9 Works

Plant defense resistance in natural enemies of a specialist insect herbivore

Xi Zhang, Cong Van Doan, Carla C.M. Arce, Lingfei Hu, Sandra Gruenig, Christian Parisod, Bruce E. Hibbard, , Chad Nielson, Christelle A.M. Robert, Ricardo A.R. Machado & Matthias Erb
Plants defend themselves against herbivores through the production of toxic and deterrent metabolites. Adapted herbivores can tolerate and sometimes sequester these metabolites, allowing them to feed on defended plants and become toxic to their own enemies. Can herbivore natural enemies overcome sequestered plant defense metabolites to prey on adapted herbivores? To address this question, we studied how entomopathogenic nematodes cope with benzoxazinoid defense metabolites that are produced by grasses and sequestered by a specialist maize...

Data from: Evaluating NGS methods for routine monitoring of wild bees: metabarcoding, mitogenomics or NGS barcoding

Morgan Gueuning, Dominik Ganser, Simon Blaser, Matthias Albrecht, Eva Knop, Christophe Praz & Juerg E. Frey
Implementing cost-effective monitoring programs for wild bees remains challenging due to the high costs of sampling and specimen identification. To reduce costs, next generation sequencing (NGS)-based methods have lately been suggested as alternatives to morphology-based identifications. To provide a comprehensive presentation of the advantages and weaknesses of different NGS-based identification methods, we assessed three of the most promising ones, namely metabarcoding, mitogenomics and NGS barcoding. Using a regular monitoring dataset (723 specimens identified using morphology),...

Data from: Variable effects on growth and defence traits for plant ecotypic differentiation and phenotypic plasticity along elevation gradients

Moe Bakhtiari, Ludovico Formenti, Veronica Caggìa, Gaëtan Glauser & Sergio Rasmann
Along ecological gradients, phenotypic differentiation can arise through natural selection on trait diversity and magnitude, and environment-driven plastic changes. The magnitude of ecotypic differentiation versus phenotypic plasticity can vary depending on the traits under study. Using reciprocal transplant-common gardens along steep elevation gradients, we evaluated patterns of ecotypic differentiation and phenotypic plasticity of several growth and defence-related traits for two coexisting but unrelated plant species, Cardamine pratensis and Plantago major. For both species, we observed...

Data from: Behavioural patterns of vocal greeting production in four primate species

Pawel Fedurek, Christof Neumann, Yaelle Bouquet, Stephanie Mercier, Martina Magris, Fredy Quintero & Klaus Zuberbühler
Social animals have evolved a range of signals to avoid aggressive and facilitate affiliative interactions. Vocal behaviour is especially important in this respect with many species, including various primates, producing acoustically distinct ‘greeting calls’ when two individuals approach each other. While the ultimate function of greeting calls has been explored in several species, little effort has been made to understand the mechanisms of this behaviour across species. The aim of this study was to explore...

Parasitoids of leaf herbivores enhance plant fitness and do not alter caterpillar-induced resistance against seed beetles

Carlos Bustos-Segura, Maximilien Cuny & Betty Benrey
1. Organisms of the third trophic level can indirectly interact with plants. However, whether parasitoids of herbivores have a positive effect on plant fitness has been controversial. In addition to possible effects on plant fitness, parasitoid-mitigated herbivory can modify plant physiological responses and thereby alter the plant-mediated indirect interactions between different herbivore species. These types of indirect multitrophic interactions remain largely unexplored. Thus, to understand the full effect of the third trophic level on plants,...

Data from: A nation-wide survey of neonicotinoid insecticides in agricultural land with implications for agri-environment schemes

Ségolène Humann-Guilleminot, Łukasz Binkowski, Lukas Jenni, Gabriele Hilke, Gaétan Glauser & Fabrice Helfenstein
1. Neonicotinoids are the most widely used class of insecticides globally. However, the link between farming practices and the extent of contamination of soils and crops by neonicotinoid insecticides, as well as and the extent of such contamination in organic fields and ecological focus areas (EFAs) are currently unclear. 2. We measured the concentrations of five neonicotinoid insecticides (imidacloprid, clothianidin, thiamethoxam, thiacloprid, acetamiprid) in 702 soil and plant samples in 169 cultivated fields and EFAs...

Reinforcement learning theory reveals the cognitive requirements for solving the cleaner fish market task

Andres Quiñones, Olof Leimar, Arnon Lotem & Redoaun Bshary
Learning is an adaptation that allows individuals to respond to environmental stimuli in ways that improve their reproductive outcomes. The degree of sophistication in learning mechanisms potentially explains variation in behavioural responses. Here, we present a model of learning that is inspired by documented intra- and interspecific variation in the performance in a simultaneous two-choice task, the ‘biological market task’. The task presents a problem that cleaner fish often face in nature: the decision of...

Data from: Genome-wide variation in nucleotides and retrotransposons in alpine populations of Arabis alpina (Brassicaceae)

Aude Rogivue, Rimjhim Roy Choudhury, Stefan Zoller, Stéphane Joost, Francois Felber, Michel Kasser, Christian Parisod & Felix Gugerli
Advances in high-throughput sequencing have promoted the collection of reference genomes and genome-wide diversity. However, the assessment of genomic variation among populations has hitherto mainly been surveyed through single-nucleotide polymorphisms (SNPs) and largely ignored the often major fraction of genomes represented by transposable elements (TEs). Despite accumulating evidence supporting the evolutionary significance of TEs, comprehensive surveys remain scarce. Here, we sequenced the full genomes of 304 individuals of Arabis alpina sampled from four nearby natural...

Data from: The effect of parasite infection on the recombination rate of the yellow fever mosquito Aedes aegyti

Giacomo Zilio, Moesch Lea, Bovet Nathalie, Sarr Anouk & Koella Jacob
Sexual reproduction and meiotic recombination generate new genetic combinations and may thereby help an individual infected by a parasite to protect its offspring from being infected. While this idea is often used to understand the evolutionary forces underlying the maintenance of sex and recombination, it also suggests that infected individuals should increase plastically their rate of recombination. We tested the latter idea with the mosquito Aedes aegypti and asked whether females infected by the microsporidian...

Registration Year

  • 2019
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Resource Types

  • Dataset
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Affiliations

  • University of Neuchâtel
    9
  • University of Bern
    3
  • University of Padua
    1
  • University of Rennes 2
    1
  • École Polytechnique Fédérale de Lausanne
    1
  • Ars Electronica Center
    1
  • Swiss Ornithological Institute
    1
  • University of Stirling
    1
  • Swiss Federal Institute for Forest, Snow and Landscape Research
    1
  • Agroscope
    1