caa a22 4500 467947171 CHVBK 20180405193738.0 cr unu---uuuuu 170328e20041001xx s 000 0 eng 10.1007/s10641-003-0092-5 doi (NATIONALLICENCE)springer-10.1007/s10641-003-0092-5 (NATIONALLICENCE)springer-10.1007/s10641-004-0092-5 Is sexual segregation in the guppy, Poecilia reticulata , consistentwith the predation risk hypothesis? [Elektronische Daten] [Darren Croft, Marc Krause] Synopsis: We examined the importance of sex differences in predation risk in generating sexual segregation in the guppy, Poecilia reticulata. We hypothesised that sex differences in predation risk will result in habitat segregation and ultimately social segregation of the sexes, with the more vulnerable sex (males in this case) using safer habitats. In accordance with the predation risk hypothesis we observed sexual segregation in a population associated with high but not low predation risk. Under high predation risk we observed a larger proportion of males in shallow marginal habitats resulting in habitat segregation and ultimately social segregation of the sexes. Furthermore, habitat segregation by sex was associated with habitat segregation by body length with shoals in deeper water having a larger mean body length. Shoaling fish species have been key models in investigating group living, and further research directed towards understanding sexual segregation in other fish species would be valuable. Kluwer Academic Publishers, 2004 ungulates nationallicence group living nationallicence social association nationallicence habitat preferences nationallicence Croft Darren School of Biology, University of Leeds, LS2 9JT, Leeds, U.K aut Krause Marc School of Biology, University of Leeds, LS2 9JT, Leeds, U.K aut Environmental Biology of Fishes Kluwer Academic Publishers 71/2(2004-10-01), 127-133 0378-1909 71:2<127 2004 71 10641 https://doi.org/10.1007/s10641-003-0092-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-003-0092-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Croft Darren School of Biology, University of Leeds, LS2 9JT, Leeds, U.K aut NATIONALLICENCE 700 1- Krause Marc School of Biology, University of Leeds, LS2 9JT, Leeds, U.K aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Kluwer Academic Publishers 71/2(2004-10-01), 127-133 0378-1909 71:2<127 2004 71 10641 NATIONALLICENCE 700 1- Croft Darren School of Biology, University of Leeds, LS2 9JT, U.K aut NATIONALLICENCE 700 1- Krause Marc School of Biology, University of Leeds, LS2 9JT, U.K aut NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-004-0092-5 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer