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Juvenile immune system activation induces a costly upregulation of adult immunity in field crickets Gryllus campestris
Inducible immune defence may allow organisms a state-dependent upregulation of costly immunity in order to minimize the risk of anticipated future parasitism. The basic costs of elevated immuneExpand
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Condition dependence of a multicomponent sexual signal in the field cricket Gryllus campestris
In choosing a breeding partner, females in many animal species select between available males on the basis of several signalling traits. Some theoretical models of signalling evolution predict thatExpand
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The effect of past condition on a multicomponent sexual signal†
Sexual-selection theory predicts that multiple signals may reveal male condition at different stages of life, thus allowing females to make a more reliable assessment of male quality. While theExpand
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COSTS OF AN INDUCED IMMUNE RESPONSE ON SEXUAL DISPLAY AND LONGEVITY IN FIELD CRICKETS
Abstract Immune system activation may benefit hosts by generating resistance to parasites. However, natural resources are usually limited, causing a trade-off between the investment in immunity andExpand
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COSTS OF AN INDUCED IMMUNE RESPONSE ON SEXUAL DISPLAY AND LONGEVITY IN FIELD CRICKETS
Abstract Immune system activation may benefit hosts by generating resistance to parasites. However, natural resources are usually limited, causing a trade‐off between the investment in immunity andExpand
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Female preference for multiple condition–dependent components of a sexually selected signal
Theoretical models explain the evolution of multi–cue mate–choice decisions from a trade–off between benefits owing to improved assessment of potential mates and costs linked to the use of multipleExpand
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Parasite-induced maternal response in a natural bird population
Summary 1 The timing and mechanism of the maternal response to ectoparasites is investigated in a host–parasite system consisting of great tits and a haematophageous ectoparasite, the hen flea.Expand
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Condition-dependent signaling affects male sexual attractiveness in field crickets, Gryllus campestris
The condition dependence of sexually selected traits is an important assumption of sexual selection theory. Several laboratory studies have documented a positive relationship between foodExpand
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Juvenile immune status affects the expression of a sexually selected trait in field crickets
Parasite‐mediated sexual selection theory presumes that variation in sexual traits reliably reflects variation in parasite resistance among available mates. One mechanism that may warrant signalExpand
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Dissecting Carotenoid from Structural Components of Carotenoid‐Based Coloration: A Field Experiment with Great Tits (Parus major)
Carotenoid‐based yellowish to red plumage colors are widespread visual signals used in sexual and social communication. To understand their ultimate signaling functions, it is important to identifyExpand
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