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Predation risk as a cost of reproduction.
  • C. Magnhagen
  • Biology, Medicine
  • Trends in ecology & evolution
  • 1 June 1991
Predation risk as a cost of reproduction in animals has recently received increased empirical and theoretical attention. Higher risk may be associated with all stages of reproduction. Examples ofExpand
Effects of sex ratio on intra- and inter-sexual behaviour in sand gobies
Reproductive behaviour and reproductive success in a marine fish, the sand goby, Pomatoschistus minutus, were affected by changes in the sex ratio. When the sex ratio was male biased (six males:Expand
Express your personality or go along with the group: what determines the behaviour of shoaling perch?
Behavioural syndromes, defined as correlated behaviours in different contexts, have been studied across species and taxa including humans as part of a personality concept. While most studies haveExpand
Few studies have examined multiple life-history traits across a latitudinal gradient to test whether variation in growth rate and mortality schedules induces trends predicted by life-history theory.Expand
Plastic sex-roles in the common goby – the effect of nest availability
One of the most important factors shaping animal sex-roles is the operational sex ratio, since a skew of this ratio promotes mating competition in the more abundant sex. In this study, we wanted toExpand
Genetic Differentiation Among Stationary and Anadromous Perch (Perca Fluviatilis) in the Baltic Sea
Perch (Peru fluviatilis L.) in the Baltic sea region display three major reproductive behavioural patterns; perch that live in the brackish environment but migrate to freshwater in the spring inExpand
Is boldness affected by group composition in young-of-the-year perch (Perca fluviatilis)?
In young-of-the-year perch (Perca fluviatilis), individuals within groups differed in the degree of boldness, estimated by habitat utilisation and feeding activity in visual contact with a potentialExpand
Effects of tank colour and light intensity on feed intake, growth rate and energy expenditure of juvenile Eurasian perch, Perca fluviatilis L.
Eurasian perch (Perca fluviatilis) is receiving increasing attention as a new species in freshwater aquaculture. Understanding perch behaviour and performance in culture is important to optimize theExpand
Gape size allometry in pike reflects variation between lakes in prey availability and relative body depth
Summary 1The gape size of the predator and the body depth of its prey are the main factors deciding whether a gape-limited piscivore can ingest a potential prey fish. The connection betweenExpand