflected in differences in aggressive and reproductive behaviour and access to the females. In general social dominance requires large investments which in turn may have to be compensated for by high reproductive success. However, this hypothesis has so far only been sufficiently tested in small mating groups due to the difficulties of determining paternity by classical methods using non-molecular markers. DNA fingerprinting overcomes these problems offering the possibility to determine genetic relationships and mating patterns within larger groups. Using this approach we have recently shown (Schartl et al., 1993) that in the poeciliid fish Limia perugiae in small mating groups the dominant male has 100% mating success, while in larger groups its contribution to the offspring unexpectedly drops to zero. The reproductive failure under such social conditions is explained by the inability of the ex-male to protect all the females simultaneously against mating attempts of his numerous subordinate competitors.
KW  - DNS
KW  - Fingerprint-Verfahren
KW  - Lebendgebärende Zahnkarpfen
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-87132
ER  - 
TY  - JOUR
A1  - Schartl, Manfred
A1  - Erbelding-Denk, Claudia
A1  - Nanda, Indrajit
A1  - Schmid, Michael
A1  - Schröder, Johannes Horst
A1  - Epplen, Jörg T.
T1  - Mating success of subordinate males in a poeciliid fish species, Limia perugiae
N2  - No abstract available.
KW  - Lebendgebärende Zahnkarpfen
KW  - Perugia-Kärpfling
Y1  - 1991
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-86349
ER  - 
TY  - JOUR
A1  - Schartl, A.
A1  - Schartl, Manfred
A1  - Anders, F.
T1  - Promotion and regression of neoplasia by testosterone-promoted cell differentiation in Xiphophorus and Girardinus
N2  - No abstract available.
KW  - Schwertkärpfling
KW  - Lebendgebärende Zahnkarpfen
Y1  - 1982
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-86684
ER  -