7 Works

Data from: Oligocene niche shift, Miocene diversification - cold tolerance and accelerated speciation rates in the St. John's Worts (Hypericum, Hypericaceae)

Nicolai M. Nürk, Simon Uribe-Convers, Berit Gehrke, David C. Tank & Frank R. Blattner
Background: Our aim is to understand the evolution of species-rich plant groups that shifted from tropical into cold/temperate biomes. It is well known that climate affects evolutionary processes, such as how fast species diversify, species range shifts, and species distributions. Many plant lineages may have gone extinct in the Northern Hemisphere due to Late Eocene climate cooling, while some tropical lineages may have adapted to temperate conditions and radiated; the hyper-diverse and geographically widespread genus...

Data from: Negative association between parental care and sibling cooperation in earwigs: a new perspective on the early evolution of family life?

Jos Kramer, Julia Thesing & Joël Meunier
The evolution of family life requires net fitness benefits for offspring, which are commonly assumed to mainly derive from parental care. However, an additional source of benefits for offspring is often overlooked: cooperative interactions among juvenile siblings. In this study, we examined how sibling cooperation and parental care could jointly contribute to the early evolution of family life. Specifically, we tested whether the level of food transferred among siblings (sibling cooperation) in the European earwig...

Data from: Feces production as a form of social immunity in an insect with facultative maternal care

Janina M. C. Diehl, Maximilian Körner, Michael Pietsch & Joël Meunier
Background: Social animals have the unique capability of mounting social defenses against pathogens. Over the last decades, social immunity has been extensively studied in species with obligatory and permanent forms of social life. However, its occurrence in less derived social systems and thus its role in the early evolution of group-living remains unclear. Here, we investigated whether lining nests with feces is a form of social immunity against microbial growth in the European earwig Forficula...

Data from: Short-term benefits, but transgenerational costs of maternal loss in an insect with facultative maternal care

Julia Thesing, Jos Kramer, Lisa K. Koch & Joël Meunier
A lack of parental care is generally assumed to entail substantial fitness costs for offspring that ultimately select for the maintenance of family life across generations. However, it is unknown whether these costs arise when parental care is facultative, thus questioning their fundamental importance in the early evolution of family life. Here, we investigated the short-term, long-term and transgenerational effects of maternal loss in the European earwig Forficula auricularia, an insect with facultative post-hatching maternal...

Data from: The parasite’s long arm: a tapeworm parasite induces behavioural changes in uninfected group members of its social host

Sara Beros, Evelien Jongepier, Felizitas Hagemeier & Susanne Foitzik
Parasites can induce alterations in host phenotypes in order to enhance their own survival and transmission. Parasites of social insects might not only benefit from altering their individual hosts, but also from inducing changes in uninfected group members. Temnothorax nylanderi ant workers infected with the tapeworm Anomotaenia brevis are known to be chemically distinct from nestmates and do not contribute to colony fitness, but are tolerated in their colonies and well cared-for. Here, we investigated...

Data from: Gene expression patterns underlying parasite-induced alterations in host behaviour and life history

Barbara Feldmeyer, Johanna Mazur, Sara Beros, Hannes Lerp, Harald Binder & Susanne Foitzik
Many parasites manipulate their hosts’ phenotype. In particular, parasites with complex life cycles take control of their intermediate hosts’ behaviour and life history to increase transmission to their definitive host. The proximate mechanisms underlying these parasite-induced alterations are poorly understood. The cestode Anomotaenia brevis affects the behaviour, life history and morphology of parasitized Temnothorax nylanderi ants and indirectly of their unparasitized nestmates. To gain insights on how parasites alter host phenotypes, we contrast brain gene...

Data from: Fitness costs of worker specialisation for ant societies

Evelien Jongepier & Susanne Foitzik
Division of labour is of fundamental importance for the success of societies, yet little is known about how individual specialization affects the fitness of the group as a whole. While specialized workers may be more efficient in the tasks they perform than generalists, they may also lack the flexibility to respond to rapid shifts in task needs. Such rigidity could impose fitness costs when societies face dynamic and unpredictable events, such as an attack by...

Registration Year

  • 2015

Resource Types

  • Dataset


  • Johannes Gutenberg University of Mainz
  • Institute of Plant Genetics and Crop Plant Research
  • Heidelberg University
  • University of Idaho
  • Goethe University Frankfurt
  • Institute of Medical Microbiology and Hygiene