5 Works

Data from: Extra-pair paternity in two populations of the socially monogamous Thorn-tailed Rayadito Aphrastura spinicauda (Passeriformes: Furnariidae)

Esteban Botero-Delgadillo, Verónica Quirici, Yanina Poblete, Silvina Ippi, Bart Kempenaers & Rodrigo Vasquez
Studies on extra-pair paternity (EPP) are key to understanding the ecological and evolutionary drivers of variation in avian mating strategies, but information is currently lacking for most tropical and sub-tropical taxa. We describe the occurrence of EPP in two populations of a South American socially monogamous bird, the Thorn-tailed Rayadito, based on data from 266 broods and 895 offspring that were sampled during six breeding seasons in north-central and southern Chile. In the northern population,...

Individual quality and extra-pair paternity in the blue tit: sexy males bear the costs

Elisa P Badás, Amaia Autor, Javier Martínez, Juan Rivero-De Aguilar & Santiago Merino
Adaptive explanations for the evolution of extra-pair paternity (EPP) suggest that females seek extra-pair copulations with high quality males. Still, the link between ornamentation, individual quality and paternity remains unclear. Moreover, honest signaling is essential when explaining EPP because it is needed for sexual selection to occur; yet, it is understudied in multiple ornaments. Because blue tits (Cyanistes caeruleus) show variable color expression in several plumage patches, we tested: (i) over two seasons, whether males...

Dataset: Plant-plant facilitation increases with reduced phylogenetic relatedness along an elevation gradient

Milen Duarte
Environmental conditions can modify the intensity and sign of ecological interactions. The stress gradient hypothesis (SGH) predicts that facilitation becomes more important than competition under stressful conditions. To properly test this hypothesis, it is necessary to account for all (not a subset of) interactions occurring in the communities and consider that species do not interact at random but following a specific pattern. We aim to assess elevational changes in facilitation, in terms of species richness,...

Data from: Heterozigosity-fitness correlations in a continental island population of Thorn-tailed Rayadito

Esteban Botero-Delgadillo, Verónica Quirici, Rodrigo A. Vásquez & Bart Kempenaers
Heterozygosity-fitness correlations (HFCs) have been used to monitor the effects of inbreeding in threatened populations. HFCs can also be useful to investigate the potential effects of inbreeding in isolated relict populations of long-term persistence, and to better understand the role of inbreeding and outbreeding as drivers of changes in genetic diversity. We studied a continental island population of thorn-tailed rayadito (Aphrastura spinicauda) inhabiting the relict forest of Fray Jorge National Park, north-central Chile. This population...

Socioeconomic status affects the incidence of COVID-19 in Chilean multiple sclerosis patients

Carlos Guevara
Objective: To investigate the frequency of coronavirus disease (COVID-19) in patients with multiple sclerosis (pwMSs) living in a high socioeconomic vulnerability area in Chile. Methods: In this prospective cohort study, we compared the frequency of COVID-19 in 52 Chilean pwMSs on disease-modifying treatments (DMTs), living in urban municipalities with low-income/high-poverty levels, with that previously reported in pwMSs living in municipalities with high-income/low-poverty rates in Santiago, Chile. Demographic and clinical features of the pwMSs were obtained...

Registration Year

  • 2020
    5

Resource Types

  • Dataset
    5

Affiliations

  • University of Chile
    5
  • Max Planck Institute for Ornithology
    2
  • Andrés Bello University
    2
  • Universidad de las Américas
    1
  • Museo Nacional de Ciencias Naturales
    1
  • National University of Comahue
    1
  • University of Alcalá
    1