several factors usually affect the fitness consequences of social decisions. We scrutinize the effects of group size and familiarity/relatedness on shoaling decisions in the LakeTanganyikacichlid Lamprologus callipterus . Besides anecdotal remarks (Brichard, 1989; Konings, 1998), little is known about
2005) Summary In cooperative breeders, between-group dispersal of helpers is expected to occur if it increases their fitness. Genetic data suggest that helpers in the cooperatively breeding LakeTanganyikacichlid Neolamprologus pulcher occasionally migrate into nearby groups where they again become
and familiarise themselves with multiple neighbours at the same time, but TIR is rarely evidenced.
The purpose of the present study was to provide evidence for the presence of TIR in territorial fish that exhibit the dear enemy relationship. Neolamprologus pulcher is a LakeTanganyikacichlid with
species (Aiello & Wheeler, 1995; Navarrete et al., 2011; Tsuboi et al., 2015; Liao et al., 2016a). Consistent with the ETH and the “energy trade-off hypothesis”, relative brain size exhibits a negative correlation with gut size in LakeTanganyikacichlids, anurans and primates (Aiello & Wheeler, 1995
and mitochondrial data reveal different evolutionary processes in the LakeTanganyikacichlid genus Tropheus
BMC Evol. Biol.
, 7 , 137 .
Ezard , T.
Fujisawa , T.
Barraclough , T.G.
( 2009 ) Splits: SPecies’ Limits by Threshold Statistics R package
performance in male convict cichlid fish . —
271 - 280 .
( 2007 ).
Phylogenetic relationships of the LakeTanganyikacichlid tribe Lamprologini: the story from mitochondrial DNA . —
Mol. Phylogenet. Evol.
629 - 642
investment. Such a process may explain why new males on a lek of the LakeTanganyikacichlid Cyathopharynx furcifer deserted their bowers within four days (Karino, 1996). Variation in the duration that males have held bowers may also help to explain why male standard length and colour, two common measures of
., Postl, L., Sinyinza, D. & Sefc, K.M. (2008). Variation of territory size and defense behavior in breeding pairs of the endemic LakeTanganyikacichlid Variabilichromis moorii . — Hydrobiologia 615: 49-56. Temeles, E. (1994). The role of neighbours in territorial systems: when are they ‘dear ene- mies
specialists co-exist with generalists. As an example, let us examine the new ecological model as it relates to three LakeTanganyikacichlids: the generalist Lobochilotes labiatus, the
252 stenotopic (HORI, 1991) Perissodus paradoxus, and the eurytopic spe- cialist Petrochromis polyodon (fig. 3). The