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Träfflista för sökning "WFRF:(Velasquez Velez María) "

Search: WFRF:(Velasquez Velez María)

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1.
  • Bernal, Ximena E., et al. (author)
  • Empowering Latina scientists
  • 2019
  • In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 363:6429, s. 825-826
  • Journal article (other academic/artistic)
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2.
  • Sánchez-Guillén, Rosa A., et al. (author)
  • Alternative reproductive strategies and the maintenance of female color polymorphism in damselflies
  • 2017
  • In: Ecology and Evolution. - : Wiley. - 2045-7758. ; 7:15, s. 5592-5602
  • Journal article (peer-reviewed)abstract
    • Genetic polymorphisms are powerful model systems to study the maintenance of diversity in nature. In some systems, polymorphisms are limited to female coloration; these are thought to have arisen as a consequence of reducing male mating harassment, commonly resulting in negative frequency-dependent selection on female color morphs. One example is the damselfly Ischnura elegans, which shows three female color morphs and strong sexual conflict over mating rates. Here, we present research integrating male tactics, and female evolutionary strategies (female mating behavior and morph-specific female fecundity) in populations with different morph-specific mating frequencies, to obtain an understanding of mating rates in nature that goes beyond the mere measure of color frequencies. We found that female morph behavior differed significantly among but not within morphs (i.e., female morph behavior was fixed). In contrast, male tactics were strongly affected by the female morph frequency in the population. Laboratory work comparing morph-specific female fecundity revealed that androchrome females have lower fecundity than both of the gynochrome female morphs in the short term (3-days), but over a 10-day period one of the gynochrome female morphs became more fecund than either of the other morphs. In summary, our study found sex-specific dynamics in response to different morph frequencies and also highlights the importance of studying morph-specific fecundities across different time frames to gain a better understanding of the role of alternative reproductive strategies in the maintenance of female-limited color polymorphism.
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3.
  • Sánchez-Guillén, Rosa A., et al. (author)
  • The evolutionary history of colour polymorphism in Ischnura damselflies
  • 2018
  • In: Journal of evolutionary biology. - 1010-061X.
  • Journal article (peer-reviewed)abstract
    • A major challenge in evolutionary biology consists of understanding how genetic and phenotypic variation is created and maintained. In this study, we investigated the origin(s) and evolutionary patterns of the female-limited colour polymorphism in ischnuran damselflies. These consist of the presence of one to three colour morphs: one androchrome morph with a coloration that is similar to the male and two gynochrome morphs (infuscans and aurantiaca) with female-specific coloration. We (i) documented the colour and mating system of 44 of the 75 taxa within the genus Ischnura, (ii) reconstructed the evolutionary history of colour and mating system to identify the ancestral state, (iii) evaluated the stability of the colour morph status over time and (iv) tested for a correlation between colour and mating system. We found that the ancestral female colour of Ischnura was monomorphic and aurantiaca and that colour morph status changed over time, characterized by many gains and losses across the species tree. Our results further showed that colour polymorphism is significantly more frequent among polyandric species, whereas monandric species tend to be monomorphic. Research on some Ischnura species has shown that colour morphs have evolved to reduce male mating harassment, and our finding that the same phenotypic morphs have evolved multiple times (convergent evolution) suggests that several species in this genus might be experiencing similar selective pressures.
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  • Result 1-3 of 3
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journal article (3)
Type of content
peer-reviewed (2)
other academic/artistic (1)
Author/Editor
Cordero-Rivera, Adol ... (2)
Wellenreuther, Maren (2)
Hansson, Bengt (1)
Castaneda-Gomez, Lau ... (1)
Guedes, Thais (1)
Zapata, Felipe (1)
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Orizaola, German (1)
Dick, Christopher W. (1)
Pimiento, Catalina (1)
Ortiz-Barrientos, Da ... (1)
Bernal, Ximena E. (1)
Rojas, Bibiana (1)
Pinto-E, Maria Aleja ... (1)
Mendoza-Henao, Angel ... (1)
Herrera-Montes, Adri ... (1)
Isabel Herrera-Monte ... (1)
Caceres Franco, Andr ... (1)
Ceron-Souza, Ivania (1)
Paz, Andrea (1)
Vergara, Daniela (1)
Barragan Contreras, ... (1)
Salazar, Camilo (1)
Bohorquez Alonso, Ma ... (1)
Sanchez, Adriana (1)
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Guayasamin, Juan M. (1)
Uy, Floria Mora-Kepf ... (1)
Feris, Faride Lamadr ... (1)
Franco-Orozco, Barba ... (1)
Munoz, Martha M. (1)
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Sanchez Herrera, Mel ... (1)
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Tarvin, Rebecca D. (1)
Marquez, Roberto (1)
Lopez-Aguirre, Camil ... (1)
Ron, Santiago R. (1)
Ramirez, Santiago (1)
Paez-Vacas, Monica (1)
Gaitan-Espitia, Juan ... (1)
Vianna, Juliana A. (1)
Varela-Jaramillo, An ... (1)
Sanchez-Martinez, Pa ... (1)
Caminer Rodriguez, M ... (1)
Garcia-Robledo, Carl ... (1)
Kuprewicz, Erin K. (1)
Gomez-Bahamon, Valen ... (1)
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University
Lund University (2)
Chalmers University of Technology (1)
Language
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Natural sciences (3)
Medical and Health Sciences (1)

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