8 Works

Crowding after sudden habitat loss affects demography and social structure in a bat population

Francisco Amorim, Ricardo Pita, Vanessa Mata, Pedro Beja, Hugo Rebelo & Vanessa A. Mata
1. The sudden loss of habitats due to natural or anthropogenic disturbances causes displacement of mobile animals from affected areas to refuge habitats, where large but often transitory concentrations of individuals may occur. While these local density increases have been previously described, the hypothesis that crowding disrupts demographic processes remains largely untested. 2. Here we used the sudden flooding of a river valley by a hydroelectric reservoir as a quasi-experiment to investigate the consequences of...

Data from: Ecological adaptation and birdsong: how body and bill sizes affect passerine sound frequencies

Gonçalo C. Cardoso, Jakob Isager Friis, Joana Sabino, Pedro Santos & Torben Dabelsteen
The avian bill is finely adjusted to foraging ecology and, as part of the vocal tract, it may also affect sexual signals such as songs. Acoustic theory predicts that larger bills lower the resonant frequency of vocal tracts, allowing larger-billed species to emphasize lower sound frequencies. Theory also predicts that larger-billed species can change bill gape so as to sing over a wider frequency bandwidth. We tested these associations between bill size and sound frequencies...

Data from: Landscape genetics reveals contrasting patterns of connectivity in two newt species (Lissotriton montandoni and L. vulgaris)

Bernardo Antunes, Clara Figueiredo-Vázquez, Katarzyna Dudek, Marcin Liana, Maciej Pabijan, Piotr Zieliński & Wiesław Babik
Ecologically distinct species may respond to landscape changes in different ways. In addition to basic ecological data, the extent of the geographic range has been successfully used as an indicator of species sensitivity to anthropogenic landscapes, with widespread species usually found to be less sensitive compared to range-restricted species. In this study, we investigate connectivity patterns of two closely related but ecologically distinct newt species – the range-restricted, Lissotriton montandoni and the widespread, L. vulgaris...

Individual variability in space use near power lines by a long-lived territorial raptor

Ana Teresa Marques, Luís Palma, Rui Lourenco, Rogério Cangarato, Alexandre Leitão, Miguel Mascarenhas, João Tavares, Ricardo Tomé, Francisco Moreira & Pedro Beja
Evaluating species responses to anthropogenic infrastructures and other habitat changes is often used to assess environmental impacts and to guide conservation actions. However, such studies are generally carried out at the population-level, disregarding inter-individual variability. Here, we investigate population- and individual-level responses towards power lines of a territorial raptor, the Bonelli’s eagle Aquila fasciata. We used GPS-PTT tracking data of seventeen adult eagles to model space use as a function of distance to transmission and...

Code and data from: Familiarity, dominance, sex and season shape common waxbill social networks.

Ana Cristina R. Gomes, Patrícia Beltrão, Neeltje J. Boogert & Gonçalo C. Cardoso
In gregarious animals, social network positions of individuals may influence their life-history and fitness. Although association patterns and the position of individuals in social networks can be shaped by phenotypic differences and by past interactions, few studies have quantified their relative importance. We evaluated how phenotypic differences and familiarity influence social preferences and the position of individuals within the social network. We monitored wild-caught common waxbills (Estrilda astrild) with radio-frequency identifiers in a large mesocosm...

Data from: The evolutionary pathways for local adaptation in mountain hares

Iwona Giska, João Pimenta, Liliana Farelo, Pierre Boursot, Klaus Hackländer, Hannes Jenny, Neil Reid, W. Ian Montgomery, Paulo A. Prodöhl, Paulo C. Alves & José Melo-Ferreira
Understanding the evolution of local adaptations is a central aim of evolutionary biology and key for the identification of unique populations and lineages of conservation relevance. By combining RAD sequencing and whole-genome sequencing, we identify genetic signatures of local adaptation in mountain hares (Lepus timidus) from isolated and distinctive habitats of its wide distribution: Ireland, the Alps and Fennoscandia. We recovered full mitochondrial DNA sequences from whole-genome sequencing data and used it to recontruct the...

Collective foraging: Experimentally-increased competition decreases group performance exploiting a permanent resource

Patrícia Beltrão, Ana Cristina R Gomes & Gonçalo C Cardoso
Foraging collectively offers advantages, such as access to social information on food locations, but it may also intensify competition for local resources. Social information may be most advantageous during ecologically challenging conditions, when food sources are scarce or unpredictable, which predicts more collective foraging during such conditions. Alternatively, higher within-group competition when resources are scarce might destabilize social groups and reduce collective foraging. To evaluate these effects, we experimentally decreased the number and predictability of...

Data from: A low-latitude species pump: Peripheral isolation, parapatric speciation and mating-system evolution converge in a marine radiation

Susana C. Almeida, João Neiva, Filipe Sousa, Neusa Martins, Cymon J. Cox, José Melo-Ferreira, Michael D. Guiry Guiry, Ester A. Serrão & Gareth A. Pearson
Geologically recent radiation can shed light on speciation processes, but incomplete lineage sorting and introgressive gene flow render accurate evolutionary reconstruction and interpretation challenging. Independently evolving metapopulations of low-dispersal taxa may provide an additional level of phylogeographic information, given sufficiently broad sampling and genome-wide sequencing. Evolution in the marine brown algal genus Fucus in the south-eastern Atlantic was shaped by Quaternary climate-driven range shifts. Over this timescale, divergence and speciation occurred against a background of...

Registration Year

  • 2022
    8

Resource Types

  • Dataset
    8

Affiliations

  • University of Porto
    8
  • University of Évora
    2
  • Queen's University Belfast
    1
  • National University of Ireland
    1
  • University of Algarve
    1
  • Genetic Resources Center
    1
  • University of Copenhagen
    1
  • Jagiellonian University
    1
  • University of Exeter
    1
  • University of Montpellier
    1