Search Results - "Kvarnemo, C."

Evidence of paternal nutrient provisioning to embryos in broad-nosed pipefish Syngnathus typhle by Kvarnemo, C., Mobley, K. B., Partridge, C., Jones, A. G., Ahnesjö, I.

“…In two experiments, radioactively labelled nutrients (either 3H‐labelled amino‐acid mixture or 14C‐labelled glucose) were tube‐fed to brooding male Syngnathus…”
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The relationship between female body size and egg size in pipefishes by Braga Goncalves, I., Ahnesjö, I., Kvarnemo, C.

“…Comparing five species of pipefish, egg size was significantly larger in species with brood pouches (Syngnathus typhle, Syngnathus acus and Syngnathus…”
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The importance of sperm competition risk and nest appearance for male behavior and female choice in the sand goby, Pomatoschistus minutus by Svensson, Ola, Kvarnemo, Charlotta

“…To test if an increased sperm competition risk affects male behavior and mating decisions of both sexes, we performed two experiments using the sand goby,…”
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Investment in testes, sperm-duct glands and lipid reserves differs between male morphs but not between early and late breeding season in Pomatoschistus minutus by Kvarnemo, C., Svensson, O., Manson, W.

“…This study of the sand goby Pomatoschistus minutus, a nest‐holding fish with paternal care, focused on gonadal investment among males of different sizes…”
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Sexually selected nest‐building –Pomatoschistus minutus males build smaller nest‐openings in the presence of sneaker males by Svensson, O., Kvarnemo, C.

“…Both natural selection and sexual selection may act on nest‐building. We tested experimentally how different regimes of egg‐predation and male–male competition…”
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Parasitic spawning in sand gobies: an experimental assessment of nest-opening size, sneaker male cues, paternity, and filial cannibalism by Svensson, Ola, Kvarnemo, Charlotta

“…Sneaking is common in nest-building fish with paternal care, but the role of nest-opening size in protecting against entry by sneaker males has never been…”
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Genetic mating patterns studied in pools with manipulated nest site availability in two populations of Pomatoschistus minutus by SINGER, A., KVARNEMO, C., LINDSTRÖM, K., SVENSSON, O.

“…Pomatoschistus minutus show paternal care in a resource defence mating system. We investigated the effect of nest‐site availability on parasitic spawning. Each…”
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Effects of a low oxygen environment on parental effort and filial cannibalism in the male sand goby, Pomatoschistus minutus by Lissåker, Maria, Kvarnemo, Charlotta, Svensson, Ola

“…In fish, brood cycling parental males sometimes eat some or all of their eggs, a behavior termed filial cannibalism. We tested predictions of filial…”
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The influence of territoriality and mating system on the evolution of male care: a phylogenetic study on fish by Ah‐King, M., Kvarnemo, C., Tullberg, B. S.

“…Evolution of male care is still poorly understood. Using phylogenetically matched‐pairs comparisons we tested for effects of territoriality and mating system…”
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Sand goby males trade off between defence against egg predators and sneak intrusions by Järvi-Laturi, M, Lindström, K, Kvarnemo, C, Svensson, O

“…According to life-history theory, a care-taking parent should balance investment in current and future reproduction in such a way that it maximizes lifetime…”
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Parental behaviour in relation to food availability in the common goby by KVARNEMO, CHARLOTTA, SVENSSON, OLA, FORSGREN, ELISABET

“…In the common goby,Pomatoschistus microps(Pisces, Gobiidae), males build nests under mussel shells where they care for the eggs until hatching. To investigate…”
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Temperature Differentially Affects Male and Female Reproductive Rates in the Sand Goby: Consequences for Operational Sex Ratio by Kvarnemo, Charlotta

“…The influence of temperature on the relative reproductive rates of male and female sand gobies (Pomatoschistus minutus) was measured in aquarium experiments,…”
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Monogamous pair bonds and mate switching in the Western Australian seahorse Hippocampus subelongatus by Kvarnemo, C., Moore, G. I., Jones, A. G., Nelson, W. S., Avise, J. C.

“…Apparently monogamous animals often prove, upon genetic inspection, to mate polygamously. Seahorse males provide care in a brood pouch. An earlier genetic…”
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Costly courtship or dishonest display? Intensely displaying sand goby males have lower lipid content by Svensson, O., Nyman, A., Kvarnemo, C.

“…Intensely displaying sand goby Pomatoschistus minutus males had lower lipid content, indicating that signalling increased energy expenditure, or that low…”
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The capacity for additional matings does not affect male mating competition in the sand goby by Nyman, Andreas, Kvarnemo, Charlotta, Svensson, Ola

“…Models of sexual selection predict that mating competition within a population will increase with a biased operational sex ratio (OSR). However, these models…”
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The Influence of Potential Reproductive Rate and Variation in Mate Quality on Male and Female Choosiness in the Sand Goby, Pomatoschistus minutus by Kvarnemo, Charlotta, Forsgren, Elisabet

“…Recent models of choosiness in mate choice have identified two particularly important factors: the potential reproductive rate (PRR) of the choosing sex…”
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Ejaculate expenditure by male bushcrickets decreases with sperm competition intensity by Simmons, L.W, Kvarnemo, C

“…Male bushcrickets transfer a spermatophore at mating that consists of a sperm-containing ampulla and a sperm-free mass, the spermatophylax, that is consumed by…”
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Why is there no sperm competition in a pipefish with externally brooding males? Insights from sperm activation and morphology by Ah-King, M., Elofsson, H., Kvarnemo, C., Rosenqvist, G., Berglund, A.

“…Nerophis ophidion sperm activation and morphology were investigated with the aim of explaining the apparent lack of sperm competition in this syngnathid with…”
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Parental behaviour in relation to the occurrence of sneaking in the common goby by SVENSSON, OLA, MAGNHAGEN, CARIN, FORSGREN, ELISABET, KVARNEMO, CHARLOTTA

“…To investigate whether male common gobies,Pomatoschistus microps(Pisces, Gobiidae), treat their offspring differently depending on confidence of paternity, we…”
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Evolution and maintenance of male care: is increased paternity a neglected benefit of care? by Kvarnemo, Charlotta

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