7 Works

Data from: Striking cuticular hydrocarbon dimorphism in the mason wasp Odynerus spinipes and its possible evolutionary cause (Hymenoptera: Chrysididae, Vespidae)

Mareike Wurdack, Sina Herbertz, Daniel Dowling, Johannes Kroiss, Erhard Strohm, Hannes Baur, Oliver Niehuis & Thomas Schmitt
Cleptoparasitic wasps and bees smuggle their eggs into the nest of a host organism. Here the larvae of the cleptoparasite feed upon the food provision intended for the offspring of the host. As cleptoparasitism incurs a loss of fitness for the host organism (offspring of the host fail to develop), hosts of cleptoparasites are expected to exploit cues that alert them to potential cleptoparasite infestation. Cuticular hydrocarbons (CHCs) could serve as such cues, as insects...

Data from: Queen-worker ratio affects reproductive skew in a socially polymorphic ant

Bartosz Walter & Jürgen Heize
The partitioning of reproduction among individuals in communally breeding animals varies greatly among species, from the monopolization of reproduction (high reproductive skew) to similar contribution to the offspring in others (low skew). Reproductive skew models explain how relatedness or ecological constraints affect the magnitude of reproductive skew. They typically assume that individuals are capable of flexibly reacting to social and environmental changes. Most models predict a decrease of skew when benefits of staying in the...

Data from: Nest etiquette - where ants go when nature calls

Tomer J. Czaczkes, Jürgen Heinze & Joachim Ruther
Sanitary behaviour is an important, but seldom studied, aspect of social living. Social insects have developed several strategies for dealing with waste and faecal matter, including dumping waste outside the nest and forming specialised waste-storage chambers. In some cases waste material and faeces are put to use, either as a construction material or as a long-lasting signal, suggesting that faeces and waste may not always be dangerous. Here we examine a previously undescribed behaviour in...

Data from: Composite collective decision making

Tomer J. Czaczkes, Benjamin Czaczkes, Carolin Iglhaut & Jürgen Heinze
Individual animals are adept at making decisions and have cognitive abilities, such as memory, which allow them to hone their decisions. Social animals can also share information. This allows social animals to make adaptive group-level decisions. Both individual and collective decision-making systems also have drawbacks and limitations, and while both are well studied, the interaction between them is still poorly understood. Here, we study how individual and collective decision-making interact during ant foraging. We first...

Data from: Ants adjust their pheromone deposition to a changing environment and their probability of making errors

Tomer J. Czaczkes & Jürgen Heinze
Animals must contend with an ever-changing environment. Social animals, especially eusocial insects such as ants and bees, rely heavily on communication for their success. However, in a changing environment communicated information can become rapidly outdated. This is a particular problem for pheromone-trail using ants, as once deposited pheromones cannot be removed. Here we study the response of ant foragers to an environmental change. Ants were trained to one feeder location, and the feeder was then...

Data from: Mating with an allopatric male triggers immune response and decreases longevity of ant queens

Alexandra Schrempf, Katharina Wyschetzki, Antonia Klein, Lukas Schrader, Jan Oettler & Juergen Heinze
In species with lifelong pair bonding, the reproductive interests of the mating partners are aligned, and males and females are expected to jointly maximize their reproductive success. Mating increases both longevity and fecundity of female reproductives (queens) of the ant Cardiocondyla obscurior, indicating a tight co-evolution of mating partners. Here, we show that mating with a male from their own population increases lifespan and reproductive success of queens more than mating with a male from...

Data from: Seed dispersal by ungulates as an ecological filter: a trait-based meta-analysis

Aurélie Albert, Alistair G. Auffret, Eric Cosyns, Sara A. O. Cousins, Bram D'Hondt, Carsten Eichberg, Amy E. Eycott, Thilo Heinken, Maurice Hoffmann, Bogdan Jaroszewicz, Juan E. Malo, Anders Mårell, Maarten Mouissie, Robin J. Pakeman, Mélanie Picard, Jan Plue, Peter Poschlod, Sam Provoost, Kiowa Alraune Schulze & Christophe Baltzinger
Plant communities are often dispersal-limited and zoochory can be an efficient mechanism for plants to colonize new patches of potentially suitable habitat. We predicted that seed dispersal by ungulates acts as an ecological filter – which differentially affects individuals according to their characteristics and shapes species assemblages – and that the filter varies according to the dispersal mechanism (endozoochory, fur-epizoochory and hoof-epizoochory). We conducted two-step individual participant data meta-analyses of 52 studies on plant dispersal...

Registration Year

  • 2015

Resource Types

  • Dataset


  • University of Regensburg
  • Ghent University
  • Research Institute for Nature and Forest
  • Museum and Institute of Zoology
  • Zoological Research Museum Alexander Koenig
  • University of Freiburg
  • University of Warsaw
  • University of Potsdam
  • Hebrew University of Jerusalem
  • James Hutton Institute