Search Results - "ROSENQVIST, G."

Sexual signals and mating patterns in Syngnathidae by Rosenqvist, G., Berglund, A.

“…Male pregnancy in the family Syngnathidae (pipefishes, seahorses and seadragons) predisposes males to limit female reproductive success; sexual selection may…”
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Male mate choice relies on major histocompatibility complex class I in a sex‐role‐reversed pipefish by Roth, O., Sundin, J., Berglund, A., Rosenqvist, G., Wegner, K. M.

“…Mate choice for compatible genes is often based on genes of the major histocompatibility complex (MHC). Although MHC‐based mate choice is commonly observed in…”
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Artificial selection on allometry: change in elevation but not slope by EGSET, C. K., HANSEN, T. F., LE ROUZIC, A., BOLSTAD, G. H., ROSENQVIST, G., PÉLABON, C.

“…To what extent within‐species (static) allometries constitute a constraint on evolution is the subject of a long‐standing debate in evolutionary biology. A…”
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Geographical variation in allometry in the guppy (Poecilia reticulata) by EGSET, C. K., BOLSTAD, G. H., ROSENQVIST, G., ENDLER, J. A., PÉLABON, C.

“…Variation in static allometry, the power relationship between character size and body size among individuals at similar developmental stages, remains poorly…”
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The operational sex ratio and density influence spatial relationships between breeding pipefish by Aronsen, T., Mobley, K.B., Berglund, A., Sundin, J., Billing, A.M., Rosenqvist, G.

“…The operational sex ratio (ratio of sexually receptive males to females) has been extensively studied in behavioral ecology, whereas other demographic factors…”
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effects of sexual selection on life‐history traits: an experimental study on guppies by Pélabon, C, Larsen, L.‐K, Bolstad, G. H, Viken, Fleming, I. A, Rosenqvist, G

“…Sexual selection is often prevented during captive breeding in order to maximize effective population size and retain genetic diversity. However, enforcing…”
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Male broad-nosed pipefish Syngnathus typhle do not locate females by smell by Lindqvist, C., Sundin, J., Berglund, A., Rosenqvist, G.

“…Broad‐nosed pipefish Syngnathus typhle were used to investigate whether males used scent in their search for mates. When the males in an experiment had access…”
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Temporal change in inbreeding depression in life‐history traits in captive populations of guppy (Poecilia reticulata): evidence for purging? by LARSEN, L.‐K., PÉLABON, C., BOLSTAD, G. H., VIKEN, Å., FLEMING, I. A., ROSENQVIST, G.

“…Inbreeding depression, which generally affects the fitness of small populations, may be diminished by purging recessive deleterious alleles when inbreeding…”
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Effects of manganese on chemically induced food search behaviour of the Norway lobster, Nephrops norvegicus (L.) by Krång, Anna-Sara, Rosenqvist, Gunilla

“…The decapod Norway lobster, Nephrops norvegicus (L.), lives on muddy sediments rich in manganese (Mn). In hypoxic conditions, manganese is reduced and released…”
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Straight-nosed pipefish Nerophis ophidion and broad-nosed pipefish Syngnathus typhle avoid eelgrass overgrown with filamentous algae by Sundin, J., Jacobsson, Ö., Berglund, A., Rosenqvist, G.

“…In a habitat choice experiment straight‐nosed pipefish Nerophis ophidion and broad‐nosed pipefish Syngnathus typhle avoided eelgrass Zostera marina covered…”
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Male and female mate choice affects offspring quality in a sex–role–reversed pipefish by Sandvik, Maria, Rosenqvist, Gunilla, Berglund, Anders

“…L. Here, a substantial male investment in offspring results in a lower potential reproductive rate in males than in females, and access to males limits female…”
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Male avoidance of parasitized females explained by direct benefits in a pipefish by ROSENQVIST, GUNILLA, JOHANSSON, KERSTIN

“…The influence of the parasitic trematode,Cryptocotylesp., on male mate choice in a species of pipefish,Syngnathus typhle, was studied. This parasite induces…”
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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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Effects of transdermal oestrogen therapy in postmenopausal women: a comparative study of an oestradiol gel and an oestradiol delivering patch by Hirvonen, E., Cacciatore, B., Wahlström, T., Rita, H., Wilén‐Rosenqvist, G.

“…Objective To compare the efficacy, safety and tolerability of an oestradiol gel (1.0 mg of oestradiol daily, Divigel®/Sandrena®) with those of an oestradiol…”
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Male Dimorphism, Sperm Traits and Immunology in the Corkwing Wrasse (Symphodus melops L.) by Uglem, Ingebrigt, Trina Falck Galloway, Rosenqvist, Gunilla, Folstad, Ivar

“…The evolution of alternative male mating phenotypes inevitably involves variation in risk or intensity of sperm competition. Males that typically mate in…”
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Presence of same sex individuals negatively affects egg maturation in female guppies (Poecilia reticulata) by Borg, Åsa A, Rosenqvist, Gunilla, Amundsen, Trond, Forsgren, Elisabet

“…Competition with individuals of the same sex may affect reproduction, and the effect may depend on own competitive ability. We exposed individual guppy…”
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Whole-Body Positron Emission Tomography: Part I. Methods and Performance Characteristics by Dahlbom, M, Hoffman, E.J, Hoh, C.K, Schiepers, C, Rosenqvist, G, Hawkins, R.A, Phelps, M.E

“…Methods for whole-body PET imaging have been developed to provide a clinical tool for the detection and evaluation of primary and metastatic cancers. The axial…”
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HRT and exercise: effects on bone density, muscle strength and lipid metabolism. A placebo controlled 2-year prospective trial on two estrogen-progestin regimens in healthy postmenopausal women by Heikkinen, Jorma, Kyllönen, Eero, Kurttila-Matero, Eeva, Wilén-Rosenqvist, Gunilla, Lankinen, Kari S., Rita, Heli, Väänänen, H.Kalervo

“…Objectives: To evaluate the effect of 1- or 3-monthly sequential combinations of estradiol valerate (E 2V) and medroxyprogesterone acetate (MPA) on menopausal…”
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Phenotypic variation between dimorphic males in corkwing wrasse by Uglem, I., Rosenqvist, G., Wasslavik, H. S.

“…The age‐frequency distributions for sneaker males (individuals with female secondary sexual characters) and territorial males (individuals with typical male…”
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Mate Choice, Fecundity and Sexual Dimorphism in Two Pipefish Species (Syngnathidae) by Berglund, A., G. Rosenqvist, I. Svensson

“…In order to understand the causes of sexual dimorphism, mate choice and size-related fecundity were studied in two pipefish species, Syngnathus typhle and…”
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