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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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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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The effect of age on a sexually selected acoustic display
Models of sexual selection suggest that females should prefer to mate with older males because old age is evidence of heritable high viability. In a longitudinal analysis, we demonstrate that maleExpand
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Acrosin in the spermiohistogenesis of mammals.
Using the indirect immunofluorescence staining technique, the developmental pattern of acrosin during spermatogenesis of boar, ram, rabbit, mouse, rat, and Russian hamster (Phodopus sungorus) wasExpand
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Diel variation in a dynamic sexual display and its association with female mate-searching behaviour
Dynamic sexual signals often show a diel rhythm and may vary substantially with time of day. Diel and short-term fluctuations in such sexual signals pose a puzzle for condition capture models of mateExpand
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