6 Works

Data from: Evolutionary dynamics of specialisation in herbivorous stick insects

Chloé Larose, Sergio Rasmann & Tanja Schwander
Understanding the evolutionary dynamics underlying herbivorous insect mega-diversity requires investigating the ability of insects to shift and adapt to different host plants. Feeding experiments with nine related stick insect species revealed that insects retain the ability to use ancestral host plants after shifting to novel hosts, with host plant shifts generating fundamental feeding niche expansions. These expansions were however not accompanied by expansions of the realized feeding niches, as species on novel hosts are generally...

Data from: Male monkeys use punishment and coercion to de-escalate costly intergroup fights

T. Jean M. Arseneau-Robar, Eliane Müller, Anouk L. Taucher, Carel P. Van Schaik, Redouan Bshary & Erik P. Willems
In numerous social species, males direct aggression towards female group members during intergroup fights, and this behaviour is commonly thought to function as mate guarding, even though males often target non-receptive females. In studying intergroup fights in a wild population of vervet monkeys, we found that male intragroup aggression was primarily directed towards individuals who had either just finished exhibiting, or were currently attempting to instigate intergroup aggression. Targeted females were less likely to instigate...

Data from: Growth-competition-herbivore resistance trade-offs and the responses of alpine plant communities to climate change

Loïc Pellissier, Patrice Descombes, Oskar Hagen, Loïc Chalmandrier, Gaëtan Glauser, Alan Kergunteuil, Emmanuel Defossez & Sergio Rasmann
1. Climate change is expected to modify current ecological conditions sustaining the coexistence of species within cold-adapted plant communities, by influencing species growth, modifying competition and levels of herbivory. Climate change will act upon the existing structure of communities, whose response should depend on the functional differences governing coexistence among alpine species. We postulated that a possible trade-off between (i) plant growth in response to temperature, (ii) plant competition, and (iii) resistance to herbivory, should...

Data from: Effects of an early-life paraquat exposure on adult resistance to oxidative stress, plumage colour and sperm performance in a wild bird

Sylvain Losdat, Jonathan D. Blount, Viviana Marri, Lea Maronde, Heinz Richner & Fabrice Helfenstein
1. Early-life stressful conditions can shape individual phenotypes and ultimately influence fitness. Oxidative stress is a pervasive threat that affects many fitness-related traits and can modulate life-history trade-offs. Yet, the extent to which exposure to oxidative stress during early life can have long-lasting effects on key fitness-related traits remains to be elucidated, particularly in natural populations of vertebrates. 2. Using a wild population of great tits Parus major, we experimentally dosed 11 day-old birds with...

Data from: Host genotype and environment affect the trade-off between horizontal and vertical transmission of the parasite Edhazardia aedis

Giacomo Zilio, Kevin Thiévent & Jacob C. Koella
Background: If a parasite is able to transmit horizontally or vertically, which transmission mode will it choose? We investigated how the growth conditions and the genotype of the mosquito Aedes aegypti affect the transmission mode of the parasite Edhazardia aedis. Results: In poor conditions the parasites were more likely to be transmitted horizontally, whereas in favourable conditions they were more likely to be transmitted vertically. This plasticity appears to be adaptive. Unfavourable conditions delayed emergence,...

Data from: The unfolding of plant growth form-defence syndromes along elevation gradients

Emmanuel Defossez, Loïc Pellisier & Sergio Rasmann
Understanding the functional economics that drives plant investment of resources requires investigating the interface between plant phenotypes and the variation in ecological conditions. While allocation to defence represents a large portion of the carbon budget, this axis is usually neglected in the study of plant economic spectrum. Using a novel geometrical approach, we analysed the co‐variation in a comprehensive set of functional traits related to plant growth strategies, as well as chemical defences against herbivores...

Registration Year

  • 2018
    6

Resource Types

  • Dataset
    6

Affiliations

  • University of Neuchâtel
    6
  • Swiss Federal Institute for Forest, Snow and Landscape Research
    2
  • University of Lausanne
    1
  • University of Zurich
    1
  • University of Bern
    1
  • University of Exeter
    1