Search Results - "Engqvist, Leif"

The evolution of genetic and conditional alternative reproductive tactics by Engqvist, Leif, Taborsky, Michael

“…Frequency-dependent selection may drive adaptive diversification within species. It is yet unclear why the occurrence of alternative reproductive tactics…”
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Meta‐analysis of variation: ecological and evolutionary applications and beyond by Nakagawa, Shinichi, Poulin, Robert, Mengersen, Kerrie, Reinhold, Klaus, Engqvist, Leif, Lagisz, Malgorzata, Senior, Alistair M., O'Hara, Robert B.

“…Summary Meta‐analysis has become a standard way of summarizing empirical studies in many fields, including ecology and evolution. In ecology and evolution,…”
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A Paradox of Genetic Variance in Epigamic Traits: Beyond “Good Genes” View of Sexual Selection by Radwan, Jacek, Engqvist, Leif, Reinhold, Klaus

“…Maintenance of genetic variance in secondary sexual traits, including bizarre ornaments and elaborated courtship displays, is a central problem of sexual…”
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Emerging issues in the evolution of animal nuptial gifts by Lewis, Sara M., Vahed, Karim, Koene, Joris M., Engqvist, Leif, Bussière, Luc F., Perry, Jennifer C., Gwynne, Darryl, Lehmann, Gerlind U. C.

“…Uniquely positioned at the intersection of sexual selection, nutritional ecology and life-history theory, nuptial gifts are widespread and diverse. Despite…”
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Sperm competition games: optimal sperm allocation in response to the size of competing ejaculates by Engqvist, Leif, Reinhold, Klaus

“…Sperm competition theory predicts that when males are certain of sperm competition, they should decrease sperm investment in matings with an increasing number…”
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Task-dependent workload adjustment of female breeders in a cooperatively breeding fish by Tanaka, Hirokazu, Frommen, Joachim G, Engqvist, Leif, Kohda, Masanori

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Strategic male mating effort and cryptic male choice in a scorpionfly by Engqvist, Leif, Sauer, Klaus Peter

“…Panorpa cognata…”
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The mistreatment of covariate interaction terms in linear model analyses of behavioural and evolutionary ecology studies by Engqvist, Leif

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Differential sperm expenditure reveals a possible role for post‐copulatory sexual selection in a lekking moth by Cordes, Nils, Yiğit, Arzu, Engqvist, Leif, Schmoll, Tim

“…Male reproductive success in the lesser wax moth Achroia grisella is strongly determined by pre‐copulatory mate choice, during which females choose among males…”
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THE VARIABILITY IS IN THE SEX CHROMOSOMES by Reinhold, Klaus, Engqvist, Leif

“…Sex differences in the mean trait expression are well documented, not only for traits that are directly associated with reproduction. Less is known about how…”
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Male attractiveness is negatively genetically associated with investment in copulations by Engqvist, Leif

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A GENERAL DESCRIPTION OF ADDITIVE AND NONADDITIVE ELEMENTS OF SPERM COMPETITIVENESS AND THEIR RELATION TO MALE FERTILIZATION SUCCESS by Engqvist, Leif

“…A complete understanding of male reproductive success, and thus sexual selection, often requires an insight into male success in sperm competition. Genuine…”
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Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): Consequences of larval history and seasonality on sperm length and sperm transfer by Andreas VERMEULEN, Sierk ENGELS, Leif ENGQVIST, Klaus Peter SAUER

“…We examined effects of seasonality, larval food availability and larval rearing density on sperm length, sperm transfer rates and body size in the bivoltine…”
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Adaptive trans‐generational phenotypic plasticity and the lack of an experimental control in reciprocal match/mismatch experiments by Engqvist, Leif, Reinhold, Klaus, Davey, Matthew

“…Summary Parental information about the prevailing environmental condition may enable offspring to adjust their phenotypes in accordance with future demands…”
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GENETIC CONFLICTS, INTRINSIC MALE FERTILITY, AND EJACULATE INVESTMENT by Engqvist, Leif

“…Few aspects of biology are linked to so many evolutionary conflicts as sperm production and fertilization. Segregation distortion and maternal inheritance of…”
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Evolutionary Modeling Predicts a Decrease in Postcopulatory Sperm Viability as a Response to Increasing Levels of Sperm Competition by Engqvist, Leif

“…Sperm competition has been found to have a strong influence on the evolution of many male and female reproductive traits. Theoretical models have shown that,…”
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When deciding to cooperate by direct reciprocity, Norway rats sometimes benefit from olfactory competence and seem not impaired by insufficient cognitive abilities by Dolivo, Vassilissa, Engqvist, Leif, Taborsky, Michael

“…Direct reciprocity requires the ability to recognize and memorize social partners, and to remember their previous actions. ‘Insufficient cognitive abilities’…”
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A GENERAL DESCRIPTION OF ADDITIVE AND NONADDITIVE ELEMENTS OF SPERM COMPETITIVENESS AND THEIR RELATION TO MALE FERTILIZATION SUCCESS: A GENERAL DESCRIPTION OF SPERM COMPETITIVENESS by Engqvist, Leif

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The evolution of genetic and conditional alternative reproductive tactics by Engqvist, Leif, Taborsky, Michael

“…Frequency-dependent selection may drive adaptive diversification within species. It is yet unclear why the occurrence of alternative reproductive tactics…”
Get full text

GENETIC CONFLICTS, INTRINSIC MALE FERTILITY, AND EJACULATE INVESTMENT: INTRINSIC FERTILITY AND SPERM INVESTMENT by Engqvist, Leif

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