3 Works

Heritable variation in host quality as measured through an ectoparasite's performance

Gerardo Fracasso, Erik Matthysen & Dieter Heylen
Obligate parasites need one or more hosts to complete their life cycle. However, hosts might show intraspecific variation in quality with respect to the parasites themselves, thus affecting on-host and off-host parasite performance. High heritability in host quality for the parasite may therefore exert long-lasting selective pressures on the parasite and influence host–parasite coevolution. However, the amount of variation and heritability in host quality are unknown for most parasite species, especially in wild populations of...

Predictors of individual performance and evolutionary potential of life-history traits in a hematophagous ectoparasite

Gerardo Fracasso, Dieter Heylen, Stefan Van Dongen, Joris Elst & Erik Matthysen
Little is known about the intraspecific variation of parasite life-history traits and on how this variation may affect parasite fitness and evolution. We investigated how life-history traits predict success of individual tree-hole ticks Ixodes arboricola and estimated their evolutionary potential, as well as genetic correlations within stages and phenotypic correlations within and across stages. Ticks were followed individually over two generations while allowed to feed on great tits Parus major. After accounting for host and...

Seascape genetics of the Atlantic spotted dolphin (Stenella frontalis) based on mitochondrial DNA

Karina Bohrer Do Amaral, Dalia C. Barragán-Barrera, Roosevelt A. Mesa-Gutiérrez, Nohelia Farias-Curtidor, Susana J. Caballero Gaitán, Paula Méndez-Fernandez, Marcos C. Oliveira Santos, Caroline Rinaldi, Renato Rinaldi, Salvatore Siciliano, Vidal Martín, Manuel Carillo, Ana Carolina O. De Meirelles, Valentina Franco-Trecu, Nelson J. R. Fagundes, Ignacio Benites Moreno, L. Lacey Knowles & Ana Rita Amaral
The Atlantic spotted dolphin (Stenella frontalis) is endemic to tropical, subtropical, and warm temperate waters of the Atlantic Ocean. Throughout its distribution, both geographic distance and environmental variation may contribute to population structure of the species. In this study we follow a seascape genetics approach to investigate population differentiation of Atlantic spotted dolphins based on a large worldwide dataset and the relationship with marine environmental variables. The results revealed that the Atlantic spotted dolphin exhibits...

Registration Year

  • 2021
    3

Resource Types

  • Dataset
    3

Affiliations

  • Institute of Tropical Medicine Antwerp
    3
  • University of Antwerp
    2
  • Duke University
    1
  • University of Lisbon
    1
  • Centro Jambatu de Investigación y Conservación de Anfibios
    1
  • University of the Republic
    1
  • University of Sao Paulo
    1
  • Federal University of Rio Grande do Sul
    1
  • Faculdades Oswaldo Cruz
    1
  • University of La Rochelle
    1